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Tuesday, 1 August 2017

How Easily Can You Extract Data From Web

How Easily Can You Extract Data From Web

With tech advancements taking the entire world by a storm, every sector is undergoing massive transformations. As far as the business arena is concerned, the rise of big data and data analytic is playing a crucial part in operations. Big data and data analysis is the best way to identify customer interests. Businesses can gain crystal clear insights into consumers’ preferences, choices, and purchase behaviours, and that’s what leads to unmatched business success. So, it’s here that we come across a crucial question. How do enterprises and organizations leverage data to gain crucial insights into consumer preferences? Well, data extraction and mining are the two significant processes in this context. Let’s take a look at what data extraction means as a process.

Decoding data extraction

Businesses across the globe are trying their best to retrieve crucial data. But, what is it that’s helping them do that? It’s here that the concept of data extraction comes into the picture. Let’s begin with a functional definition of this concept. According to formal definitions, ‘data extraction’ refers to the retrieval of crucial information through crawling and indexing. The sources of this extraction are mostly poorly-structured or unstructured data sets. Data extraction can prove to be highly beneficial if done in the right way. With the increasing shift towards online operations, extracting data from the web has become highly important.

The emergence of ‘scraping’

The act of information or data retrieval gets a unique name, and that’s what we call ‘data scraping.’ You might have already decided to pull data from 3rd party websites. If that’s what it is, then it’s high time to embark on the project. Most of the extractors will begin by checking the presence of APIs. However, they might be unaware of a crucial and unique option in this context.

Automatic data support

Every website lends virtual support to a structured data source, and that too by default. You can pull out or retrieve highly relevant data directly from the HTML. The process is termed as ‘web scraping’ and can ensure numerous benefits for you. Let’s check out how web scraping is useful and awesome.

Any content you view is ready for scraping

All of us download various stuff throughout the day. Whether it is music, important documents or images, downloads seem to be regular affairs. When you are successful in downloading any particular content of a page, it means the website offers unrestricted access to your browser. It won’t take long for you to understand that the content is programmatically accessible too. On that note, it’s high time to work out effective reasons that define the importance of web scraping. Before opting for RSS feeds, APIs, or other conventional data extraction methods, you should assess the benefits of web scraping. Here’s what you need to know in this context.

Website vs. APIs: Who’s the winner?

Site owners are more concerned about their public-facing or official websites than the structured data feeds. APIs can change, and feeds can shift without prior notifications. The breakdown of Twitter’s developer ecosystem is a crucial example for this.

So, what are the reasons for this downfall?

At times, these errors are deliberate. However, the crucial reasons are something else. Most of the enterprises are completely unaware of their structured data and information. Even if the data gets damaged, altered, or mangled, there’s no one to care about it.

However, that isn’t what happens with the website. When an official website stops functioning or delivers poor performance, the consequences are direct and in-your-face. Quite naturally, developers and site owners decide to fix it almost instantaneously.

Zero-rate limiting

Rate-limiting doesn’t exist for public websites. Although it’s imperative to build defences against access automation, most of the enterprises don’t care to do that. It’s only done if there are captchas on signups. If you aren’t making repeated requests, there are no possibilities of you being considered as a DDOS attack.

In-your-face data

Web scraping is perhaps the best way to gain access to crucial data. The desired data sets are already there, and you won’t have to rely on APIs or other data sources for gaining access. All you need to do is browse the site and find out the most appropriate data. Identifying and figuring out the basic data patterns will help you to a great extent.

Unknown and Anonymous access

You might want to gather information or collect data secretly. Simply put, you might wish to keep the entire process highly confidential. APIs will demand registrations and give you a key, which is the most important part of sending requests. With HTTP requests, you can stay secure and keep the process confidential, as the only aspects exposed are your site cookies and IP address. These are some of the reasons explaining the benefits of web scraping. Once you are through with these points, it’s high time to master the art of scraping.

Getting started with data extraction

If you are already eager to grab data, it’s high time you work on the blueprints for the project. Surprised? Well, data scraping or rather web data scraping requires in-depth analysis along with a bit of upfront work. While documentations are available with APIs, that’s not the case with HTTP requests. Be patient and innovative, as that will help you throughout the project.

2. Data fetching

Begin the process by looking for the URL and knowing the endpoints. Here are some of the pointers worth considering:

- Organized information: You must have an idea of the kind of information you want. If you wish to have it in an organized manner, rely on the navigation offered by the site. Track the changes in the site URL while you click through sections and sub-sections.
- Search functionality: Websites with search functionality will make your job easier than ever. You can keep on typing some of the useful terms or keywords based on your search. While doing so, keep track of URL changes.
- Removing unnecessary parameters: When it comes to looking for crucial information, the GET parameter plays a vital role. Try looking for unnecessary and undesired GET parameters in the URL, and removing them from the URL. Keep the ones that’ll help you load the data.

2. Pagination comes next

While looking for data, you might have to scroll down and move to subsequent pages. Once you click to Page 2, ‘offset=parameter’ gets added to the selected URL. Now, what is this function all about? The ‘offset=parameter’ function can represent either the number of features on the page or the page-numbering itself. The function will help you perform multiple iterations until you attain the “end of data” status.

Trying out AJAX

Most of the people nurture certain misconceptions about data scraping. While they think that AJAX makes their job tougher than ever, it’s actually the opposite. Sites utilising AJAX for data-loading ensures smooth data scraping. The time isn’t far away when AJAX will return along with JavaScript. Pulling up the ‘Network’ tab in Firebug or Web Inspector will be the best thing to do in this context. With these tips in mind, you will have the opportunity to get crucial data or information from the server. You need to extract the information and get it out of the page markup, which is the most difficult or tricky part of the process.

Unstructured data issues

When it comes to dealing with unstructured data, you will need to keep certain crucial aspects in mind. As stated earlier, pulling out the data from page markups is a highly critical task. Here’s how you can do it:

1. Utilising the CSS hooks

According to numerous web designers, the CSS hooks happen to be the best resources for puling data. Since it doesn’t involve numerous classes, CSS hooks offer straightforward data scraping.

2. Good HTML Parsing

Having a good HTML library will help you in ways more than one. With the help of a functional and dynamic HTML parsing library, you can create several iterations as and when you wish to.
Knowing the loopholes

Web scraping won’t be an easy affair. However, it won’t be a hard nut to crack either. While knowing the crucial web scraping tips is necessary, it’s also imperative to get an idea of the traps. If you have been thinking about it, we have something for you!

- Login contents: Contents that require you to login might prove to be potential traps. It reveals your identity and wreaks havoc on your project’s confidentiality.

- Rate limiting: Rate limiting can affect your scraping needs both positively and negatively, and that entirely depends on the application you are working on.

Source:-https://www.promptcloud.com/blog/how-easy-is-data-extraction

Friday, 21 July 2017

How Hedge Funds Can Use Web Scraping

How Hedge Funds Can Use Web Scraping

Web scraping or data extraction is the need of the hour to make sense of the huge and varied data being generated across multiple sources on the web. Irrespective of the sector you are working in, data extraction and mining is a crucial necessity to glean insights into consumer behavior, market forces, competitive intelligence, and price movements, and assist in management decision making.

There’s no denying the fact that numerous brands and enterprises are leveraging data extraction for further development and growth. Of late, hedge fund owners too are showing a huge affinity to utilizing the prowess of web scraping for unlocking new investment opportunities.

What we need to know is how web scraping is helping out hedge fund owners. What is it that makes web scraping essential for them and how can they use the technology to their advantage?
Fund management with web scraping

For a majority of discretionary fund managers, web scraping is a relatively new term. Although data scientists are aware of the concept, they might not have the right skills that lead to effective use of web scraping and data extraction. So, how does hedge fund management take place now? Let’s take a look at the current processes.

Most of the hedge funds have dedicated and centralized teams looking after the data extraction process. They have a group which is continuously looking for crucial data thus extracting it for more information. Once they find what they are looking for, they seek assistance from skilled data scientists who prepare comprehensive reports on the key findings. Based on these reports, managers have to take significant steps and implement crucial business strategies.

It’s here that the major problem arises. Most of these managers aren’t aware of the technicalities involved in data extraction. They don’t know what to do with these reports when it comes to devising business strategies.
The need for effective techniques

What you need is a comprehensive and integrated approach towards the entire process. Data scientists and business managers should have crystal clear understanding of web scraping thus working in tandem for better results. Here’s how they can work together:

1. Portfolio managers: PMs will need to develop a comprehensive understanding of trading strategies along with the power to explain his understandings. He should have the power to identify alpha opportunities.

2. Data scientists: Data scientists should know the art of data mining thus ingesting the findings into a database.

Simultaneous operations should take place where PMs, data scientists, and web scraping experts will take active parts. In a nutshell, business owners need highly efficient quant teams capable of extracting quant data sets.
The steps around web scraping for hedge funds

If you are managing hedge funds, data extraction and web scraping will be essential for you. Before knowing how to use this particular technique, make sure you gain information about the crucial steps that lead to web scraping.

•   Gaining access to data sets: Without the right data sets, it is impossible to perform web scraping. Data scientists and PMs must put their best efforts to find the correct information. It can come from internal divisions, external publications, or even from social media.

•   Understanding the financial drivers: You should know about the financial drivers involved in the process. Web scraping will depend on these key drivers to a great extent.

•   Quant vs. fundamental: There’s always a debate between data quants and fundamental knowledge. The prime emphasis should always be on identifying the insights, working on them, and turning them into effective actions.

With these steps in mind, you can plan the fund management process in detail thus taking the venture towards unsurpassed growth. Hedge fund owners have been relying on fundamental knowledge since a long time; it is high time they made a move and embraced web scraping.

Current positions and prospects

If market reports are anything to go by, you will come across nearly 70 hedge funds who claim to leverage big data. Once you take a closer look, the entire situation will get revealed. Only 20 amongst these 70 hedge funds work with Big Data and rely on web scraping techniques. Market reports also suggest that only a few of them are good at performing the process.

Web scraping is going to be the future! Just after a few years, hedge fund owners will have to rely on web scraping for effective fund management. Therefore, it’s high time to upgrade performances, processes, and operations. Those getting introduced to the concept for the first time should learn the art of performing web scraping and data extraction.

Building strong and effective financial models

Do you feel the existing infrastructure is enough to leverage web scraping? That’s not true, as there are numerous other aspects involved in the process. The presence of a strong and reliable financial model is of paramount significance. Financial models play a highly significant part in the utilization of technologies. If you are thinking of implementing web scraping, check the financial infrastructure and support your venture offers to you.

The third wave

Before the emergence of web scraping and data extraction, hedge fund owners relied on traditional data mining techniques. Those weren’t effective to a great extent, as they failed to offer targeted insights into the extraction process.

It’s here that the need for a third wave came up, and web scraping was what we all waited for. With this new and innovative technology, hedge fund managers will be able to utilize insights to stay ahead of the growth curve!

Final thoughts

Hedge fund management involves quite a few significant processes in order to yield the benefits expected by senior management of the company. However, if you are planning to use web scraping, it is important to know the right tips to do so. Most of the data scientists want to bridge the gap between fundamental fund management and web scraping. It is quite obvious that the latter is beneficial in the long run. With these tips and web scraping techniques in mind, you can ensure targeted hedge fund management and handling.

Source:https://www.promptcloud.com/blog/how-hedge-funds-can-use-web-scraping

Thursday, 29 June 2017

The Ultimate Guide to Web Data Extraction

Web data is of great use to Ecommerce portals, media companies, research firms, data scientists, government and can even help the healthcare industry with ongoing research and making predictions on the spread of diseases.

Consider the data available on classifieds sites, real estate portals, social networks, retail sites, and online shopping websites etc. being easily available in a structured format, ready to be analyzed. Most of these sites don’t provide the functionality to save their data to a local or cloud storage. Some sites provide APIs, but they typically come with restrictions and aren’t reliable enough. Although it’s technically possible to copy and paste data from a website to your local storage, this is inconvenient and out of question when it comes to practical use cases for businesses.



Web scraping helps you do this in an automated fashion and does it far more efficiently and accurately. A web scraping setup interacts with websites in a way similar to a web browser, but instead of displaying it on a screen, it saves the data to a storage system.

Applications of web data extraction
1. Pricing intelligence

Pricing intelligence is an application that’s gaining popularity by each passing day given the tightening of competition in the online space. E-commerce portals are always watching out for their competitors using web crawling to have real time pricing data from them and to fine tune their own catalogs with competitive pricing. This is done by deploying web crawlers that are programmed to pull product details like product name, price, variant and so on. This data is plugged into an automated system that assigns ideal prices for every product after analyzing the competitors’ prices.

Pricing intelligence is also used in cases where there is a need for consistency in pricing across different versions of the same portal. The capability of web crawling techniques to extract prices in real time makes such applications a reality.

2. Cataloging

Ecommerce portals typically have a huge number of product listings. It’s not easy to update and maintain such a big catalog. This is why many companies depend on web date extractions services for gathering data required to update their catalogs. This helps them discover new categories they haven’t been aware of or update existing catalogs with new product descriptions, images or videos.

3. Market research

Market research is incomplete unless the amount of data at your disposal is huge. Given the limitations of traditional methods of data acquisition and considering the volume of relevant data available on the web, web data extraction is by far the easiest way to gather data required for market research. The shift of businesses from brick and mortar stores to online spaces has also made web data a better resource for market research.

4. Sentiment analysis

Sentiment analysis requires data extracted from websites where people share their reviews, opinions or complaints about services, products, movies, music or any other consumer focused offering. Extracting this user generated content would be the first step in any sentiment analysis project and web scraping serves the purpose efficiently.

5. Competitor analysis

The possibility of monitoring competition was never this accessible until web scraping technologies came along. By deploying web spiders, it’s now easy to closely monitor the activities of your competitors like the promotions they’re running, social media activity, marketing strategies, press releases, catalogs etc. in order to have the upper hand in competition. Near real time crawls take it a level further and provides businesses with real time competitor data.

6. Content aggregation

Media websites need instant access to breaking news and other trending information on the web on a continuous basis. Being quick at reporting news is a deal breaker for these companies. Web crawling makes it possible to monitor or extract data from popular news portals, forums or similar sites for trending topics or keywords that you want to monitor. Low latency web crawling is used for this use case as the update speed should be very high.

7. Brand monitoring

Every brand now understands the importance of customer focus for business growth. It would be in their best interests to have a clean reputation for their brand if they want to survive in this competitive market. Most companies are now using web crawling solutions to monitor popular forums, reviews on ecommerce sites and social media platforms for mentions of their brand and product names. This in turn can help them stay updated to the voice of the customer and fix issues that could ruin brand reputation at the earliest. There’s no doubt about a customer-focused business going up in the growth graph.

Source url :-https://www.promptcloud.com/blog/ultimate-web-data-extraction-guide

Tuesday, 20 June 2017

Six Tools to Make Data Scraping More Approachable

What is data scraping?

Data scraping is a technique in which a computer program/software extracts data from a website, so it can be used for other purposes.Scraping may sound a little intimidating, but with the help of scraping tools, the process can be a lot more approachable. The tools are used to capture data you need from specific web pages quicker and easier.

Let your computer do all the work

It takes only a few minutes for systems to recognize each others codes even in huge databases. Computers have their own language and that is why some of these tools make it easier to pull and format information in a way that is simpler for people to reuse.

Here is a list of some data scraping tools:

1.Diffbot

What makes this tool so likable is the business-friendly approach. Tools like Diffbot are perfect for searching through competitors work and the performance of your own webpage. Get product data from images, articles, discussions, web crawling tools and process websites. If you like how this sounds, see for yourself and sign up for their 14-day free trial.


2.Import.io

Import.io can help you easily get the information from the any source on the web. This tool can get your data in less than 30 seconds, depending on how complicated the data is and its structure in the website.  It can also be used for multiple URL scraping at once.

Here is one example: Which city of California based organizations try to hire the most through Linkedin? Check this list of jobs available in linkedin, download a csv file, sort from A to Z the cities and voila – San Francisco it is. Did you know that it’s for free?

3.Kimono

Kimono gives you easy access to APIs created for various web pages. No need to write any code or install any software to extract data. Simply paste the URL into the website or use a bookmark. Select how often you want the data to be collected and it saves it for you.

4.ScraperWiki

ScraperWiki gives you two choices – extract data from PDFs or build your own scraping tool in PHP, Ruby and Python language. It is meant for more experienced users and offers consulting (a paid service) if you need to learn some coding to get what you need. The first two PDF files are analyzed and reorganized for free, afterwards it’s a paid solution.

5.Grabz.it

Yes, Grabz.it does grab something. It takes information that is meaningful to you. The tool extracts data from the web, then converts videos into animated GIF that you can use on your website or application. This tool was made for those who code in ASP.NET, Java, JavaScript, Node.js, Perl, PHP, Python and Ruby languages.

6.Python

If programming is the language you love the most, then use Python to build your own scraping tool and get the data from a page you want to explore. It is particularly useful if the other tools don’t recognize the data you need.

If you haven’t used this tool before, follow this playlist of videos to learn how to use Python for web scraping:

If you want more tools, look into the Common Crawl organization. It is made for those who are interested in the data crawling world. Need a more specific tool? DMOZ and KDnuggets have lists of other tools for web data mining.

All of these tools extract information in spreadsheet formats and that is why this webinar about how to work with data in Excel can help you understand more about what to do if you desire  to supply the world with unique and beautifully data visualizations.



Source Url:-https://infogr.am/blog/six-tools-to-make-data-scraping-more-approachable/

Sunday, 11 June 2017

3 Advantages of Web Scraping for Your Enterprise

In today’s Internet-dominated world possessing the relevant information for your business is the key to success and prosperity. Harvested in a structural and organized manner, the information will help facilitate business processes in many ways, including, but not limited to, market research, competition analysis, network building, brand promotion and reputation tracking. More targeted information means a more successful business and with the widespread competition in place, the strive for better performances is crucial.

The results of data harvesting prove to be an invaluable assistance in the age when you have the need to be informed and if you want to stand your chance in the highly competitive modern markets. This is the reason why web data harvesting has long become an inevitable component of a successful enterprise and it is a highly useful tool in both kick-starting and maintaining a functioning business by providing relevant and accurate data when needed.

However good your product or service is, the simple truth is that no-one will buy it if they don't want it or believe that they don't need it. Moreover, you won't persuade anyone that they want or need to buy what you're offering unless you clearly understand what it is that your customers really want. This way, it is crucial to have an understanding of your customers’ preferences. Always remember - they are the kings of the market and they determine the demand. Having this in mind, you can use web data scraping to get the vital information and be able to make the crucial, game-changing decisions to make your enterprise the next big thing.

Enough about how awesome web scraping is in theory! Now, let’s zoom in on 3 specific and tangible advantages that it can provide for your business, helping You benefit from them.

1. Provision of huge amounts of data

It won’t come as a surprise to anyone that there is an overflowing demand for new data for businesses across the globe. This happens because the competition increases day by day. Thus, the more information you have about your products, competitors, market etc. the better are your chances of expanding and persisting in the competitive business environment. This is a challenge but your enterprise is in luck because web scraping is specifically designed to collect the data which can be later used to analyse the market and make the necessary adjustments. But if you think that collecting data is as simple as it sounds and there is no sophistication involved in the process, think again: simply collecting data is not enough. The manner in which data extraction processes flow is also very important; as mere data collection itself is useless. The data needs to be organized and provided in a useable format to be accessible to wide masses. Good data management is key to efficiency. It’s instrumental to choose the right format, because its functions and capacities will determine the speed and productivity of your efforts, especially when you deal with large chunks of data. This is where excellent data scraping tools and services come in handy. They are widely available nowadays and are able to satisfy your company’s needs in a professional and timely manner.

2.  Market research and demand analyses

Trends and innovations allow you to see the general picture of your industry: how it’s faring today, what’s been trendy recently and which ones faded quickly. This way, you can avoid repeating mistakes of unsuccessful businesses, as well as, foresee how well yours will do, and possibly predict new trends.

Data extraction by web crawling will also provide you with up-to-date information about similar products or services in the market. Catalogues, web stores, results of promotional campaigns – all that data can be harvested. You need to know your competitors, if you want to be able to challenge their positions on the market and win over customers from them.

Furthermore, knowledge about various major and minor issues of your industry will help you in assessing the future demand of your product or service. More importantly, with the help of web scraping your company will remain alert for changes, adjustments and analyses of all aspects of your product or service.

3.  Business evaluation for intelligence

We cannot stress enough the importance of regularly analysing and evaluating your business. It is absolutely crucial for every business to have up-to-date information on how well they are doing and where they are amongst others in the market. For instance, if a competitor decides to lower the prices in order to grow their customer base you need to be prepared whether you can remain in the industry despite lowering prices. This can only be done with the help of data scraping services and tools.

Moreover, extracted data on reviews and recommendations from specific websites or social media portals will introduce you to the general opinion of the public. You can also use this technique to identify potential new customers and sway their opinions in your favor by creating targeted ads and campaigns.

To sum it up, it is undeniable that web scraping is a proven practice when it comes to maintaining a strong and competitive enterprise. Combining relevant information on your industry, competitors, partners and customers with thought-out business strategies and promotional campaigns, as well as, market research and business analyses will prove to be a solid way of establishing yourself in the market. Whether you own a startup or a successful company, keeping a finger on the pulse of the ever-evolving market will never hurt you. In fact, it might very well be the single most important advantage that will differentiate you from your competitors.

Source Url :- https://www.datahen.com/blog/3-advantages-of-web-scraping-for-your-enterprise

Saturday, 10 June 2017

Things to Consider when Evaluating Options for Web Data Extraction

Things to Consider when Evaluating Options for Web Data Extraction

Web data extraction possess tremendous applications in the business world. There are businesses that function solely based on data, others use it for business intelligence, competitor analysis and market research among other countless use cases. While everything is good with data, extracting massive data from the web is still a major roadblock for many companies, more so because they are not going through the optimal route. We decided to give you a detailed overview of different ways by which you can extract data from the web. This could help you make the final call while evaluating different options for web data extraction.

Different routes you can take to web data

Although different solutions exist for web data extraction, you should opt for the one that’s most suited for your requirement. These are the various options you can go with:

1. Build it in-house

2. DIY web scraping tool

3. Vertical-specific solution

4. Data-as-a-Service

1.   Build it in-house

If your company is technically rich, meaning you have a good technical team that can build and maintain a web scraping setup, it makes sense to build a crawler setup in-house. This option is more suitable for medium sized businesses with simpler requirements when it comes to data. However, building an in-house setup is not the biggest challenge- maintaining it is. Since web crawlers are really fragile and are vulnerable to the changes on target websites, you will have to dedicate time and labour into the maintenance of the in-house crawling setup.

Building your own in-house setup will not be easy if the number of websites you need to scrape are high or the websites aren’t using simple and traditional coding practices. If the target websites use complicated dynamic code, building your in-house setup becomes a bigger hurdle. This can hog your resources especially if extracting data from the web is not a competency of your business. Scaling up with your in-house crawling setup could also be a challenge as this would require high end resources, an extensive tech stack and a dedicated internal team. If your data needs are limited and the target websites simple, you can go ahead with an in-house crawling setup to cover your data needs.

Pros:

- Total ownership and control over the process
- Ideal for simpler requirements

2.   DIY scraping tools

If you don’t want to maintain a technical team that can build an in-house crawling setup and infrastructure, don’t worry. DIY scraping tools are exactly what you need. These tools usually require no technical knowledge as such and can be used by anyone who is good with the basics. They usually come with a visual interface where you can configure and deploy your web crawlers. The downside however, is that they are very limited in their capabilities and scale of operation. They are an ideal choice if you are just starting out with no budgets for data acquisition. DIY web scraping tools are usually priced very low and some are even free to use.

Maintenance would still be a challenge that you have to face with the DIY tools. As web crawlers are susceptible to becoming useless with minor changes in the target sites, you still have to maintain and adapt the tool from time to time. The good part is that it doesn’t require technically sound labour to handle them. Since the solution is readymade, you will also save the costs associated with building your own infrastructure for scraping.

With DIY tools, you will also be sacrificing on the data quality as these tools are not known for providing data in a ready to consume format. You will either have to employ an automated tool to check the data quality or do it manually. With these downsides apart, DIY tools can cater to simple and small scale data requirements. 

Pros:

- Full control over the process
- Prebuilt solution
- You can avail support for the tools
- Easier to configure and use

3.   Vertical-specific solution

You might be able find a data provider catering to only a specific industry vertical. If you could find one that has data for the industry that you are targeting, consider yourself lucky. Vertical specific data providers can give you data that is comprehensive in nature which improves the overall quality of the project. These solutions typically give you datasets that are already extracted and is ready to use.

The downside is the lack of customisation options. Since the provider is focusing on a specific industry vertical, their solution is less flexible to be altered depending on your specific requirements. They won’t let you add or remove data points and the data is given as is. It will be hard to find a vertical-specific solution that has data exactly the way you want. Another important thing to consider is that your competitors have access to the same data from these vertical-specific data providers. The data you get is hence less exclusive, but this may or may not be a deal breaker depending upon your requirement.

Pros:

- Comprehensive data from the industry
- Faster access to data
- No need to handle the complicated aspects of extraction

4.   Data as a service (DaaS)

Getting the required data from a DaaS provider is by far the best way to extract data from the web. With a data provider, you are completely relieved from the responsibility of crawler setup, maintenance and quality inspection of the data being extracted. Since these are companies specialised in data extraction with a pre-built infrastructure and dedicated team to handle it, they can provide this service to you at a much lower cost than what you’d incur with an in-house crawling setup.

In the case of a DaaS solution, all you have to do is provide them with your requirements like the data points, source websites, frequency of crawl, data format and the delivery methods. DaaS providers have high end infrastructure, resources and expert team to extract data from the web efficiently.

They will also have far superior knowledge in extracting data efficiently and at scale. With DaaS, you also have the comfort of getting data that’s free from noise and is formatted properly for compatibility. Since the data goes through quality inspections at their end, you can focus only on  applying data to your business. This can greatly reduce the workload on your data team and improve the efficiency.

Customisation and flexibility are other great advantages that come with a DaaS solution. Since these solutions are meant for the large enterprises, their offering is completely customisable for your exact requirements. If your requirement is large scale and recurring, it’s always best to go with a DaaS solution.

Pros:

- Completely customisable for your requirement
- Takes complete ownership of the process
- Quality checks to ensure high quality data
- Can handle dynamic and complicated websites
- More time to focus on your core business

Source:https://www.promptcloud.com/blog/choosing-a-data-extraction-service-provider

Monday, 5 June 2017

How Easily Can You Extract Data From Web

With tech advancements taking the entire world by a storm, every sector is undergoing massive transformations. As far as the business arena is concerned, the rise of big data and data analytics is playing a crucial part in operations. Big data and data analysis is the best way to identify customer interests. Businesses can gain crystal clear insights into consumers’ preferences, choices, and purchase behaviours, and that’s what leads to unmatched business success. So, it’s here that we come across a crucial question. How do enterprises and organisations leverage data to gain crucial insights into consumer preferences? Well, data extraction and mining are the two significant processes in this context. Let’s take a look at what data extraction means as a process.

Decoding data extraction
Businesses across the globe are trying their best to retrieve crucial data. But, what is it that’s helping them do that? It’s here that the concept of data extraction comes into the picture. Let’s begin with a functional definition of this concept. According to formal definitions, ‘data extraction’ refers to the retrieval of crucial information through crawling and indexing. The sources of this extraction are mostly poorly-structured or unstructured data sets. Data extraction can prove to be highly beneficial if done in the right way. With the increasing shift towards online operations, extracting data from the web has become highly important.

The emergence of ‘scraping’
The act of information or data retrieval gets a unique name, and that’s what we call ‘data scraping.’ You might have already decided to pull data from 3rd party websites. If that’s what it is, then it’s high time to embark on the project. Most of the extractors will begin by checking the presence of APIs. However, they might be unaware of a crucial and unique option in this context.

Automatic data support
Every website lends virtual support to a structured data source, and that too by default. You can pull out or retrieve highly relevant data directly from the HTML. The process is termed as ‘web scraping’ and can ensure numerous benefits for you. Let’s check out how web scraping is useful and awesome.

Any content you view is ready for scraping
All of us download various stuff throughout the day. Whether it is music, important documents or images, downloads seem to be regular affairs. When you are successful in downloading any particular content of a page, it means the website offers unrestricted access to your browser. It won’t take long for you to understand that the content is programmatically accessible too. On that note, it’s high time to work out effective reasons that define the importance of web scraping. Before opting for RSS feeds, APIs, or other conventional data extraction methods, you should assess the benefits of web scraping. Here’s what you need to know in this context.

Website vs. APIs: Who’s the winner?
Site owners are more concerned about their public-facing or official websites than the structured data feeds. APIs can change, and feeds can shift without prior notifications. The breakdown of Twitter’s developer ecosystem is a crucial example for this.

So, what are the reasons for this downfall?
At times, these errors are deliberate. However, the crucial reasons are something else. Most of the enterprises are completely unaware of their structured data and information. Even if the data gets damaged, altered, or mangled, there’s no one to care about it.
However, that isn’t what happens with the website. When an official website stops functioning or delivers poor performance, the consequences are direct and in-your-face. Quite naturally, developers and site owners decide to fix it almost instantaneously.

Zero-rate limiting
Rate-limiting doesn’t exist for public websites. Although it’s imperative to build defences against access automation, most of the enterprises don’t care to do that. It’s only done if there are captchas on signups. If you aren’t making repeated requests, there are no possibilities of you being considered as a DDOS attack.

In-your-face data
Web scraping is perhaps the best way to gain access to crucial data. The desired data sets are already there, and you won’t have to rely on APIs or other data sources for gaining access. All you need to do is browse the site and find out the most appropriate data. Identifying and figuring out the basic data patterns will help you to a great extent.
Unknown and Anonymous access

You might want to gather information or collect data secretly. Simply put, you might wish to keep the entire process highly confidential. APIs will demand registrations and give you a key, which is the most important part of sending requests. With HTTP requests, you can stay secure and keep the process confidential, as the only aspects exposed are your site cookies and IP address. These are some of the reasons explaining the benefits of web scraping. Once you are through with these points, it’s high time to master the art of scraping.
Getting started with data extraction

If you are already eager to grab data, it’s high time you work on the blueprints for the project. Surprised? Well, data scraping or rather web data scraping requires in-depth analysis along with a bit of upfront work. While documentations are available with APIs, that’s not the case with HTTP requests. Be patient and innovative, as that will help you throughout the project.

2. Data fetching

Begin the process by looking for the URL and knowing the endpoints. Here are some of the pointers worth considering:
- Organized information: You must have an idea of the kind of information you want. If you wish to have it in an organized manner, rely on the navigation offered by the site. Track the changes in the site URL while you click through sections and sub-sections.
- Search functionality: Websites with search functionality will make your job easier than ever. You can keep on typing some of the useful terms or keywords based on your search. While doing so, keep track of URL changes.
- Removing unnecessary parameters: When it comes to looking for crucial information, the GET parameter plays a vital role. Try looking for unnecessary and undesired GET parameters in the URL, and removing them from the URL. Keep the ones that’ll help you load the data.
2. Pagination comes next

While looking for data, you might have to scroll down and move to subsequent pages. Once you click to Page 2, ‘offset=parameter’ gets added to the selected URL. Now, what is this function all about? The ‘offset=parameter’ function can represent either the number of features on the page or the page-numbering itself. The function will help you perform multiple iterations until you attain the “end of data” status.

Trying out AJAX
Most of the people nurture certain misconceptions about data scraping. While they think that AJAX makes their job tougher than ever, it’s actually the opposite. Sites utilising AJAX for data-loading ensures smooth data scraping. The time isn’t far away when AJAX will return along with JavaScript. Pulling up the ‘Network’ tab in Firebug or Web Inspector will be the best thing to do in this context. With these tips in mind, you will have the opportunity to get crucial data or information from the server. You need to extract the information and get it out of the page markup, which is the most difficult or tricky part of the process.

Unstructured data issues
When it comes to dealing with unstructured data, you will need to keep certain crucial aspects in mind. As stated earlier, pulling out the data from page markups is a highly critical task. Here’s how you can do it:
1. Utilising the CSS hooks
According to numerous web designers, the CSS hooks happen to be the best resources for puling data. Since it doesn’t involve numerous classes, CSS hooks offer straightforward data scraping.
2. Good HTML Parsing
Having a good HTML library will help you in ways more than one. With the help of a functional and dynamic HTML parsing library, you can create several iterations as and when you wish to.

Knowing the loopholes
Web scraping won’t be an easy affair. However, it won’t be a hard nut to crack either. While knowing the crucial web scraping tips is necessary, it’s also imperative to get an idea of the traps. If you have been thinking about it, we have something for you!
- Login contents: Contents that require you to login might prove to be potential traps. It reveals your identity and wreaks havoc on your project’s confidentiality.
- Rate limiting: Rate limiting can affect your scraping needs both positively and negatively, and that entirely depends on the application you are working on.
Parting thoughts

Extracting data the right way will be critical to the success of your business venture. With traditional data extraction methods failing to offer desired experiences, web designers and developers are embracing web scraping services. With these essential tips and tricks, you will surely gain data insights with perfect web scraping.

Source Url:- https://www.promptcloud.com/blog/how-easy-is-data-extraction

Wednesday, 31 May 2017

How Commercial Web Data Extraction Services Help Enterprise Growth

How Commercial Web Data Extraction Services Help Enterprise Growth

While the Internet is an ocean of information, it is important for businesses to access this data the smart way for their success in today’s world of cut-throat competition. However, the data on the web may not be open for all. Most sites do not provide an option of saving the data that’s displayed. This is precisely where web scraping services comes into the picture. There are endless applications of web scraping for business requirements. Web scraping provides value addition to multiple industry verticals in a multitude of ways:

Check out some of these scenarios.

Value proposition of web scraping for different industries

1. Collecting data from various sources to do analysis

There may be a need to analyze and gather data for a particular domain from several websites. This domain can be marketing, finance, industrial equipment, electronic gadgets, automobiles or real estate. Different websites belonging to different niches show information in diverse formats. It is also possible that you may not see the entire data at once in a single portal. The data could be distributed across many pages such as in results of a Google search under different sections. It is possible to extract data via a web scraper from various websites into a single database or spreadsheet. Thus, it becomes convenient for you to visualize or analyze the extracted data.

2. For research purpose

For any research, data is an important part, be it for scientific, marketing or for academic purpose. Web scrapers can help you to collect structured data from various sources on the net with great comfort.

3. For price comparison, market analysis, E-commerce or business

Businesses that cater to services or products for a particular domain must have detailed data of similar services or items that come to the market on a daily basis. Software for web scraping is useful to ensure a constant vigil on the data. All the necessary information can be accessible from various sources by only clicking a few buttons.

4. To track online presence

This is a key aspect of the web scraping where reviews and business profiles on the portals can be easily tracked. The information can then be used to assess the reaction of customers, user behavior, and the product performance. The crawlers can also check and list several thousands of user reviews and user profiles that are quite handy for business analytics.

5. Managing online reputation

It is a digital world today and more and more organizations are showing their keenness to spend resources on managing online reputation. So, web scraping is a necessary tool here too. While the management prepares its ORM strategy, the extracted data helps it to understand the target audiences to be reached and which areas could be vulnerable for the brand’s reputation. Web crawling can reveal important demographic data like the sentiment, GEO location, age group and gender in the text. When you have a proper understanding of these vulnerable areas, you can take leverage out of them.

6. Better targeted advertisements can be provided to the customers

Web scraping tools will not only give you figures but will also provide you with behavioral analytics and sentiments. So, you are aware of the types of audiences and the kinds of advertisements they would prefer to watch.

7. To collect opinion from public

Web scraping helps you to monitor particular organizational web pages from different social networks to collect updates on the views of the people on specific companies as well as their products. Collecting data is extremely important for the growth of any product.

8. Results of search engines can be scraped to track SEO

When the organic search results are scraped, it is easier to track your SEO rivals for a certain search term. It helps you to determine the keywords and the title tags that are being targeted by your competitors. Eventually, you have an idea of the keywords that are bringing in more web traffic to your website, the kind of contents, which are more appealing to the online users and the links that are attracting them. You also get to know the type of resources that will help to get your site a higher rank in the search results.

Source:https://www.promptcloud.com/blog/commercial-web-data-extraction-services-enterprise-growth   

Wednesday, 24 May 2017

Screen Scraping - An Affordable Service for the Extraction of Data from Website

Screen Scraping - An Affordable Service for the Extraction of Data from Website

Want to get a data scraped from a website? If you say yes then it is not a tedious task at all if you take the benefit of screen scraping technology. Today, in this modern world getting information about a person living in another area or extracting data from websites is just like a free ride. Web screen scraping services could make data scraping a breeze for you.

For a layman, 'screen scraping' might sound technical. To put it in simple terms, it is a program or software that is designed to extract more than simple data. This unique programmed code drags complex data, large files, information, images from websites and this feature makes it altogether different from simple data mining. Sometimes, the contact details and addresses of many internet users prove to be valuable for websites in terms of business approach. Instead of waiting to get the information, website owners use this simple software and extract information of innumerable internet users. The process is extremely simple and easy and takes no time to present the data in the desired format you desire.

Furthermore, screen scraping is not just limited to extraction of data. It plays a pivotal role in submitting, filing web forms, monitoring social media, digging products from suppliers, archiving online data and more. More often, filing web forms becomes a daunting affair. With this perfect programming, the work becomes simple and hassle free. Furthermore, with this process, simplifying data extraction becomes stress free and more users friendly. It works more like a wonder in accomplishing the laborious and time consuming job in short span of time.

Website scraping is a program and hence it is developed. There are team of professionals who have possess deep knowledge and at the same time have mastered the art of designing this software that works miraculously in loading data from numerous websites. When in need, you can contact such team or group to get this software designed for you. There are many online firms that provide the excellent web scraping services. Sitting within the comforts of your home, you can get the program made in no time. Explore different websites, select one, contact their experts and avail their services. It also saves your time and much of your stress as well.

Furthermore, it is a paid service and hence you have to pay a price to get the work done. However, do not worry; it would not cost you a fortune. Another added advantage of this service is that it produces data within a short span of time.

So, hire a scraping expert and get the data extracted in no time.

Source:http://www.sooperarticles.com/technology-articles/software-articles/screen-scraping-affordable-service-extraction-data-website-1246794.html#ixzz4hnCX4qpc

Thursday, 18 May 2017

Get Scraping Success with Proxy Data Scraping

Get Scraping Success with Proxy Data Scraping

Have you ever heard of "data scraping? Data Scraping is the process of gathering relevant information in the public domain on the internet (private areas even if the conditions are met) and stored in databases or spreadsheets for later use in various applications. Scraping data technology is not new and a successful businessman his fortune by using data scraping technology.

Sometimes owners of sites that are not derived much pleasure from the automated harvesting of their data. Webmasters have learned to deny access to web scrapers their websites using tools or methods that some IP addresses to block the content of the site here. scrapers data is left to either target a different site, or the script to move the harvest of a computer using a different IP address each time and get as much information as possible to "all computers finally blocked the nozzle.

Fortunately, there is a modern solution to this problem. Proxy data scraping technology solves the problem by using a proxy IP addresses. When your data scraping program performs an extraction of a website, the site thinks that it comes from a different IP address. For site owner, proxies just like scratching a short period of increased traffic around the world. They have very limited resources and tedious to block such a scenario, but more importantly - for the most part, they simply do not know they are scraped.

Now you can ask. "Where can I proxy data scraping technology for my project" The "do-it-yourself solution is free, unfortunately, not easy at all Creation of a database scraping proxy network takes time and requires you to either a group of IP addresses and servers can be used in place yet, the computer guru you need to get everything configured correctly mention. You may consider hiring proxy servers hosting providers to select, but this option is usually quite expensive, but probably better than the alternative: dangerous and unreliable servers (but free) public proxy.

There are literally thousands of free proxy servers located all over the world are fairly easy to use. The trick is to find them. Hundreds of sites, list servers, but by placing a functioning, open and supports standard protocols that you need to a lesson in perseverance, trial and error will be. However, if you manage to find a working public representatives, there are dangers inherent in their use. First, you do not know who owns the server or activities taking place elsewhere on the server. Send applications or sensitive data via an open proxy is a bad idea. It's easy enough for a proxy server to keep all information you send or send it back to you to catch. If you choose the method of replacing the public, make sure you never a transaction through which you or anyone else would jeopardize the case of unsavory types are made aware of the data to send.

A less risky scenario for data scraping proxy is to hire a proxy connection that runs through the rotation of a large number of private IP addresses. There are a number of these companies available that claim to remove all Web logs, which you harvest anonymously on the web with a minimal threat of retaliation.

The other advantage is that companies that own such networks can often help design and implement a set of proxy data scraping custom program instead of trying to work with a generic bone scraping. After performing a simple Google search, I quickly found a company (http://www.emailscrapingservices.com/) that an anonymous proxy server provides for data scraping purposes. Or, according to their website, if you want to make life even easier, scrap goat can retrieve data for you and a variety of different formats to deliver, often before you could finish up your plate from the scraping program.

Whatever path you choose for your data scraping proxy need not let a few simple tips to thwart access to all the wonderful information that is stored on the World Wide Web!

Source:http://www.sooperarticles.com/business-articles/small-business-articles/get-scraping-success-proxy-data-scraping-259649.html#ixzz4hDqAAayx

Saturday, 13 May 2017

Web Data Extraction, What is a Web Data Extraction Service

Web Data Extraction, What is a Web Data Extraction Service

Internet as we know today that geographic information can be reached through the store. In just two decades, a web request from the university basic research, marketing and communication medium that most people around the world impinge on everyday life has moved. The world population of more than 233 countries covering over 16% is reached by.

As the amount of information on the Web, information is sometimes difficult to follow and use. The thing is that complex web pages, each with its own independent structure and presentation of information spread across billions of dollars. If you are looking for information in a useful format, how to find - and without breaking the bank to quickly and easily?

The search is not enough

Search engines are a great help, but they may work only part, and they are struggling to monitor daily. For all the power of Google and its relatives, it can all search engines to find information and talk. Only two or three deep in a website URL to get information, then return levels. Search engines, deep Web, information that some sort of registration form and entry is only available after completing the information retrieved, and can be stored in a format desirable. For information in a format desirable or a particular application, use search engines to locate information, you still need the following information is to capture measures to protect:

• Until you learn to crawl content. °(usually by highlighting with a mouse) Mark information.
• To another application (like a spreadsheet, database or word processor) that.
• Stick the information in the application.

Not all copy and paste

There is an alternative to copy and paste?

Companies or market competition on the Internet on a broadband data to exploit, especially for a better solution, custom software and web harvesting tools for use with.

Web harvesting software automatically extracts information from the web and picks up where search engines leave off work, are search engines can not. Extraction equipment to read, copy and paste to gather information for later use automatically. Site and collect data with software in a way that mimics human contact is to browse the site. Web harvesting software only to find, filter, and greater speed of copying data that is humanly possible to use the site. Able to upgrade the software to browse the site and use data without leaving a trace gather silence.

Books and magazines are generally the overhead scanners which are in force, using scanned pages of high quality cameras that take high quality photos. This is especially useful for old and rare books as there are already less likely to be critical on a page, scanner, high intensity damage. Then there is usually a manual process and may take longer.
With the new innovations of all time, companies are scanning documents always do their best to expedite the production time and thus reduce costs and better results will improve. There's nothing to scan documents in bulk using a professional company for several hours and you'll save yourself the cost of course the end result will be important work to improve the functioning of your business better than could have.

Source:https://www.isnare.com/?aid=842804&ca=Internet

Monday, 1 May 2017

Effective tips to extract data from website!

Effective tips to extract data from website!

Every day, a number of websites are being launched as a result of the development of internet technology. These websites are offering comprehensive information on different sectors or topics, these days. Apart from it, these websites are helping people in different manners too. In present scenario, there are a number of people using internet to fulfill their different purposes. The best thing about these websites is that these help people to get the exact information they are looking out for their specific purpose or requirement. In the past, people usually had to visit a number of websites when it comes to downloading information from internet. People had to do lots of manual work. If you are willing to extract data from website and that too without putting much efforts as well as spending precious time on it then it would be really good for you to go with data scrapping tools to fulfill your purpose in a perfect manner.

Even though, the data on the websites is available on the same format but it is presented in different styles and formations. Gathering data from websites not only requires so much manual work and one has to spend lots of time in it. To get rid of all these problems, one should consider the importance of using data scrapping tools. Getting data scrapping tools is not a matter of concern as these are easily available over the web, these days. The best thing about these tools is that these are also available with no cost. There are some companies offering these tools for trial period. In case, you are interested to purchase a full version of these tools then it will require some money to get it. At present, there are a sheer number of people non-familiars with the web data scraping tools.

Generally, people think that mining means just taking out wealth from the earth. However today, with the fast increasing internet technology terms, the new extracted source is data. Currently, there are a number of data extracting software available over the web. These are the software that can help people effectively in terms of extracting data from different websites. Majority of companies are now dealing with numerous data managing and converting data into useful form which is really a great help for people, these days. So, what are you waiting for? Extract data from website effectively with the support of web data scrapping tool!

Source:http://www.amazines.com/article_detail.cfm/6085814?articleid=6085814

Thursday, 20 April 2017

Web scraping Services | Email Scraping Services | Data mining Services

Web scraping Services | Email Scraping Services | Data mining Services

Web scraping (web harvesting or web data extraction) is a computer software technique of extracting information from websites. Usually, such software programs simulate human exploration of the World Wide Web by either implementing low-level Hypertext Transfer Protocol (HTTP), or embedding a fully-fledged web browser, such as Internet Explorer or Mozilla Firefox.

Web scraping is closely related to web indexing, which indexes information on the web using a bot or web crawler and is a universal technique adopted by most search engines. In contrast, web scraping focuses more on the transformation of unstructured data on the web, typically in HTML format, into structured data that can be stored and analyzed in a central local database or spreadsheet. Web scraping is also related to web automation, which simulates human browsing using computer software. Uses of web scraping include online price comparison, contact scraping, weather data monitoring, website change detection, research, web mashup and web data integration.

Techniques

Web scraping is the process of automatically collecting information from the World Wide Web. It is a field with active developments sharing a common goal with the semantic web vision, an ambitious initiative that still requires breakthroughs in text processing, semantic understanding, artificial intelligence and human-computer interactions. Current web scraping solutions range from the ad-hoc, requiring human effort, to fully automated systems that are able to convert entire web sites into structured information, with limitations.

1.
Human copy-and-paste: Sometimes even the best web-scraping technology cannot replace a human’s manual examination and copy-and-paste, and sometimes this may be the only workable solution when the websites for scraping explicitly set up barriers to prevent machine automation.

2.
Text grepping and regular expression matching: A simple yet powerful approach to extract information from web pages can be based on the UNIX grep command or regular expression-matching facilities of programming languages (for instance Perl or Python).

3.
HTTP programming: Static and dynamic web pages can be retrieved by posting HTTP requests to the remote web server using socket programming.

4.
HTML parsers: Many websites have large collections of pages generated dynamically from an underlying structured source like a database. Data of the same category are typically encoded into similar pages by a common script or template. In data mining, a program that detects such templates in a particular information source, extracts its content and translates it into a relational form, is called a wrapper. Wrapper generation algorithms assume that input pages of a wrapper induction system conform to a common template and that they can be easily identified in terms of a URL common scheme. Moreover, some semi-structured data query languages, such as XQuery and the HTQL, can be used to parse HTML pages and to retrieve and transform page content.

5.
DOM parsing: By embedding a full-fledged web browser, such as the Internet Explorer or the Mozilla browser control, programs can retrieve the dynamic content generated by client-side scripts. These browser controls also parse web pages into a DOM tree, based on which programs can retrieve parts of the pages.

6.
Web-scraping software: There are many software tools available that can be used to customize web-scraping solutions. This software may attempt to automatically recognize the data structure of a page or provide a recording interface that removes the necessity to manually write web-scraping code, or some scripting functions that can be used to extract and transform content, and database interfaces that can store the scraped data in local databases.

7.
Vertical aggregation platforms: There are several companies that have developed vertical specific harvesting platforms. These platforms create and monitor a multitude of “bots” for specific verticals with no "man in the loop" (no direct human involvement), and no work related to a specific target site. The preparation involves establishing the knowledge base for the entire vertical and then the platform creates the bots automatically. The platform's robustness is measured by the quality of the information it retrieves (usually number of fields) and its scalability (how quick it can scale up to hundreds or thousands of sites). This scalability is mostly used to target the Long Tail of sites that common aggregators find complicated or too labor-intensive to harvest content from.

8.
Semantic annotation recognizing: The pages being scraped may embrace metadata or semantic markups and annotations, which can be used to locate specific data snippets. If the annotations are embedded in the pages, as Microformat does, this technique can be viewed as a special case of DOM parsing. In another case, the annotations, organized into a semantic layer, are stored and managed separately from the web pages, so the scrapers can retrieve data schema and instructions from this layer before scraping the pages.

9.
Computer vision web-page analyzers: There are efforts using machine learning and computer vision that attempt to identify and extract information from web pages by interpreting pages visually as a human being might

Source:http://research.omicsgroup.org/index.php/Data_scraping

Wednesday, 12 April 2017

Three Common Methods For Web Data Extraction

Three Common Methods For Web Data Extraction

Probably the most common technique used traditionally to extract data from web pages this is to cook up some regular expressions that match the pieces you want (e.g., URL's and link titles). Our screen-scraper software actually started out as an application written in Perl for this very reason. In addition to regular expressions, you might also use some code written in something like Java or Active Server Pages to parse out larger chunks of text. Using raw regular expressions to pull out the data can be a little intimidating to the uninitiated, and can get a bit messy when a script contains a lot of them. At the same time, if you're already familiar with regular expressions, and your scraping project is relatively small, they can be a great solution.

Other techniques for getting the data out can get very sophisticated as algorithms that make use of artificial intelligence and such are applied to the page. Some programs will actually analyze the semantic content of an HTML page, then intelligently pull out the pieces that are of interest. Still other approaches deal with developing "ontologies", or hierarchical vocabularies intended to represent the content domain.

There are a number of companies (including our own) that offer commercial applications specifically intended to do screen-scraping. The applications vary quite a bit, but for medium to large-sized projects they're often a good solution. Each one will have its own learning curve, so you should plan on taking time to learn the ins and outs of a new application. Especially if you plan on doing a fair amount of screen-scraping it's probably a good idea to at least shop around for a screen-scraping application, as it will likely save you time and money in the long run.

So what's the best approach to data extraction? It really depends on what your needs are, and what resources you have at your disposal. Here are some of the pros and cons of the various approaches, as well as suggestions on when you might use each one:

Raw regular expressions and code

Advantages:

- If you're already familiar with regular expressions and at least one programming language, this can be a quick solution.
- Regular expressions allow for a fair amount of "fuzziness" in the matching such that minor changes to the content won't break them.
- You likely don't need to learn any new languages or tools (again, assuming you're already familiar with regular expressions and a programming language).
- Regular expressions are supported in almost all modern programming languages. Heck, even VBScript has a regular expression engine. It's also nice because the various regular expression implementations don't vary too significantly in their syntax.

Ontologies and artificial intelligence

Advantages:

- You create it once and it can more or less extract the data from any page within the content domain you're targeting.
- The data model is generally built in. For example, if you're extracting data about cars from web sites the extraction engine already knows what the make, model, and price are, so it can easily map them to existing data structures (e.g., insert the data into the correct locations in your database).
- There is relatively little long-term maintenance required. As web sites change you likely will need to do very little to your extraction engine in order to account for the changes.

Screen-scraping software

Advantages:

- Abstracts most of the complicated stuff away. You can do some pretty sophisticated things in most screen-scraping applications without knowing anything about regular expressions, HTTP, or cookies.
- Dramatically reduces the amount of time required to set up a site to be scraped. Once you learn a particular screen-scraping application the amount of time it requires to scrape sites vs. other methods is significantly lowered.
- Support from a commercial company. If you run into trouble while using a commercial screen-scraping application, chances are there are support forums and help lines where you can get assistance.

Source:http://ezinearticles.com/?Three-Common-Methods-For-Web-Data-Extraction&id=165416

Monday, 10 April 2017

Scrape Data from Website is a Proven Way to Boost Business Profits

Data scraping is not a new technology in market. Several business persons use this method to get benefited from it and to make good fortune. It is the procedure of gathering worthwhile data that has been located in the public domain of the internet and keeping it in records or databases for future usage in innumerable applications.

There is a large amount of data available only through websites. However, as many people have found out, trying to copy data into a usable database or spreadsheet directly out of a website can be a tiring process. Manual copying and pasting of data from web pages is shear wastage of time and effort. To make this task easier there are a number of companies that offer commercial applications specifically intended to scrape data from website. They are proficient of navigating the web, evaluating the contents of a site, and then dragging data points and placing them into an organized, operational databank or worksheet.

Web scraping company

Every day, there are numerous websites that are hosting in internet. It is almost impossible to see all the websites in a single day. With this scraping tool, companies are able to view all the web pages in internet. If a business is using an extensive collection of applications, these scraping tools prove to be very useful.

It is most often done either to interface to a legacy system which has no other mechanism which is compatible with current hardware, or to interface to a third-party system which does not provide a more convenient API. In the second case, the operator of the third-party system will often see screen scraping as unwanted, due to reasons such as increased system load, the loss of advertisement revenue, or the loss of control of the information content.

Scrape data from website greatly helps in determining the modern market trends, customer behavior and the future trends and gathers relevant data that is immensely desirable for the business or personal use.


Source : http://www.botscraper.com/blog/Scrape-Data-from-Website-is-a-Proven-Way-to-Boost-Business-Profits

Wednesday, 5 April 2017

To Know Difference Of Data Mining And Web Screen Scraping

To Know Difference Of Data Mining And Web Screen Scraping

Screen scraping to find information, where data mining can analyze information possible. This is a great simplification, so I will work a bit.

World Fast Forward, screen scraping websites than ever refers to extract information. Computer programs "crawl" or "spider" through web sites, pulls the data. For many people the comparison shopping engine, archive web pages, or a spreadsheet for a text so that it can be filtered to analyze things like build to download.

Data mining, on the other hand, is defined by Wikipedia as "the practice of automatically search large stores of data for patterns. Other words, you already know, and you know about the useful things about care. Thus we have the right pages of text data mining, automated data collection, web data extraction, and the bloody website is preferred.

If your two-card Treasure popular poker forums and read to your poker "data mining" many of the technical discussion of the saw, and thought how it can help you win more money. In this article I will give you an introduction to poker data mining and clarify some common misconceptions.

Poker data mining is a process where you (I) is a poker hand histories ("Data") collected in the game without taking part yourself. After the collected hand, you Holder Manager, your opponents to play in a program like Advanced Statistics can import. Normally determine the player playing style.

In addition, many people enjoy watching the high stakes games and save your favorite poker professionals with the hand history. For a special "hand grabber" data mine the program. A hand grabber a small program that runs in the background and the “clock” poker table for your computer, and protects them from the hand history, if any are found.

Invisible Shield as hard and strong that even if you have a knife to try and cut on the screen, you will surely fail. For an expensive mobile phone, screen protector because of your unfailing security forces has the best security. Transparent cover can hardly be seen because it is very thin. But this does not mean that it is not difficult if the scratches and resists any form.

In fact, invisible shield, even if you close your eyes, hold the phone, you can hardly see. Degree of protection as their heavy armor, although seem thin and irrelevant. Invisible Shield is just a shell for the phone, the phone is not interrupted. If you have a cable that you connect to the touch screen as before to use.

It is possible for you to buy full body armor kit, which is a security for the phone. Screen coverage is absolutely necessary, and the slope of the touch screen can also be purchased. But for the kit to buy the entire cover of the phone because it marks or scratches from all sides to protect the whole phone is recommended.

Source:http://www.selfgrowth.com/articles/to-know-difference-of-data-mining-and-web-screen-scraping

Thursday, 30 March 2017

Data Extraction Product vs Web Scraping Service which is best?

Product v/s Service: Which one is the real deal?

With analytics and especially market analytics gaining importance through the years, premier institutions in India have started offering market analytics as a certified course. Quite obviously, the global business market has a huge appetite for information analytics and big data.

While there may be a plethora of agents offering data extraction and management services, the industry is struggling to go beyond superficial and generic data-dump creation services. Enterprises today need more intelligent and insightful information.

The main concern with product-based models would be their incapability to extract and generate flexible and customizable data in terms of format. This shortcoming can be majorly attributed to the almost-mechanical process of the product- it works only within the limits and scope of the algorithm.

To place things into perspective, imagine you run an apparel enterprise. You receive two kinds of data files. One contains data about everything related to fashion- fashion magazines, famous fashion models, make-up brand searches, apparel brands trending and so on. On the other hand, the data is well segregated into trending apparel searches, apparel competitor strategies, fashion statements and so on. Which one would you prefer? Obviously, the second one- this is more relevant to you and will actually make life easier while drawing insights and taking strategic calls.


In the scenario where an enterprise wishes to cut down on overhead expenses and resources to clean the data and process it into meaningful information, that’s when the heads turn towards service-based web extraction. The service-based model of web extraction has customization and ready-to-consume data as its key distinction feature.

Web extraction, in process parlance is a service that dives deep into the world of internet and fishes out the most relevant data and activities. Imagine a junkyard being thoroughly excavated and carefully scraped to find you the exact nuts, bolts and spares you need to build the best mechanical project. This is metaphorically what web extraction offers as a service.

The entire excavation process is objective and algorithmically driven. The process is carried out with a final motive of extracting meaningful data and processing it into insightful information. Though the algorithmic process leads to a major drawback of duplication, unlike a web extractor (product), wweb extraction as a service entails a de-duplication process to ensure that you are not loaded with redundant and junk data.

Of the most crucial factors, successive crawling is often ignored. Successive crawling refers to crawling certain web pages repetitively to fetch data. What makes this such a big deal? Unwelcomed successive crawling can lead to attracting the wrath of the site owners and the high probability of being sued for a class action suit.

While this is a very crucial concern with web scraping products , web extraction as a service takes care of all the internet ethics and code of conduct while respecting the politeness policies of web pages and permissible penetration depth limits.

Botscraper ensures that if a process is to be done, it might as well be done in a very legal and ethical manner. Botscraper uses world class technology to ensure that all web extraction processes are conducted with maximum efficacy while playing by the rules.

An important feature of the service model of web extraction is its capability to deal with complex site structures and focused extraction from multiple platforms. Web scraping as a service requires adhering to various fine-tuning processes. This is exactly what botscraper offers along with a highly competitive price structure and a high class of data quality.

While many product-based models tend to overlook the legal aspects of web extraction, data extraction from the web as a service covers it much more ingeniously. While associating with botscraper as web scraping service provider, legal problems should be the least of your worries.

Botscraper as a company and technology ensures that all politeness protocol, penetration limits, robots.txt and even the informal code of ethics is considered while extracting the most relevant data with high efficiency.  Plagiarism and copyright concerns are dealt with utmost care and diligence at Botscraper.

The key takeaway would be that, product-based web extraction models may look appealing from a cost perspective- that too only at the face of it, but web extraction as a service is what will fetch maximum value to your analytical needs. Ranging right from flexibility, customization to legal coverage, web extraction services score above web extraction product and among the web extraction service provider fraternity, botscraper is definitely the preferred choice.


Source: http://www.botscraper.com/blog/Data-Extraction-Product-vs-Web-Scraping-Service-which-is-best-

Tuesday, 28 March 2017

By Data Scraping Services Are Important Tools Of Business

By Data Scraping Services Are Important Tools Of Business

Studies and market research on any company or organization plays an important role in strategic decision-making process. Data mining and web scraping techniques are important tools that the relevant information and to find information about your personal or business use. Many companies, self-employed, copy and paste the information into the website. This process is very reliable, but very expensive as it is a waste of time and effort to get results. This is due to the fact that information is collected and used less resources and time to collect these data will be compared.

Nowadays many data mining companies and their websites effective web scraping technique that precisely thousands of pages of information about the development of the crop can crawl. Criminal records CSV, database, XML file, or other source with a form. correlations and patterns in data, so that policies can be designed to help decision-making. Data can also be stored for later use.

The following are some common example of data extraction:

In order to scrap the government through the portal, citizens who are reliable given the study name to remove. Competitive pricing and product attribute data scraping websites You can open a web site or a web design office image upload videos and photos of scraping

Automatic data collection Regularly collects information. market it is possible to understand the customer's behavior and predict the likelihood of content changes.

The following are examples of automatic data collection:

Hourly monitoring of special shares
collects mortgage rates on a daily basis by various financial institutions
regularly need to check the weather report

By using web scraping services, it is possible to extract information related to your business. Since then analyzed the data to a spreadsheet or database can be downloaded and compared. Information storage database, or in the required format and interpretation of the correlations to understand and easier to identify hidden patterns.

Data mining services, it is possible pricing, shipping, database, your profile information and competitors' access to information.
Some of the challenges would be:

Web masters must change their website to be more user-friendly and better looking, in turn, violates the delicate scraper data extraction logic.

Block IP addresses: If you constantly keep your office scraping the site, IP "guard" From day one has been blocked.

Ellet not an expert in programming, you cannot receive data.

society abundant resources, the users of the service, which continues to operate them fresh data is transferred.

Source:http://www.selfgrowth.com/articles/by-data-scraping-services-are-important-tools-of-business

Monday, 20 March 2017

Web Data Extraction

Web Data Extraction

The Internet as we know today is a repository of information that can be accessed across geographical societies. In just over two decades, the Web has moved from a university curiosity to a fundamental research, marketing and communications vehicle that impinges upon the everyday life of most people in all over the world. It is accessed by over 16% of the population of the world spanning over 233 countries.

As the amount of information on the Web grows, that information becomes ever harder to keep track of and use. Compounding the matter is this information is spread over billions of Web pages, each with its own independent structure and format. So how do you find the information you're looking for in a useful format - and do it quickly and easily without breaking the bank?

Search Isn't Enough

Search engines are a big help, but they can do only part of the work, and they are hard-pressed to keep up with daily changes. For all the power of Google and its kin, all that search engines can do is locate information and point to it. They go only two or three levels deep into a Web site to find information and then return URLs. Search Engines cannot retrieve information from deep-web, information that is available only after filling in some sort of registration form and logging, and store it in a desirable format. In order to save the information in a desirable format or a particular application, after using the search engine to locate data, you still have to do the following tasks to capture the information you need:

· Scan the content until you find the information.

· Mark the information (usually by highlighting with a mouse).

· Switch to another application (such as a spreadsheet, database or word processor).

· Paste the information into that application.

Its not all copy and paste

Consider the scenario of a company is looking to build up an email marketing list of over 100,000 thousand names and email addresses from a public group. It will take up over 28 man-hours if the person manages to copy and paste the Name and Email in 1 second, translating to over $500 in wages only, not to mention the other costs associated with it. Time involved in copying a record is directly proportion to the number of fields of data that has to copy/pasted.

Is there any Alternative to copy-paste?

A better solution, especially for companies that are aiming to exploit a broad swath of data about markets or competitors available on the Internet, lies with usage of custom Web harvesting software and tools.

Web harvesting software automatically extracts information from the Web and picks up where search engines leave off, doing the work the search engine can't. Extraction tools automate the reading, the copying and pasting necessary to collect information for further use. The software mimics the human interaction with the website and gathers data in a manner as if the website is being browsed. Web Harvesting software only navigate the website to locate, filter and copy the required data at much higher speeds that is humanly possible. Advanced software even able to browse the website and gather data silently without leaving the footprints of access.

Source : http://ezinearticles.com/?Web-Data-Extraction&id=575212

Friday, 10 March 2017

What is Data Mining? Why Data Mining is Important?

What is Data Mining? Why Data Mining is Important?

Searching, Collecting, Filtering and Analyzing of data define as data mining. The large amount of information can be retrieved from wide range of form such as different data relationships, patterns or any significant statistical co-relations. Today the advent of computers, large databases and the internet is make easier way to collect millions, billions and even trillions of pieces of data that can be systematically analyzed to help look for relationships and to seek solutions to difficult problems.

The government, private company, large organization and all businesses are looking for large volume of information collection for research and business development. These all collected data can be stored by them to future use. Such kind of information is most important whenever it is require. It will take very much time for searching and find require information from the internet or any other resources.

Here is an overview of data mining services inclusion:

* Market research, product research, survey and analysis
* Collection information about investors, funds and investments
* Forums, blogs and other resources for customer views/opinions
* Scanning large volumes of data
* Information extraction
* Pre-processing of data from the data warehouse
* Meta data extraction
* Web data online mining services
* data online mining research
* Online newspaper and news sources information research
* Excel sheet presentation of data collected from online sources
* Competitor analysis
* data mining books
* Information interpretation
* Updating collected data

After applying the process of data mining, you can easily information extract from filtered information and processing the refining the information. This data process is mainly divided into 3 sections; pre-processing, mining and validation. In short, data online mining is a process of converting data into authentic information.

The most important is that it takes much time to find important information from the data. If you want to grow your business rapidly, you must take quick and accurate decisions to grab timely available opportunities.

Source: http://ezinearticles.com/?What-is-Data-Mining?-Why-Data-Mining-is-Important?&id=3613677

Thursday, 23 February 2017

Why is web scraping worldwide used

Why is web scraping worldwide used

Nowadays a huge amount of information is placed online, and alongside with it, appeared new techniques and software that analyse and extract it. Such a software technique is web scraping, which simulates human exploration of the World Wide Web. The software that does this either implements the low-level Hypertext Transfer Protocol or embeds a web browser. Its main goal is to automatically collect information from the World Wide Web. This process requires semantic understanding, text processing, artificial intelligence and a close interaction between human and computer. This technique is widely used by business owners that want to find new ways of increasing their profit and using the relevant marketing strategies.

Web scraping is important for successful businesses because it provides three categories of information: web content, web usage and web structure. This means that it extracts information from web pages, server logs, links between pages and people, and browser activity data. This helps companies having access to the needed data, because web scrapping services transform unstructured data into structured data. The direct result of this process is seen on the outcome of the businesses. Companies set up easy web scraping programs that have the purpose to provide reliable and efficient information for its users. These services make this process much easier. Because companies are the ones that focused their energy to implement such a program, they benefit from multiple advantages. The companies that want to have a close relation with their clients, have the opportunity to send notifications to their customers that include promotions, price changes, or the launching of a new product. When using web scraping, companies have the opportunity of comparing their product prices with the ones of the similar ones.

Web data extraction proves to be very useful when meteorologists want to monitor weather changes. The companies that use this type of information extraction have also other advantages alongside with the ones listed above. This process allows them to transform page contents according to their needs, and they can be sure that the data collected is reliable and accurate. They can retrieve the data from their websites, because this process can be used with both dynamic and static pages. Web data extraction is very valuable because it is able to recognize semantic annotation. The companies that need complicated data can get it by using web scraping, and this leads to minimizing costs and more sales. Companies choose to use marketing intelligence because it helps them increase their profit through good business practices. The companies that use these services are the ones that practice online shipping, because they want to provide their clients information about services, terms of services and products. Other type of businesses that uses this service are stores, which supply their products online. This service helps them provide information about their services and products, but if it is a more complex store, then it helps them offer their clients details about their procedures and head offices. Web scraping proves to be a successful way of achieving success in many domains.

Source: http://www.amazines.com/article_detail.cfm/6193234?articleid=6193234

Tuesday, 14 February 2017

Benefits of Predictive Analytics and Data Mining Services

Benefits of Predictive Analytics and Data Mining Services

Predictive Analytics is the process of dealing with variety of data and apply various mathematical formulas to discover the best decision for a given situation. Predictive analytics gives your company a competitive edge and can be used to improve ROI substantially. It is the decision science that removes guesswork out of the decision-making process and applies proven scientific guidelines to find right solution in the shortest time possible.

Predictive analytics can be helpful in answering questions like:

-  Who are most likely to respond to your offer?
-  Who are most likely to ignore?
-  Who are most likely to discontinue your service?
-  How much a consumer will spend on your product?
-  Which transaction is a fraud?
-  Which insurance claim is a fraudulent?
-  What resource should I dedicate at a given time?

Benefits of Data mining include:

-  Better understanding of customer behavior propels better decision
-  Profitable customers can be spotted fast and served accordingly
-  Generate more business by reaching hidden markets
-  Target your Marketing message more effectively
-  Helps in minimizing risk and improves ROI.
-  Improve profitability by detecting abnormal patterns in sales, claims, transactions etc
-  Improved customer service and confidence
-  Significant reduction in Direct Marketing expenses

Basic steps of Predictive Analytics are as follows:

-  Spot the business problem or goal
-  Explore various data sources such as transaction history, user demography, catalog details, etc)
-  Extract different data patterns from the above data
-  Build a sample model based on data & problem
-  Classify data, find valuable factors, generate new variables
-  Construct a Predictive model using sample
-  Validate and Deploy this Model

Standard techniques used for it are:

-  Decision Tree
-  Multi-purpose Scaling
-  Linear Regressions
-  Logistic Regressions
-  Factor Analytics
-  Genetic Algorithms
-  Cluster Analytics
-  Product Association

Source:http://ezinearticles.com/?Benefits-of-Predictive-Analytics-and-Data-Mining-Services&id=4766989