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

A guide to data scraping

Data is all the rage these days.

It’s what businesses are utilizing to create an unfair advantage with their customers. The more data you acquire, the easier it becomes to slice it up in a unique way to solve problems for your customers.

But knowing that data can benefit you – and actually getting the data – are two separate items.
Much like technology, data can catapult you to greater heights, or it can bring you to your knees.
That’s why it is essential to pay careful attention and ensure the data you use propels you forward versus holding you back.

Why all data isn’t created equal

The right data can make you a hero. It can keep you at the forefront of your industry, allowing you to use the insights the information uncovers to make better decisions.

Symphony Analytics uses a myriad of patient data from a variety of sources to develop predictive models, enabling them to tailor medication schedules for different patient populations.

Conversely, the wrong data can sink you. It can cause you to take courses of action that just aren’t right. And, if you take enough wrong action based upon wrong data, your credibility and reputation could suffer a blow that’s difficult to recover from.

For instance, one report from the state of California auditor’s office shows that accounting records were off by more than $6 million due to flawed data.

That’s no good. And totally avoidable.

As a result, it is critical you invest the energy in advance to ensure the data you source will make you shine, rather than shrink.
How to get good data

You’ve got to plan for it. You’ve got to be clear about your business objectives, and then you’ve got to find a way to source the information in a consistent and reliable manner.

If your business’ area of expertise is data capture and analysis, then gathering the information you need on your own could be a viable option.

But, if the strength of you and your team isn’t in this specialized area, then it’s best to leave it to the professionals.

That’s why brands performing market research on a larger scale often hire market research firms to administer the surveys, moderate focus groups or conduct one-on-one interviews.

Of late, more companies are turning to data scraping as a means to capture the quantitative information they need to fuel their businesses. And they frequently turn to third-party companies to supply them with the information they need.

While doing so allows them to focus on their core businesses, relinquishing control of a critical asset for their businesses can be a little nerve-racking.

But, it doesn’t have to be. That is if you work with the right data scraping partner.

How to choose the right data scraping partner for you
In the project management world, there’s a triangle that is often used to help prioritize what is most important to you when completing a task.

Data Scraping Group: Good, Fast, Cheap - Pick any two

Although you may want all three choices, you can only pick two.

If you want something done fast, and of good quality, know that it won’t be cheap. If you want it fast and cheap, be aware that you will sacrifice quality. And if you’d like it to be cheap and good, prepare to wait a bit, because speed is a characteristic that will fall off the table.

There are many 3rd party professionals who can offer data scraping services for you. As you begin to evaluate them, it will be helpful to keep this triangle in mind.
Here are six considerations when exploring a partner to work with to ensure you get high-quality
web crawling and data extraction.

1. How does the data fit into your business model?

This one is counter intuitive, but it’s a biggie. And, it plays a major role as you evaluate all the other considerations.

If the data you are receiving is critical to your operations, then obtaining high-quality information exactly when you need it is non-negotiable. Going back to the triangle, “good” has to be one of your two priorities.

For instance, if you’re a daily deal site, and you rely on a third party to provide you all the data for the deals, then having screw-ups with your records just can’t happen.
That would be like a hospital not staffing doctors for the night. It just doesn’t work.
But, if the data you need isn’t mission critical for you to run your business, you may have a little more leeway in terms of how you weight the other factors that go into choosing who best to work with.

2. Cost

A common method numerous businesses use to evaluate costs is just to evaluate vendors based on the prices they quote.

And, too often, companies let the price ranges of the service providers dictate how much they are willing to pay.

A smarter option is to determine your budget in advance … before you even go out to explore who can get you the data you need. Specifically, you should decide how much you are able and willing to pay for the information you want. Those are two different issues.
Most businesses don’t enjoy unlimited budgets. And, even when the information being sourced is critical to operating the business, there is still a ceiling for what you’re able to pay.
This will help you start operating from a position of strength, rather than reacting to the quotes you may receive.

Another thing to consider are the various types of fees. Some companies charge a setup fee, followed by a subsequent monthly fee. Others charge fixed costs. If you’re looking at multiple quotes from vendors, this could make it difficult for you to compare.
A wise way to approach this is to make sure you are clear on what the total cost would be for the project, for whatever specified time period you’d like to contract with someone.
Here are a few questions to ask to make sure you get a full view of the costs and fees in the estimate:

-Is there a setup fee?
-What are the fixed costs associated with this project?
-What are the variable costs, and how are they calculated?
-Are there any other taxes, fees, or things that I could be charged for that are not listed on this quote?
-What are the payment terms?

3. Communication

Even when you’ve got a foolproof system that runs like a well-oiled machine, you still need to interact with your vendors on a regular basis. Ongoing communication confirms things are operating the way you’d like, gives you an opportunity to discuss possible changes and ensures your partner has a firm understanding of your business needs.

The data you are sourcing is important to you and your business. You need to partner with someone who will be receptive to answering questions and responding in a timely manner to inquiries you have.

4. Reputation

This was mentioned before, but it’s worth repeating. All data is not created equal. And, if you are utilizing data as a means to build and grow your business, you need to make sure it’s good.

So, even though data scraping isn’t your area of expertise, it will greatly benefit you to spend time validating the reputation the people vying to deliver it to you.

How do they bake quality in their work? Do they have any certifications or other forms of proof to give you further confidence in their capabilities? Have their previous customers been pleased with the quality of the data they’ve delivered?

You could do so by checking reviews of previous customers to see how pleased they were and why. This method is also helpful because it may assist you in identifying other important criteria that may not have been on your radar.

You could also compare the credentials of each of the vendors, and the teams who will actually be working on your project.

Another highly-effective way could be to simply spend time talking to your potential partners and have them explain to you their processes. While you may not understand all the lingo, you could ask them a few questions about how they engage in quality control and see how they respond.

You’d probably be shocked at the range of answers you get.

Here are a few questions to guide you as you start asking questions about their quality system:

- Are the data spiders customized for the websites you want information from?
- What mechanisms are in place to verify the harvested data is correct?
- How is the performance of the data spiders monitored to verify they haven’t failed?
- How is the data backed up? Is redundancy built into the process so that information is not lost?
- Is internet access high-speed, and how frequently is it monitored?

5. Speed

For those suppliers that are able to deliver data to you fast, make sure you understand why they are able to deliver at such a rapid speed. Are there special systems they have in place that enable them to do so? Or perhaps, is there any level of quality that is sacrificed as a result of getting you information fast.

Often when contracting with a data extraction partner, they’ll deliver your information on a set schedule that you both agree upon.

But, there may be times when you need information outside of your normal schedule, and you may even need it on a brief timeline.

Knowing in advance how quickly your partner is able to turn around a request will help you better prepare project lead times.

6. Scalability

The needs of your business change over time. And, as you work to grow, it is quite possible the data needs of your company will expand as well.

So, it’s helpful to know your data scraping partner is able to grow with you. It would be great to know that as the volume, and perhaps the speed of the information you need to run your business increases, the company providing it is able to keep pace.

Don’t get stuck with bad data
It could spell disaster for your business. So, make sure you do your due diligence to fully vet the companies you’re considering sourcing your data from.
Make a list of requirements in advance and rank them, if necessary, in order of importance to you.
That way, as you begin to evaluate proposals and capabilities, you’ll be in a position to make an informed decision.
You need good data. Your customers need you to have good data, too.
Make sure you work with someone who can give it to you.

Source url :-http://www.data-scraping.com.au/techniques-for-high-quality-web-crawling-and-data-extraction

Web Scraping Techniques

Web Scraping Techniques

There can be various ways of accessing the web data. Some of the common techniques are using API, using the code to parse the web pages and browsing. The use of API is relevant if the site from where the data needs to be extracted supports such a system from before. Look at some of the common techniques of web scraping.

1. Text greping and regular expression matching

It is an easy technique and yet can be a powerful method of extracting information or data from the web. However, the web pages then need to be based on the grep utility of the UNIX operating system for matching regular expressions of the widely used programming languages. Python and Perl are some such programming languages.

2. HTTP programming

Often, it can be a big challenge to retrieve information from both static as well as dynamic web pages. However, it can be accomplished through sending your HTTP requests to a remote server through socket programming. By doing so, clients can be assured of getting accurate data, which can be a challenge otherwise.

3. HTML parsers

There are few data query languages in a semi-structured form that are capable of including HTQL and XQuery. These can be used to parse HTML web pages thus fetching and transforming the content of the web.

4. DOM Parsing

When you use web browsers like Mozilla or Internet Explorer, it is possible to retrieve contents of dynamic web pages generated by client scripting programs.

5. Reorganizing the semantic annotation

There are some web scraping services that can cater to web pages, which embrace metadata markup or semantic. These may be meant to track certain snippets. The web pages may embrace the annotations and can be also regarded as DOM parsing.
Setup or configuration needed to design a web crawler

The below-mentioned steps refer to the minimum configuration, which is required for designing a web scraping solution.

HTTP Fetcher– The fetcher extracts the web pages from the site servers targeted.

Dedup– Its job is to prevent extracting duplicate content from the web by making sure that the same text is not retrieved multiple times.

Extractor– This is a URL retrieval solution to fetch information from multiple external links.

URL Queue Manager– This queue manager puts the URLs in a queue and assigns a priority to the URLS that needs to be extracted and parsed.

Database– It is the place or the destination where data after being extracted by a web scraping tool is stored to process or analyze further.

Advantages of Data as a Service Providers

Outsourcing the data extraction process to a Data Services provider is the best option for businesses as it helps them focus on their core business functions. By relying on a data as a service provider, you are freed from the technically complicated tasks such as crawler setup, maintenance and quality check of the data. Since DaaS providers have expertise in extracting data and a pre-built infrastructure and team to take complete ownership of the process, the cost that you would incur will be significantly less than that of an in-house crawling setup.

Key advantages:

- 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/commercial-web-data-extraction-services-enterprise-growth

Benefits with Web Data Scraping Services

Web scraping in simple words is that you can extract data from any website and it is quite similar to web harvesting.

Online business has become so popular due to the increase in number of internet users. One of the main benefits of online business is that it is cheap and it is easily accessible. This has become very tough and a competitive field. Hence it is important that each should exhibit high performance in order to survive here. Today most of the online business depends on web data scraping for better performance.

The benefits with web data scraping services are:

•    An unstructured data can be transformed into suitable form and it can be stored as spreadsheet or as a database
•    It provides data which are informational
•    Some of the websites provide free access and hence you can save money
•    It helps to save time and energy. If it is done by manpower, it will take more time to do because they need to go through the websites and that can be time consuming.
•    The results provided are accurate. It will provide the exact result required instead of providing the related data.

With web scraping benefits you can scrape any kind of data without much trouble and can be delivered in whichever format you like MYSQL, EXCEL, CSV, XML etc. All you need to do is suggest the website from where you require the data.

So whether your business is big or small you can rely on these web scraping services for getting different types of data scraping. With web scraping you can even know the upcoming market and trends. You can even assume the strategies and plans of your competitor. This helps to take important decision at an appropriate time. This is an important step in any business whether it is big or small. Some of the companies even offer free trial service offer. You don’t need to make the payment in advance. When the work is done and if you are completely satisfied only then you need to do the payment.

Most of the companies use advanced data scraping tools and provides quality services. So you can be assured that the money you are paying is worthwhile. The information that you give to them will be kept strictly confidential. You can absolutely trust these companies for your business requirements.

To discuss web data scraping requirement, email at info@www.web-scraping-services.com.

Source Url :-http://3idatascraping.weebly.com/blog/benefits-with-web-data-scraping-services

4 Tools That Makes Web Data Extraction Easy

There is a huge amount of data available on the World Wide Web. Organizations and individuals find this information useful and often have to make use of it for various purposes. Traditionally, web data is retrieved by browsing and keyword searching. These methods are purely intuitive, the searches can return vast amount of unnecessary data, and it can take quite a bit of time before the searchers find what they are looking for. This data is sometimes hard to manipulate and work on as it is done in traditional databases.

But web pages written in mark-up languages like HTML and XHTML contain a wealth of knowledge. They also provide the structures that make data manipulation and analysis so easy. To extract this data some easily usable applications have been built. Though people who know nothing about coding can use some of these applications, it is always advisable to take the help of data extraction experts for help with such work, to obtain best results.

4  Tools to Improve your Web Data Extraction Efforts:

Uipath:

One of the popular web scraping applications is offered by the software automation and application integration company, Uipath. They offer free trials and also live demos for new users and potential customers. They offer website scraping from HTML, XML, AJAX, Java applets, Flash, Silverlight and PDF. Their application has powerful data transformation features and enables deduplication with SQL and LINQ queries.
Once the data has been extracted, it can be exported to various outputs like Microsoft Excel, CSV, .NET DataTable and so on. Automations can be done with web login, navigation, and even filling of forms.
This application is good for non-coders and can even be used to manipulate the interface of another application so that data transfer can take place between the two of them.
The price tag might be a tad high for individual users, but is worth it if you want a fast, accurate and simple application.

Import.io:

 Import.io offers to “instantly turn web pages into data”. They advertise their service saying that the customer does not need plugin, training or setup. Users can create custom APIs and crawl entire websites by using their desktop application. The best part is that no coding knowledge is required. Users can scrap data from an unlimited number of web pages. For the service, each page is a source that holds great potential to source application programming interface.
The extracted data is stored on Import.io’s cloud servers. It can then be downloaded in different formats that include CSV, Google sheets, Microsoft Excel and many more. The generated API enables users to integrate live web data with their own applications, third party analytics and visualization software without much difficulty. Though users do not need much technical skills to operate this service, the extraction reports arrives a good 24 hours after the request has been submitted.

Kimono:

The task of building an API to power applications, models and visualizations using live data and without the benefit of any code is done in seconds by Kimono. The service has a smart extractor. It recognizes patterns in web content. This enables the user to get the data that he or she wants, quickly and visually. The extracted APIs are hosted on a cloud. They are then run as per the schedule that is convenient for the user. While there is no problem with either the speed or the accuracy of Kimono, there is a lack of availability of page navigation, and the system requires some training before it begins to function at full capability.

Screen Scraper:

Like the other above-mentioned services, Screen Scraper works well with HTML and Javascript, extracts data precisely and provides the data in Excel and CSV fomat. However, it requires the user to have some coding skills. Only then can it be used to its optimum functionality. Even though the user will have to shell out a bit of money to use Screen Scraper, the service can handle almost any data extraction task with ease.

Source Url:-https://www.invensis.net/blog/data-processing/4-tools-makes-web-data-extraction-easy/

Primary Information of Online Web Research- Web Mining & Data Extraction Services

Primary Information of Online Web Research- Web Mining & Data Extraction Services

World Wide Web and search engine development and data at our disposal and the ever-growing pile of information provided abundant. Now this information for research and analysis has become a popular and important.

Today, Web search services are increasingly complex. Business Intelligence and web dialogue to give the desired result that the various factors involved.

Researchers from web data web search (keyword of the application) or using the navigation engine specific Web resources can get. However, these methods are not effective. Keyword search returns a large portion of irrelevant data. Since each web page includes many outgoing links to navigate because it is difficult to extract the data too.

Web mining, Web content extraction, mining and Web usage mining Web structure is classified. Mineral content search and retrieval of information on the Web focuses on. Mine use of the extract and analyze user behavior. Structure mining contracts with the structure of hyperlinks.

Web mining services can be divided into three sub-tasks:

Information (RI) Recovery: The purpose of this sub-task to automatically find all relevant information and filter out irrelevant. The so Google, Yahoo, MSN, and other resources to find information such uses various search engines.

Generalization: The purpose of this subtask interested users to explore clustering and association rules, is that the use of data mining methods. Since dynamic Web data are incorrect, it is difficult for the traditional techniques of data mining are applied directly to the raw data.

Data (DV) Verification: The first working with data provided by attempts to discover knowledge. The researchers tested different models, they can imitate and eventually Web information valid for stability.

Software tools for data retrieval for structured data that is used in the Internet. There are so many Internet search engines to help you find a website for a particular issue would have been. Various sites in the data appears in different styles. The expert scraped help you compare the different sites and structures to store data up to date.

And the web crawler software tool is used to index web pages in the Internet, the Internet will move data from your hard drive. With this work, you can browse the Internet much faster to connect. And use the device off-peak hours is important if you try to download data from the Internet. It will take considerable time to download. However, the device with faster Internet rate. There you can download all data from the businessman is another tool called email extractor. The balance sheet, you can easily target the e-mail clients. Every time your product can deliver targeted advertisements to customers. The customer database to find the best equipment.

Web data extraction tool for comparing data from different sites and have to get data from HTML pages. Every day, many sites are hosted on the Internet. It is possible the same day do not look at all the sites.

However, there are more scratch rights are available on the Internet. And some Web sites provide reliable information on these tools. By paying a nominal amount to download these tools.

Source:http://www.sooperarticles.com/business-articles/outsourcing-articles/primary-information-online-web-research-web-mining-38-data-extraction-services-497487.html#ixzz4iGc3oemP