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Source:http://your-story.org/choose-perfect-experienced-research-paper-writing-service-409372/

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.

Disadvantages:

- They can be complex for those that don't have a lot of experience with them. Learning regular expressions isn't like going from Perl to Java. It's more like going from Perl to XSLT, where you have to wrap your mind around a completely different way of viewing the problem.

- They're often confusing to analyze. Take a look through some of the regular expressions people have created to match something as simple as an email address and you'll see what I mean.

- If the content you're trying to match changes (e.g., they change the web page by adding a new "font" tag) you'll likely need to update your regular expressions to account for the change.

- The data discovery portion of the process (traversing various web pages to get to the page containing the data you want) will still need to be handled, and can get fairly complex if you need to deal with cookies and such.

When to use this approach: You'll most likely use straight regular expressions in screen-scraping when you have a small job you want to get done quickly. Especially if you already know regular expressions, there's no sense in getting into other tools if all you need to do is pull some news headlines off of a site.

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.

Disadvantages:

- It's relatively complex to create and work with such an engine. The level of expertise required to even understand an extraction engine that uses artificial intelligence and ontologies is much higher than what is required to deal with regular expressions.

- These types of engines are expensive to build. There are commercial offerings that will give you the basis for doing this type of data extraction, but you still need to configure them to work with the specific content domain you're targeting.

- You still have to deal with the data discovery portion of the process, which may not fit as well with this approach (meaning you may have to create an entirely separate engine to handle data discovery). Data discovery is the process of crawling web sites such that you arrive at the pages where you want to extract data.

When to use this approach: Typically you'll only get into ontologies and artificial intelligence when you're planning on extracting information from a very large number of sources. It also makes sense to do this when the data you're trying to extract is in a very unstructured format (e.g., newspaper classified ads). In cases where the data is very structured (meaning there are clear labels identifying the various data fields), it may make more sense to go with regular expressions or a screen-scraping application.

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.

Disadvantages:

- The learning curve. Each screen-scraping application has its own way of going about things. This may imply learning a new scripting language in addition to familiarizing yourself with how the core application works.

- A potential cost. Most ready-to-go screen-scraping applications are commercial, so you'll likely be paying in dollars as well as time for this solution.

- A proprietary approach. Any time you use a proprietary application to solve a computing problem (and proprietary is obviously a matter of degree) you're locking yourself into using that approach. This may or may not be a big deal, but you should at least consider how well the application you're using will integrate with other software applications you currently have. For example, once the screen-scraping application has extracted the data how easy is it for you to get to that data from your own code?

When to use this approach: Screen-scraping applications vary widely in their ease-of-use, price, and suitability to tackle a broad range of scenarios. Chances are, though, that if you don't mind paying a bit, you can save yourself a significant amount of time by using one. If you're doing a quick scrape of a single page you can use just about any language with regular expressions. If you want to extract data from hundreds of web sites that are all formatted differently you're probably better off investing in a complex system that uses ontologies and/or artificial intelligence. For just about everything else, though, you may want to consider investing in an application specifically designed for screen-scraping.

As an aside, I thought I should also mention a recent project we've been involved with that has actually required a hybrid approach of two of the aforementioned methods. We're currently working on a project that deals with extracting newspaper classified ads. The data in classifieds is about as unstructured as you can get. For example, in a real estate ad the term "number of bedrooms" can be written about 25 different ways. The data extraction portion of the process is one that lends itself well to an ontologies-based approach, which is what we've done. However, we still had to handle the data discovery portion. We decided to use screen-scraper for that, and it's handling it just great. The basic process is that screen-scraper traverses the various pages of the site, pulling out raw chunks of data that constitute the classified ads. These ads then get passed to code we've written that uses ontologies in order to extract out the individual pieces we're after. Once the data has been extracted we then insert it
into a database.

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

Top 20 Fundamentals of Great SEO Content Writing for 2014

S-E-O are three little letters that have caused a world of stress and confusion for many small business owners over the years. For those that don’t know, SEO stands for “search engine optimization” and refers to the process of properly directing search engine traffic to your website. Search Engine Land provides detailed guides that introduce and walk you through the SEO process. What we want to talk about now are the fundamentals of great SEO content writing for 2014, especially those fundamentals that stand out from all of the others.

The New Face of SEO

If you’ve ever been a minor spectator of SEO trends over the past year, you know that 2013 became branded as the year that changed SEO forever. Google released three major algorithm updates: Panda, Penguin and Hummingbird: see the Moz timeline. The most notable change we saw came in the form of a complete revamp of the proper way to optimize content.

Previously, keyword density was everything in SEO content writing. In fact, keyword density was so important that it was upheld over quality writing standards. Then, in 2013, the standards changed. Today, keyword density means practically nothing.

The New “Everything”

How to Blast Off Your SEO Content and Rankings for 2014 is the big question. The new “everything” of SEO is satisfying your audience’s thirst for quality content. Great content writing is no longer about stuffing in high traffic keywords and phrases. It’s about writing compelling, engaging, informative, relevant and entertaining content. It’s about standing out from the crowd as a credible and authoritative resource. It’s about creating the kind of blogs, articles, press releases and website pages that people can’t help but share with their friends and family.

So, where do you start? How do you jump on board and implement the new best practices of SEO content writing?

The Fundamentals of 2014

Let’s talk basics. You need a place to start. First of all, after a thorough review of the new SEO trends, Gianluca Fiorelli has concluded on The Moz Blog: “Sincerely, I don’t think that our daily lives as SEOs and inbound marketers will radically change in 2014 from what they are now.” So, avoid panicking with the thought that everything you previously knew is out of date. In all sincerity, the biggest change we see is the switch from keyword stuffing at all costs to writing high quality copy.

Your 2014 content needs to satisfy your audience’s thirst for quality material. How then do you start building an SEO strategy that delivers? Let’s cover the first three fundamentals:

1. Audience: Get to know your audience. In fact, challenge yourself to know your audience intimately. Before you even begin to brainstorm content ideas, you need to know your target audience inside and out. What are their needs? What do they want? What motivates and drives them? What issues are they seeking resolution to? What style of content will they want to read? Successful SEO content will use the audience as a focal point. How do you get to know your audience intimately? Stop thinking of them as just the audience; they’re people—like you and me! Use social media channels. Talk to them! Engage them. Track the content they respond to the most and encourage their feedback.

2. Keywords: Forget about keyword stuffing. Keyword insertion used to be a science. We had to insert keywords and phrases in a precise manner in order for search engine algorithms to properly crawl, capture and display our content. Today, keyword insertion is an art. Algorithms are smarter. They can mix and match word order while recognizing synonyms. As a result, well written content is the meat of our meal. Keywords are just the surrounding veggies; still important for a well-balanced meal, but not central.

3. Word counts: Focus on content, not word count. Previously, we kept our optimized copy short because we believed short, sweet and simple sold better than long, educational and informative. Well, we were wrong. People don’t want a short, simple sales pitch. They want to be educated buyers, capable and encouraged to make their own informed decisions. As a result, folks want to read meaty content. Don’t shy away from long-form content.

Just how effective are word counts to Google? detailed study indicates that copy of 2,000 words will be more fruitful than copy of 500 words. Check out the screenshot of the average word count the Google-favored blogs got:

Top 20 Fundamentals of Great SEO Content Writing for 2014 image 52f699216c5613.54540799

And guess what else—people on Twitter who shared longer blogs (over 1500 words) almost doubled the amount who shared blogs under 1500 words.

Top 20 Fundamentals of Great SEO Content Writing for 2014 image 52f69921bddd39.27450567

Quality Content is Still King

In 2014, quality content is the king of SEO best practices. But what exactly does this mean? How can you ensure you’re creating and outputting quality content? Well, let’s review the four fundamentals of quality content:

4. Relevance: If the content isn’t relevant to your business, don’t waste your time. For example, if you provide technical support services, don’t clutter your content with artsy design information. The reader will be confused. They’ve landed on your website to learn about technical support, not how to use Photoshop to create cool graphics for their website. If you confuse your audience with irrelevant information, expect to lose them as your audience.

5. Informative: Quality content will offer value in the form of information. People don’t want to be told you have the best product since sliced bread. They want to be educated about your product and how it places in the industry so they can decide if it’s the best product since sliced bread. They want to know how it relates to the problems they face or how it will solve their looming issue.

6. Compelling: Engaging and compelling writing is a must. Quality content will capture the reader’s attention and grip them until the very end. The only way to accomplish this is by writing in a compelling and engaging manner. Make the reader feel involved. Give them something to connect to.

7. Well written: Meaning there are no spelling, grammatical or formatting errors. It is highly important to ensure your copy is as perfect as possible. Content containing spelling, grammar and formatting errors will not only quickly turn off your audience, but it will also decrease your SERPs.

In essence, quality SEO content is applying lessons learned from the well-established and time tested publishing industry. How exactly does optimizing your copy with these four fundamentals relate to SEO? It gets people interested in and excited about your content. They’ll be ten times as likely to share it via social media, which brings us to the next SEO best practice:

Social Media Increases Rankings

Social media is huge for SEO in 2014. Why? Google will actually be referencing your social media presence as they calculate your overall optimization and rank your content.

Looking for proof? Here’s an infographic case study by Social Media Bistro:

Top 20 Fundamentals of Great SEO Content Writing for 2014 image 52f69922b3c3c7.60146429

Creating a few profiles isn’t enough. Your social media channels need to be active. The more active and relevant your social media posts are, the more they will contribute to your SERPs. Let’s cover the four fundamentals of SEO social media practices:

8. Engagement: Get into a conversation. You wouldn’t throw a party just to sit in the corner and avoid talking to your guests, would you? Social media is the same. Once you get your presence going, it’s time to mingle with your followers and get into intelligent conversations that hold relevance to your brand. Use your social media channels to start conversations, ask questions, respond to comments and stay involved in the discussion.

9. Lead generation content: Don’t be self-centered! You need to use your social media for more than self-promotion. Step into lead generation content by seasoning your posts with content about offers, downloadable content and webinars—whether they’re by your company or not.

10. Frequency: You should post frequently for best results. Do you use toothpaste whenever you feel like it? No, you use it frequently to generate the best overall results. Social media is very similar. The more frequently you post, the more active your channels grow and the more shares you generate.

11. Display value: Instead of looking like a spammer. It’s all too easy to blast notifications out through your social channels, but if they lack value your audience will soon unfollow you. Share information that informs, engages, educates and always perks interest.

SEO Link Building

Link building tactics are in, but they come with a warning: don’t be spammy or irrelevant! Building links for the sake of back-linking will quickly put you on the “Google Offenders” list. Before you insert a link into your content, be sure it meets SEO best practices:

12. Build a resource: Blogging is an excellent link building tactic. Google’s engineers even recommend it! You can use a blog to steadily publish relevant, educational material that is informative and entertaining. Then, build links to your posts by sharing your posts over social media.

13. Newsworthiness: The best way to encourage linking from outside sources. You can be and stay newsworthy by offering promotions, free giveaways, new product or service releases and starting conversations about current issues via social media. The juicier (or more exciting) the topic, the more newsworthiness you’ll gain.

14. Inspirational: People love inspiring stories. Who doesn’t inwardly squeal when the movie screen says, “Based on a true story?” It makes us all warm and tingly while inspiring us to do something epic. By creating inspirational content, you’ll create “natural linkbait,” or an open invitation for people to get excited and share your content.

15. Encourage links: Partnership badges can be a solid way to encourage links. People like to showcase who they support. You probably have something showing off your commitment to your favorite sports team. By giving your customers or followers a partnership badge, you’ll encourage them to show off their love of your product or service and link back to you.

Using Available SEO Tools

In 2014, we have some insanely powerful SEO tools right at our fingertips. The awesome part is that they’re free! You can round out your great content writing for SEO in 2014 with these must-use tools:

16. Google Authorship: If you don’t have it, get it. Google is literally handing you a free, easy to use ability to link via Google Authorship. When properly set up, Authorship will create an automatic author biography page link to each piece of copy you post that contains your byline. These links will display on your Google+ account and a visual graphic (your profile picture) will display beside your content on a Google search engine results page.

17. MozBar: a toolbar designed to make SEO easier. The MozBar can make choosing quality links for content as easy as 1, 2, 3. It offers an easily readable interface that includes everything from basic to in-depth SEO information about a given website or page. It’s a free tool worth downloading and learning to use, especially as you begin to choose and implement link building tactics.

18. Wordstream: A great tool for keyword research. While keywords aren’t making or breaking SEO today, they will still be needed to ensure you appear when someone searches for a type of product or service you provide.

Great Content Writing for SEO…

…involves a little bit more than adhering to the 18 fundamentals we’ve covered. While these form the skeleton of SEO for 2014, there are two more all-encompassing fundamentals to keeps in mind:

19. Originality: In order for your content to have a prayer of receiving a search engine rank, it must be original. You’d be smart to enlist the assistance of software, such as Copyscape, to ensure your content is always original and free of so much as a hint of plagiarism.

20. Professional Assistance: It isn’t a bad thing! A professional copywriter just might be your best friend in 2014 as you embark on the creation of quality content that promotes and incorporates SEO best practices.

One thing is certain: while search engine optimization hasn’t dramatically changed, the subtle changes in place for 2014 can wreak havoc with your SERPs if you don’t adhere to them and update your content. We’re likely to see even more changes as the year progresses and search engine algorithms continue to grow smarter.

Source: http://www.business2community.com/seo/top-20-fundamentals-great-seo-content-writing-2014-0777898#!wIjAY

The importance of high quality product data

If advertisers want to be truly multichannel then they need to have access to, and control of, their product data.

By extracting product data from several different sources, you can fulfil any required channel marketing

application.

Data can be extracted directly from your ecommerce site, existing data feeds or an API, and can then be distributed
into hundreds of different online channels, increasing the visibility of your products in front of online consumers.

However, it all hinges on having high-quality product data that is comprehensive, accurate and consumable.

Helen Southgate, UK Managing Director, Affilinet:

Overlooking quality - especially when it comes to data – is a big mistake…The correct data will drive customer
acquisition, incremental sales and contribute towards increasing the lifetime value of a customer. The wrong data
can impact brand reputation, growth and see an advertiser lose customers to a more savvy competitor.

Product data must be comprehensive

John Ashton, Digital Marketing Executive, Notonthehighstreet.com:

Having a product data feed that we can trust - that’s the most important thing. It means that we can be confident
that whoever accesses our products is getting the best, and most relevant, information...

Comprehensive data contains all the relevant product attributes for each unique, marketable product in your
inventory.

Product attributes include: price, description, images etc. and the most effective way of extracting rich product data
from ecommerce websites is through screen scraping as this tends to be the most reliable source of merchant
product information.

If attributes are missing from a product data feed consumers will not be able to see all product information. If this
happens, the advertiser loses credibility with the consumer as well as value, because their products cannot be
integrated into any channels that require those missing attributes.

To create a comprehensive product data set, product information should be gathered from more than one source,
e.g. data feeds, APIs and directly from an ecommerce website.

This ensures that no product attributes are missing and gives advertisers access to all the product data required for
their channel marketing initiatives.

Product data must be consumable

Chris Sheen, Head of Marketing, SaleCycle:

Product data is integral to SaleCycle's business, and the solutions we provide our clients. There are so many
different data sets which can influence your marketing decisions, from simple personal details (e.g. gender)
through to advanced demographic and modelling information (e.g. Mosaic) - but it's product level data which gives
us the clearest indication of a customer's buying intentions - both now and in the future.

Your product data must be in a usable format for marketing applications, taking attribute mapping and
transformation into consideration where necessary, so that partners, e.g. digital agencies and price comparison
sites, can use your product data.

It must also be in good order so that you can take advantage of new channel opportunities as and when they arise.

Consumable data is easily accessible and contains all necessary product attributes; this makes channel integration
simple and cost-effective, giving you more control over where your data is distributed. Data can be integrated as a
data feed or as part of an API that can be interpreted by those looking to use your data.

It can also be provided on an FTP site for download.

Optimising your data

Having comprehensive, accurate and consumable data enables the correct mapping and categorisation of your
product data. This makes it easier to integrate the data into online channels even if their menu categories are not
the same as those on your website.

Having product data which is clearly structured, labelled and formatted makes this process easier and it’s also
possible to combine or split product data to create new attributes, e.g. by taking attributes such as ‘colour’ or
‘gender’ from the product title.

This can also work the other way by combining individual attributes to optimise product titles or descriptions in
paid search automation.

High-quality data

Richard McKnight, Digital Marketing Manager, Chain Reaction Cycles:

With the online space becoming more competitive each year, one of the key areas that can position your business
ahead of competitors is quality data, not only to ensure your advertising channels are working correctly but also to
ensure relevant and efficient traffic is being driven from each.

Ultimately, you should always aim to have the highest quality data possible so that you can drive incremental sales
revenue through different channels and provide a consistent consumer experience of your products across
channels.

Having control of your product data enables you to create engaging content across various online channels
including: display advertising, marketplaces (Amazon, eBay etc.), Google Shopping, Price Comparison Search (CSEs),
behavioural retargeting and social media (Facebook).

If data is comprehensive, accurate and consumable it gives you the ability to be creative and flexible with your
data, displaying your products across multiple channels to reach the greatest number of consumers and give them
an optimised buying experience on your site.

Source: http://econsultancy.com/blog/64322-the-importance-of-high-quality-product-data