20 January 2009

Semantic Keywords: Latent Semantic Indexing and SEO

Latent Semantic Index (LSI), in a nutshell, seeks to index documents (e.g. webpages) based on semantically related concepts and keywords, not just syntactically related keywords.

Let me illustrate with a couple simple examples. We all have seen how Google recognizes that when you search for "car", you might also want webpages that contain "cars". This is a syntactical similarity - plural / singular, different tenses of a verb, etc. Search engines have long used syntactical variations on searches. Makes sense, seems pretty obvious. Latent Semantic Indexing, however, takes this to the next level. LSI basically learns from the web what keywords are most commonly related to "cars", for example. Then these keywords, which may or may not be synonyms for cars, are used in ranking webpages. If, for example, the top related keywords to "car" are "used cars", "new cars", "car rentals", and "car reviews", then perhaps when I search for "car", webpages with these additional keywords might rank higher than a page that mentions "car" but does not contain any of the commonly related keywords.

Why LSI and what does it mean for Search Engine Optimization? Both questions are answered the same way. Search engines seek to optimize the user experience by providing the most relevant, authoritative content for any given search. Search Engine Optimization (SEO) is our effort to organize our information in a way that search engines can easily understand so that it ranks high for the keywords we are targeting. Both work together to ultimately bring people to our websites who are looking for what we have to offer. How to do this is both the art and science (and yes, a little of both) of SEO.

So why LSI? Latent Semantic Indexing gives the search engines more information about the content of a webpage and helps rank the pages better. I might create a webpage about cars, but only use the keyword "car" a couple times, but when I am describing either the car parts, the economy around the car industry, or issues related to car rentals, I am using language specific to those subjects. Basically, LSI uses natural language processing techniques to learn this language. Now, using LSI, a search engine can take webpages that contains the keyword "car" and differentiate which ones are more relevant based on what other keywords are used.

I drove to school in my car, took my test, then came home early.
I can't decide if I want to buy a new or used car. Since the accident, I have been driving a rental.

Both of the above sentences mention the word "car" one time, but the former is not about a car at all, whereas the latter is entirely about a car. In fact, typical Information Retrieval techniques would rank the first sentence higher because it is shorter (meaning the word "car" represents a larger percentage of the total content). Using LSI techniques, a search engine might learn "new", "used", "rental", and "accident" are related to "car" and therefore rank the webpage containing the second sentence higher than that of the first when someone searches for "car".

LSI enables search engines to better rank relevant webpages to searches. There is plenty of evidence to suggest that LSI techniques are being used more and more by Google and other top search engines. This does have an effect on SEO techniques.

At Semantic Discovery, we combine our web crawling and natural language processing expertise into building SEO tools that really make a difference. We have developed a keyword suggestion crawler tool that employs Latent Semantic Indexing techniques. Our keyword suggestion tool doesn't just provide syntactic variations of keywords. There are plenty of free keyword tools out there that do that. Instead, what we focus on is bringing back the top related concepts to the keywords you are targeting. If the search engines are using LSI techniques to rank pages, then why not use LSI techniques to learn what related keywords are best to use?

Try the SD Keyword Suggestion Crawler for free!

15 January 2009

Keyword Crawler: Semantic keyword suggestion tool now available

Semantic Discovery is pleased to announce the release of our Keyword Crawler semantic keyword research tool. Keyword Crawler is two great keyword research tools bundled together; Keyword Site Crawler and Keyword Suggestion Crawler.

Use the Keyword Suggestion Crawler to discover new semantically related keywords to expand your website content and reach a broader audience. Enter up to ten of your own keyword phrases and the Keyword Suggestion Crawler will find the top semantically related keyword search phrases on the web.

Use the Keyword Site Crawler to analyze your competition's keywords. Enter up to ten websites and the Keyword Site Crawler will provide a list of the semantically related keyword phrases for each of the website's most relevant pages, and a list of the overlapping keyword search phrases for all the websites analyzed.

Both Keyword Crawler tools feature discovery of long tail keyword results up to five-word phrases, detection of keyword overlap between the analyzed websites or keywords, same-day keyword results collected by our web crawler the day your report is run. See all of the features of the Keyword Crawler SEO tools by visiting our website.

Whether starting a new website or fine tuning an existing one, Keyword optimization is a critical task when considering natural or paid traffic from search engines. Discovery of the right keywords can determine the success of your website through increased traffic. Start using Keyword Crawler today and discover the keyword search phrases your successful competitors are targeting on their websites.

Try out the Keyword Crawler keyword suggestion tools for free!

14 January 2009

Site Visibility search engine ranking report available for subscription

Do you know how you rank for your keyword search phrases?

Our new Site Visibility search engine ranking report provides an easy and convenient way for you to quickly find and track the rank of your keyword search phrases on Google™. The Site Visibility report also exposes additional top sites competing for your keyword search phrases using our exclusive Auto-Discover technology.

Major features of the Site Visibility search engine ranking report include:

  • The ability to track your Google™ rankings of up to 50 search terms per report
  • No limit on the number of websites you can track
  • Visual indicators to highlight rank changes from previous reports
  • Summary statistics of all your keyword search terms
  • Report scheduling based on your preferred frequency
  • Administration screen to manage and view all of your reports
  • All reports are web based, no software to install!

These are just some of the great features available with our Site Visibility search engine ranking report. See all of the features of the Site Visibility report by visiting our website. Or try our free trial SEO Visibility Report today!

Why should you care about your website's search engine ranking?

Simply put, successful websites utilize natural search engine listings to obtain visitors for very little cost.

Why should a website owner use the Site Visibility search engine ranking report?
To track and measure the progress of Search Engine Optimization (SEO) efforts, to ensure keyword search phrases remain in the top Google results, and to discover unknown competitors of your products or keyword search phrases.

Why should Website Design & SEO Firms use the Site Visibility search engine ranking report?
To utilize the exclusive competitor Auto-Discover feature to generate sales leads, to analyze the current search engine keyword rankings of prospective clients, and to track the progress of search engine optimization efforts of current clients.

Save time & money by using the Site Visibility report to automatically gather and analyze your keyword search engine rankings. View Site Visibility search engine ranking report subscription pricing on our website.

13 January 2009

Introducing Semantic Discovery

Welcome to Semantic Discovery's new blog! Our Semantic Discovery team has been working hard and is very excited to share our great new SEO products with the world. We have combined our expertise in web crawling and natural language processing to bring you our first two of many new SEO tools.

The first SEO tool we offer is our Site Visibility search engine ranking report. This tool allows you track the Google search engine rank of up to 50 keyword search terms for as many websites as you choose. The Site Visibility search engine ranking report can also track the Google ranking of up to five your competitors, and will auto discover an additional five competitors of your keyword search terms. This great tool is available immediately for subscription, or learn more by visiting our website.

Our second SEO tool is our Keyword Crawler keyword research tool. Keyword Crawler is actually two great keyword research tools bundle together; Keyword Site Crawler and Keyword Suggestion Crawler.
  • Keyword Site Crawler - Analyze your competition by utilizing the Keyword Site Crawler to crawl a group of websites, perform keyword analysis on the results, and provide a list of the keyword phrases being used on their most relevant pages.
  • Keyword Suggestion Crawler - Reach a broader audience by utilizing the Key Suggestion Crawler to find the current top semantically related keyword search phrases on the web from a list of your own keyword search phrases.
Both Keyword Crawler tools are available immediately for subscription, or learn more by visiting our website.

Bundle and save money by subscribing to both the Site Visibility search engine ranking report and the Keyword Crawler keyword research tools.

Please visit our blog often for news about Semantic Discovery, SEO tips, details about our existing and future SEO products, and thoughts on our core expertise in natural language processing, web crawling, and corporate information services.