Search Engine Optimization is a very complex and an intelligent practice which needs constant update about various strategies and techniques invented by search engines. Web optimization using latest search engine methods gives more success to get good ranking in search engine result pages.

Google and other major search engines are always in progression to upgrade their search technology with change in time and web technology. When they get success in finding new search technology they utilize their advance technology to provide best and efficient search results to the millions of internet surfer across the globe.

Google’s Latent Semantic Indexing (LSI) Technology:

The recent technology introduced by Google is Latent Semantic Indexing (LSI) Technology.

LSI - Latent Semantic Indexing is a system that develops to search information by improving your ability to find information. LSI can easily retrieve any information using its automatic and powerful statistical algorithms. LSI analyzes the character strings in your web page and compares them to a large database of words, the meanings of which have been defined. LSI or LSA (Latent Semantic Analysis) can be used to determine the difference by means of analysis of the other words in the text.

How LSI Works?

When you enter search query to find information in search engines, LSI search relevant document with having words which are often used in the same context. If you enter some product or item in your search query, it also searches the popular brands for the search. For example if you enter ‘computer’ in your search it also shows popular PC brand name such as ‘Dell’, ‘Apple’ etc. LSI can retrieve relevant pages even when they do not share any words with your query — concepts replace keywords to improve retrieval. Latent semantic indexing adds an important step to the document indexing. Primarily, LSI was used to detect spam websites with having stuff of keywords used in their pages to get top rank in search engines. Latent semantic indexing helps search engines to search all about content of web page. It basically means that you should not focus on a single keyword when optimizing web pages and when getting links. You have to include words which are very related to that keywords (synonymous, popular brand name etc] For SEO using LSI, you should optimize some of web pages on your website for main keywords that are synonymous with the keyword you are targeting. In short while using latent semantic indexing for internet marketing, you should not focus on single keyword. You have to use all associated word with targeted keywords.

Following steps explain how LSI works:

The new concept space can be used to:

Compare the documents in the concept space (data clustering, document classification). Find similar documents across languages, after analyzing a base set of translated documents (cross language retrieval). Find relations between terms (synonymy and polysemy). Given a query of terms, translate it into the concept space, and find matching documents (information retrieval). LSI is used to determine the correct meaning of homonyms, heteronyms and polysemes.

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