Latent Semantic Indexing

Latent Semantic Indexing (LSI) is the new buzz word in the seo fraternity. But exactly is means and what relevancy it carries in your seo efforts is not know to many. SEO Combat is here to shed some light on the topic.

Latent semantic indexing changes the way the document are indexed. In addition to recording which keywords a document contains, the LSI method checks the entire document matric of keywords as a whole, to see do the documents also contain the same words.

This way LSI determines whether the documents are semantically close, and ones with few words in common to be semantically distant. Although the LSI algorithm doesn’t understand anything about what the words mean, but these pattern that LSI creates makes a shift in search engine rankings.

Latent semantic indexing is an algorithm which moves above the occurence of a keyword in a document and goes to the page theme and analysis the importance of the page as per the matrix of words that appear on the page and how closely they are related. which implies that one shouldn’t just put your efforts into your selected key phrases but on synonymous phrases and key terms as well.

You can read more about this on the following white paper where the latent semantic concepts are explained more cleary to give you a better understanding on the subject.

http://www.seobook.com/lsi/cover_page.htm

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