What do you know about LSI?

[Brucey]

Latent Semantic Indexing keywords can make your content look more natural to search engines and users. It is the synonym of your keyword.

[quansay]

Latent Semantic Indexing (LSI) is a system used by Google and other major search engines (Update: read here, thanks for the Tweets, guys) The contents of a webpage are crawled by a search engine and the most common words and phrases are collated and identified as the keywords for the page.

[phamthoa]

LSI is the abbreviated form of Latent Semantic Indexing. It has been emerged as a technique of fetching data via establishing a communication among words as well as employing synonyms in the midst of retrieving the data from the index.

[hoalan]

Google and LSI the whole thing started when Google purchased Applied Semantics back in 2003 – strangely, for their ad matching technology NOT for an IR approach necessarily. Google hoped it would, ""make online advertising more useful to users, publishers, and advertisers alike.""

They spoke of their interest in, "Applied Semantics' Ad-sense product that enables web publishers to understand the key themes on web pages to deliver highly relevant and targeted advertisements."

Did you catch that? Some odd program called 'Ad-sense' sound familiar? This (purchase of Applied Semantics) is by no means evidence of Google's use of LSI/A in the regular index...