Hi,
       what is latent semantic indexing?

Regards,
jeya vinoth

LSI (Latent Semantic Indexing) is the a portion of Google's calculation that will crease words into a grid for investigations, with the end goal of recognizing semantically related terms.

Latent Semantic Indexing (LSI) is a system used by Google and other major search engines. 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.

Latent Semantic Indexing these are the most similar keywords of primary keywords. Google utilize this way to identify the relationship between terms and concepts in un-organized piece of text.