LSI stand for Latent Semantic Indexing.Its function in a matrix,a method of liner algebra and it is a technical way of analyzing relevant information from different document and linking them up to gather.LSi goes beyond the usual keyword search result from a search engine.
Latent semantic indexing helps search engines to find out what a web page is all about. It basically means to you that you shouldn't focus on a single keyword when optimizing your web pages and when getting links. The web pages on your web site should be related and focus mainly on a special topic while using different words that describe the topic. Use variations of your keyword and synonyms. That makes it easier for search engines to determine the topic of your site. (c)
Latent Semantic Indexing (LSI) in simple terms is the ability of search engine to search websites on the internet like any human will, i.e. sites with quality and relevance will be ranked higher compared to those with keyword & link stuffing. You can refer latentsemanticindexing.com for detailed information.
LSI is the short form of Latent Semantic Indexing. Normally it is meant for web crawler and its way of indexing. It is the newest technology adopted by web crawler the way they use to crawl the web. In LSI based method web cralwer will understand, the different possible synonyms of a particular word and will fetch result from all those web pages which include those words and even will look for pages which includes synonyms and most related words of query from the web