Idle Semantic Indexing (LSI) is a numerical technique used to decide the connection amongst terms and ideas in content. The substance of a site page are slithered by a web search tool and the most widely recognized words and expressions are ordered and distinguished as the watchwords for the page.

LSI keywords or Latent Semantic Indexing are semantically connected with the primary catchphrase that clients enter over the web search tools.

LSI stands for Latent Semantic Index(ing). This is a computer program that is designed to learn a wide variety of synonyms based on context. It's a method that uses mathematical techniques to find relationships between words