Latent Semantic Indexing (LSI) is a method of indexing and analyzing the content of a webpage or document in order to understand its meaning and context. LSI is based on the idea that the words and phrases that are used on a webpage or in a document are related to one another and that the meaning of a word or phrase can be determined by the other words and phrases that are used in close proximity to it.
LSI is used by search engines to help understand the content of a webpage and to improve the accuracy of search results. By using LSI, search engines can better understand the meaning and context of the content on a webpage and can provide more relevant and useful search results to users.
Overall, LSI is a useful tool for improving the accuracy and relevance of search results and can help search engines better understand the content and context of a webpage.