Thread: Latent Semantic Indexing?

What is Latent Semantic Indexing and how google works according to LSI Algorithm?

Thanks in advance for your opinions!!!

hmmm, I could find a lot of info online, so i thought I would show you one of the articles found:

LSI is an attempt to overcome this problem by looking at patterns of word distribution across the whole of the web. In doing so it considers pages that have many words in common to be close in meaning (semantically close) and pages with a few words in common to be semantically distant. The result is an LSI indexed database with similarity values it has calculated for every content word and phrase.

You can read more here: Latent semantic indexing

Latent Semantic Indexing (LSI) is an indexing and retrieval method that uses a mathematical technique called Singular value decomposition (SVD) to identify patterns in the relationships between the terms and concepts contained in an unstructured collection of text.