Many people are confused by search engine optimization and LSI. What is LSI and what has it to do with SEO? In fact nothing. Thats right nothing. Zilch. Absolutely nothing whatsoever. So why all the fuss? Through ignorance and possible subterfuge.
LSI stands for Latent Semantic Indexing, a term that has no meaning whatsoever. There is a term called latent semantic analysis that is the analysis of the hidden meaning of text and its explanation by means of an analysis of the way that other words in the passage are used. The code for each letter in a word is analyzed, and the word thereby identified. There are certain known juxtapositions of certain words that provide a meaning to these words, although all may not be what it seems.
For example, is I bought an apple, did I buy a computer or a piece of fruit? That only becomes apparent when the rest of the semantics of the passage is analyzed. The word semantics means the meaning of words in the way that they are used. For example: I bought a dog lead for my German shepherd indicates that the German shepherd is a dog, and not a Teutonic gentleman looking after sheep. It is the rest of the semantics in the text that...