Is The Google LSI Myth or Fact?

It's crawling the web and it's the LSI explosion.

After making my last post, I received this email from Michael Duz about Google Latent Semantec Indexing (LSI), and I think it's worth reading and worth taking a look at, but I stress, there are many, many other and easier ways to get traffic to your blog, so I wouldn't focus on LSI (whether you believe it to be fact or myth) as a strategy for getting "brownie points" with the Google.

I'm posting this comment because I made reference to it in my previous post and, because I want to discourage you from focusing on it. 

Enjoy!  

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Your recent post 'Write Better Blog Posts' came onto my horizon and I have a couple of suggestions for you, hope you don't mind?

You say "Google now uses something called Latent Semantic Indexing (LSI) to match phrases on a page…." which I am afraid to say is completely untrue.

However it is unfortunately a prevalent myth. LSI is a complex mathematical concept little understood outside of the Information Retrieval academic milieu. I humbly suggest you read a couple of recent posts of mine on this topic which I wrote in an attempt to get  the myth, that search engines use LSI, buried once and for all.

What is Latent Semantic Indexing (LSI)?
http://www.seo-blog.com/latent-semantic-indexing-lsi-explained.php
The LSI Myth http://www.seo-blog.com/latent-semantic-index-lsi-myth.php

It is however likely that Google (alone) is using 'Phrase Based Generation of Document Descriptions' but that also is a complex topic and little understood by the lay person.

The best advice is to write content naturally and forget about writing for the search engines. I have in the past posted a synopsis of best practise in this area which you may also find interesting
http://www.seo-blog.com/text.php

Thank you for your time and if you feel like joining the ranks of Dr Garcia http://www.miislita.com/information-retrieval-tutorial/svd-lsi-tutorial-5-lsi-keyword-research-co-occurrence.html
and other mathematicians in debunking the myth you will be most welcome!

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