What is not lost with the personalization of search:
Important components of search marketing have always been and will always be increasing quality traffic, increasing sales, and increasing profit. These are the ultimate indicators of success for any search marketing campaign. The introduction of personalized results for users does not change the importance of these indicators or goals in any way.
Personalization of Search and its implications for SEO...
LSI is a methodology for automatic document classification. It examines all the words in all the documents of a corpus and calculates similarity measurements for each document or for individual terms.