Algorithm to suggest a list of tags to users

Posted by Itay Moav on Stack Overflow See other posts from Stack Overflow or by Itay Moav
Published on 2010-06-16T14:21:11Z Indexed on 2010/06/16 14:32 UTC
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Filed under:

algorithm

|

tags

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text-analysis

Given a free text, I need to analyse this this text and suggest a list of tags from a pre existing list.
What algorithms are out there in the market? Can they handle a case where, for example, the text have a word like

high cholesterol

and I would like it so suggest

heart disease

although "high cholesterol" might not exists (initially) in the pre defined list.

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