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Choosing a basic lexer INDEX_STEMS value

edited Jul 29, 2009 1:50AM in Oracle Text (MOSC) 1 commentAnswered
 Can't find any documentation about this:  how does one choose the most appropriate value of the INDEX_STEMS attribute for the Oracle Text BASIC_LEXER?  In particular, what is the difference between DERIVATIONAL, DERIVATIONAL_ENGLISH_NEW, and ENGLISH? 
We use Oracle Text for full-text indexing of literature titles and abstracts, gene symbols, chemical names and disease names.

Thanks.


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