Date: 2011-12-18 23:14:24

Tf*idf

Vector space model

Ranking function

Thesaurus

Relevance feedback

Traditional Chinese medicine

Search engine indexing

Jing

Document retrieval

Information science

Information retrieval

Science

205 J Chin Med 22(3,4): , 2011 pRiNCipLE-METHOd-RECipE-MEdiCiNE iNFORMATiON ExTRACTiON FROM

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