TERM FREOUENCY AND TERM VALUE S.E. R o b e r t s o n C i t y U n i v e r s i t y , London, U.K. It has long b e e n r e c o g n i z e d that the c o l l e c t i o n frequency of an index term, that is the n u m b e r of documents to w h i c h it is assigned, is p o t e n t i a l l y of value in retrieval. In p a r t i c u l a r , some use h a s b e e n made of t e r m w e i g h t i n g functions which use (either alone or in c o m b i n a t i o n with other information) t e r m f r e q u e n c y data. There is much e x p e r i m e n t a l e v i d e n c e that such
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Term frequency and term value
Robertson, S. E.
Follow ACM SIGIR Forum
, Volume 16 (1)
Association for Computing Machinery – Jun 1, 1981
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