Creating segmented databases from free text for text retrieval
Lisa F. Rau, Paul S. Jacobs · 1991
Indexing text for accurate retrieval ZS a dificuli and in)portant problem.. On-ltne information services generally depend on "keyword" mdtces rather ihat~other methods of retrieval, because of the pract~cal jealures of keywords for storage, dtssemtnatlonj and browsing m well as for