false drop - In information retrieval, a bibliographic record retrieved in a keywords search, which is completely unrelated to the subject of the search, usually because it meets the syntactic requirements of the query, but not its semantic requirements. False drops generally occur when when meaning is contingent on the order of search terms (library + school retrieves "library school" and "school library") or when a term used in a search statement has more than one meaning. For example, a search on the keyword "aids" will retrieve records for items about HIV infection, and also items about hearing aids, teaching aids, band-aids, etc. To avoid this problem, a word such as "disease" must be added to the search statement to make retrieval more prescise. Synonymous with false combination. See also: semantic factoring. ;
дс тдрлими цюлютдажкию дроемжки аиакиохдйис лидр
http://vax.wcsu.edu/library/odlis.html ;
http://www.lingvo.ru/lingvo/Link.asp;
