Query formulation and Feed-back study for a Thesaurus based Information System

Malwad, N.M.

dc.contributor.author	Malwad, N.M.
dc.date.accessioned	2011-08-05T20:37:19Z
dc.date.available	2011-08-05T20:37:19Z
dc.date.issued	1975
dc.identifier.citation	Thesaurus in Information Systems, Seminar Volume no. 13,	en_US
dc.identifier.uri	http://drtc.isibang.ac.in/ldl/handle/1849/478
dc.description.abstract	Query formulation is an output activity just as indexing is an input activity. Query formulation techniques are discussed, with reference to the International Nuclear Information System (INIS), its thesaurus and its data base. The improvement of query by feed-back study is examined. Different techniques of evaluating the retrieval of documents and simple mathematical expressions to calculate recall ratio and pertinence ratio are given. The ranking of pertinency of documents and its utility is discussed.	en_US
dc.language.iso	en	en_US
dc.publisher	DRTC	en_US
dc.subject	Subject headings	en_US
dc.subject	Indexes	en_US
dc.subject	Cataloging	en_US
dc.subject	Subject catalogs	en_US
dc.subject	Information systems	en_US
dc.subject	Queries	en_US
dc.title	Query formulation and Feed-back study for a Thesaurus based Information System	en_US
dc.type	Article	en_US