Knowledge-based Information Retrieval

Ingeborg Sølvberg,Inge Nordbø,Agnar Aamodt

Future Generation Computer Systems（1992）CCF C

SINTEF DELAB

被引用9|浏览3

摘要

A knowledge-based system is used as a front-end to a very large database to increase the relevance of the information being retrieved. The subject domain of the data base is modelled in a semantic network and the queries to the database are expanded according to the semantic model. An experiment has been performed on a bibliographic database, by developing the prototype KNOWIT, a knowledge-based front-end to the information retrieval system ESA-QUEST11The prototype was developed for the European Space Agency under ESA-Contract AO/1-2096/89/HGE-1.. An experimental evaluation shows that the number of relevant bibliographic references retrieved with the knowledge-based front-end is significantly improved, without compromising the precision of the retrieval.

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关键词

Knowledge-based system,information retrieval,semantic model,semantic quest,ESA-QUEST

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