DocumentCode :
2221473
Title :
A logic-based approach for query refinement in ontology-based information retrieval systems
Author :
Stojanovic, Nenad ; Stojanovic, Ljiljana
Author_Institution :
Inst. fur Angewandte Inf. und Formale Beschreibungsverfahren, Karlsruhe Univ., Germany
fYear :
2004
fDate :
15-17 Nov. 2004
Firstpage :
450
Lastpage :
457
Abstract :
We present a logic-based approach for query refinement in ontology-based information portal. The approach enables a user to navigate through the information content incrementally and interactively. In each refinement step a user is provided with a complete but minimal set of refinements, which enables him to develop/express his information need in a step-by-step fashion. The approach is based on the model-theoretic interpretation of the refinement problem, so that the query refinement process can be considered as the process of inferring all queries which are subsumed by a given query. Moreover, query refinements are ranked according to their relevance to user´s needs, whereas these needs are online discovered by analysing a user´s behaviour. The approach is very suitable for modelling information retrieval tasks based on the database repositories, like searching product catalogues.
Keywords :
database management systems; formal logic; information needs; information retrieval systems; ontologies (artificial intelligence); portals; query processing; database repositories; information retrieval system; logic-based approach; ontology-based information portal; product catalogues; query refinement; DVD; Databases; Information retrieval; Information technology; Logic programming; Navigation; Ontologies; Portals; Refining; Terminology;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Tools with Artificial Intelligence, 2004. ICTAI 2004. 16th IEEE International Conference on
ISSN :
1082-3409
Print_ISBN :
0-7695-2236-X
Type :
conf
DOI :
10.1109/ICTAI.2004.13
Filename :
1374222
Link To Document :
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