Open AccessTowards Top-k Query Answering in Description Logics: The Case of DL-Lite
Author(s) -
Umberto Straccia
Publication year - 2006
Publication title -
lecture notes in computer science
Language(s) - English
Resource type - Book series
SCImago Journal Rank - 0.249
H-Index - 400
eISSN - 1611-3349
pISSN - 0302-9743
ISBN - 3-540-39625-X
DOI - 10.1007/11853886_36
Subject(s) - conjunctive query , computer science , information retrieval , fuzzy logic , theoretical computer science , artificial intelligence , relational database
We address the problem of evaluating ranked top-k queries in description logics. The problem occurs whenever we allow queries such as “find cheap hotels close to the conference location” in which fuzzy predicates like cheap and close occur. We show how to efficiently compute the top-k answers of conjunctive queries with fuzzy predicates over DL-LITE like knowledge bases.
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