1059 search results - page 22 / 212 » Improving Semantic Query Answering |
PODS
1999
ACM
14 years 1 months ago
1999
ACM
Semistructured data occur in situations where information lacks a homogeneous structure and is incomplete. Yet, up to now the incompleteness of information has not been re ected b...
DATESO
2010
13 years 7 months ago
2010
Abstract. The task of similarity search in multimedia databases is usually accomplished by range or k nearest neighbor queries. However, the expressing power of these "single-...
ECAI
2006
Springer
14 years 19 days ago
2006
Springer
Abstract. We present an approximation theory for the extended answer set semantics, using the concept of an approximation constraint. Intuitively, an approximation constraint, whil...
PODS
2006
ACM
14 years 9 months ago
2006
ACM
The query equivalence problem has been studied extensively for set-semantics and, more recently, for bag-set semantics. However, SQL queries often combine set and bag-set semantic...
KRDB
2003
13 years 10 months ago
2003
Motivated by the possibilities of applying deductive database technology for efficient query answering in description logics, we present a translation operator µ that transforms...