Sciweavers

1125 search results - page 26 / 225
» Query Answering in Inconsistent Databases
Sort
View
VLDB
2003
ACM
141views Database» more  VLDB 2003»
14 years 8 months ago
Computing complete answers to queries in the presence of limited access patterns
In data applications such as information integration, there can be limited access patterns to relations, i.e., binding patterns require values to be specified for certain attribut...
Chen Li
FQAS
1998
Springer
133views Database» more  FQAS 1998»
13 years 12 months ago
Estimating the Quality of Databases
Abstract. With more and more electronic information sources becoming widely available, the issue of the quality of these often-competing sources has become germane. We propose a st...
Amihai Motro, Igor Rakov
JAPLL
2010
179views more  JAPLL 2010»
13 years 6 months ago
Tractable query answering and rewriting under description logic constraints
Answering queries over an incomplete database w.r.t. a set of constraints is an important computational task with applications in fields as diverse as information integration and ...
Héctor Pérez-Urbina, Boris Motik, Ia...
ICDE
2012
IEEE
249views Database» more  ICDE 2012»
11 years 10 months ago
Answering Why-not Questions on Top-k Queries
Abstract—After decades of effort working on database performance, the quality and the usability of database systems have received more attention in recent years. In particular, t...
Zhian He, Eric Lo
FQAS
2004
Springer
104views Database» more  FQAS 2004»
14 years 1 months ago
Logic-Based Integration of Query Answering and Knowledge Discovery
Abstract. There is currently great interest in integrating knowledge discovery research into mainstream database systems. Such an enterprise is nontrivial because knowledge discove...
Marcelo A. T. Aragão, Alvaro A. A. Fernande...