188 search results - page 10 / 38 » Query evaluation with soft-key constraints |
ECWEB
2004
Springer
14 years 23 days ago
2004
Springer
This paper presents a new technology for supporting flexible query management in recommender systems. It is aimed at guiding a user in refining her query when it fails to return ...
SCCC
2005
IEEE
14 years 29 days ago
2005
IEEE
Databases may not satisfy integrity constraints (ICs) for several reasons. Nevertheless, in most of the cases an important part of the data is still consistent wrt certain desired...
DKE
2010
13 years 7 months ago
2010
We describe the Consistency Extractor System (ConsEx) that computes consistent answers to Datalog queries with negation posed to relational databases that may be inconsistent with...
IV
2002
IEEE
14 years 8 days ago
2002
IEEE
In this paper a visual approach to querying in large spatial databases is presented. A diagrammatic technique utilising a data flow metaphor is used to express different kinds of...
ICDE
2007
IEEE
14 years 1 months ago
2007
IEEE
Retrieval queries that combine structural constraints with keyword search represent a significant challenge to XML data management systems. Queries are expected to be answered as...