514 search results - page 60 / 103 » Answer Sets for Consistent Query Answering in Inconsistent D... |
PVLDB
2010
13 years 9 months ago
2010
Ontology-based data access is a powerful form of extending database technology, where a classical extensional database (EDB) is enhanced by an ontology that generates new intensio...
ICDE
2010
IEEE
14 years 10 months ago
2010
IEEE
1 We consider the problem of similarity search in applications where the cost of computing the similarity between two records is very expensive, and the similarity measure is not a...
DEXAW
2007
IEEE
14 years 23 days ago
2007
IEEE
Due to the lack of efficient native XML database management systems, XML data manipulation and query evaluation may be resource-consuming, and represent a bottleneck for several ...
DEXAW
2005
IEEE
14 years 27 days ago
2005
IEEE
In this paper, we study semistructured data and indexes preserving inclusion constraints. A semistructured datum is modelled by multi-rooted edge-labeled directed graphs. We consi...
IDEAS
2005
IEEE
14 years 4 months ago
2005
IEEE
Traditional approaches to query processing aim at rewriting a given query into another more efficient one that uses less time and/or resources during the execution. There by, the...