396 search results - page 11 / 80 » Semantic Optimization of Preference Queries |
CORR
2007
Springer
13 years 7 months ago
2007
Springer
We address the problem of answering Web ontology queries efficiently. An ontology is formalized as a Deductive Ontology Base (DOB), a deductive database that comprises the ontology...
VLDB
2005
ACM
14 years 1 months ago
2005
ACM
We study XML stream-specific schema-based optimization. We assume a widely-adopted automata-based execution model for XQuery evaluation. Criteria are established regarding what s...
VLDB
1998
ACM
13 years 12 months ago
1998
ACM
The goal of the COKO-KOLA project [10, 91 is to express rules of rule-basedoptimizers in a mannerpermitting verification with a theoremprover. In [IO], we consideredquerytransform...
VLDB
2004
ACM
14 years 29 days ago
2004
ACM
SIGMOD
1987
ACM
13 years 11 months ago
1987
ACM
