11 search results - page 2 / 3 » View-Based Query Processing and Constraint Satisfaction |
VDB
1998
13 years 7 months ago
1998
In this paper we discuss how metaphors for supporting user interaction with multimedia databases can be automatically generated. The work presented is a further step in the develo...
PODS
1999
ACM
13 years 10 months ago
1999
ACM
One of the most important types of query processing in spatial databases and geographic information systems is the spatial join, an operation that selects, from two relations, all...
ESA
2005
Springer
13 years 11 months ago
2005
Springer
Abstract. A materialized view is a certain synopsis structure precomputed from one or more data sets (called base tables) in order to facilitate various queries on the data. When t...
FOCS
1998
IEEE
13 years 10 months ago
1998
IEEE
This paper deals with the evaluation of acyclic Boolean conjunctive queries in relational databases. By well-known results of Yannakakis [1981], this problem is solvable in polynom...
ECAI
2006
Springer
13 years 9 months ago
2006
Springer
Several formalisms exist to express and solve decision problems. Each is designed to capture different kinds of knowledge: utilities expressing preferences, uncertainties on the en...