199 search results - page 26 / 40 » Join queries on uncertain data: Semantics and efficient proc... |
ADBIS
2007
Springer
15 years 3 months ago
2007
Springer
The semantics of a new language (CUDL – Conceptual Universal Database Language), designed to manage dynamic database environments, are presented. This language conforms to the FD...
70
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VLDB
1990
ACM
15 years 1 months ago
1990
ACM
In this paper, we describe a new indexing technique, the time indez, for improving the performance of certain classes of temporal queries. The time index can be used to retrieve v...
APPINF
2003
14 years 11 months ago
2003
This paper presents an algorithm for recursive data processing in directed graphs. The proposed algorithm applies graph reduction in order to determine both starting points and a ...
VLDB
2004
ACM
15 years 2 months ago
2004
ACM
Ontologies are increasingly being used to build applications that utilize domain-specific knowledge. This paper addresses the problem of supporting ontology-based semantic matchin...
181
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ICDE
2006
IEEE
15 years 10 months ago
2006
IEEE
In this paper, we investigate a new approach to process queries in data stream applications. We show that reference locality characteristics of data streams could be exploited in ...