316 search results - page 37 / 64 » Evaluation of Conditional Preference Queries |
DBVIS
1993
15 years 4 months ago
1993
In this paper, we present ideas how visualization technology can be used to improve the difficult process of querying very large databases. With our VisDB system, we try to provid...
ICDT
2005
ACM
15 years 5 months ago
2005
ACM
d abstract) Foto Afrati1 and Rada Chirkova2 1 Electrical and Computing Eng., National Technical University of Athens, 157 73 Athens, Greece 2 Computer Science Department, North Car...
100
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PODS
2001
ACM
16 years 2 days ago
2001
ACM
Database systems frequently have to execute a set of related queries, which share several common subexpressions. Multi-query optimization exploits this, by finding evaluation plan...
100
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ASWC
2009
Springer
15 years 3 months ago
2009
Springer
In this paper we describe the Web 3.0 case study WellnessRules, where ontology-structured rules (including facts) about wellness opportunities are created by participants in rule l...
146
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ICNS
2006
IEEE
15 years 6 months ago
2006
IEEE
This paper proposes a mobile ad hoc networking approach to detecting and querying events related to farm animals such as oestrus, animal diseases and decreased efficiency of pastu...