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CIKM
1999
Springer
15 years 8 months ago
Rule-Based Query Optimization, Revisited
We present the architecture and a performance assessment of an extensible query optimizer written in Venus. Venus is a general-purpose active-database rule language embedded in C+...
Lane Warshaw, Daniel P. Miranker
VLDB
1998
ACM
97views Database» more  VLDB 1998»
15 years 8 months ago
Design and Analysis of Parametric Query Optimization Algorithms
Query optimizers normally compile queries into one optimal plan by assuming complete knowledge of all cost parameters such asselectivity and resourceavailability. The execution of...
Sumit Ganguly
GIS
2005
ACM
16 years 5 months ago
Two ellipse-based pruning methods for group nearest neighbor queries
Group nearest neighbor (GNN) queries are a relatively new type of operations in spatial database applications. Different from a traditional kNN query which specifies a single quer...
Hongga Li, Hua Lu, Bo Huang, Zhiyong Huang
ICDE
2008
IEEE
209views Database» more  ICDE 2008»
16 years 5 months ago
Distributed Monitoring of Peer-to-Peer Systems
In this paper, we are concerned with the distributed monitoring of P2P systems. We introduce the P2P Monitor system and a new declarative language, namely P2PML, for specifying mo...
Serge Abiteboul, Bogdan Marinoiu, Pierre Bourhis
CIKM
2005
Springer
15 years 9 months ago
Versatile structural disambiguation for semantic-aware applications
In this paper, we propose a versatile disambiguation approach which can be used to make explicit the meaning of structure based information such as XML schemas, XML document struc...
Federica Mandreoli, Riccardo Martoglia, Enrico Ron...