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CIKM
2005
Springer
15 years 9 months ago
Selectivity-based partitioning: a divide-and-union paradigm for effective query optimization
Modern query optimizers select an efficient join ordering for a physical execution plan based essentially on the average join selectivity factors among the referenced tables. In ...
Neoklis Polyzotis
149
Voted
ICADL
2003
Springer
145views Education» more  ICADL 2003»
15 years 8 months ago
Towards Web Mining of Query Translations for Cross-Language Information Retrieval in Digital Libraries
This paper proposes an efficient client-server-based query translation approach to allowing more feasible implementation of cross-language information retrieval (CLIR) services in ...
Wen-Hsiang Lu, Jenq-Haur Wang, Lee-Feng Chien
ICSOC
2003
Springer
15 years 8 months ago
Service-Based Distributed Querying on the Grid
Service-based approaches (such as Web Services and the Open Grid Services Architecture) have gained considerable attention recently for supporting distributed application developme...
M. Nedim Alpdemir, Arijit Mukherjee, Norman W. Pat...
MDM
2010
Springer
180views Communications» more  MDM 2010»
15 years 8 months ago
Online Time Interval Top-k Queries in Wireless Sensor Networks
Motivated by many applications, top-k query is a fundamental operation in modern database systems. Technological advances have enabled the deployment of large-scale sensor networks...
Baichen Chen, Weifa Liang, Jeffrey Xu Yu
SIGIR
1998
ACM
15 years 7 months ago
Improving Automatic Query Expansion
Most casual users of IR systems type short queries. Recent research has shown that adding new words to these queries via adhoc feedback improves the retrieval e ectiveness of such ...
Mandar Mitra, Amit Singhal, Chris Buckley