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» Creating Database Queries by Demonstration
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IPM
2007
143views more  IPM 2007»
14 years 9 months ago
QCS: A system for querying, clustering and summarizing documents
Information retrieval systems consist of many complicated components. Research and development of such systems is often hampered by the difficulty in evaluating how each particula...
Daniel M. Dunlavy, Dianne P. O'Leary, John M. Conr...
ACL
2006
14 years 11 months ago
On-Demand Information Extraction
At present, adapting an Information Extraction system to new topics is an expensive and slow process, requiring some knowledge engineering for each new topic. We propose a new par...
Satoshi Sekine
VLDB
2007
ACM
101views Database» more  VLDB 2007»
15 years 10 months ago
SQLB: A Query Allocation Framework for Autonomous Consumers and Providers
In large-scale distributed information systems, where participants are autonomous and have special interests for some queries, query allocation is a challenge. Much work in this c...
Jorge-Arnulfo Quiané-Ruiz, Patrick Valdurie...
CIKM
2005
Springer
15 years 3 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
ADBIS
2004
Springer
93views Database» more  ADBIS 2004»
15 years 3 months ago
Query Rewriting Using Views in a Typed Mediator Environment
Abstract. Query rewriting method is proposed for the heterogeneous information integration infrastructure formed by the subject mediator environment. Local as View (LAV) approach t...
Leonid A. Kalinichenko, Dmitry O. Martynov, Sergey...