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» Safe Constraint Queries
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196
Voted
ICDE
2009
IEEE
165views Database» more  ICDE 2009»
16 years 2 months ago
Expressive Location-Based Continuous Query Evaluation with Binary Decision Diagrams
Many location-based services require rich and expressive query language support for filtering large amounts of information. In prominent location-based services thousands of conti...
Zhengdao Xu, Hans-Arno Jacobsen
189
Voted
VLDB
2001
ACM
151views Database» more  VLDB 2001»
16 years 22 days ago
Approximate query mapping: Accounting for translation closeness
Abstract In this paper we present a mechanism for approximately translating Boolean query constraints across heterogeneous information sources. Achieving the best translation is ch...
Kevin Chen-Chuan Chang, Hector Garcia-Molina
101
Voted
KDD
2004
ACM
139views Data Mining» more  KDD 2004»
16 years 28 days ago
Machine learning for online query relaxation
In this paper we provide a fast, data-driven solution to the failing query problem: given a query that returns an empty answer, how can one relax the query's constraints so t...
Ion Muslea
82
Voted
SIGMOD
2010
ACM
200views Database» more  SIGMOD 2010»
15 years 21 days ago
QRelX: generating meaningful queries that provide cardinality assurance
In many business and consumer applications, queries have cardinality constraints. However, current database systems provide minimal support for cardinality assurance. Consequently...
Manasi Vartak, Venkatesh Raghavan, Elke A. Rundens...
SPIRE
2005
Springer
15 years 6 months ago
XML Retrieval with a Natural Language Interface
Effective information retrieval in XML documents requires the user to have good knowledge of document structure and of some formal query language. XML query languages like XPath a...
Xavier Tannier, Shlomo Geva