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DBSEC
2003
137views Database» more  DBSEC 2003»
15 years 3 months ago
Certifying Data from Multiple Sources
Abstract Data integrity can be problematic when integrating and organizing information from many sources. In this paper we describe efficient mechanisms that enable a group of data...
Glen Nuckolls, Charles U. Martel, Stuart G. Stubbl...
JMLR
2006
206views more  JMLR 2006»
15 years 2 months ago
New Algorithms for Efficient High-Dimensional Nonparametric Classification
This paper is about non-approximate acceleration of high-dimensional nonparametric operations such as k nearest neighbor classifiers. We attempt to exploit the fact that even if w...
Ting Liu, Andrew W. Moore, Alexander G. Gray
KDD
2004
ACM
139views Data Mining» more  KDD 2004»
16 years 2 months 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
SIGMOD
2007
ACM
219views Database» more  SIGMOD 2007»
16 years 2 months ago
Efficient exploitation of similar subexpressions for query processing
Complex queries often contain common or similar subexpressions, either within a single query or among multiple queries submitted as a batch. If so, query execution time can be imp...
Jingren Zhou, Johann Christoph Freytag, Per-Å...
113
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CIKM
2005
Springer
15 years 8 months ago
Concept-based interactive query expansion
Despite the recent advances in search quality, the fast increase in the size of the Web collection has introduced new challenges for Web ranking algorithms. In fact, there are sti...
Bruno M. Fonseca, Paulo Braz Golgher, Bruno P&ocir...