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» On the Structure of Bounded Queries to Arbitrary NP Sets
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CVPR
2009
IEEE
15 years 3 months ago
Learning query-dependent prefilters for scalable image retrieval
We describe an algorithm for similar-image search which is designed to be efficient for extremely large collections of images. For each query, a small response set is selected by...
Lorenzo Torresani (Dartmouth College), Martin Szum...
PODS
2006
ACM
134views Database» more  PODS 2006»
14 years 8 months ago
Finding global icebergs over distributed data sets
Finding icebergs ? items whose frequency of occurrence is above a certain threshold ? is an important problem with a wide range of applications. Most of the existing work focuses ...
Qi Zhao, Mitsunori Ogihara, Haixun Wang, Jun Xu
PODS
2006
ACM
196views Database» more  PODS 2006»
14 years 8 months ago
The containment problem for REAL conjunctive queries with inequalities
Query containment is a fundamental algorithmic problem in database query processing and optimization. Under set semantics, the query-containment problem for conjunctive queries ha...
T. S. Jayram, Phokion G. Kolaitis, Erik Vee
BIOINFORMATICS
2011
13 years 7 days ago
libfbi: a C++ implementation for fast box intersection and application to sparse mass spectrometry data
Abstract. This document is a preprint of the following publication: Bioinformatics (2011) 27(8): 1166-1167. Algorithms for sparse data require fast search and subset selection capa...
Marc Kirchner, Buote Xu, Hanno Steen, Judith A. J....
PODS
2009
ACM
130views Database» more  PODS 2009»
14 years 9 months ago
Secondary indexing in one dimension: beyond b-trees and bitmap indexes
Let be a finite, ordered alphabet, and consider a string x = x1x2 . . . xn n . A secondary index for x answers alphabet range queries of the form: Given a range [al, ar] , retu...
Rasmus Pagh, Srinivasa Rao Satti