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» Approximate low-rank factorization with structured factors
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STOC
2006
ACM
138views Algorithms» more  STOC 2006»
14 years 7 months ago
The PCP theorem by gap amplification
The PCP theorem [3, 2] says that every language in NP has a witness format that can be checked probabilistically by reading only a constant number of bits from the proof. The cele...
Irit Dinur
PODS
2005
ACM
151views Database» more  PODS 2005»
14 years 7 months ago
Estimating arbitrary subset sums with few probes
Suppose we have a large table T of items i, each with a weight wi, e.g., people and their salary. In a general preprocessing step for estimating arbitrary subset sums, we assign e...
Noga Alon, Nick G. Duffield, Carsten Lund, Mikkel ...
XSYM
2009
Springer
136views Database» more  XSYM 2009»
14 years 2 months ago
Optimizing XML Compression
Abstract. The eXtensible Markup Language (XML) provides a powerful and flexible means of encoding and exchanging data. As it turns out, its main advantage as an encoding format (n...
Gregory Leighton, Denilson Barbosa
ESA
2005
Springer
113views Algorithms» more  ESA 2005»
14 years 1 months ago
Online View Maintenance Under a Response-Time Constraint
Abstract. A materialized view is a certain synopsis structure precomputed from one or more data sets (called base tables) in order to facilitate various queries on the data. When t...
Kamesh Munagala, Jun Yang 0001, Hai Yu
VRST
2003
ACM
14 years 21 days ago
Time-critical collision detection using an average-case approach
We present a novel, generic framework and algorithm for hierarchical collision detection, which allows an application to balance speed and quality of the collision detection. We p...
Jan Klein, Gabriel Zachmann