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JACM
1998
88views more  JACM 1998»
15 years 4 months ago
A Threshold of ln n for Approximating Set Cover
Given a collection Ᏺ of subsets of S ϭ {1, . . . , n}, set cover is the problem of selecting as few as possible subsets from Ᏺ such that their union covers S, and max k-cover ...
Uriel Feige
IMECS
2007
15 years 6 months ago
Metamodel-Assisted Global Search Using a Probing Technique
—This paper presents a new metamodel-assisted metaheuristic algorithm for optimisation problems involving computationally expensive simulations. The algorithm, called Global Prob...
Anna Persson, Henrik Grimm, Amos Ng
VLDB
2005
ACM
121views Database» more  VLDB 2005»
16 years 5 months ago
Join operations in temporal databases
Joins are arguably the most important relational operators. Poor implementations are tantamount to computing the Cartesian product of the input relations. In a temporal database, t...
Dengfeng Gao, Christian S. Jensen, Richard T. Snod...
134
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ASPDAC
2009
ACM
100views Hardware» more  ASPDAC 2009»
15 years 11 months ago
Noise minimization during power-up stage for a multi-domain power network
– With the popularity of Multiple Power Domain (MPD) design, the multi-domain power network noise analysis and minimization is becoming important. This paper describes an efficie...
Wanping Zhang, Yi Zhu, Wenjian Yu, Amirali Shayan ...
CORR
2008
Springer
129views Education» more  CORR 2008»
15 years 5 months ago
Polynomial Linear Programming with Gaussian Belief Propagation
Abstract--Interior-point methods are state-of-the-art algorithms for solving linear programming (LP) problems with polynomial complexity. Specifically, the Karmarkar algorithm typi...
Danny Bickson, Yoav Tock, Ori Shental, Danny Dolev