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FOCS
2004
IEEE
15 years 10 months ago
Hardness of Approximating the Shortest Vector Problem in Lattices
Let p > 1 be any fixed real. We show that assuming NP RP, there is no polynomial time algorithm that approximates the Shortest Vector Problem (SVP) in p norm within a constant ...
Subhash Khot
EOR
2002
74views more  EOR 2002»
15 years 6 months ago
Modeling multistage cutting stock problems
In multistage cutting stock problems (CSP) the cutting process is distributed over several successive stages. Every stage except the last one produces intermediate products. The l...
Eugene J. Zak
SSDBM
2007
IEEE
110views Database» more  SSDBM 2007»
16 years 1 months ago
On Exploring Complex Relationships of Correlation Clusters
In high dimensional data, clusters often only exist in arbitrarily oriented subspaces of the feature space. In addition, these so-called correlation clusters may have complex rela...
Elke Achtert, Christian Böhm, Hans-Peter Krie...
HPCC
2007
Springer
16 years 27 days ago
A Complex Network-Based Approach for Job Scheduling in Grid Environments
Many optimization techniques have been adopted for efficient job scheduling in grid computing, such as: genetic algorithms, simulated annealing and stochastic methods. Such techni...
Renato Porfirio Ishii, Rodrigo Fernandes de Mello,...
WDAG
2007
Springer
82views Algorithms» more  WDAG 2007»
16 years 25 days ago
The Space Complexity of Unbounded Timestamps
The timestamp problem captures a fundamental aspect of asynchronous distributed computing. It allows processes to label events throughout the system with timestamps that provide in...
Faith Ellen, Panagiota Fatourou, Eric Ruppert