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STOC
1999
ACM
15 years 2 months ago
1999
ACM
Motivated by Ajtai’s worst-case to average-case reduction for lattice problems, we study the complexity of computing short linearly independent vectors (short basis) in a lattic...
CPM
2008
Springer
14 years 11 months ago
2008
Springer
The Sort Transform (ST) can significantly speed up the block sorting phase of the Burrows-Wheeler transform (BWT) by sorting only limited order contexts. However, the best result o...
TSP
2010
14 years 4 months ago
2010
Fast algorithms for computing the forward and inverse sequency-ordered complex Hadamard transforms (SCHT) in a sliding window are presented. The first algorithm consists of decompo...
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CORR
2007
Springer
14 years 9 months ago
2007
Springer
We prove that Bimatrix, the problem of finding a Nash equilibrium in a two-player game, is complete for the complexity class PPAD (Polynomial Parity Argument, Directed version)
EOR
2002
14 years 9 months ago
2002
The paper analyzes the criticality in a network with interval activities duration times. A natural generalization of the criticality notion (for a path, an activity and an event) ...