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STOC
1999
ACM
176views Algorithms» more  STOC 1999»
15 years 7 months ago
On the Complexity of Computing Short Linearly Independent Vectors and Short Bases in a Lattice
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...
Johannes Blömer, Jean-Pierre Seifert
CPM
2008
Springer
112views Combinatorics» more  CPM 2008»
15 years 4 months ago
Computing Inverse ST in Linear Complexity
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...
Ge Nong, Sen Zhang, Wai Hong Chan
TSP
2010
14 years 9 months ago
Fast algorithms for the computation of sliding sequency-ordered complex hadamard transform
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...
Jiasong Wu, Huazhong Shu, Lu Wang, Lotfi Senhadji
CORR
2007
Springer
135views Education» more  CORR 2007»
15 years 3 months ago
Settling the Complexity of Computing Two-Player Nash Equilibria
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)
Xi Chen, Xiaotie Deng, Shang-Hua Teng
EOR
2002
68views more  EOR 2002»
15 years 2 months ago
The computational complexity of the criticality problems in a network with interval activity times
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) ...
Stefan Chanas, Pawel Zielinski