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IACR
2011
149views more  IACR 2011»
12 years 9 months ago
Improved zero-sum distinguisher for full round Keccak-f permutation
Keccak is one of the five hash functions selected for the final round of the SHA-3 competition and its inner primitive is a permutation called Keccakf. In this paper, we find t...
Ming Duan, Xuejia Lai
WADS
2005
Springer
95views Algorithms» more  WADS 2005»
14 years 3 months ago
Improved Approximation Bounds for Planar Point Pattern Matching
We analyze the performance of simple algorithms for matching two planar point sets under rigid transformations so as to minimize the directed Hausdorff distance between the sets....
Minkyoung Cho, David M. Mount
ICC
2000
IEEE
111views Communications» more  ICC 2000»
14 years 2 months ago
Improving Bandwidth Utilization Based on Deterministic Delay Bound in Connection-Oriented Networks
Abstract—Packet scheduling disciplines play an important role in providing Quality of Service (QoS) guarantees to applications traffic in high speed networks. Several scheduling...
Peerapon Siripongwutikorn, Sujata Banerjee
ECCC
2000
93views more  ECCC 2000»
13 years 9 months ago
Improved Approximation of MAX-CUT on Graphs of Bounded Degree
We analyze the addition of a simple local improvement step to various known randomized approximation algorithms. Let ' 0:87856 denote the best approximation ratio currently k...
Uriel Feige, Marek Karpinski, Michael Langberg
DMTCS
2010
133views Mathematics» more  DMTCS 2010»
13 years 7 months ago
An improved bound on the largest induced forests for triangle-free planar graphs
We proved that every planar triangle-free graph with n vertices has a subset of vertices that induces a forest of size at least (71n + 72)/128. This improves the earlier work of S...
Lukasz Kowalik, Borut Luzar, Riste Skrekovski