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APPROX
2009
Springer
195views Algorithms» more  APPROX 2009»
14 years 3 months ago
Approximating Node-Connectivity Augmentation Problems
The (undirected) Node Connectivity Augmentation (NCA) problem is: given a graph J = (V, EJ ) and connectivity requirements {r(u, v) : u, v ∈ V }, find a minimum size set I of n...
Zeev Nutov
CALCO
2007
Springer
112views Mathematics» more  CALCO 2007»
14 years 3 months ago
Impossibility Results for the Equational Theory of Timed CCS
We study the equational theory of Timed CCS as proposed by Wang Yi in CONCUR’90. Common to Wang Yi’s paper, we particularly focus on a class of linearly-ordered time domains ex...
Luca Aceto, Anna Ingólfsdóttir, Moha...
TSMC
2010
13 years 3 months ago
Geometric Distortion Insensitive Image Watermarking in Affine Covariant Regions
Feature-based image watermarking schemes, which aim to survive various geometric distortions, have attracted great attention in recent years. Existing schemes have shown robustness...
Xinbo Gao, Cheng Deng, Xuelong Li, Dacheng Tao
FOCS
2006
IEEE
14 years 3 months ago
Approximation algorithms for allocation problems: Improving the factor of 1 - 1/e
Combinatorial allocation problems require allocating items to players in a way that maximizes the total utility. Two such problems received attention recently, and were addressed ...
Uriel Feige, Jan Vondrák
JSYML
2002
64views more  JSYML 2002»
13 years 8 months ago
Blowing up The Power Set of The Least Measurable
Abstract. We prove some results related to the problem of blowing up the power set of the least measurable cardinal. Our forcing results improve those of [1] by using the optimal h...
Arthur W. Apter, James Cummings