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» On Random Betweenness Constraints
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WIRN
2005
Springer
14 years 3 months ago
Ensembles Based on Random Projections to Improve the Accuracy of Clustering Algorithms
We present an algorithmic scheme for unsupervised cluster ensembles, based on randomized projections between metric spaces, by which a substantial dimensionality reduction is obtai...
Alberto Bertoni, Giorgio Valentini
PRICAI
1998
Springer
14 years 2 months ago
Dynamic Constraint Weighting for Over-Constrained Problems
Many real-world constraint satisfaction problems (CSPs) can be over-constrained but contain a set of mandatory or hard constraints that have to be satisfied for a solution to be ac...
John Thornton, Abdul Sattar
JUCS
2007
98views more  JUCS 2007»
13 years 9 months ago
Random k-GD-Sat Model and its Phase Transition
Abstract: We present a new type of sat problem called the k-gd-sat, which generalizes k-sat and gd-sat. In k-gd-sat, clause lengths have geometric distribution, controlled by a pro...
Milena Vujosevic-Janicic, Jelena Tomasevic, Predra...
SSWMC
2004
13 years 11 months ago
Steganalysis of block-structured stegotext
We study a detection-theoretic approach to steganalysis. The relative entropy between covertext and stegotext determines the steganalyzer's difficulty in discriminating them,...
Ying Wang, Pierre Moulin
ESA
2009
Springer
122views Algorithms» more  ESA 2009»
14 years 4 months ago
Bounded Budget Betweenness Centrality Game for Strategic Network Formations
In this paper, we introduce the bounded budget betweenness centrality game, a strategic network formation game in which nodes build connections subject to a budget constraint in or...
Xiaohui Bei, Wei Chen, Shang-Hua Teng, Jialin Zhan...