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» On the Algebraic Structure of Convergence
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ICASSP
2009
IEEE
16 years 1 months ago
Shrinkage estimation of high dimensional covariance matrices
We address covariance estimation under mean-squared loss in the Gaussian setting. Specifically, we consider shrinkage methods which are suitable for high dimensional problems wit...
Yilun Chen, Ami Wiesel, Alfred O. Hero
INFOCOM
2009
IEEE
16 years 28 days ago
A Sybilproof Indirect Reciprocity Mechanism for Peer-to-Peer Networks
Abstract— Although direct reciprocity (Tit-for-Tat) contribution systems have been successful in reducing freeloading in peerto-peer overlays, it has been shown that, unless the ...
Raul Landa, David Griffin, Richard G. Clegg, Eleni...
GECCO
2009
Springer
135views Optimization» more  GECCO 2009»
16 years 26 days ago
Steady-state ALPS for real-valued problems
The objectives of this paper are to describe a steady-state version of the Age-Layered Population Structure (ALPS) Evolutionary Algorithm (EA) and to compare it against other GAs ...
Gregory S. Hornby
INFOCOM
2008
IEEE
16 years 21 days ago
Distributed Robust Optimization for Communication Networks
—Robustness of optimization models for networking problems has been an under-explored area. Yet most existing algorithms for solving robust optimization problems are centralized,...
Kai Yang, Yihong Wu, Jianwei Huang, Xiaodong Wang,...
SMI
2008
IEEE
108views Image Analysis» more  SMI 2008»
16 years 20 days ago
Variational Multilevel Mesh Clustering
In this paper a novel clustering algorithm is proposed, namely Variational Multilevel Mesh Clustering (VMLC). The algorithm incorporates the advantages of both hierarchical and va...
Iurie Chiosa, Andreas Kolb