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UAI
2008
13 years 10 months ago
Hierarchical POMDP Controller Optimization by Likelihood Maximization
Planning can often be simplified by decomposing the task into smaller tasks arranged hierarchically. Charlin et al. [4] recently showed that the hierarchy discovery problem can be...
Marc Toussaint, Laurent Charlin, Pascal Poupart
AAAI
2008
13 years 11 months ago
Markov Blanket Feature Selection for Support Vector Machines
Based on Information Theory, optimal feature selection should be carried out by searching Markov blankets. In this paper, we formally analyze the current Markov blanket discovery ...
Jianqiang Shen, Lida Li, Weng-Keen Wong
UAI
2003
13 years 10 months ago
Probabilistic Models For Joint Clustering And Time-Warping Of Multidimensional Curves
In this paper we present a family of models and learning algorithms that can simultaneously align and cluster sets of multidimensional curves measured on a discrete time grid. Our...
Darya Chudova, Scott Gaffney, Padhraic Smyth
CDC
2009
IEEE
123views Control Systems» more  CDC 2009»
14 years 1 months ago
On the myopic policy for a class of restless bandit problems with applications in dynamic multichannel access
We consider a class of restless multi-armed bandit problems that arises in multi-channel opportunistic communications, where channels are modeled as independent and stochastically...
Keqin Liu, Qing Zhao
WWW
2007
ACM
14 years 9 months ago
Expertise networks in online communities: structure and algorithms
Web-based communities have become important places for people to seek and share expertise. We find that networks in these communities typically differ in their topology from other...
Jun Zhang, Mark S. Ackerman, Lada A. Adamic