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Paper Abstract and Keywords
Presentation 2010-11-04 15:00
[Poster Presentation] Probabilistic Inference by minimizing the TRW Free Energy using CCCP
Yu Nishiyama (RIKEN), Xingyao Ye, Alan L. Yuille (UCLA)
Abstract (in Japanese) (See Japanese page) 
(in English) We propose a family of convergent double-loop algorithms which minimize the TRW free energy. These algorithms are based on the concave convex procedure (CCCP) so we call them TRW-CCCP. Our formulation includes many free parameters which specify an infinite number of decompositions of the TRW free energy into convex and concave parts. TRW-CCCP is guaranteed to converge to the global minima for any settings of these free parameters, including adaptive settings if they satisfy conditions defined in this paper. We show that the values of these free parameters control the speed of convergence of the the inner and outer loops in TRW-CCCP. We performed experiments on a two-dimensional Ising model observing that TRW-CCCP converges to the global minimum of the TRW free energy and that the convergence rate depends on the parameter settings. We compare with the original message passing algorithm (TRW-BP) by varying the difficulty of the problem (by adjusting the energy function) and the number of iterations in the inner loop of TRW-CCCP. We show that on difficult problems TRW-CCCP converges faster than TRW-BP (in terms of total number of iterations) if few inner loop iterations are used.
Keyword (in Japanese) (See Japanese page) 
(in English) TRW Free Energy / CCCP / Probabilistic Inference / Markov Random Fields / Marginals / / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 265, IBISML2010-66, pp. 51-58, Nov. 2010.
Paper # IBISML2010-66 
Date of Issue 2010-10-28 (IBISML) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380

Conference Information
Committee IBISML  
Conference Date 2010-11-04 - 2010-11-06 
Place (in Japanese) (See Japanese page) 
Place (in English) IIS, Univ. of Tokyo 
Topics (in Japanese) (See Japanese page) 
Topics (in English) IBIS 2010 (Workshop on Information-based Induction Sciences) 
Paper Information
Registration To IBISML 
Conference Code 2010-11-IBISML 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Probabilistic Inference by minimizing the TRW Free Energy using CCCP 
Sub Title (in English)  
Keyword(1) TRW Free Energy  
Keyword(2) CCCP  
Keyword(3) Probabilistic Inference  
Keyword(4) Markov Random Fields  
Keyword(5) Marginals  
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1st Author's Name Yu Nishiyama  
1st Author's Affiliation RIKEN (RIKEN)
2nd Author's Name Xingyao Ye  
2nd Author's Affiliation UCLA (UCLA)
3rd Author's Name Alan L. Yuille  
3rd Author's Affiliation UCLA (UCLA)
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Speaker
Date Time 2010-11-04 15:00:00 
Presentation Time 180 
Registration for IBISML 
Paper # IEICE-IBISML2010-66 
Volume (vol) IEICE-110 
Number (no) no.265 
Page pp.51-58 
#Pages IEICE-8 
Date of Issue IEICE-IBISML-2010-10-28 


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