Title:
MODEL ESTIMATION DEVICE, MODEL ESTIMATION METHOD, AND MODEL ESTIMATION PROGRAM
Document Type and Number:
WIPO Patent Application WO/2015/068330
Kind Code:
A1
Abstract:
A model estimation device (100) equipped with: a hidden variable variation probability calculation processing unit (104) that obtains parameters in a hidden variable model, and uses these parameters to calculate a constrained hidden variable variation probability, which is the posterior probability of hidden variables near a preassigned distribution; a model parameter optimization processing unit (105) that uses the constrained hidden variable variation probability to optimize the parameters in the hidden variable model; and an optimality determination processing unit (106) that determines whether a marginalized logarithm likelihood function which uses the optimized parameters is converging. When it is determined that the marginalized logarithm likelihood function is converging, the constrained hidden variable variation probability and the parameters used in that marginalized logarithm likelihood function are output.
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Inventors:
ETO RIKI (JP)
FUJIMAKI RYOHEI (JP)
TAMANO HIROSHI (JP)
FUJIMAKI RYOHEI (JP)
TAMANO HIROSHI (JP)
Application Number:
PCT/JP2014/004997
Publication Date:
May 14, 2015
Filing Date:
September 30, 2014
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
G06N5/04
Domestic Patent References:
| WO2011108632A1 | 2011-09-09 | |||
| WO2012128207A1 | 2012-09-27 |
Other References:
TAKATOSHI JITSUHIRO ET AL.: "The Succesive State Splitting Algorithm based on the Variational Bayesian Approach", IPSJ SIG NOTES, vol. 2003, no. 124, 19 December 2003 (2003-12-19), pages 43 - 48, XP008183079
HAYARU SHONO ET AL.: "A latent variational approximation method of Total variation for noise reduction", IEICE TECHNICAL REPORT, vol. 111, no. 275, 19 December 2003 (2003-12-19), pages 217 - 222, XP008183078
KENJI FUJIMOTO ET AL.: "Jotai Kukan Model no Hanbun Bayes Suitei", CURRENT ADVANCES IN MATERIALS AND PROCESSES CAMP-ISIJ DAI 156 KAI SHUKI KOEN TAIKAI, vol. 21, no. 2, 1 September 2008 (2008-09-01), pages 1118, 1121, XP008183121
C. BISHOP; SVENSKN M.: "Bayesian hierarchical mixtures of experts", PROCEEDINGS OF THE NINETEENTH CONFERENCE ON UNCERTAINTY IN ARTIFICIAL INTELLIGENCE, 2002, pages 57 - 64
NEAL, RADFORD M.; GEOFFREY E. HINTON: "Learning in graphical models", 1998, SPRINGER NETHERLANDS, article "A view of the EM algorithm that justifies incremental, sparse, and other variants", pages: 355 - 368
BEAL, M. J.: "Variational Algorithms for Approximate Bayesian Inference", PHD THESIS, 2003, pages 44 - 81
RYOHEI FUJIMAKI; SATOSHI MORINAGA: "Factorized Asymptotic Bayesian Inference for Mixture Modeling", PROCEEDINGS OF THE FIFTEENTH INTERNATIONAL CONFERENCE ON ARTIFICIAL INTELLIGENCE AND STATISTICS (AISTATS, 2012
See also references of EP 3067837A4
HAYARU SHONO ET AL.: "A latent variational approximation method of Total variation for noise reduction", IEICE TECHNICAL REPORT, vol. 111, no. 275, 19 December 2003 (2003-12-19), pages 217 - 222, XP008183078
KENJI FUJIMOTO ET AL.: "Jotai Kukan Model no Hanbun Bayes Suitei", CURRENT ADVANCES IN MATERIALS AND PROCESSES CAMP-ISIJ DAI 156 KAI SHUKI KOEN TAIKAI, vol. 21, no. 2, 1 September 2008 (2008-09-01), pages 1118, 1121, XP008183121
C. BISHOP; SVENSKN M.: "Bayesian hierarchical mixtures of experts", PROCEEDINGS OF THE NINETEENTH CONFERENCE ON UNCERTAINTY IN ARTIFICIAL INTELLIGENCE, 2002, pages 57 - 64
NEAL, RADFORD M.; GEOFFREY E. HINTON: "Learning in graphical models", 1998, SPRINGER NETHERLANDS, article "A view of the EM algorithm that justifies incremental, sparse, and other variants", pages: 355 - 368
BEAL, M. J.: "Variational Algorithms for Approximate Bayesian Inference", PHD THESIS, 2003, pages 44 - 81
RYOHEI FUJIMAKI; SATOSHI MORINAGA: "Factorized Asymptotic Bayesian Inference for Mixture Modeling", PROCEEDINGS OF THE FIFTEENTH INTERNATIONAL CONFERENCE ON ARTIFICIAL INTELLIGENCE AND STATISTICS (AISTATS, 2012
See also references of EP 3067837A4
Attorney, Agent or Firm:
IWAKABE, Fuyuki et al. (JP)
Rock face Fuyuki (JP)
Rock face Fuyuki (JP)
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