Presentation 2004/3/12
A Statistical Identification Method for Environmental Models of Mobile Robots
Katsuyoshi KANEMOTO, Junichiro YOSHIMOTO, Shin ISHII,
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Abstract(in English) For controlling mobile robots within the framework of statistical inference, precise models of state transition and observation processes are crucial. Although these models can be obtained if the robot makes use of external information, such a setting makes the robot's applicability narrow and the implementation costly. In this study, we propose a method to identify these models from the robot's own observation. In this method, an environment is formulated as a parameterized probabilistic model in consideration of a geometric property and sensory non-linearity. The unknown parameters are determined based on the maximum likelihood estimation. We evaluated the performance of the proposed method using synthetic and real datasets. The results showed that the method successfully obtained the environmental model with a fairly good precision only from the robot's own sensory information.
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Keyword(in English) Mobile robots / Probabilistic model / System Identification / EM algorithm / Particle Filter
Paper # NC2003-204
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Committee NC
Conference Date 2004/3/12(1days)
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Registration To Neurocomputing (NC)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Statistical Identification Method for Environmental Models of Mobile Robots
Sub Title (in English)
Keyword(1) Mobile robots
Keyword(2) Probabilistic model
Keyword(3) System Identification
Keyword(4) EM algorithm
Keyword(5) Particle Filter
1st Author's Name Katsuyoshi KANEMOTO
1st Author's Affiliation Graduate School of Information Science, Nara Institute of Science and Technology()
2nd Author's Name Junichiro YOSHIMOTO
2nd Author's Affiliation CREST, Japan Science and Technology Agency
3rd Author's Name Shin ISHII
3rd Author's Affiliation Graduate School of Information Science, Nara Institute of Science and Technology
Date 2004/3/12
Paper # NC2003-204
Volume (vol) vol.103
Number (no) 734
Page pp.pp.-
#Pages 6
Date of Issue