Title:
PARAMETER ESTIMATING DEVICE, PARAMETER ESTIMATING METHOD, AND PARAMETER ESTIMATING PROGRAM
Document Type and Number:
WIPO Patent Application WO/2020/261447
Kind Code:
A1
Abstract:
The present invention estimates a parameter of a Markov chain model including an unobservable state. An input unit (101) receives input data including a state set of a Markov chain to be estimated, an observable state set, and sensor transition data indicated by a transition between observable states and an initial state of the observable state. An estimating unit (102) optimizes an objective function including an item indicating a degree of coincidence between a transition probability of a first Markov chain which generates the sensor transition data and a transition probability of a second Markov chain generated by a model indicating the Markov chain to be estimated by using a parameter and the observable state set, and estimates the parameter. An output unit (103) outputs the estimated parameter.
Inventors:
KOJIMA MASAHIRO (JP)
KURASHIMA TAKESHI (JP)
MATSUBAYASHI TATSUSHI (JP)
TODA HIROYUKI (JP)
KURASHIMA TAKESHI (JP)
MATSUBAYASHI TATSUSHI (JP)
TODA HIROYUKI (JP)
Application Number:
PCT/JP2019/025472
Publication Date:
December 30, 2020
Filing Date:
June 26, 2019
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
G06N20/00; G06N7/00
Foreign References:
| JP2018195215A | 2018-12-06 |
Attorney, Agent or Firm:
TAIYO, NAKAJIMA & KATO (JP)
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