Title:
DETECTING DEVICE, DETECTING METHOD, AND DETECTING PROGRAM
Document Type and Number:
WIPO Patent Application WO/2019/244930
Kind Code:
A1
Abstract:
An acquiring unit (15a) acquires data output by a sensor; a learning unit (15b) includes an encoder and a decoder, and in a generation model representing a probability distribution of data, replaces a prior distribution of the encoder with a marginalized posterior distribution that has been marginalized by the encoder, uses a density ratio between a standard Gaussian distribution and the marginalized posterior distribution to approximate a Kullback-Leibler divergence, and uses the data to learn the generation model; and a detecting unit (15c) uses the learned generation model to estimate a probability distribution of the data, and if the estimated occurrence probability of newly acquired data is lower than a predetermined threshold, detects the same as abnormal.
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Inventors:
TAKAHASHI HIROSHI (JP)
IWATA TOMOHARU (JP)
YAMANAKA YUKI (JP)
YAMADA MASANORI (JP)
YAGI SATOSHI (JP)
IWATA TOMOHARU (JP)
YAMANAKA YUKI (JP)
YAMADA MASANORI (JP)
YAGI SATOSHI (JP)
Application Number:
PCT/JP2019/024297
Publication Date:
December 26, 2019
Filing Date:
June 19, 2019
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
G06Q10/04; G08B31/00; H04Q9/00; H04Q9/02
Domestic Patent References:
| WO2017094267A1 | 2017-06-08 | |||
| WO2017168870A1 | 2017-10-05 |
Foreign References:
| JP2017027145A | 2017-02-02 |
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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