ABNORMALITY DEGREE ESTIMATION DEVICE, ABNORMALITY DEGREE ESTIMATION METHOD, AND PROGRAM

Title:

ABNORMALITY DEGREE ESTIMATION DEVICE, ABNORMALITY DEGREE ESTIMATION METHOD, AND PROGRAM

Document Type and Number:

WIPO Patent Application WO/2020/255299

Kind Code:

A1

Abstract:

The present invention provides an abnormality degree estimation device with which it is possible to appropriately determine normal data with low appearance frequency to be normal. This abnormality degree estimation device includes an estimation unit for estimating the abnormality degree of an acoustic signal using an abnormality degree estimation model that is optimized using a set of normal sounds, and that is optimized such that a difference between an abnormality degree in a normal sound with high appearance frequency and an abnormality degree in a normal sound with low appearance frequency becomes minimum.

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Inventors:

KOIZUMI YUMA (JP)
SAITO SHOICHIRO (JP)
HARADA NOBORU (JP)

Application Number:

PCT/JP2019/024312

Publication Date:

December 24, 2020

Filing Date:

June 19, 2019

Export Citation:

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Assignee:

NIPPON TELEGRAPH & TELEPHONE (JP)

International Classes:

G10L25/51

Domestic Patent References:

WO2017171051A1

2017-10-05

Foreign References:

JP2017090606A	2017-05-25
JP2012181280A	2012-09-20
JP2006300896A	2006-11-02
JPH07219581A	1995-08-18

Attorney, Agent or Firm:

NAKAO, Naoki et al. (JP)

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