DAMAGE RATE CURVE CREATION METHOD, DAMAGE RATE CURVE CREATION DEVICE, AND PROGRAM

Title:

DAMAGE RATE CURVE CREATION METHOD, DAMAGE RATE CURVE CREATION DEVICE, AND PROGRAM

Document Type and Number:

WIPO Patent Application WO/2022/013974

Kind Code:

A1

Abstract:

A damage rate curve creation method according to the present invention comprises: a step for creating a plurality of machine learning models for predicting and outputting first damage rates of pipe conduits for respective characteristics of the pipe conduits, by using first pipe conduit damage data which contains information pertaining to the presence or absence of earthquake damage and the characteristics of the pipe conduits; a step for extracting a feature with a high contribution to the prediction, for each of the machine learning models; a step for analyzing a change in the first damage rate relative to a change in the feature; a step for specifying, as an extremal value, the value of the feature at the inflection point of the change in the first damage rate, and extracting, as second pipe conduit damage data from the first pipe conduit damage data, data having the value of the feature which differs by not more than a threshold value from the extremal value; and a step for creating a damage rate curve which indicates a second damage rate on the basis of the second pipe conduit damage data.

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Inventors:

ITO AKIRA (JP)
OKUTSU MASARU (JP)

Application Number:

PCT/JP2020/027517

Publication Date:

January 20, 2022

Filing Date:

July 15, 2020

Export Citation:

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Assignee:

NIPPON TELEGRAPH & TELEPHONE (JP)

International Classes:

G01V1/00; G01M99/00; G06Q50/06

Foreign References:

JP2003057356A	2003-02-26
JP2017150193A	2017-08-31
JPH10253000A	1998-09-22
CN106022518A	2016-10-12
US6556924B1	2003-04-29
JP2009086706A	2009-04-23

Other References:

SAITAKE, RYOSUKE; ARAI, SACHIYO: "1M3-OS-24b-4 Online Updating Prediction of Damaged Parts via Utilizing on-the spot Reports", PROCEEDINGS OF THE 29TH ANNUAL CONFERENCE OF THE JAPANESE SOCIETY FOR ARTIFICIAL INTELLIGENCE (JSAI); HAKODATE, JAPAN; MAY 30 - JUNE 2, 2015, JAPANESE SOCIETY FOR ARTIFICIAL INTELLIGENCE, JP, vol. 29, 2015 - 2 June 2015 (2015-06-02), JP, pages 1 - 4, XP009534204, DOI: 10.11517/pjsai.JSAI2015.0_1M3OS24b4

Attorney, Agent or Firm:

SUGIMURA Kenji (JP)

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