Title:
NUMBER-OF-CLUSTERS SETTING DEVICE, NUMBER-OF-CLUSTERS SETTING METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2022/168279
Kind Code:
A1
Abstract:
A number-of-clusters setting device according to one embodiment of the present invention is characterized by having: an input unit for inputting time-series data that indicates a system state, at each time point, of a system composed of one or more devices and that is composed of data having a dimension indicated by the number of devices constituting the system, a dimension indicated by the number of devices × the number of items indicating a device state, or a dimension indicated by the number of devices × the number of items × a predetermined time window length; a clustering unit that repeats clustering of data constituting the time-series data while counting up the number of clusters from 1 or 2; a cluster-related index calculation unit that calculates a predetermined index by using a result of the clustering; a threshold value determination unit that determines whether or not the index is less than a preset threshold value; and an output unit that, upon determination that the index is less than the threshold value, outputs the present number of clusters - 1 as the number of clusters to be set for an unsteady fluctuation detection process using a clustering process.
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Inventors:
TAKAHASHI SHOKO (JP)
IKEGAMI DAISUKE (JP)
IKEGAMI DAISUKE (JP)
Application Number:
PCT/JP2021/004400
Publication Date:
August 11, 2022
Filing Date:
February 05, 2021
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
G06N20/00
Foreign References:
| JP2016054435A | 2016-04-14 |
Other References:
TATSUMI, KOHEI ET AL.: "A Study of the Anomaly Detection Method Characteristics based on the Traffic Parameter Clustering", IPSJ SIG TECHNICAL REPORTS 2013 APRIL, 15 April 2013 (2013-04-15)
ASHIDA, KOKI ET AL.: "Building of singing database include scat and analysis of singing expression", LECTURE PROCEEDINGS CD- ROM OF THE 2020 SPRING MEETING OF THE ACOUSTICAL SOCIETY OF JAPAN, 2 March 2020 (2020-03-02), pages 1133 - 1136
OGURA, TATSUYA ET AL.: "Extracting appliance price determination factors in Electronic Commerce", DOCUMENTS OF RESEARCH GROUP OF THE INSTITUTE OF ELECTRICAL ENGINEERING OF JAPAN, 1 November 2017 (2017-11-01), pages 27 - 32
IZUMI, KEITA ET AL.: "The Feelings Judgment System Using the Electroencephalogram Knowledge Base", FIT2011 LECTURE PROCEEDINGS OF 10TH FORUM ON INFORMATION TECHNOLOGY, vol. 3, 22 August 2011 (2011-08-22), pages 655 - 656
ASHIDA, KOKI ET AL.: "Building of singing database include scat and analysis of singing expression", LECTURE PROCEEDINGS CD- ROM OF THE 2020 SPRING MEETING OF THE ACOUSTICAL SOCIETY OF JAPAN, 2 March 2020 (2020-03-02), pages 1133 - 1136
OGURA, TATSUYA ET AL.: "Extracting appliance price determination factors in Electronic Commerce", DOCUMENTS OF RESEARCH GROUP OF THE INSTITUTE OF ELECTRICAL ENGINEERING OF JAPAN, 1 November 2017 (2017-11-01), pages 27 - 32
IZUMI, KEITA ET AL.: "The Feelings Judgment System Using the Electroencephalogram Knowledge Base", FIT2011 LECTURE PROCEEDINGS OF 10TH FORUM ON INFORMATION TECHNOLOGY, vol. 3, 22 August 2011 (2011-08-22), pages 655 - 656
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
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