Title:
検出プログラム、検出方法および検出装置
Document Type and Number:
Japanese Patent JP7040065
Kind Code:
B2
Abstract:
A detection device adds, with regard to each of a plurality of sets of time-series data including a plurality of items, a time-shift term to at least any of the plurality of items included in each of the plurality of sets of time-series data. The detection device generates a plurality of attractors from the plurality of sets of time-series data to which the time-shift term has been added. The detection device generates a plurality of Betti sequences from each of the plurality of attractors by executing a persistent homology transformation on each of the plurality of attractors, each of the plurality of Betti sequences indicating a correspondence relationship between a Betti number and a scale value has been used for the persistent homology transformation. The detection device detects a state change in the plurality of sets of time-series data based on a time change in the plurality of Betti sequences.
Inventors:
Todoroki wise
Yuhei Umeda
Ken Kobayashi
Yuhei Umeda
Ken Kobayashi
Application Number:
JP2018015849A
Publication Date:
March 23, 2022
Filing Date:
January 31, 2018
Export Citation:
Assignee:
富士通株式会社
International Classes:
G06N20/00
Domestic Patent References:
| JP2017097643A | ||||
| JP2009512031A | ||||
| JP2010061450A |
Foreign References:
| US8818923 |
Attorney, Agent or Firm:
Sakai International Patent Office