Title:
PROBABILITY CALCULATION DEVICE, PROBABILITY CALCULATION METHOD, AND PROBABILITY CALCULATION PROGRAM
Document Type and Number:
WIPO Patent Application WO/2022/269818
Kind Code:
A1
Abstract:
A probability calculation device according to the present invention calculates, for each target and on the basis of a basic occurrence probability and a conditional occurrence probability, a first fluctuation vector as a vector expressing a fluctuation corresponding to a specified explanatory variable, said calculation being performed in a first fluctuation calculation unit. The targets are classified into clusters as a result of a clustering unit clustering respective fluctuation vectors of the targets. For each cluster, a second fluctuation calculation unit aggregates event occurrence data which corresponds to the targets belonging to said cluster, and calculates a second fluctuation vector as a vector expressing a fluctuation corresponding to a specified explanatory variable for said cluster. For each vector, an integrated calculation unit uses the second fluctuation vector of the cluster to which the target belongs to calculate the event occurrence probability for the target in a case in which the specific explanatory variable serves as a condition.
Inventors:
MAEDA ATSUHIKO (JP)
OBANA KAZUAKI (JP)
KIKUYA YUKIO (JP)
FUKUDA KENICHI (JP)
OBANA KAZUAKI (JP)
KIKUYA YUKIO (JP)
FUKUDA KENICHI (JP)
Application Number:
PCT/JP2021/023834
Publication Date:
December 29, 2022
Filing Date:
June 23, 2021
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
G06Q10/04
Foreign References:
| JP2016042369A | 2016-03-31 | |||
| JP2019108798A | 2019-07-04 | |||
| JP2005284991A | 2005-10-13 |
Attorney, Agent or Firm:
TAIYO, NAKAJIMA & KATO (JP)
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