Title:
DATA PREDICTION DEVICE, METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2019/193981
Kind Code:
A1
Abstract:
The present invention is capable of predicting, with high accuracy, data of a to-be-predicted period. An operation unit 10 accepts higher-dimensional array data representing data of each period, and external information data that is a tensor or a matrix representing external information of each period. A parameter estimation unit 16 executes, under sparse constraints of weighting parameters per rank, a step for decomposing the higher-dimensional array data into the weighted sum of products of a plurality of factor matrices per rank and a step for decomposing the external information data into the weighted sum of products of a plurality of factor matrices per rank. A prediction unit 22 predicts the data of the to-be-predicted period on the basis of the weighting parameters per rank and the plurality of factor matrices per rank obtained with respect to the higher-dimensional array data.
Inventors:
OKAWA MAYA (JP)
TODA HIROYUKI (JP)
KURASHIMA TAKESHI (JP)
TODA HIROYUKI (JP)
KURASHIMA TAKESHI (JP)
Application Number:
PCT/JP2019/011877
Publication Date:
October 10, 2019
Filing Date:
March 20, 2019
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
G06F16/909
Foreign References:
| JP2017220000A | 2017-12-14 | |||
| JP2017076196A | 2017-04-20 | |||
| JP2017016186A | 2017-01-19 |
Attorney, Agent or Firm:
TAIYO, NAKAJIMA & KATO (JP)
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