US 12,001,440 B2
Prediction device, prediction method, and prediction program
Daisuke Sato, Tokyo (JP); Tatsushi Matsubayashi, Tokyo (JP); and Hiroyuki Toda, Tokyo (JP)
Assigned to NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo (JP)
Appl. No. 17/621,228
Filed by NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo (JP)
PCT Filed Jun. 26, 2019, PCT No. PCT/JP2019/025473
§ 371(c)(1), (2) Date Dec. 20, 2021,
PCT Pub. No. WO2020/261448, PCT Pub. Date Dec. 30, 2020.
Prior Publication US 2022/0350801 A1, Nov. 3, 2022
Int. Cl. G06F 16/30 (2019.01); G06F 16/2458 (2019.01); G06N 20/00 (2019.01)
CPC G06F 16/2477 (2019.01) [G06F 16/2465 (2019.01); G06N 20/00 (2019.01)] 20 Claims
OG exemplary drawing
 
1. A prediction device comprising circuit configured to execute operations comprising:
predicting first prediction values for target ranges of respective models, based on respective pieces of spatio-temporal observation data including observation values for respective observation locations and respective observation times observed for a given time period and the respective models for predicting variations of the pieces of spatio-temporal observation data for the respective target ranges defined for at least one of an observation location or a period;
extracting, based on residuals between the respective pieces of spatio-temporal observation data being observed and the models corresponding to the respective pieces of spatio-temporal observation data based on the pieces of spatio-temporal observation data and the models, the respective pieces of spatio-temporal observation data with residuals based on a threshold value, as spatio-temporal residual data;
predicting, based on the spatio-temporal residual data, second prediction values for the target ranges corresponding to the spatio-temporal residual data in accordance with a predetermined prediction technique;
synthesizing the first prediction values and the second prediction values to generate output prediction values; and
outputting the output prediction values.