ESTIMATION APPARATUS, ESTIMATION METHOD, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM

• Main Authors: OKAMOTO, Hiromi, SATO, Masahiko, FUJII, Hideyuki, JINGUU, Yoshiyuki, MITOMO, Nobuhiro, TAKAMI, Go
• Format: Patent
• Language: English
• Published: 21.12.2023
• Subjects: CALCULATING; COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS; COMPUTING; COUNTING; PHYSICS

An estimation apparatus is provided, including an abnormality index acquisition unit for acquiring, as an abnormality index, an evaluation index output by an evaluation model according to state data being input when an abnormality occurs in a facility, among the state data indicating a state of the facility when an operation model is used to control a control target, the operation model being generated by reinforcement learning where an output of the evaluation model trained by machine learning to output the evaluation index in accordance with the state of the facility is set as at least a part of a reward, and outputting an action in accordance with the state of the facility; an estimation unit for estimating which of the evaluation model or the operation model is a main cause of the abnormality; and an output unit for executing an output in accordance with a result of the estimate.