Causal Relation Model Verification Method and System and Failure Cause Extraction System

• Main Authors: IMAZAWA, Kei, HORIWAKI, Kazuki
• Format: Patent
• Language: English
• Published: 25.10.2018
• Subjects: CALCULATING; COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS; COMPUTING; CONTROL OR REGULATING SYSTEMS IN GENERAL; CONTROLLING; COUNTING; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS; PHYSICS; REGULATING

A system is provided in which a causal relation model acquired according to a manufacturing process data is efficiently used and verification according to domain knowledge is easily performed. There is provided a causal relation model verification method in an information processing device which includes an input device, a display device, a processing device, and a storage device. In the method, a first step is performed in which quality data which is an evaluation result of a resulting product, monitor data which indicates a parameter in a case where the resulting product is generated, and domain knowledge which indicates a mutual relation between the quality data and the monitor data are acquired from the input device or the storage device. In addition, a second step is performed in which the processing device constructs the causal relation model which defines a relation between nodes by setting the quality data and the monitor data to the nodes, using a causal relation model construction condition, which is acquired from the input device or the storage device. In addition, a third step is performed in which at least one of a comparison processing performed by the processing device and a comparison display performed by the display device is performed on the causal relation model and the domain knowledge.