Causal inference model construction method
US11281985B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 21, 2019 |
| Grant date | Mar 22, 2022 |
| Priority date | — |
| Expiry date | Jul 31, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F17/18
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A causal inference model construction method is performed using a computer. The computer includes a control unit and a storage unit, and the control unit implements: a result value reception step of reading manufacturing log data acquired in a manufacturing process and an inspection process; a correlation model construction step of constructing a correlation model using the manufacturing log data; a physical model reception step of receiving an input of a physical model; a probability distribution computation step of calculating probability distributions of the correlation model and the physical model; a probability distribution convergence processing step of performing convergence computation on the probability distribution of the correlation model, approximating a result of the convergence computation to the probability distribution of the physical model, and overwriting the correlation model; and a causal inference model holding step of storing a correlation model as a causal inference model in the storage unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.