公开(公告)号：US20240095548A1

公开(公告)日：2024-03-21

申请号：US18275709

申请日：2022-04-27

Applicant: SK GAS CO., LTD.

Inventor： Ung Gi HONG ,  Sung Joo YEO ,  Seung Hwan KONG ,  Min Ho KIM ,  Hae Bin SHIN ,  Hee Dong CHOI ,  Young Gook KYE

IPC: G06N5/022

CPC classification number: G06N5/022

Abstract: A system for predicting process changes by using key factors in a commercial chemical process, includes: a key factor extraction and individual tag importance backup unit that extracts yield key factors by calculating the importance of each tag, and backs up importance data for each tag; and a yield prediction model training and yield prediction performing unit that performs yield prediction model training by using the importance of each tag accumulated in the key factor extraction and individual tag importance backup unit, and performs yield prediction so as to output a yield prediction result, evaluates performance, and selects an optimal prediction model.

公开(公告)号：US20240104464A1

公开(公告)日：2024-03-28

申请号：US18275676

申请日：2022-04-27

Applicant: SK GAS CO., LTD.

Inventor： Ung Gi HONG ,  Sung Joo YEO ,  Seung Hwan KONG ,  Min Ho KIM ,  Hae Bin SHIN ,  Hee Dong CHOI ,  Young Gook KYE

IPC: G06Q10/0631 ,  G06Q10/0639 ,  G06Q50/04

CPC classification number: G06Q10/06316 ,  G06Q10/06393 ,  G06Q50/04

Abstract: A system selecting a process key factor in a commercial chemical process, includes: a data extraction unit that extracts tag data in units of a set period; an outlier discrimination unit that discriminates and aggregates outliers by tag by using an outlier extraction reference master; an outlier processing unit that generates an input mart draft excluding the outliers; a derived variable generation unit that generates derived variables for each tag, and generates an advanced input mart having the derived variable added thereto; a yield calculation unit that backs up the result of calculation of a yield by realizing a target value via exclusion and correction of the outliers; and a key factor extraction unit that extracts a yield key factor by calculating importance of each tag, and backs up importance data for each tag.