Invention Application
- Patent Title: CHANGE ANALYSIS SYSTEM, METHOD AND PROGRAM
- Patent Title (中): 变更分析系统,方法与程序
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Application No.: US12372545Application Date: 2009-02-17
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Publication No.: US20090222389A1Publication Date: 2009-09-03
- Inventor: SHOHEI HIDO , TSUYOSHI IDE , HISASHI KASHIMA , HARUNOBU KUBO , HIROFUMI MATSUZAWA
- Applicant: SHOHEI HIDO , TSUYOSHI IDE , HISASHI KASHIMA , HARUNOBU KUBO , HIROFUMI MATSUZAWA
- Applicant Address: US NY Armonk
- Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Current Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Current Assignee Address: US NY Armonk
- Priority: JP2008-49729 20080229
- Main IPC: G06F15/18
- IPC: G06F15/18 ; G06N5/02

Abstract:
Different virtual labels, for example, like +1 and −1, are assigned to two data sets. A change analysis problem for the two data sets is reduced to a supervised learning problem by using the virtual labels. Specifically, a classifier such as logical regression, decision tree and SVM is prepared and is trained by use of a data set obtained by merging the two data sets assigned the virtual labels. A feature selection function of the resultant classifier is used to rank and output both every attribute contributing to classification and its contribution rate.
Public/Granted literature
- US08417648B2 Change analysis Public/Granted day:2013-04-09
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