| 发明名称 |
CORRELATION RULE ANALYSIS APPARATUS AND CORRELATION RULE ANALYSIS METHOD |
| 摘要 |
A correlation rule analysis apparatus extracts data dependence relation and restriction conditions of database columns of a database from data stored in the database. The correction rule analysis apparatus includes a correlation rule extraction part which extracts information of simultaneous appearance relation of data among plural columns as correlation rules from inputted database table data, a correlation rule summarization part which summarizes or puts the extracted correlation rules together on the basis of specific community and a summarization result appropriateness judgment part which calculates usefulness indexes as the data dependence relation and the restriction conditions from appearance frequency and combination in the summarized correlation rules. |
| 申请公布号 |
US2016004968(A1) |
申请公布日期 |
2016.01.07 |
| 申请号 |
US201514614006 |
申请日期 |
2015.02.04 |
| 申请人 |
HITACHI, LTD. |
发明人 |
HASHIMOTO Yasunori;OOSHIMA Keishi;DANNO Hirofumi;MIBE Ryota;YAMAGUCHI Kiyoshi |
| 分类号 |
G06N5/02 |
主分类号 |
G06N5/02 |
| 代理机构 |
|
代理人 |
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| 主权项 |
1. A correlation rule analysis apparatus which extracts at least one of data dependence relation and restriction conditions of columns of a database from data stored in the database, comprising:
correlation rule extraction means to extract information of simultaneous appearance relation of data among plural columns as correlation rules from data of a database table in which data to be analyzed are stored; correlation rule summarization means to summarize the extracted correlation rules on the basis of specific community; and summarization result appropriateness judgment means to calculate usefulness indexes as the data dependence relation and the restriction conditions from appearance frequency and combination in the summarized correlation rules. |
| 地址 |
Tokyo JP |
