CORRELATION RULE ANALYSIS APPARATUS AND CORRELATION RULE ANALYSIS METHOD
First Claim
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.
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Abstract
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.
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9 Claims
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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:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification