The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 07, 2002
Filed:
Nov. 05, 1998
Akitoshi Mitsuishi, Tokyo, JP;
Yasushi Obata, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A candidate-itemset generating unit generates a candidate-itemset composed of at least one candidate item to be included in the left hand side or the right hand side of the association rule. A candidate-itemset verifying unit selects itemsets having frequencies (appearing times in the database) more than the minimum frequency out of the candidate-itemsets, as large-itemsets. A candidate rule generating unit generates candidate association rules based on a large-itemset of k−1 long and a large-itemset of 1 long. A chi-square testing unit generates an association rule set based on the candidate association rules by performing a chi-square test in which a &khgr; statistics and a significant level are used as parameters.