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:
Nov. 19, 2024
Filed:
Sep. 02, 2020
Nec Corporation, Tokyo, JP;
Yuyang Dong, Tokyo, JP;
Masafumi Oyamada, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
Input meansreceives an input of a size-specific correlation index. Index specification meansspecifies the size-specific correlation index to be used for searching among size-specific correlation indexes based on a predetermined threshold of the number of record pairs determined to be couplable when coupling a base table including a target column and an external table. Candidate column search meanssearches for a column whose distance to the target column is equal to or less than a distance threshold from the external table by using the specified size-specific correlation index, calculates a correlation value indicating the degree of correlation between the found column and the target column, and searches for a column whose correlation value is equal to or larger than a correlation value threshold as a candidate column.