| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve the efficiency of work for extracting columns having a correspondence relation between two pieces of two-dimensional data. <P>SOLUTION: A delimitation dividing part 11 selects a column pair to be an analysis target in migration source data, and a correlation rule calculating part 12 selects a column pair to be an analysis target in migration destination data, calculates a support degree and certainty in each row in the column pair of the migration source data, and calculates a support degree and certainty in each row for each column pair of the migration destination data. A correlation differential value calculating part 13 performs a difference calculation of a support degree and certainty between rows in the migration source data, and performs a difference calculation of a support degree and certainty between rows in each column pair in the migration destination data, a comparison calculating part 14 performs a difference calculation between a differential value in the migration source data and a differential value in the migration destination data, and a determining part 15 determines a column pair of the migration destination corresponding to the column pair of the migration source on the basis of a result of the difference calculation. <P>COPYRIGHT: (C)2012,JPO&INPIT |
