METHOD AND APPARATUS FOR DERIVATION OF OPTIMIZATION COUPLINGRULE

摘要

PROBLEM TO BE SOLVED: To detect at high speed the correlation between the data having both numerical and specific (0-1) attributes by dividing a numerical attribute axis into plural sections, counting the number of data included in every divided section and also the number of data on the (0-1) attribute and then performing a specific processing. SOLUTION: A bucket processing part 1510 divides a numerical attribute axis corresponding to the numerical attribute into plural sections and counts the number of data and the number of data having the (0-1) attributes equal to 1 included in every divided section. A plane constitution processing part 1520 virtually constitutes a plane by means of a 1st axis corresponding to the total number of data on every section and a 2nd axis corresponding to the total number of data having the (0-1) attribute equaling to 1 on every section. Then the part 1520 virtually plots the points corresponding to the values to the sections on the plane. Furthermore, a largest tilt line extraction part 1530 extracts a pair of points having their connection line of the largest tilt among those pairs of points having intervals larger than T.N (T: rate, N: total data number) set toward the 1st axis and then outputs the corresponding section between the extracted pair of points.