MATCHING DEVICE, MATCHING METHOD AND MATCHING PROGRAM

摘要

Provided is a matching device capable of improving the accuracy of the degree of similarly in the calculation of the degree of similarly between data sets. Element selection means 41 selects elements corresponding to each other between a first vector including a plurality of elements determined based on first data and a second vector including a plurality of elements determined based on second data. Similarity degree calculation means 42 calculates a score of the degree of similarly between the first data and the second data from the elements selected from the first vector and the second vector. Score correction means 43 corrects the score calculated by the similarity degree calculation means 42 so that the increment of the score increases with the increase in the amount of data used for the calculation of the degree of similarly.