INVESTIGATION SYSTEM AND INVESTIGATION METHOD

PROBLEM TO BE SOLVED: To reduce a processing load after acquiring an investigation result. SOLUTION: An investigation system 10 specifies covariate items as common attribute items among attribute items showing the attributes of investigation candidates in reference investigation and correction target investigation, and calculates first tendency scores showing the probability that the investigation candidates participates in the correction target investigation in the reference investigation, and second tendency scores showing the probability that the investigation candidates participates in the correction target investigation in the correction target investigation, based on the values of the covariate items. Furthermore, the investigation system 10 selects the investigation candidates in the production investigation from the investigation candidates in the correction target investigation so that the distribution of the second tendency scores of the investigation candidates in the production investigation can approximate to the distribution of the first tendency scores based on the first tendency scores and the second tendency scores. COPYRIGHT: (C)2011,JPO&INPIT