Rating device, rating manner and program

摘要

P To increase the quality of statistical information while suppressing the amount of information to be collected and cost. PSOLUTION: As for information expressing individual monthly purchase sum collected from a plurality of information provider terminals UT1 to UTn and its average sum is calculated by an average purchase sum calculation part 42, and a standard deviation is calculated by a standard deviation calculation part 44, and the deviation of the individual monthly purchase sum is calculated by a deviation calculation part 44 based ON the calculated average sum and standard deviation, and a reward sum to individual information providers is calculated by a charging information generation part 45 based ON this calculated deviation of the individual monthly purchase sum and a preliminarily prepared charging rule and transmitted to information reception terminals CT1 to CTm. PCOPYRIGHT: (C)2011 and JPO& INPIT