Patent ID: 9646265
Date: 2017-05-09
CPC Classifications: G06N,G06Q,G16H

Claim:
1. A model updating method that is executed by a computer, the model updating method comprising: by using the computer, calculating a score that indicates a degree of normality or abnormality of each of a plurality of pieces of data by using each of the plurality of pieces of data as a judgment model; by using the computer, predicting as a predicted condition whether each of the plurality of pieces of data is normal or abnormal according to the score; by using the computer, first judging whether or not the predicted condition is correct for each of the plurality of pieces of data; by using the computer, calculating an accuracy rate for the predicted conditions of a top specified number of pieces of the data in order of decreasing abnormality as indicated by the score when the plurality of pieces of data are arranged in a specified order of score, the accuracy rate being calculated by excluding from the plurality of pieces of data pieces of data that are obtained after measures have already been taken for the plurality of pieces of data; and by using the computer, second judging whether or not it is necessary to update the judgment model according to the accuracy rate.