Control system and control method

A control method executed in a control system comprising a control apparatus for controlling an object to be controlled, comprising:

• a step of generating a dataset comprising temporal changes in one or more input values for each unit section;
• a step of generating feature quantity data on the basis of the dataset;
• a step of calculating a score indicating a degree of deviation of the feature quantity data from learning data, by referring to the learning data comprising feature quantity data labeled with a specific class, wherein the feature quantity data and the score are output as compression results of the dataset;
• and
• a step of selecting pattern data corresponding to a class determined according to the score contained in the compression result by referring to pattern data for each class prepared in advance, and after adjusting the pattern data using the feature quantity data contained in the compression results, restoring the pattern data as a temporal change in the dataset corresponding to the compression results.