PROBLEM TO BE SOLVED: To provide a poor physical condition prediction method capable of suppressing the learning of relationship between poor physical condition and its occurrence factor when occurrence prediction of poor physical condition is wrong.;SOLUTION: A poor physical condition prediction method causes a computer to execute processes, the processes comprises: referencing to a storage unit that stores relationship between a poor physical condition and an occurrence factor of the poor physical condition for each type of poor physical condition, to specify a scheduled occurrence date at which the poor physical condition might occur; when no poor physical condition occurs on the scheduled occurrence date, determining whether or not the occurrence factor has changed since the scheduled occurrence date was specified; and if the occurrence factor has been changed, learning the relationship using a learning degree lower than a learning degree in a case of learning the relationship to be executed when the occurrence factor has not changed.;SELECTED DRAWING: Figure 23;COPYRIGHT: (C)2018,JPO&INPIT
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