Information processing apparatus, reference value determination method, and program

A reference value determination method comprising the steps of:

• obtaining history information about predetermined operation, the history information including identification information and time information at which a predetermined operation is performed by a classification subject attached with the unique identification information or time information at which a predetermined operation is performed on the classification subject, the identification information and the time information being associated with each other;
• and
• calculating operation number information based on the obtained history information, the operation number information including the number of operations performed by the single classification subject within a predetermined period or the number of operations performed on the single classification subject within the predetermine period, the operation number information further including the number of classification subjects having the same number of operations, the number of operations and the number of classification subjects being associated with each other, and determining a reference value based on the operation number information, the reference value being the number of operations serving as a basis for classifying the classification subjects into two groups.

A program for causing a computer to realize:

• a history information obtaining function for obtaining history information about predetermined operation, the history information including identification information and time information at which a predetermined operation is performed by a classification subject attached with the unique identification information or time information at which a predetermined operation is performed on the classification subject, the identification information and the time information being associated with each other;
• and
• a reference value determining function for calculating operation number information based on the obtained history information, the operation number information including the number of operations performed by the single classification subject within a predetermined period or the number of operations performed on the single classification subject within the predetermine period, the operation number information further including the number of classification subjects having the same number of operations, the number of operations and the number of classification subjects being associated with each other, and determining a reference value based on the operation number information, the reference value being the number of operations serving as a basis for classifying the classification subjects into two groups.