Information processing method and computer-readable recording medium storing information processing program

A non-transitory computer-readable recording medium storing an information processing program causing a computer to execute a process of:

• acquiring a plurality of records that each represents an option chosen in a past among a plurality of options;
• for each record of one or more records that correspond to a choosing subject that has recognized a first option among the acquired plurality of records, setting a first value that represents that a choosing subject definitely belongs to a first class in which the first option has been recognized, as an expected value of a probability that a choosing subject belongs to the first class;
• for each record of remaining records different from the one or more records among the acquired plurality of records, setting, as the expected value, a second value that represents that a choosing subject probabilistically belongs to the first class based on a reference value of a probability that a choosing subject belongs to the first class and a mathematical formula that represents an effect of each option of the plurality of options;
• and
• learning the reference value and a parameter included in the mathematical formula based on each record of the acquired plurality of records and the expected value set for each record of the acquired plurality of records.