Information processing device, information processing method, and information processing program

An information processing method performed by an information processing device comprising at least one memory configured to store computer program code, and at least one processor configured to access said at least one memory and operate as instructed by said computer program code to perform the information processing method, the information processing method comprising:

• obtaining an equation of a function of date, the function approximating a relationship between dates and body temperatures with a local minimum value and a local maximum value, the body temperatures being obtained based on actual measurements during at least one menstrual cycle;
• determining a low-temperature-phase reference body temperature, based on a first group of body temperatures of a first group of days identified based on a date corresponding to the local minimum value in the function defined by the obtained equation;
• determining a high-temperature-phase reference body temperature, based on a second group of body temperatures of a second group of days identified based on a date corresponding to the local maximum value in the function defined by the obtained equation;
• accurately estimating an ovulation date in a current menstrual cycle, based on a determination reference body temperature set at a value between the determined low-temperature-phase reference body temperature and the determined high-temperature-phase reference body temperature and on measurement data including the body temperatures and dates associated with the body temperatures;
• and
• sending the accurately-estimated ovulation date to a user terminal.

A non-transitory computer-readable medium storing a computer program code, the computer program code causing an information processing device comprising at least one processor to access said non-transitory computer-readable medium and operate as instructed by said computer program code to:

• obtain an equation of a function of date, the function approximating a relationship between dates and body temperatures with a local minimum value and a local maximum value, the body temperatures being obtained based on actual measurements during at least one menstrual cycle;
• determine a low-temperature-phase reference body temperature, based on a first group of body temperatures of a first group of days identified based on a date corresponding to the local minimum value in the function defined by the obtained equation;
• determine a high temperature-phase reference body temperature, based on a second group of body temperatures of a second group of days identified based on a date corresponding to the local maximum value in the function defined by the obtained equation;
• accurately estimate an ovulation date in a current menstrual cycle, based on a determination reference body temperature set at a value between the determined low-temperature-phase reference body temperature and the determined high-temperature-phase reference body temperature and on measurement data including the body temperatures and dates associated with the body temperatures;
• and
• send the accurately-estimated ovulation date to a user terminal.