|発明の名称||MENSTRUAL CYCLE ESTIMATION DEVICE AND MENSTRUAL CYCLE ESTIMATION METHOD|
PROBLEM TO BE SOLVED: To provide a menstrual cycle estimation device for women and a menstrual cycle estimation method for women, which are capable of clearly grasping two-phase characteristics of a body temperature in a menstrual cycle of a subject on the basis of detection data of the body temperature over several days.
SOLUTION: A control unit 5 of a sensor device 1 transfers body temperature detection data D1 detected while a subject H0 is asleep by using a body temperature detection part 3 to an outside processor 11. The processor 11 time serially links the body temperature detection data D1 for several days to generate body temperature data sequences O and uses the body temperature data sequences O to construct a hidden Markov model HMM having two hidden states corresponding to a low temperature phase q1 and a high temperature phase q2 in the menstrual cycle. Thus, the processor 11 operates maximally likely state sequences Q* in which the hidden Markov model outputs the body temperature data sequences O and, on the basis of the state sequences Q*, estimates the two-phase characteristics of the body temperature of the subject H0 for several days when the body temperature has been measured.
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