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SLEEP QUALITY ASSESSMENT SYSTEM, SLEEP QUALITY MODEL CREATION PROGRAM, AND SLEEP QUALITY ASSESSMENT PROGRAM
SLEEP QUALITY ASSESSMENT SYSTEM, SLEEP QUALITY MODEL CREATION PROGRAM, AND SLEEP QUALITY ASSESSMENT PROGRAM
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机译：睡眠质量评估系统，睡眠质量模型创建程序和睡眠质量评估程序
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摘要
Provided is a sleep quality assessment system (100) comprising: a sound recording unit (110) for recording sounds during sleep as sleep sounds; an extraction unit (120) for extracting from the sleep sounds a plurality of instances of feature information; an analysis unit (130) for computing feature vectors from the feature information; a classification unit (140) for classifying the feature vectors into a plurality of types; a probability model generation unit (150) for generating a first model reflecting a sleep sound in a first state and a second model reflecting a sleep sound in a second state by subjecting the feature vectors to a hidden Markov model-based process; a likelihood computation unit (170) for computing a first likelihood obtained by applying the feature vectors classified based on a sleep sound (210) to be assessed to the first model and a second likelihood obtained by applying the feature vectors classified based on the sleep sound (210) to be assessed to the second model; and an assessment unit (180) for assessing the quality of sleep on the basis of the computed likelihoods.
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