Pattern Analysis of Daily Activity and Intervention Acceptability Using Nonnegative Multiple Tensor Factorization with Convolutive Transformation Matrix

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  • 畳み込み変換行列を導入した非負値複合テンソル分解による日常行動と介入許容パターンの分析

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In order to improve people's lifestyles to prevent lifestyle-related diseases, it is important to understand not only the daily schedule but also the acceptability of interventions, such as taking dinner 30 minutes early. In this paper, we propose a new nonnegative tensor factorization method that can analyze collected activity logs and acceptability logs. The proposed method factorizes multiple tensors simultaneously while adopting convolutive transformation matrix; it enable us to extract activity patterns and also to grasp correspondence of appearance time of each pattern. We show the result of the analysis using the proposed method.

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