システム制御情報学会論文誌
Online ISSN : 2185-811X
Print ISSN : 1342-5668
ISSN-L : 1342-5668
30 巻, 7 号
選択された号の論文の4件中1~4を表示しています
論文
  • 大保 武慶, 澤山 智之, 澤山 卓也, 久保田 直行
    2017 年 30 巻 7 号 p. 263-272
    発行日: 2017/07/15
    公開日: 2017/10/15
    ジャーナル オープンアクセス

    The number of drowning incident at home has been increasing steadily over time. The most common cause of the incidents is a situation that produces hemodynamic compromise during bathing. It can heighten the risk of causing a stroke, myocardial infarction, and loss of consciousness. This paper presents an inovative ultrasensitive vibration sensor for detecting viral sign that can measure micro vibration transmitted through a bathtub. Moreover, we propose a neuro-fuzzy system to extract hearbeat and estimate human states during bathing. In the experimental result, we discuss the effectiveness of the proposed system in terms of measuring precision, comparing with a pulse rate meter.

  • Nakata Masaya, Hamagami Tomoki
    2017 年 30 巻 7 号 p. 273-285
    発行日: 2017/07/15
    公開日: 2017/10/15
    ジャーナル オープンアクセス

    The XCSAM classifier system is an approach of evolutionary rule-based machine learning, which evolves rules advocating the highest-return actions at state, resulting in best classification. This paper starts with claiming a limitation that XCSAM still fails to evolutionary generate adequate rules advocating the highest-return actions. Then, under our hypothesis that this limitation is caused from the rule-deletion mechanism of XCSAM, we revisit its rule-deletion strategy in order to promote the evolution of adequate rules. Different from the existing deletion strategy which deletes two rules for each rule-evolution, our deletion strategy is modified to delete more than two rules as necessary. Experimental results on a benchmark classification task validate our modification powerfully works to evolve adequate rules, improving the performance of XCSAM. We further show our modification robustly enables XCSAM to perform well on real world classification task.

  • ―Minimal Compartments of Triglycerides and Non-esterified Fatty Acids
    Yamamoto Noguchi Claudia Cecilia, Furutani Eiko
    2017 年 30 巻 7 号 p. 286-292
    発行日: 2017/07/15
    公開日: 2017/10/15
    ジャーナル オープンアクセス

    In keeping with the recent recognition of the additive impact of dietary fat on postprandial blood glucose (BG) levels in type 1 diabetes mellitus (T1DM), we include a number of physiologically-relevant improvements to a previous conceptual minimal mixed meal model by considering independent signals for gut transit of carbohydrates and dietary fat, and explicit representation of fatty acid spillover in the compartmental representation of non-esterified fatty acids (NEFA) to represent lipid-derived insulin resistance as the complementary increase in triglycerides (TG) and NEFA levels. Simulation results of postprandial plasma lipids and BG excursion compared with clinical data in the literature demonstrate the validity and potential of the minimal mixed meal model proposed.

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