著者

森 友哉 宇都宮 陽一 田 学軍 奥田 隆史

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌C(電子・情報・システム部門誌) (ISSN:03854221)

巻号頁・発行日

vol.139, no.5, pp.648-657, 2019

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<p>Fog-Cloud computing system has recently attracted much attention. This system has a simple three-tiered hierarchy: Network edge, Fog, and Cloud. Network edge includes IoT (Internet of Things) devices. Fog is localized computing facilities including network devices such as an edge router, a switch and any other. In this system, Fog handles various data processing, which are sensitive to delay, to shorten WAN propagation latency arising from the location of Cloud. However, if the data processing is concentrated on Fog, the delay of the processing and power consumption of the network edge may increase rather than Cloud computing. The reason why is because Fog has more limited resources than Cloud. Therefore, we should decide an appropriate allocation of roles between Fog and Cloud taking the latency of the processing and the power consumption of the network edge into account. In this paper, we consider the design of Fog-Cloud computing taking the latency and cost resulted from the power consumption into account by using a mixed integer linear programming.</p>

著者

安井 一真 宇都宮 陽一 奥田 隆史

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌C(電子・情報・システム部門誌) (ISSN:03854221)

巻号頁・発行日

vol.143, no.12, pp.1145-1153, 2023-12-01 (Released:2023-12-01)

参考文献数

25

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Outdoor play is important for children because it is fun, improves communication, and provides adequate exercise. In addition, the environment and conditions for traditional play have changed due to the coronavirus pandemic, making it necessary to consider new rules of play. In this study, we focus on tag, one of the games, and consider rules that can reduce the differences in physical advantage and disadvantage due to foot speed. In this study, we consider three rules. (1) the “number selection behavior” rule (R1-1), in which the chaser actively pursues the runner who has been the chaser less frequently; (2) the “replacement condition A” (R2-1), in which the replacement condition between the chaser and the runner is multiple touches; and (3) the “replacement condition B” (R2-2), in which the replacement condition between the chaser and the runner is one touch and a rock-paper-scissors victory by the chaser. We analyze the effects of these three conditions on the game of tag using multi-agent simulation.

著者

冨山 侑子 宇都宮 陽一 奥田 隆史

雑誌

第79回全国大会講演論文集

巻号頁・発行日

vol.2017, no.1, pp.815-816, 2017-03-16

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電車において擬似混雑(混雑の偏在)が発生すると,乗客が乗降車できない状況になることがある.この状況を防ぐために,駅員は乗客に車内中央まで移動するように促す.しかし,乗車区間の短い乗客が車内中央まで移動すると,その乗客は降車が困難になる.加えて他の乗客はその乗客のために立ち位置を変更しなければならなくなる.この立ち位置変更は各乗客のストレスを増やすことになる.そこで本研究では,各乗客のストレスを車内での立ち位置に基づいて表し,乗客の最適な立ち位置を明らかにする.そのために,乗客をエージェントとして捉え,混雑時の車内立ち位置選択をエージェントベースドモデルとして表現し,シミュレーションをおこなう.