著者
古山 彰一 松澤 照男
出版者
情報処理学会
雑誌
情報処理学会論文誌 : ハイパフォーマンスコンピューティングシステム (ISSN:03875806)
巻号頁・発行日
vol.44, no.SIG1(HPS6), pp.50-57, 2003-01-15

伸縮性領域を用いることで,適応格子法に関する並列計算手法を提案した.本手法を用いることにより,通信量コストを低く抑え,かつ,負荷分散を良好に行うことができた.その結果,一般的に並列計算が難しいこの問題に対して,32PE利用時に73%の高い並列化効率を得ることができた. : Elastic Domain Decomposition Method (DDM) for a parallel Adaptive Mesh Refinement (AMR) Solver is described. To use this method saving a message passing cost, a good load balancing, and a high parallel performances (73% on 32 PEs) were achieved.
著者
池原 優斗
出版者
日本科学哲学会
雑誌
新進研究者 Research Notes
巻号頁・発行日
vol.6, 2023

This research proposes Actor-Network Theory (ANT) as a methodology for organizing and analyzing problems involving "artificial agents," which are artifacts that induce humans to experience them as a certain kind of agent, such as AI and robots. ANT makes it possible to handle the boundaries of the categories of human, “artificial agent” and “other artifacts” in a dynamic and flexible way. This enables effective organization and analysis of problems involving “artificial agents.” After presenting an overview and discussion of ANT, this paper will present how ANT can be used concretely to describe and analyze problems involving "artificial agents" through an analysis that applies ANT to the problem of AI image generators.
著者
山田 裕巳 Yamada Hiromi
出版者
Waseda University
巻号頁・発行日
2003-03

制度:新 ; 文部省報告番号:乙1773号 ; 学位の種類:博士(工学) ; 授与年月日:2003/3/6 ; 早大学位記番号:新3561
著者
Cruz Rambaud Salvador Munoz Torrecillas Maria J. Takahashi Taiki
出版者
Frontiers Media
雑誌
Frontiers in pharmacology (ISSN:16639812)
巻号頁・発行日
vol.8, pp.416, 2017-06-29
被引用文献数
11

The aim of this paper is to find a suitable discount function able to describe the progression of a certain addiction or disease under treatment as a discounting process. In effect, a certain indicator related to a disease decays over time in a manner which is mathematically similar to the way in which discounting has been modeled. We analyze the discount functions observed in experiments which study addictive and other problematic behaviors as well as some alternative hyperbola-like discount functions in order to fit the patience exhibited by the subject after receiving the treatment. Additionally, it has been experimentally found that people with addiction display high rates of discount (impatience) and preference reversals (dynamic inconsistency). This excessive discounting must be correctly modeled by a suitable discount function, otherwise, it can become a trans-disease process underlying addiction and other disorders. The (generalized) exponentiated hyperbolic discount function is proposed to describe the progression of a disease with respect to the treatment, since it maintains the property of inconsistency by exhibiting a decreasing discount rate after an initial period in which the opposite occurs.
著者
鈴木 茂嗣
出版者
京都大学 (Kyoto University)
巻号頁・発行日
1980-03-24

新制・論文博士