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Wyszukujesz frazę "Hayashida, T." wg kryterium: Autor

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    Wyświetlanie 1-4 z 4
    Tytuł:
    Artificial adaptive agent model characterized by learning and fairness in the ultimatum games
    Autorzy:
    Hayashida, T.
    Nishizaki, I.
    Katagiri, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/308565.pdf
    Data publikacji:
    2007
    Wydawca:
    Instytut Łączności - Państwowy Instytut Badawczy
    Tematy:
    oxidation
    kinetics
    modeling
    silicon
    silicon-germanium
    Opis:
    This paper examines the result of the experimental research on the ultimatum games through simulation analysis. To do so, we develop agent-based simulation system imitating the behavior of human subjects in the laboratory experiment by implementing a learning mechanism involving a concept of fairness. In our agent-based simulation system, mechanisms of decision making and learning are constructed on the basis of neural networks and genetic algorithms.
    Źródło:
    Journal of Telecommunications and Information Technology; 2007, 4; 36-44
    1509-4553
    1899-8852
    Pojawia się w:
    Journal of Telecommunications and Information Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Computational Methods for Two-Level 0-1 Programming Problems through Distributed Genetic Algorithms
    Autorzy:
    Niwa, K.
    Hayashida, T.
    Sakawa, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/309162.pdf
    Data publikacji:
    2010
    Wydawca:
    Instytut Łączności - Państwowy Instytut Badawczy
    Tematy:
    distributed genetic algorithm
    Stackelberg solution
    two-level 0-1 programming problem
    Opis:
    In this paper, we consider a two-level 0-1 programming problem in which there is not coordination between the decision maker (DM) at the upper level and the decision maker at the lower level. We propose a revised computational method that solves problems related to computational methods for obtaining the Stackelberg solution. Specifically, in order to improve the computational accuracy of approximate Stakelberg solutions and shorten the computational time of a computational method implementing a genetic algorithm (GA) proposed by the authors, a distributed genetic algorithm is introduced with respect to the upper level GA, which handles decision variables for the upper level DM. Parallelization of the lower level GA is also performed along with parallelization of the upper level GA. The proposed algorithm is also improved in order to eliminate unnecessary computation during operation of the lower level GA, which handles decision variables for the lower level DM. In order to verify the effectiveness of the proposed method, we propose comparisons with existing methods by performing numerical experiments to verify both the accuracy of the solution and the time required for the computation.
    Źródło:
    Journal of Telecommunications and Information Technology; 2010, 2; 78-87
    1509-4553
    1899-8852
    Pojawia się w:
    Journal of Telecommunications and Information Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Coordination Games with Communication Costs in Network Environments
    Autorzy:
    Nishizaki, I.
    Hayashida, T.
    Hara, N.
    Powiązania:
    https://bibliotekanauki.pl/articles/309301.pdf
    Data publikacji:
    2010
    Wydawca:
    Instytut Łączności - Państwowy Instytut Badawczy
    Tematy:
    communication costs
    coordination games
    equilibrium
    networks
    Opis:
    In this paper, we deal with a coordination game in a network where a player can choose both an action of the game and partners for playing the game. In particular, a player interacts with players connecting through a path consisting of multiple links as well as with players directly connecting by a single link. We represent decay or friction of payoffs with distance as communication costs, and examine the effect of the communication cost on behavior of players in the game and network formation. We investigate properties of equilibrium networks by classifying the link cost and the communication cost, and show diversity of the equilibrium networks.
    Źródło:
    Journal of Telecommunications and Information Technology; 2010, 2; 88-98
    1509-4553
    1899-8852
    Pojawia się w:
    Journal of Telecommunications and Information Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Under-Reporting of Accidents Involving Biological Material by Nursing Professionals at a Brazilian Emergency Hospital
    Autorzy:
    Facchin, L. T.
    Gir, E.
    Pazin-Filho, A.
    Hayashida, M.
    da Silva Canini, S. R. M.
    Powiązania:
    https://bibliotekanauki.pl/articles/90558.pdf
    Data publikacji:
    2013
    Wydawca:
    Centralny Instytut Ochrony Pracy
    Tematy:
    healthcare worker
    infection control
    emergency department
    occupational exposure
    pracownicy opieki zdrowotnej
    oddział ratunkowy
    narażenie zawodowe
    Opis:
    Background. Pathogens can be transmitted to health professionals after contact with biological material. The exact number of infections deriving from these events is still unknown, due to the lack of systematic surveillance data and under-reporting. Methods. A cross-sectional study was carried out, involving 451 nursing professionals from a Brazilian tertiary emergency hospital between April and July 2009. Through an active search, cases of under-reporting of occupational accidents with biological material by the nursing team were identified by means of individual interviews. The Institutional Review Board approved the research project. Results. Over half of the professionals (237) had been victims of one or more accidents (425 in total) involving biological material, and 23.76% of the accidents had not been officially reported using an occupational accident report. Among the underreported accidents, 53.47% were percutaneous and 67.33% were bloodborne. The main reason for nonreporting was that the accident had been considered low risk. Conclusions. The under-reporting rate (23.76%) was low in comparison with other studies, but most cases of exposure were high risk.
    Źródło:
    International Journal of Occupational Safety and Ergonomics; 2013, 19, 4; 623-629
    1080-3548
    Pojawia się w:
    International Journal of Occupational Safety and Ergonomics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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