2007 Fiscal Year Final Research Report Summary
Construction of Biological Manufacturing Systems Introducing Bounded Rationality
| Project/Area Number |
18360190
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
System engineering
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| Research Institution | The University of Tokyo |
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Principal Investigator |
UEDA Kanji The University of Tokyo, Research into Artifact, Center for Engineering (RACE), Professor (50031133)
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| Co-Investigator(Kenkyū-buntansha) |
FUJII Nobutada Kobe University, Graduate School of Engineering, Associate Professor (80332758)
NISHINO Nariaki The University of Tokyo, Research into Artifact, Center for Engineering (RACE), Assistant Professor (90401299)
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| Project Period (FY) |
2006 – 2007
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| Keywords | Bounded Rationality / Biological Manufacturing Systems / Experimental Economics |
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| Research Abstract |
As society and organizations recently get more complex in response to the increasing globalization and networking, artificial systems which are originally designed and controllable by human also become complex and diversified. In order to conduct effective manufacturing under such situations, the traditional top-down approach is not adequate and a new bottom-up approach is required. To realize bottom-up manufacturing, Ueda has proposed new concept of biological manufacturing systems (BMS) and developed several practical studies. This study focuses on bounded rationality and introduces it into biological manufacturing systems. Bounded rationality is a feature that is originally inherent in human beings and is generally considered as a rejectable factor in manufacturing systems. However, bounded rationality occasionally provides flexibility in organizations or society. Therefore, this study pursuits possibility that bounded rationality works effectively in manufacturing systems.
Firstly,
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basic properties of bounded rationality are examined using ant system simulation. Results show that effectiveness of the whole system is improved if some bounded rational ants are in the system. Especially, effectiveness is increasing when the system includes incomplete information about the environment where ants make decision. In addition, we make simulation of self-organized manufacturing systems in which bounded rationality is introduced. In the simulation, where AGVs behave bounded rationally, practical data of real manufacturing floor are used and analyzed production efficiency. The simulation results show role-sharing process is emerged and production efficiency is increasing. Besides, bounded rationality in social systems is examined. In particular, purchase decision-making in markets with network externalities are analyzed by multi-agent simulation and experiments with human subjects. As a result, some types of bounded rational behavior are observed.
Summing up all results, availability of bounded rationality in manufacturing systems is discussed and concluded. Less
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