著者

伊藤 誠 イトウ マコト ITOH Makoto

雑誌

大阪産業大学経済論集

巻号頁・発行日

vol.13, no.2, pp.149-156, 2012-03

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This note was summarized when optimizing numerical calculations. Under the personal environment supposing PC which recent years formed into the multi-core, the important points about fundamentals of vectorization, parallelization, memory access, etc. were arranged for the double loop of simple matrix calculation for the example.

著者

伊藤 眞 Itoh Makoto

出版者

筑波ドイツ文学会

雑誌

Rhodus : Zeitschrift für Germanistik (ISSN:09190880)

巻号頁・発行日

no.13, pp.118-130, 1997-03-07

著者

Itoh Makoto Horikome Tatsuya Inagaki Toshiyuki

出版者

Elsevier

雑誌

Applied ergonomics (ISSN:00036870)

巻号頁・発行日

vol.44, no.5, pp.756-763, 2013-09

被引用文献数

36 4

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This paper proposes a semi-autonomous collision avoidance system for the prevention of collisions between vehicles and pedestrians and objects on a road. The system is designed to be compatible with the human-centered automation principle, i.e., the decision to perform a maneuver to avoid a collision is made by the driver. However, the system is partly autonomous in that it turns the steering wheel independently when the driver only applies the brake, indicating his or her intent to avoid the obstacle. With a medium-fidelity driving simulator, we conducted an experiment to investigate the effectiveness of this system for improving safety in emergency situations, as well as its acceptance by drivers. The results indicate that the system effectively improves safety in emergency situations, and the semi-autonomous characteristic of the system was found to be acceptable to drivers.

著者

Itoh Makoto

出版者

Springer-Verlag London

雑誌

Cognition, technology & work (ISSN:14355558)

巻号頁・発行日

vol.14, no.1, pp.51-60, 2012-03

被引用文献数

30

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Avoiding human overtrust in machines is a vital issue to establish a socially acceptable advanced driver assistance system (ADAS). However, research has not clarified the effective way of designing an ADAS to prevent driver overtrust in the system. It is necessary to develop a theoretical framework that is useful to understand how a human trust becomes excessive. This paper proposes a trust model by which overtrust can be clearly defined. It is shown that at least three types of overtrust are distinguished on the basis of the model. As an example, this paper discusses human overtrust in an adaptive cruise control (ACC) system. By conducting an experiment on a medium-fidelity driving simulator, we observed two types of overtrust among the three. The first one is that some drivers relied on the ACC system beyond its limit of decelerating capability. The second one is that a driver relied on the ACC systems by expecting that it could decelerate against a stopped vehicle. It is estimated through data analysis how those kinds of overtrust emerged. Furthermore, the possible ways for prevention of human overtrust in ADAS are discussed.