Development and Effectiveness Evaluation of Interactive Voice HMI System

Chiharu KATAOKA  Osamu KUKIMOTO  Yuichiro YOSHIKAWA  Kohei OGAWA  Hiroshi ISHIGURO  

IEICE TRANSACTIONS on Information and Systems   Vol.E104-D   No.4   pp.500-507
Publication Date: 2021/04/01
Publicized: 2021/01/13
Online ISSN: 1745-1361
DOI: 10.1587/transinf.2020EDP7068
Type of Manuscript: PAPER
Category: Artificial Intelligence, Data Mining
interactive voice system,  multiple agents,  VUI,  

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Connected services have been under development in the automotive industry. Meanwhile, the volume of predictive notifications that utilize travel-related data is increasing, and there are concerns that drivers cannot process such an amount of information or do not accept and follow such predictive instructions straightforwardly because the information provided is predicted. In this work, an interactive voice system using two agents is proposed to realize notifications that can easily be accepted by drivers and enhance the reliability of the system by adding contextual information. An experiment was performed using a driving simulator to compare the following three forms of notifications: (1) notification with no contextual information, (2) notification with contextual information using one agent, and (3) notification with contextual information using two agents. The notification content was limited to probable near-miss incidents. The results of the experiment indicate that the driver may decelerate more with the one- and two-agent notification methods than with the conventional notification method. The degree of deceleration depended the number of times the notification was provided and whether there were cars parked on the streets.