Faculty Profiles - OGAWA Kohei

Papers - OGAWA Kohei

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Emotional or social?: How to enhance human-robot social bonding Reviewed

Naoki Koyama, Kazuaki Tanaka, Kohei Ogawa, Hiroshi Ishiguro

HAI 2017 - Proceedings of the 5th International Conference on Human Agent Interaction page： 203 - 211 2017.10

Language：English Publishing type：Research paper (international conference proceedings) Publisher：Association for Computing Machinery, Inc

The behavior of a social robot is designed based on either its emotional state or social situation. In this research, we defined these expressions as the affective and social expressions, and proposed a new emotional expression method to integrate these two expressions. It is known that a human has involuntary facial muscles around the eyes, and voluntary facial muscles around the mouth. Thus, it is considered that facial muscles around the eyes express the affective expressions, while facial muscles around the mouth express the social expressions. In an experiment involving a human-robot conversation, using the proposed method, the results showed a sense of human likeness and sociality. Furthermore, the intimacy evaluation results showed that the social expressions work effectively when the intimacy does not require high social bonding such as the desire for friendship. However, the affective expressions are necessary for evaluating intimacy that requires higher social bonding, such as wanting to live with someone.

DOI： 10.1145/3125739.3125742

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Emotional or Social?: How to Enhance Human-Robot Social Bonding Reviewed

Naoki Koyama, Kazuaki Tanaka, Kohei Ogawa, Hiroshi Ishiguro

page： 203 - 211 2017.10

アンドロイドルU：社会的に大きな存在感の獲得に向けたニコニコ生放送における対話アンドロイドの実現への取り組み

窪田智徳, 小川浩平, 石黒浩

人工知能学会全国大会論文集 Vol. 2017 ( 0 ) page： 2N2 - 3 2017.5

Language：Japanese Publishing type：Research paper (other academic) Publisher：一般社団法人人工知能学会

<p>本研究では、株式会社ドワンゴが提供するニコニコ生放送サービス上で、人と雑談対話エンジンが協調してアンドロイドを操作し、雑談対話コーパスを収集しながら雑談対話エンジンの漸進的な自律性の獲得を目指すシステムを提案する。ニコニコ生放送では配信された映像を不特定多数のユーザが視聴するため、効率的な対話コーパス収集が可能である。本稿では上記手法を実装・運用し、雑談対話エンジンの一定の自律性の獲得を確認した。</p>

DOI： 10.11517/pjsai.JSAI2017.0_2N23

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Theatrical approach: Designing human-like behaviour in humanoid robots Reviewed

Shogo Nishiguchi, Kohei Ogawa, Yuichiro Yoshikawa, Takenobu Chikaraishi, Oriza Hirata, Hiroshi Ishiguro

ROBOTICS AND AUTONOMOUS SYSTEMS Vol. 89 page： 158 - 166 2017.3

Language：English Publishing type：Research paper (scientific journal) Publisher：ELSEVIER SCIENCE BV

A key challenge in designing humanoid robots is producing natural and human-like behaviour. This study addressed this challenge by developing an instructive interface to design natural and human-like behaviour in a humanoid robot that will be helpful not only for professional robot motion designers but also for nonprofessionals. A staging method called contemporary colloquial theatre theory has been developed in the field of theatre to reproduce the natural behaviour of humans. Based on the theory, to design robot behaviour, we extracted implicit knowledge from a director's instructions given to a robot actor in a robot theatre project, where the robot functions as an actor and interacts with human actors. This paper shows the validity of applying this knowledge extraction method by means of a public stage play entitled Night On The Milky Way Train and two short plays created for the purpose of carrying out an analysis. Our analysis produced important rules for designing the behaviour of humanoid robots. The rules were extracted in forms suited to the instructive function of the interface. In this paper, we report the results of a subjective experiment conducted to verify the effectiveness of this function. Our experimental results suggest that the rules derived are effective in improving robot behaviour. (C) 2016 Elsevier B.V. All rights reserved.

DOI： 10.1016/j.robot.2016.11.017

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ロボットのNon-Duchenne Smileによる人との社会的結合の強化 Reviewed

小山直毅, 田中一晶, 小川浩平, 石黒浩

インタラクション2017 page： 87 - 96 2017.2

The Influence of Semi-Forced Selections on Human Preference in Conversation with an Android through a Touch Display

渡辺美紀, 小川浩平, 吉川雄一郎, 石黒浩

認知科学 Vol. 23 ( 4 ) page： 411 - 419 2016.12

教養としての工学 : ART＋ENGINEERING

小川浩平, オガワコウヘイ, Ogawa Kohei

Communication-Design 特別号 Vol. 1 page： 32-41 2016.3

Understanding the principle of communication through a field experiment using an android Invited

Kohei Ogawa, Miki Watanabe, Hiroshi Ishiguro

Journal of Japan Institute of Electronics Packaging Vol. 19 ( 6 ) page： 378 - 383 2016

ミナミちゃん:販売を通じたアンドロイドの実社会への応用と検証 Reviewed

渡辺美紀, 小川浩平, 石黒浩

情報処理学会論文誌 Vol. 57 ( 4 ) page： . 2016

アンドロイドとのタッチディスプレイを通じた対話における半強制的な選択が人間の選好に与える影響 Reviewed

渡辺美紀, 小川浩平, 吉川雄一郎, 石黒浩

認知科学 Vol. 23 ( 4 ) 2016

感情でつながる、感情でつなげるロボット対話システム Invited

小川浩平, 住岡英信, 石黒浩

人工知能 Vol. 31 ( 5 ) page： 650 - 655 2016

Android robots as in-between beings

Kohei Ogawa, Hiroshi Ishiguro

Cognitive Science and Technology page： 327 - 337 2016

Language：English Publishing type：Part of collection (book) Publisher：Springer International Publishing

The Geminoid is an android robot based on an existing person and it can act as an avatar of the original person using a teleoperation system. The Telenoid is another android which is characterized by implementing a minimal design representation of a human. By this design, the Telenoid allows people to feel as if a spatially distant acquaintance is close-by. We created two artworks with the Geminoid through collaborations with artists. Firstly, we conceived the Android Theater. In Android Theatre human actors and androids shared the stage in a first play of its kind worldwide. The second work is an “Intelligent Mannequin”. Here the Geminoid was interacting with the visitors in a department store as an interactive mannequin. In this chapter, we give an overview of the Geminoid and the Telenoid, describing its appearance, teleoperation system and the concept of Android Science. We then focus on the artworks.

DOI： 10.1007/978-981-10-0321-9_16

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Future roles for android robots-survey and trial Reviewed

Tomoya Hoshikawa, Kohei Ogawa, Hiroshi Ishiguro

HAI 2015 - Proceedings of the 3rd International Conference on Human-Agent Interaction page： 41 - 48 2015.10

Language：English Publishing type：Research paper (international conference proceedings) Publisher：Association for Computing Machinery, Inc

The future role of android robots is discussed. Survey results reveal that people are capable of viewing androids as companions and will accept androids operating in various roles within human society
however, people are uncomfortable with androids operating in roles in which they are able to persuade humans to do something, affect humans' minds, or supervise young children. To examine people's response to an actual android robot within human society, an android capable of operating as "lecturer" was implemented and an evaluative experiment conducted. It was found that androids can evoke feelings of attentiveness that are much stronger than those evoked by existing media. Furthermore, use of the lecturer android did not improve efficiency. It is possible that people expected the android to have human-like abilities because of its human-like appearance. However, regardless of the cause, it is clear from the experiment that it is necessary to program androids with more human-like functions if they are to fill useful roles within human society.

DOI： 10.1145/2814940.2814960

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遠隔操作ロボットを用いた外国語教育での学習者音声の特徴 Reviewed

中村静, 渡辺美紀, 吉川雄一郎, 小川浩平, 石黒浩

page： 327 - 328 2015.9

Can androids be a social entity in a real world?

Vol. 59 page： . 2015.5

選択式対話が人の想像力にもたらす影響のフィールドでの検証

渡辺美紀, 小川浩平, 石黒浩, 濱口秀氏

2015.5

Can androids be salespeople in the real world? Reviewed

Miki Watanabe, Kohei Ogawa, Hiroshi Ishiguro

Conference on Human Factors in Computing Systems - Proceedings Vol. 18 page： 781 - 788 2015.4

Language：English Publishing type：Research paper (international conference proceedings) Publisher：Association for Computing Machinery

The roles of robots in the real world have become more diverse depending on their bodily properties. In this study, we aim to determine the roles that androids, whose bodily properties resemble humans, could serve in the real world. Selling and purchasing are common human activities. Therefore, we proposed the use of an android as a salesperson with cognitive and affective strategies utilizing the advantages of online-and counter-selling methods. We conducted a field study to investigate whether androids could sell goods in a department store. As a result, our sales strategies worked well and the android could sell 43 sweaters that cost approximately 100 dollars each for 10 days. These results are important knowledge for determining how androids may serve new roles and communicate with humans in the real world.

DOI： 10.1145/2702613.2702967

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Relieving Mental Stress of Speakers using a Tele-Operated Robot in Foreign Language Speech Education Reviewed

Shizuka Nakamura, Miki Watanabe, Yuichiro Yoshikawa, Kohei Ogawa, Hiroshi Ishiguro

16TH ANNUAL CONFERENCE OF THE INTERNATIONAL SPEECH COMMUNICATION ASSOCIATION (INTERSPEECH 2015), VOLS 1-5 page： 1835 - 1838 2015

Language：English Publishing type：Research paper (international conference proceedings) Publisher：ISCA-INT SPEECH COMMUNICATION ASSOC

In an effort to relieve the mental stress experienced by speakers in foreign language speech education classes, an experiment using a tele-operated robot was conducted and its effect was evaluated. The robot was utilized in the following class environment: the teacher and classmates were not able to see the actual appearance of the speaker; however, the speaker could visually recognize the tele-operated robot speaking as its proxy, and was aware of the fact that the teacher and classmates also recognized the situation. The results of statistical analysis of subjective evaluation by the speakers to evaluate the effect on stress show that the degree of stress in speakers was lower when conversations with the teacher were conducted indirectly via the robot than doing so directly. A similar tendency is indicated by the results of subjective evaluation by the listeners in this experiment to imagine the case that they themselves are speakers. These results confirm that it is possible to relieve the mental stress experienced by speakers by utilizing a tele-operated robot.

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公共空間における情報提供メディアとしてのアンドロイド Reviewed

渡辺美紀, 小川浩平, 石黒浩

Vol. 20 ( 1 ) page： 15 - 24 2015

The Uncanny in the Wild. Analysis of Unscripted Human-Android Interaction in the Field Reviewed

Astrid M. Rosenthal-von der Puetten, Nicole C. Kraemer, Christian Becker-Asano, Kohei Ogawa, Shuichi Nishio, Hiroshi Ishiguro

INTERNATIONAL JOURNAL OF SOCIAL ROBOTICS Vol. 6 ( 1 ) page： 67 - 83 2014.1

Language：English Publishing type：Research paper (scientific journal) Publisher：SPRINGER

Against the background of the uncanny valley hypothesis we investigated how people react towards an android robot in a natural environment dependent on the behavior displayed by the robot (still vs. moving) in a quasi-experimental observational field study. We present data on unscripted interactions between humans and the android robot "Geminoid HI-1" in an Austrian public cafe and subsequent interviews. Data were analyzed with regard to the participants' nonverbal behavior (e.g. attention paid to the robot, proximity). We found that participants' behavior towards the android robot as well as their interview answers were influenced by the behavior the robot displayed. In addition, we found huge inter-individual differences in the participants' behavior. Implications for the uncanny valley and research on social human-robot interactions are discussed.

DOI： 10.1007/s12369-013-0198-7

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Papers - OGAWA Kohei