Faculty Profiles - OGAWA Kohei

Papers - OGAWA Kohei

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Japanese Young Women Did not Discriminate between Robots and Humans as Listeners for Their Self-Disclosure -Pilot Study- Reviewed

Takahisa Uchida, Hideyuki Takahashi, Midori Ban, Jiro Shimaya, Takashi Minato, Kohei Ogawa, Yuichiro Yoshikawa, Hiroshi Ishiguro

Multimodal Technologies and Interaction Vol. 4 ( 3 ) page： 35 - 35 2020.6

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

Disclosing personal matters to other individuals often contributes to the maintenance of our mental health and social bonding. However, in face-to-face situations, it can be difficult to prompt others to self-disclose because people often feel embarrassed disclosing personal matters to others. Although artificial agents without strong social pressure for listeners to induce self-disclosure is a promising engineering method that can be applied in daily stress management and reduce depression, gender difference is known to make a drastic difference of the attitude toward robots. We hypothesized that, as compared to men, women tend to prefer robots as a listener for their self-disclosure. The experimental results that are based on questionnaires and the actual self-disclosure behavior indicate that men preferred to self-disclose to the human listener, while women did not discriminate between robots and humans as listeners for their self-disclosure in the willingness and the amount of self-disclosure. This also suggests that the gender difference needs to be considered when robots are used as a self-disclosure listener.

DOI： 10.3390/mti4030035

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Can a humanoid robot continue to draw attention in an office environment? Reviewed

Yuki Okafuji, Jun Baba, Junya Nakanishi, Itaru Kuramoto, Kohei Ogawa, Yuichiro Yoshikawa, Hiroshi Ishiguro

Advanced Robotics page： 1 - 16 2020.6

Teleoperated Robot Acting Autonomous for Better Customer Satisfaction Reviewed

Jun Baba, Song Sichao, Junya Nakanishi, Itaru Kuramoto, Kohei Ogawa, Yuichiro Yoshikawa, Hiroshi Ishiguro

Extended Abstracts of the 2020 CHI Conference on Human Factors in Computing Systems 2020.4

人口減少社会におけるコミュニティ形成に必要となるアプリケーション開発 Reviewed

冨永善視, 田中秀樹, 成本迅, 石黒浩, 小川浩平

デジタルプラクティス Vol. 11 ( 2 ) page： 389 - 413 2020.4

Authorship：Last author Language：Japanese Publishing type：Research paper (scientific journal)

我が国は人口減少社会という次代の社会構造への過渡期にあり，社会・産業構造の再構成に取り組んでいる．人口減少社会においては，人口そのものが少ないために，地域を基盤とした従来のコミュニティ形成が困難となっている．一方，若年層の間では，互いの詳細な個人情報を持たないインターネット上のサービスで実現された「弱いつながり」により，災害時などの互助を実現する「強いコミュニティ」が形成されている．我々は，人口減少社会におけるICT基盤となるサービスは，高齢者や知的ハンディキャップを持つ障碍者など多くの人間が利用でき，バーチャルエージェントも参加し人口減少分を補完し，互助の可能性を増大させ，孤独死などの不安を解消するサービスであると結論づけた．本稿では，「御用聞きAI」に実装した複数の機能について，利用者の評価や実証実験での利用率などの結果とともに，継続採用，停止した実績の紹介を行う．また，実証実験において「御用聞きAI」を実事業として運用した結果を元に，持続可能な仕組みづくりと高齢者の孤独感解消の観点から，基盤サービスとして注力すべき機能を再整理する．これらの考察を踏まえ，人口減少社会に必要な基盤サービスとは具体的にどのような機能を有するサービスであるか，「御用聞きAI」の最新版とともに明らかにする．

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遠隔操作ロボットのリズミカルな動作による身体的・空間的一体感の強化 Reviewed

小原宗一郎, 高橋ともみ, 田中一晶, 小川浩平, 吉川雄一郎, 石黒浩, 岡夏樹

2020.4

Please Listen to Me

Yuki Okafuji, Yasunori Ozaki, Jun Baba, Asano Kitahara, Junya Nakanishi, Kohei Ogawa, Yuichiro Yoshikawa, Hiroshi Ishiguro

Companion of the 2020 ACM/IEEE International Conference on Human-Robot Interaction 2020.3

Continuous Hospitality with Social Robots at a hotel Reviewed

Junya Nakanishi, Itaru Kuramoto, Jun Baba, Kohei Ogawa, Yuichiro Yoshikawa, Hiroshi Ishiguro

SN Applied Sciences Vol. 2 ( 3 ) 2020.3

Development and Verication of an Onsite-operated Android Robot Working Cooperatively with Humans in a Real Store Reviewed

Kubota Tomonori, Isowa Takamichi, Ogawa Kohei, Ishiguro Hiroshi

The Transactions of Human Interface Society Vol. 22 ( 3 ) page： 275 - 290 2020

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Human Interface Society

While the potential of adopting robots interacting with humans in stores was shown in the previous studies, however robots that can work with people in stores and provide services have not taken root in society yet. In this paper, we realized an android robot which can help the duties of the salespersons at a boutique as well as provide mental support by cooperating with them. We considered that it is important for such robots to not only serve the customers but also support the salespersons. Therefore, we first interviewed salespersons at a boutique to find out what they expect from the robot. The result of the survey showed that they mainly expect three points from the robot: 1) reducing the workload of salesperson, 2) providing mental support for salesperson, and 3) assisting salesperson to establish a good relationship with the customer. To deal with these issues, we implemented an onsite-operated android. Through an 11-day field experiment in a boutique, in which the salespersons used the android, it was observed that the android could contribute to the salespersons in some situation of the work, and more possibilities for the android to contribute to the salespersons in some different aspects was investigated.

DOI： 10.11184/his.22.3_275

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Development of an agent system induces humans’ behavior through a decision making

OGAWA Kohei

Proceedings of the Annual Conference of JSAI Vol. JSAI2020 ( 0 ) page： 3J5OS9b01 - 3J5OS9b01 2020

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：The Japanese Society for Artificial Intelligence

In this paper, we have described an attempt to gradually induce the intended behavior by continuing dialogue and promoting decision-making. In order to give people social influence through dialogue, it is important to continue the dialogue. Therefore, we described an attempt to keep the conversation between the robot and viewer for a long time in NicoLive Broadcasting. In addition, after the dialogue was able to be continued, it was found that the choice-based dialogue system presented multiple choices and encouraged decision-making, which affected the preferences and purchasing behavior of people.

DOI： 10.11517/pjsai.jsai2020.0_3j5os9b01

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Realization of the system that reconstructs information into a conversation

ISOWA Takamichi, OGAWA Kohei, SATO Satoshi, ISHIGURO Hiroshi

Proceedings of the Annual Conference of JSAI Vol. JSAI2020 ( 0 ) page： 2P4GS1105 - 2P4GS1105 2020

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：The Japanese Society for Artificial Intelligence

Due to recent technological progress, various kinds of information, for example, objective information such as news and subjective information such as recommendations, are conveyed by various methods such as characters, photos, videos, robots, etc. Among them, it has become clear that conveying information using conversation makes it easier for the receiver to remain in memory than simply conveyed information. Therefore, by reconstructing information into conversation, we can convey information more efficiently. Two agents which has incomplete knowledge reconcile each other's knowledge and represent an attempt to understand each other's knowledge with conversation. Then we can reconstruct information into conversation. The two knowledge structures are created by dividing one complete knowledge structure into two incomplete ones. And the two agents aim to bring each knowledge structure closer to the complete one by reconciling each other's knowledge. The original complete knowledge structure is a structure with attributes, and form filling is performed using API. In addition, concrete conversations are created by filling incomplete sentences with words based on attributes. In this paper, we describe in detail the methods and techniques used for a system that realizes reconstructing information into conversation.

DOI： 10.11517/pjsai.jsai2020.0_2p4gs1105

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Soliloquising Social Robot in a Hotel Room Reviewed

Junya Nakanishi, Itaru Kuramoto, Jun Baba, Kohei Ogawa, Yuichiro Yoshikawa, Hiroshi Ishiguro

Proceedings of the 31st Australian Conference on Human-Computer-Interaction 2019.12

The Belle II physics book

Kou E.

Progress of Theoretical and Experimental Physics Vol. 2019 ( 12 ) 2019.12

How Prior Knowledge and Belief Affect our Attitude Toward the Android of "Soseki Natsume"? Reviewed

TAKAHASHI Hideyuki, IZUHARA Junsei, KAIDA Akiko, YAMAGUCHI Tadayoshi, SAKAI Kurima, KOYAMA Tora, OGAWA Kohei, ISHIGURO Hiroshi

Journal of Japan Society for Fuzzy Theory and Intelligent Informatics Vol. 31 ( 5 ) page： 852 - 858 2019.10

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Japan Society for Fuzzy Theory and Intelligent Informatics

It is well known that prior knowledge and belief substantially influence our attitude toward another person in an interpersonal communication scene. Meanwhile, in many cases, we do not use confirmed prior knowledge and belief in a human-robot interaction scene, because these entities do not have commonly shared identities. Hence, it is still unclear that how prior knowledge and belief affect our attitude toward artificial robots. In this study, we investigated how prior knowledge and belief influence our attitude toward android of "Soseki Natsume" who is one of most famous novelists in Japan. As a result, we found that prior knowledge about Soseki was weakly related to the subject's sense of reality of the android. Furthermore, we also found that the awe of artificial intelligence was strongly related to the subject's sense of reality of the android.

DOI： 10.3156/jsoft.31.5_852

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Effect of Self-representation of Interaction History by the Robot on Perceptions of Mind and Positive Relationship: A Case Study on a Home-use Robot Reviewed

Hamed Mahzoon, Kohei Ogawa, Yuichiro Yoshikawa, Michiko Tanaka, Kento Ogawa, Ryouta Miyazaki, Yusaku Ota, Hiroshi Ishiguro

Advanced Robotics Vol. 33 ( 21 ) page： 1 - 17 2019.9

Development of an Effective Information Media Using Two Android Robots Reviewed

Toshiaki Nishio, Yuichiro Yoshikawa, Kohei Ogawa, Hiroshi Ishiguro

applied sciences Vol. 9 ( 17 ) page： 3442 2019.8

Maintaining the Sense of Agency in Semi-Autonomous Robot Conferencing Reviewed

Tanaka, Takenouchi, Ogawa, Yoshikawa, Nishio, Ishiguro

Future Internet Vol. 11 ( 7 ) page： 143 - 143 2019.7

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

In semi-autonomous robot conferencing, not only the operator controls the robot, but the robot itself also moves autonomously. Thus, it can modify the operator’s movement (e.g., adding social behaviors). However, the sense of agency, that is, the degree of feeling that the movement of the robot is the operator’s own movement, would decrease if the operator is conscious of the discrepancy between the teleoperation and autonomous behavior. In this study, we developed an interface to control the robot head by using an eye tracker. When the robot autonomously moves its eye-gaze position, the interface guides the operator’s eye movement towards this autonomous movement. The experiment showed that our interface can maintain the sense of agency, because it provided the illusion that the autonomous behavior of a robot is directed by the operator’s eye movement. This study reports the conditions of how to provide this illusion in semi-autonomous robot conferencing.

DOI： 10.3390/fi11070143

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いじめ仲裁を促進する発話者を装うチャットボット

植田智之, 中西惇也, 倉本到, 馬場惇, 吉川雄一郎, 小川浩平, 石黒浩

2019.7

Robotic Eyes That Express Personality Reviewed

Liangyi Luo, Naoki Koyama, Kohei Ogawa, Hiroshi Ishiguro

Advanced Robotics page： 1 - 10 2019.3

Robotic eyes that express personality Reviewed

Liangyi Luo, Naoki Koyama, Kohei Ogawa, Hiroshi Ishiguro

Advanced Robotics Vol. 33 ( 7-8 ) page： 350 - 359 2019.3

Sociability for Better Evaluation: Robot with Self-representation of Sociability Improves Perceived Mind Perception and Positive Relation by Interacting Human

Hamed Mahzoon, Kohei Ogawa, Yuichiro Yoshikawa, Michiko Tanaka, Kento Ogawa, Ryouta Miyazaki, Yusaku Ota, Hiroshi Ishiguro

2019.1

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Papers - OGAWA Kohei