研究者詳細 - 小川　浩平

論文 - 小川　浩平

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Effects of the Behavior of a Para-operated Robot on the Impression of the Operator: a Preliminary Online Study Considering the Robot-operator Distance 査読有り

Tomonori Kubota, Kohei Ogawa

International Conference on Human-Agent Interaction 2023 2023年12月

Investigating the Intervention in Parallel Conversations 招待有り査読有り

Shota Mochizuki, Sanae Yamashita, Kazuyoshi Kawasaki, Reiko Yuasa Tomonori Kubota, Kohei Ogawa, Jun Baba, Ryuichiro Higashinaka

Proceedings of the 11th International Conference on Human-Agent Interaction, 2023 2023年12月

Investigating the Effects of Dialogue Summarization on Intervention in Human-System Collaborative Dialogue 査読有り

Sanae Yamashita, Shota Mochizuki, Kazuyoshi Kawasaki, Tomonori Kubota, Kohei Ogawa, Jun Baba, Ryuichiro Higashinaka

International Conference on Human-Agent Interaction 2023 2023年12月

Immersive role-playing with avatars leads to adoption of others' personalities 査読有り

Hiroshi Sakuma, Hideyuki Takahashi, Kohei Ogawa, Hiroshi Ishiguro

Frontiers in Virtual Reality 4 巻 2023年3月

構造化された情報を会話表現に変換する技術の実現と評価査読有り

磯和隆道, 小川浩平 , 佐藤理史, 石黒浩

情報処理学会論文誌 64 巻 ( 1 ) 頁： 200 - 213 2023年1月

Behavioral Assessment of a Humanoid Robot When Attracting Pedestrians in a Mall

Okafuji Y., Ozaki Y., Baba J., Nakanishi J., Ogawa K., Yoshikawa Y., Ishiguro H.

International Journal of Social Robotics 14 巻 ( 7 ) 頁： 1731 - 1747 2022年7月

掲載種別：研究論文（学術雑誌）出版者・発行元：International Journal of Social Robotics

Research is currently being conducted on the use of robots as human labor support technology. In particular, the service industry needs to allocate more manpower, and it will be important for robots to support people. This study focuses on using a humanoid robot as a social service robot to convey information in a shopping mall, and the types of robot behaviors were analyzed. In order to convey the information, two processes must occur. Pedestrians must stop in front of the robot, and the robot must continue the engagement with them. For the purpose of this study, three types of autonomous robot behaviors were analyzed and compared in these processes in the experiment: greeting, in-trouble, dancing behaviors. After interactions were attempted with 5,000+ pedestrians, this study revealed that the in-trouble behavior can make pedestrians stop more and stay longer. In addition, in order to evaluate the effectiveness of the robot in a real environment, the comparative results between three robot behaviors and human advertisers revealed that (1) the results of the greeting and dancing behavior are comparable to those of the humans, and (2) the performance of the in-trouble behavior in providing information tasks is higher than that of all human advertisers. These findings demonstrate that the performance of robots is comparable to that of humans in providing information tasks in a limited environment; therefore, it is expected that service robots as a labor support technology will be able to perform well in the real world.

DOI： 10.1007/s12369-022-00907-9

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その他リンク： https://link.springer.com/article/10.1007/s12369-022-00907-9/fulltext.html

Alignment of the attitude of teleoperators with that of a semi-autonomous android 査読有り

Kubota T., Ogawa K., Yoshikawa Y., Ishiguro H.

Scientific Reports 12 巻 ( 1 ) 2022年6月

掲載種別：研究論文（学術雑誌）出版者・発行元：Scientific Reports

Studies on social robots that can communicate with humans are increasingly important. In particular, semi-aautonomous robots have shown potential for practical applications in which robot autonomy and human teleoperation are jointly used to accomplish difficult tasks. However, it is unknown how the attitude represented in the autonomous behavior of the robots affects teleoperators. Previous studies reported that when humans play a particular role, their attitudes align with that role. The teleoperators of semi-autonomous robots also play the role given to the robots and may assimilate their autonomous expression. We hypothesized that the attitude of teleoperators may align with that of robots through teleoperation. To verify this, we conducted an experiment with conditions under which a participant operated a part of the body of an android robot that autonomously expressed a preferential attitude toward a painting and a condition under which they did not. Experimental results demonstrated that the preferential attitude of participants who teleoperated the android aligned statistically significantly more with that of the robot in comparison to those who did not teleoperate it, thereby supporting our hypothesis. This finding is novel regarding attitude change in teleoperators of semi-autonomous robots and can support the implementation of effective human-robot collaboration systems.

DOI： 10.1038/s41598-022-13829-3

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その他リンク： https://www.nature.com/articles/s41598-022-13829-3

Identifying Personality Dimensions for Engineering Robot Personalities in Significant Quantities with Small User Groups 査読有り

Luo L., Ogawa K., Ishiguro H.

Robotics 11 巻 ( 1 ) 頁： 28 - 28 2022年2月

記述言語：日本語掲載種別：研究論文（学術雑誌）出版者・発行元：Robotics

Future service robots mass-produced for practical applications may benefit from having personalities. To engineer robot personalities in significant quantities for practical applications, we need first to identify the personality dimensions on which personality traits can be effectively optimised by minimising the distances between engineering targets and the corresponding robots under construction, since not all personality dimensions are applicable and equally prominent. Whether optimisation is possible on a personality dimension depends on how specific users consider the personalities of a type of robot, especially whether they can provide effective feedback to guide the optimisation of certain traits on a personality dimension. The dimensions may vary from user group to user group since not all people consider a type of trait to be relevant to a type of robot, which our results corroborate. Therefore, we had proposed a test procedure as an engineering tool to identify, with the help of a user group, personality dimensions for engineering robot personalities out of a type of robot knowing its typical usage. It applies to robots that can imitate human behaviour and small user groups with at least eight people. We confirmed its effectiveness in limited-scope tests.

DOI： 10.3390/robotics11010028

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複数エージェントの遠隔操作システムの実現に向けた、多地点情報の適切な要約表示方法

川崎一賢, 小川浩平

人工知能学会全国大会論文集 JSAI2022 巻 ( 0 ) 頁： 2F1GS904 - 2F1GS904 2022年

記述言語：日本語出版者・発行元：一般社団法人人工知能学会

<p>複数地点に設置された半自律型対話ロボットを同時に遠隔操作する場合、異なるロボットへの操作切り替え時に、オペレータは切り替え先の文脈情報を迅速に理解する必要がある。そのため、状況に合わせた適切な要約表示方法を明らかにすることで、ユーザーに対して複数対話ロボットを通じた、より適切な対話サービスを提供できる可能性がある。そこで、本研究では、さまざまな会話状況に適した要約方法を提案し、一般的な要約よりも迅速に文脈を理解できるかどうか検証した。検証のため、まず対話ロボットの利用が想定される状況を、タスク指向性という観点から分類した。その中で、最も典型的な例として、雑談とテイクアウトの電話対応という２つの状況を設定し、それぞれの状況で提案する要約方法と一般的な要約方法を比べることで最適な要約方法を検証した。実験の結果、提案手法は会話内容をより正しく理解するのに役立った。</p>

DOI： 10.11517/pjsai.jsai2022.0_2f1gs904

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標準対話構造に基づくエージェントシステムに適した対話デザインパターン構築事例の報告査読有り

冨永善視, 田中秀樹, 松原仁, 石黒浩, 小川浩平

人工知能学会論文誌 2021 年 36 巻 5 号 36 巻 ( 5 ) 頁： AG21 - F_1 2021年9月

担当区分：最終著者,　責任著者記述言語：日本語掲載種別：研究論文（学術雑誌）出版者・発行元：Transactions of the Japanese Society for Artificial Intelligence

To design a dialogue well and easily implement it into an agent dialogue system, we constructed and verified typical dialogue patterns as “ Dialogue Design Patterns ”. To analyze the dialogues, we defined the “ Standard Dialogue Structure ”that represents simple components of dialogues. This is constructed using the“ Turn ”that is one turn-taking between the dialogue participants, the“ Topic ”that is a series of Turns in which a single question is resolved, the“Topic-shift”that is short interaction in which a consensus is built before moving to the next Topic, and the“ Scene ”that puts together each component. We investigated the frequent patterns of dialogue in the Topic. We analyzed the content of each Turn’s utterances on two axes:“convey-receive”and“logical-emotional”. These Turns were labeled on a four-quadrant impression as“ teach ”(logical convey),“ empathy ”(emotional convey),“ survey ” (logical receive), and“ listen ”(emotional receive). We analyzed the frequency of appearance for these labels in the Turns for each Topic using frequent pattern analysis, and we found several typical patterns that order these labels. We named these the patterns and determined their tendency scores. The tendencies of these patterns were categorized into“ information amount ”,“ cooperation ”, and“ balance ”. Finally, we implemented a dialogue scenario created using the Standard Dialogue Structures and Dialogue Design Patterns in our system. In the feasibility study with local government employees, the achievement rate of agent dialogue was more than 50%, and it higher than our previous system. This shows that dialogues based on Dialogue Design Patterns can facilitate agent dialogue. In conclusion, we showed that applying the Standard Dialogue Structure and Dialogue Design Patterns to dialogues in a human-agent dialogue system is a practical and possible way of easily implementing effective dialogues that facilitate interaction even for novices in dialogue design.

DOI： 10.1527/tjsai.36-5_ag21-f

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アンドロイド観音：アンドロイドとプロジェクションマッピングを統合することによる形而上的な内容の情報伝達査読有り

谷口大, 小川浩平, 磯邊友美, 後藤典生, 石黒浩

日本VR学会論文誌 26 巻 ( 4 ) 頁： 288 - 297 2021年9月

Active Participation in Lectures via a Collaboratively Controlled Robot

Shimaya J., Yoshikawa Y., Palinko O., Ogawa K., Jinnai N., Ishiguro H.

International Journal of Social Robotics 13 巻 ( 4 ) 頁： 587 - 598 2021年7月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：International Journal of Social Robotics

Information technology, including digital devices, robots, and the internet, is of great interest in the field of education. Many previous studies have focused on improving lecturer–student communication during lectures. In this paper, we describe a new robot-teleoperation system for transferring students’ opinions or questions to the lecturer. Through this system, users can collaboratively choose a message to be uttered by a robot. We report the results of a subjective experiment performed in a controlled lecture-style environment. The results show that participation, as estimated from behavioral and subjective measures, increased in lectures using the proposed system compared with those that did not use the proposed system or employed a reduced version of the proposed system in which the robot was controlled individually (i.e., non-collaboratively).

DOI： 10.1007/s12369-020-00651-y

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Using multiple robots to increase suggestion persuasiveness in public space 査読有り

Tae M.I., Ogawa K., Yoshikawa Y., Ishiguro H.

Applied Sciences (Switzerland) 11 巻 ( 13 ) 頁： 6080 - 6080 2021年6月

記述言語：日本語掲載種別：研究論文（学術雑誌）出版者・発行元：Applied Sciences (Switzerland)

Though existing social robots can already be used in a variety of applications, there are technical limitations to their use, especially outside the laboratory, and humans do not fully trust or recognize them. Considering these problems, a method to make humans accept a robot’s suggestion more easily was investigated. An idea called “sequential persuasion” was developed to use multiple robots distant from each other to deliver small messages, rather than a single robot for the entire interaction. To experimentally validate this concept, a field experiment was performed on a university campus. Two bottles of hand sanitizer were placed in one of the entrances to a building, and their usage was observed under three different conditions: no robot, one robot, and three robots. As people passed through the entrance corridor, the robots promoted the usage of the hand sanitizers. After several days of testing, it was found that the usage increased progressively from no robot to one robot to three robots, indicating that the number of robots influenced the behavior of the humans.

DOI： 10.3390/app11136080

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Robotic question support system to reduce hesitation for face-to-face questions in lectures 査読有り

Shimaya J., Yoshikawa Y., Ogawa K., Ishiguro H.

Journal of Computer Assisted Learning 37 巻 ( 3 ) 頁： 621 - 631 2021年6月

記述言語：日本語掲載種別：研究論文（学術雑誌）出版者・発行元：Journal of Computer Assisted Learning

Encouraging students to actively ask questions during lectures is a formidable challenge that can be addressed through innovative use of information technology. We developed a robotic system that allows students in a lecture to collaboratively decide questions to be asked by a humanoid robot. To verify whether the system reduces hesitation to ask questions during lectures, 62 university students were divided into two groups, and each attended two different mock lectures on the Nobel Prize in Physics. Two lectures were conducted with and without the proposed system in counterbalanced order. Results suggested that students who were usually hesitant to ask questions during lectures became less hesitant to ask questions face-to-face when they could use the proposed system. Moreover, the perceived activeness in the lectures increased when using the system. Multiple regression analyses revealed that certain student actions, particularly tweeting and showing agreement with the questions posted by others, were correlated with an increase in perceived activeness.

DOI： 10.1111/jcal.12511

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その他リンク： https://onlinelibrary.wiley.com/doi/full-xml/10.1111/jcal.12511

Development and effectiveness evaluation of interactive voice HMI system 査読有り

Kataoka C., Kukimoto O., Yoshikawa Y., Ogawa K., Ishiguro H.

IEICE Transactions on Information and Systems E104.D 巻 ( 4 ) 頁： 500 - 507 2021年4月

記述言語：日本語掲載種別：研究論文（学術雑誌）出版者・発行元：IEICE Transactions on Information and Systems

SUMMARY 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.

DOI： 10.1587/transinf.2020edp7068

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Standard Dialogue Structure and Frequent Patterns in the Agent Dialogue System 査読有り

Tominaga Y., Tanaka H., Ishiguro H., Ogawa K.

Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) 12782 LNCS 巻頁： 348 - 360 2021年

担当区分：最終著者記述言語：日本語掲載種別：論文集(書籍)内論文出版者・発行元：Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)

To design a dialogue well and easily implement it into an autonomous dialogue system, a dialogue with simple components in which interaction with the partners is smoothly achieved is required. In designing interactions to use in an autonomous dialogue system, we consider that there are typical dialogue structures that convey agency and facilitate the dialogue. In this paper, we focused on surveying such dialogue structures and defined this structure as the “Standard Dialogue Structure” for human-agent dialogue. It is constructed using the “Turn” that is one turn-taking between the dialogue participants, the “Topic” that is a series of Turns in which a single question is resolved, the “Topic-shift” that is short interaction to build consensus before moving to the next Topic, and the “Scene” that puts together each component. Using dialogue scenarios created based on the health checklist for elderly people, we confirmed that the Standard Dialogue Structure can be used in question-and-answer dialogues led by the agent. Furthermore, we investigated the frequent patterns of dialogue in the Topic by using the utterances in the Turns which were labeled by a four-quadrant impression. The results indicated that these frequent patterns could be an effective pattern for facilitating dialogue. Therefore, we investigate the possibility of expressing agency and promoting dialogue using these frequent patterns in the autonomous dialogue systems. In conclusion, we have shown that the Standard Dialogue Structure is possible to easily implement dialogues that effectively promote interaction, even for a novice in dialogue design.

DOI： 10.1007/978-3-030-77015-0_25

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哲学者のいるロボット研究室

小山虎, 港隆史, 小川浩平, 吉川雄一郎

日本ロボット学会誌 39 巻 ( 1 ) 頁： 39 - 44 2021年