Details of a Researcher - OSAWA Hirotaka

Papers - OSAWA Hirotaka

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山田胡瓜, 中村裕美, 福地健太郎, 寺島裕貴, 大澤博隆, 加藤淳, 宮本道人, 米澤朋子, 江渡浩一郎, 塩見昌裕, 倉本到, 新山龍馬, 渡邊淳司, 宮本隆史, 前田太郎, 水野雄太, 櫻井翔

情報処理 : 情報処理学会誌 : IPSJ magazine (東京 : 情報処理学会 ; 1960-) 61 ( 1 ) 71 - 77 2020.01

ISSN 04478053

Editors' Introduction to "Diversity and AI Research Communities"

伊藤,貴之, 大澤,博隆, 清田,陽司, 坊農,真弓

Journal of the Japanese Society for Artificial Intelligence (The Japanese Society for Artificial Intelligence) 35 ( 5 ) 598 - 601 2020

Joint Work, ISSN 2188-2266

Reducing Partner's Cognitive Load by Estimating the Level of Understanding in the Cooperative Game Hanabi.

Eisuke Sato, Hirotaka Osawa

Advances in Computer Games - 16th International Conference(ACG) (Springer) 12516 LNCS 11 - 23 2020

Joint Work, Last author, Accepted, ISSN 03029743

Hanabi is a cooperative game for ordering cards through information exchange, and has been studied from various cooperation aspects, such as self-estimation, psychology, and communication theory. Cooperation is achieved in terms of not only increased scores, but also reduced cognitive load for the players. Therefore, while evaluating AI agents playing a cooperative game, evaluation indexes other than scores must be considered. In this study, an agent algorithm was developed that follows the human thought process for guessing the AI’s strategy by utilizing the length of thinking time of the human player and changing the estimation reliability, and the influence of this agent on game scores, cognitive load, and human impressions of the agent was investigated. Thus, thinking time was used as an indicator of cognitive load, and the results showed that it is inversely proportional to the confidence of choice. Furthermore, it was found that the mean thinking time of the human player was shortened when the agent used the thinking time of the player, as compared with the estimation of the conventional agent, and this did not affect human impression. There was no significant difference in the achieved score and success rate of the estimation by changing the estimation reliability according to the thinking time. The above results suggest that the agent developed in this study could reduce the cognitive load of the players without influencing performance.

Challenges and Main Results of the Automated Negotiating Agents Competition (ANAC) 2019.

Reyhan Aydogan, Tim Baarslag, Katsuhide Fujita, Johnathan Mell, Jonathan Gratch, Dave de Jonge, Yasser Mohammad, Shinji Nakadai, Satoshi Morinaga, Hirotaka Osawa, Claus Aranha, Catholijn M. Jonker

7 th International Conference on Agreement Technologies (Springer) 12520 LNAI 366 - 381 2020

Joint Work, Accepted, ISSN 03029743

The Automated Negotiating Agents Competition (ANAC) is a yearly-organized international contest in which participants from all over the world develop intelligent negotiating agents for a variety of negotiation problems. To facilitate the research on agent-based negotiation, the organizers introduce new research challenges every year. ANAC 2019 posed five negotiation challenges: automated negotiation with partial preferences, repeated human-agent negotiation, negotiation in supply-chain management, negotiating in the strategic game of Diplomacy, and in the Werewolf game. This paper introduces the challenges and discusses the main findings and lessons learnt per league.

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An evaluation of a wearable assistive device for augmenting social interactions

Shi Qiu, Jun Hu, Ting Han, Hirotaka Osawa, Matthias Rauterberg

IEEE Access (IEEE Access) 8 164661 - 164677 2020

Joint Work, Accepted

Gaze behaviors contain rich information regarding a person's emotions and engagements. Reciprocal eye contact can invoke feelings of liking between two strangers. But blind people cannot perceive and establish the eye contact with sighted counterparts, causing their feelings of social isolation and low confidence in conversations. Thus, our research purpose is to let blind people perceive and react gaze behaviors in social interactions. A Social Glasses system has been implemented iteratively to deliver the multisensory feedback channels of the "eye contact", integrating both visual and tactile feedback. Specifically, the system consists of a Social Glasses device and a tactile wristband, which are worn by a blind person. The Social Glasses simulates the natural gaze for the blind person, aiming at establishing the "eye contact" between blind and sighted people. The tactile wristband enables the blind person to perceive the corresponding tactile feedback when an "eye contact" happens. To test the system, we conducted a user experiment with 40 participants, including 10 blind-sighted pairs (N = 20) and 10 blindfolded-sighted pairs (N = 20), to see how it could help increase the communication quality between blind and sighted people, as well as to suggest implications for its design. Our main findings demonstrated that both the simulated gaze and the tactile feedback were significantly effective to enhance the communication quality in blind-sighted conversations. Overall, we contribute (1) empirical research findings on how a Social Glasses system enhances the communication quality in blind-sighted conversations; and (2) design principles to inform future assistive wearable device for augmenting social interactions.

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Research of correlation between personality of humans and evaluation of the game agent in cooperative game Hanabi

KAWAGOE,Atsushi, OSAWA,Hirotaka

Proceedings of the Annual Conference of JSAI (The Japanese Society for Artificial Intelligence) 2020 ( 0 ) 2F4OS20a03 - 2F4OS20a03 2020

Joint Work, Last author

<p>When we meet a person for the first time, impression of the person is positively correlated with the similarity of the personality. In this paper, the authors researches on whether such a correlation appears even between human and game agent. The author uses AI plays cooperative card game Hanabi as the game agent. The author implemented two kinds of Hanabi agent which has difference on tendency to take risky plays. Participants of an experiment played Hanabi with both agents and evaluate them. As a result, there are some positive correlations between humans' points of view of risk and failure and their evaluation in similar agent. This suggests that we need to take difference of users' personality into account when we design cooperative AI.</p>

AI Wolf Contest : After the International Contest and the Natural Language Contest

鳥海,不二夫, 狩野,芳伸, 大槻,恭士, 大澤,博隆, アランニャ,クラウス, 稲葉,通将, 片上,大輔

Journal of the Japanese Society for Artificial Intelligence (The Japanese Society for Artificial Intelligence) 35 ( 3 ) 344 - 350 2020

Joint Work, ISSN 2188-2266

How to Represent and Organize AI Researcher's Community

大澤, 博隆

Journal of the Japanese Society for Artificial Intelligence (The Japanese Society for Artificial Intelligence) 35 ( 5 ) 613 - 617 2020

Single Work, Lead author, Last author, Corresponding author, ISSN 2188-2266

Discussion Issues on Social Implementation of Intelligent Agents From the Case of "AI Sakura-san"

藤堂,健世, 佐久間,洋司, 大澤,博隆, 清田,陽司

Journal of the Japanese Society for Artificial Intelligence (The Japanese Society for Artificial Intelligence) 35 ( 5 ) 638 - 642 2020

Joint Work, ISSN 2188-2266

Consider the Implications of Integrating Gender into AI

藤堂,健世, 佐久間,洋司, 大澤,博隆

Journal of the Japanese Society for Artificial Intelligence (The Japanese Society for Artificial Intelligence) 35 ( 5 ) 627 - 637 2020

Joint Work, Last author, ISSN 2188-2266

HAI '20: 8th International Conference on Human-Agent Interaction, Virtual Event, Australia, November 10-13, 2020

HAI (ACM) 2020

Joint Work

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Research Trends on Hanabi Competition : Mutual Cooperation under Imperfect Information

大澤,博隆

Journal of the Japanese Society for Artificial Intelligence (The Japanese Society for Artificial Intelligence) 35 ( 3 ) 385 - 389 2020

Single Work, Lead author, Last author, Corresponding author, ISSN 2188-2266

Analysis of Artificial Intelligence in Science Fiction

OSAWA Hirotaka, MIYAMOTO Dohjin, HASE Satoshi, SAIJO Reina, FUKUCHI Kentaro, MIYAKE Youichiro

Proceedings of the Annual Conference of JSAI (The Japanese Society for Artificial Intelligence) JSAI2020 ( 0 ) 2Q5OS13b02 - 2Q5OS13b02 2020

<p>The various possibilities and risks of artificial intelligence are currently being discussed as an urgent issue for rapid AI development for real-world applications. Even the media and researchers often cite science fiction as a vision of the future. But because of the technological inaccuracies of entertainment, it's not always appropriate to bring these AI in science fiction to serious discussion in the future. On the other hand, some science fiction themes play an active role in reminding people of new visions. To understand the mixed effects of science fiction in the field of AI, the authors analyzed how AI was described in science fiction with science fiction critics and writers. First, we selected 115 AI stories in science fiction based on three criteria: intellectual diversity, social dimensions, and expansion of human intelligence. Eleven factors representing AI characteristics were analyzed using cluster analysis and principal component analysis. The results suggest that there are four characteristic AI clusters in SF. They are people, machines, helpers, infrastructure, and mapped to two-dimensional space. They are intelligence and humanity.</p>

ビデオ人狼での他者説得に見られる非言語情報の調査

Osawa Hirotaka

日本認知科学会第37回大会 2020 1010 - 1013 2020

Envisioning the Future : Lessons from "AI no Idenshi"：0. Foreword

福地, 健太郎, 大澤, 博隆, 宮本, 道人

情報処理 61 ( 1 ) 12 - 13 2019.12

Joint Work

Envisioning the Future : Lessons from "AI no Idenshi"：3. Review Meeting with Kyuri Yamada

山田, 胡瓜, 福地, 健太郎, 大澤, 博隆, 宮本, 道人, 江渡, 浩一郎, 倉本, 到, 渡邊, 淳司, 前田, 太郎, 中村, 裕美, 寺島, 裕貴, 加藤, 淳, 米澤, 朋子, 塩見, 昌裕, 新山, 龍馬, 宮本, 隆史, 水野, 雄太, 櫻井, 翔

情報処理 61 ( 1 ) 71 - 77 2019.12

Joint Work

研究者に，漫画家・山田胡瓜流のSF作劇手法を学んでもらった上でSF作品を書いてもらうという『情報処理』特集記事「『AIの遺電子』に学ぶ未来構想術」に寄せられた内の12作品を対象に，山田胡瓜氏を囲んで実施された講評会の様子を記す．各作品に対して，山田氏に加えて講評会に参加した研究らが，その意義や現実の社会に与えうるインパクトについての議論がなされた．議論の中で，『AIの遺電子』に描かれなかった設定についても山田氏本人から語られる場面があった．

書評テレンス・J・セイノフスキー著，銅谷賢治監訳：ディープラーニング革命，400 pp.，ニュートンプレス（2019）

大澤,博隆

Journal of the Japanese Society for Artificial Intelligence (The Japanese Society for Artificial Intelligence) 34 ( 34 ) 948 - 949 2019.11

Single Work, Lead author, Last author, Corresponding author, ISSN 2188-2266

Cover Comment : A Future Design of AI and AI Society from a View of the World the Creators Made

大澤, 博隆, 三宅, 陽一郎, 大内, 孝子

Journal of the Japanese Society for Artificial Intelligence (The Japanese Society for Artificial Intelligence) 34 ( 34 ) 950 - 957 2019.11

Joint Work, Lead author, Corresponding author, ISSN 2188-2266

企画セッション虚構と技術は人をどう変えるか : 「未来社会の知能・虚構・リアリティ」レポート

大澤博隆

人工知能 : 人工知能学会誌 : journal of the Japanese Society for Artificial Intelligence (東京 : 人工知能学会 ; 2014-) 34 ( 6 ) 835 - 838 2019.11

ISSN 21882266

Power of looking together: an analysis of social facilitation by Agent's mutual gaze.

Takuya Toyono, Hirotaka Osawa

IET Cyper-Phys. Syst.: Theory & Appl. (IET Cyber-Physical Systems: Theory and Applications) 4 ( 3 ) 204 - 208 2019.09

Joint Work, Last author, Accepted

The authors investigated the effect of gaze tracking of humans by an agent. Psychological studies have shown that the presence of others facilitates task with implying partnership. This effect also occurs if the presence of others is replaced with a robot. Furthermore, the previous research showed that being touched by a robot motivates a person. However, direct contact such as the touch of a robot has a risk of disturbing human work. The authors used gaze tracking for social facilitation because gaze tracking can also facilitate human efforts and implemented a social facilitation robot agent by using gaze tracking. The agent projects its face on a surface to show quickly changing expressions, which is difficult to achieve with ordinary robots. The agent can also express gaze tracking by implementing eye trackers. The authors prepared three conditions with monotonous tasks to compare the effects of gaze tracking: The agent gazes at the instructed point moves its gaze randomly and traces the gaze point of a participant. The results showed that the participants' motivation increased if the agent is tracking gazed point by a human, even though there are no differences between the achievement scores of the task and the continuation time.

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