Details of a Researcher - OSAWA Hirotaka

Papers - OSAWA Hirotaka

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E-Gaze Glasses: Simulating Natural Gazes for Blind People.

Shi Qiu, Siti Aisyah Anas, Hirotaka Osawa, Matthias Rauterberg, Jun Hu 0001

PROCEEDINGS OF THE TENTH ANNIVERSARY CONFERENCE ON TANGIBLE EMBEDDED AND EMBODIED INTERACTION (TEI16) (ASSOC COMPUTING MACHINERY) 563 - 569 2016

Joint Work, Accepted

Gaze and eye contact are frequently in social occasions used among sighted people. Gaze is considered as a predictor of attention and engagement between interlocutors in conversations. However, gaze signals from the sighted are not accessible for the blind person in face-to-face communication. In this paper, we present functional work-in-progress prototype, E-Gaze glasses, an assistive device based on an eye tracking system. E-Gaze simulates natural gaze for blind people, especially establishing the "eye contact" between blind and sighted people to enhance their engagement in face-to-face conversations. The gaze behavior is designed based on a turn-taking model, which interprets the corresponding relationship between the conclusive gaze behavior and the interlocutors' conversation flow.

Access to Document (DOI)

Constructing a Human-like agent for the Werewolf Game using a psychological model based multiple perspectives.

Noritsugu Nakamura, Michimasa Inaba, Kenichi Takahashi, Fujio Toriumi, Hirotaka Osawa, Daisuke Katagami, Kousuke Shinoda

PROCEEDINGS OF 2016 IEEE SYMPOSIUM SERIES ON COMPUTATIONAL INTELLIGENCE (SSCI) (IEEE) 1 - 8 2016

Joint Work

In this paper, we focus on the Werewolf Game. The Werewolf Game is an advanced communication-game in which winning or losing is directly linked to one's success or failure in communication. Therefore, we expect exponential developments in artificial intelligence by studying the Werewolf Game. In this current study, we propose a psychological model that considers multiple perspectives to model the play of a human such as inferring the intention of the other side. As one of the psychological models, we constructed a "one's self model" that models the role of others as viewed from their own viewpoint. In addition, to determine whether one's opinion is reliable after inferring other's intentions, we also constructed an "others model" that models the role of others as viewed from their viewpoints. Combining these models, we showed through experimentation that a combined approach achieved better results, i.e., higher win percentages.

Access to Document (DOI)

Constructing a Human-like agent for the Werewolf Game using a psychological model based multiple perspectives

Noritsugu Nakamura, Michimasa Inaba, Kenichi Takahashi, Fujio Toriumi, Hirotaka Osawa, Daisuke Katagami, Kousuke Shinoda

PROCEEDINGS OF 2016 IEEE SYMPOSIUM SERIES ON COMPUTATIONAL INTELLIGENCE (SSCI) (IEEE) 2016

Joint Work, Accepted

AI達は物語を生み出すか

鳥海, 不二夫, 大澤, 博隆

Proc. of JSAI (The Japanese Society for Artificial Intelligence) 2016 ( 0 ) 2F45 - 2F45 2016

Joint Work, Last author

User Generated Agent: Designable Book Recommendation Robot Programmed by Children.

Yusuke Kudo, Wataru Kayano, Takuya Sato, Hirotaka Osawa

Proceedings of the Fourth International Conference on Human Agent Interaction(HAI) (ACM) 67 - 70 2016

Joint Work, Accepted

Access to Document (DOI)

Development of Game AI by using Collective Intelligence:-Analysis of Agents in AI Wolf Contest-

鳥海, 不二夫, 稲葉, 通将, Osawa, Hirotaka, 片上, 大輔, 篠田, 孝祐, 松原, 仁

Journal of Digital Games Research (Digital Games Research Association Japan) 9 ( 1 ) 1 - 11 2016

Joint Work, Accepted, ISSN 1882-0913

The communication game "Are you a Werewolf?"can be next-generation standard problem for artificial intelligence which comes after Chess, Go or Shogi and so on. Our goal is to find "How can people enjoy playing the games with AI". For the purpose, we employ the collective intelligence method to develop AI which can play Werewolf. In this paper, we introduce the AIWolf project and game platform which designed to play Werewolf by artificial intelligence agents. Number of participated agents are 38, and 15 of them became finalists. Also, we describe about the First AIWolf contest and analyze the result of the contest. From the analysis, we found that the winner agent has significantly higher winning rate. Also, we found the relationships between roles and winning rates which are important information to develop agents.

Werewolf Game Modeling Using Action Probabilities Based on Play Log Analysis.

Yuya Hirata, Michimasa Inaba, Kenichi Takahashi, Fujio Toriumi, Hirotaka Osawa, Daisuke Katagami, Kousuke Shinoda

Computers and Games - 9th International Conference (Springer) 103 - 114 2016

Joint Work, Accepted

Access to Document (DOI)

Increase of Agent’s Internal Complexities in Mutual Trading by Delayed Reward

Osawa Hirotaka

Transactions of the Japanese Society for Artificial Intelligence (The Japanese Society for Artificial Intelligence) 31 ( 6 ) AG-H_1 - 8 2016

ISSN 13460714

Social brain theory hypothesizes that the human brain becomes larger through evolution mainly because of reading others’ intentions in society. Reading opponents’ intentions and cooperating with them or outsmarting them results in an intelligence arms race. The authors discuss the evolution of such an arms race, represented as finite state automatons, under three distinct payoff schemes and the implications of these results, which suggest that agents increase complexity of their strategies. The analyses of the high-ranking agents’ automata suggests the process to acquire complex strategy in delayed reward condition.

Automated driving, nursing, disaster prevention: How far we could entrust Artificial Intelligence?: A questionnaire survey on various stakeholders

EMA Arisa, AKIYA Naonori, OSAWA Hirotaka, HATTORI Hiromitsu, OIE Shinya, ICHISE Ryutaro, KANZAKI Nobutsugu, KUKITA Minao, SAIJO Reina, OTANI Takushi, MIYANO Naoki, YASHIRO Yoshimi

Journal of Information Processing and Management (Japan Science and Technology Agency) 59 ( 5 ) 322 - 330 2016

Accepted, ISSN 00217298

Responsible Research and Innovation (RRI) on Artificial Intelligence (AI) requires various stakeholders to discuss Human-Machine relations in the near future. Therefore, we conducted questionnaire surveys twice in December 2015 and February 2016. The first survey was for researchers on AI, social sciences and humanities (SSH) researchers, policy makers, SF (science fiction) writers and the public. The second survey was for AI researchers working at private industries, media, and other specialties such as law and religion. The results indicate that respondents were positive about introducing AI that requires social consensus such as driving, disaster prevention and military activities scenarios compared to others. On the other hand, scenarios that requires personal decision making such as life events tended to answer that humans take the initiatives and use AI as a tool. Being aware of the differences will enhance the implementation of AI in a variety of scenarios.

Interdisciplinary studies on pareidolia

Takahashi Kohske, Kitamura Miho, Kaji Yuichi, Tomonaga Masaki, Nishio Yoshiyuki, Osawa Hirotaka, Kitagawa Norimichi

The Proceedings of the Annual Convention of the Japanese Psychological Association (The Japanese Psychological Association) 79 ( 0 ) SS-101 - SS-101 2015.09

コミュニケーションゲーム「人狼」を演じるロボットエージェントの作成

栢野航, 工藤佑介, 大澤博隆, 片上大輔, 鳥海不二夫, 稲葉通将, 篠田考祐

エンタテインメントコンピューティングシンポジウム2015論文集 2015 538 - 539 2015.09

コミュニケーションゲーム人狼は，相手の意図を推理し，相手を説得するという社会的な知能を要請される課題である．人狼をプレイするのではなく，人間同士が演じているのを観戦するという楽しみ方もある．本研究では，人狼をロボットエージェント同士で演じるために必要な振る舞いを，人狼の特徴から検討した．あわせて，人狼における動作を再現するためのエージェントのプロトタイプを作成した．

コミュニケーションゲーム「人狼」を達成するロボットエージェントの設計要件

大澤博隆, 栢野航, 片上大輔

電子情報通信学会技術研究報告 = IEICE technical report : 信学技報 (東京 : 電子情報通信学会) 115 ( 118 ) 11 - 14 2015.06

ISSN 09135685

実空間と仮想空間を移動する擬人化エージェントを用いた複合機の機能説明

栢野,航, 大澤,博隆, 遠藤,航, 丹波,正登, 守谷,友里, 結城,明, 長野,正

インタラクション２０１５ 2015.03

Joint Work

橙色の屋根のお家: 発達障害を持つ子ども向けのデジタルプレイセラピーの提案

渡辺柚佳子, 樫村健人, 岡田佳子, 大澤博隆, 菅谷みどり

IPSJ SIG technical reports (Information Processing Society of Japan (IPSJ)) 2015 ( 24 ) 1 - 8 2015.02

ISSN 09196072

Children who are suffering on learning and developmental disabilities need daily trainings for social skills. However, such daily training is not provided occasionally because it requires interactive helps from therapists. In this paper, we propose a digital dollhouse that extended the traditional psychological play therapy equipped with digital sensors and computer graphics. This device aimed at raising the communication skills even if the superintendent of training is not a therapist. We have developed proposed digital play therapy device. Our device's CG function reproduces the reality. Abstract image is visualized by using our device. Based on the device, we discussed the usefulness of the device with the therapist, and the policy and metrics for the evaluation of the functionalities that are expected for the skill's training.

知能が育む社会・社会が育む知能(<特集>編集委員会企画-社会とAIの羅針盤2015-)

大澤,博隆

journal of the Japanese Society for Artificial Intelligence (The Japanese Society for Artificial Intelligence) 30 ( 1 ) 18 - 19 2015.01

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

Project AI Wolf

KATAGAMI Daisuke, TORIUMI Fujio, OSAWA Hirotaka, INABA Michimasa, SHINODA Kosuke, MATSUBARA Hitoshi, Daisuke Katagami, Fujio Toriumi, Hirotaka Osawa, Michimasa Inaba, Kosuke Shinoda, Hitoshi Matsubara

Journal of the Japanese Society for Artificial Intelligence (The Japanese Society for Artificial Intelligence) 30 ( 1 ) 65 - 73 2015.01

Joint Work, ISSN 2188-2266

Announcement about the Renewal of the Cover Design of "Artificial Intelligence" with Summarizing Opinions and Arguments of the Cover Design(Article)

OSAWA Hirotaka, Hirotaka Osawa

Journal of the Japanese Society for Artificial Intelligence (The Japanese Society for Artificial Intelligence) 30 ( 1 ) 2 - 6 2015.01

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

Spirits in nature and machines -interdisciplinary approach for animism-

Ban Midori, Takahashi Hideyuki, Ikeuchi Hiromi, Osawa Hirotaka, Okuno Katsumi, Kasaki Masaki, Kozima Hideki

The Proceedings of the Annual Convention of the Japanese Psychological Association (The Japanese Psychological Association) 79 ( 0 ) SS - 065-SS-065 2015

Joint Work

Being Provocative for Cognitive Science

Osawa Hirotaka

Cognitive Studies (Japanese Cognitive Science Society) 22 ( 4 ) 545 - 546 2015

Single Work, Lead author, Last author, Corresponding author, ISSN 1341-7924

Estimation of Own State by Opponent's Behavior in Cooperative Game Hanabi

大澤,博隆

人工知能学会全国大会 (The Japanese Society for Artificial Intelligence) 29 ( 0 ) 1 - 4 2015

Single Work, Lead author, Last author, Corresponding author, ISSN 1347-9881

本研究では人工知能応用の一つとして、自分のカードが見えない状況下で相手と協力しカードを順番に揃える協力ゲームHanabiを解く。本ゲームでは相手に教えられる情報に制限があり、プレイヤは限られた情報から相手の意図を理解し、自己のカード推測と行動決定を行う。本研究ではHanabiの代表戦略をいくつか検討し、計算機上でシミュレートすることで、エージェント間でどのように協調行動が起きうるか分析した。

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