Details of a Researcher - OSAWA Hirotaka

Papers - OSAWA Hirotaka

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Realizing atmosphere of discussion of werewolf by AI werewolf

Katagami,Daisuke, Kobayashi,Yu, Toriumi,Fujio, Osawa,Hirotaka, Inaba,Michimasa, Shinoda,Kosuke

Proceedings of the Fuzzy System Symposium (Japan Society for Fuzzy Theory and Intelligent Informatics) 31 ( 0 ) 370 - 374 2015

Joint Work, ISSN 1882-0212

In this paper, we aim to acquire advanced skill in conversation by playing werewolf mediated with lifelike agents. The space of discussion between humans mediated with lifelike agents is realized. We developed the system which makes us play Werewolf with AI werewolves. We conducted experiments that a subject plays werewolf with AI werewolves and identifies AI werewolves in the game. As the result, we confirmed the importance of non-verbal information in the conversation space of werewolf.

Animacy perception of agents: Their effects on users behavior and variability between age groups.

Riko Hasegawa, Etsuko T. Harada, Wataru Kayano, Hirotaka Osawa

2015 24TH IEEE INTERNATIONAL SYMPOSIUM ON ROBOT AND HUMAN INTERACTIVE COMMUNICATION (RO-MAN) (IEEE) 106 - 111 2015

Joint Work, Last author, Accepted

Autonomous agents and/or robot embodiments are frequently introduced to a complex system in expectation of eliciting user behavior similar to human-human interaction with the target system. The current study examines the process and factors involved in this type of interaction. As a first step, we conducted a psychological experiment to examine animacy perception of the agent and its effects on user interaction with the system, here a microwave oven, comparing among three conditions: an embodied condition (with anthropomorphic robot features called agent triggers), a voice agent condition, and a control condition (no-agent condition). Additionally, we investigated differences between responses by age groups. Results showed two types of animacy, lifelikeness and intelligence; older and younger adults responded quite differently to the two agents conditions, which indicated that older adults placed more values on embodied agents. Hypothetical models of animacy perception in younger and older adults and their behaviors in interaction with the system implied the importance of perceived individuality of an agent and background knowledge an agent's function and abilities.

Access to Document (DOI)

Animacy Perception of agents: Their effects on users behavior and variability between age groups

Riko Hasegawa, Etsuko T. Harada, Wataru Kayano, Hirotaka Osawa

2015 24TH IEEE INTERNATIONAL SYMPOSIUM ON ROBOT AND HUMAN INTERACTIVE COMMUNICATION (RO-MAN) (IEEE) 106 - 111 2015

Joint Work, Last author, Accepted

プレイログから獲得した行動選択確率を用いた人狼ゲームのシミュレーション

平田, 佑也, 稲葉, 通将, 高橋, 健一, 鳥海, 不二夫, 大澤, 博隆, 片上, 大輔, 篠田, 孝祐

Proc. of JSAI (The Japanese Society for Artificial Intelligence) 2015 ( 0 ) 1F21 - 1F21 2015

Joint Work, ISSN 13479881

<p>本研究ではコミュニケーションゲームとして知られる「人狼」をプレイできるエージェントの構築を目指している．人間同士での人狼プレイログから，プレイヤー自身がどのように振る舞うか，他プレイヤーに対してどのような判断を下すのかといった情報を取得し，任意のゲーム状況における行動の選択確率を求めた．これを用いて人狼エージェントを作成し，人間同士でのゲーム結果と似たものとなるか，シミュレーションを行った．</p>

E-Gaze: Create Gaze Communication for People with Visual Disability.

Shi Qiu, Hirotaka Osawa, Jun Hu 0001, Matthias Rauterberg

Proceedings of the 3rd International Conference on Human-Agent Interaction(HAI) (ACM) 199 - 202 2015

Joint Work, Accepted

Access to Document (DOI)

Animacy perception of systems with agency

Hasegawa,Riko, Harada,Etsuko T, Kayano,wataru, Osawa,Hirotaka

Proceedings of the Japanese Society for Cognitive Psychology (The Japanese Society for Cognitive Psychology) 2015 ( 0 ) 5 - 5 2015

Joint Work, Last author, Accepted

Embodied agents quipped to the information systems make communication between users and agents more smoothly, which in turn lead users to more high order usage. We have a hypothesis that human-like interaction with agents may be based on user's perceptions of animacy to the agent. In order to investigate whether users perceiving animacy to the agents or not, and also to know how those animacy perception will be affected by the physical embodiment of agent, we executed an experiment to compare three agent conditions with a microwave oven: the embodied condition equipped with the antheropomorphization robots shaped eyes and arms, the voice_only condition equipped with the agent's voice, and the control condition without agent. Each of 36 participants who were older adults (aged over 65) and younger adults (undergrad students) executed the usability test of the oven and evaluated the subjective perceptions of its animacy. The result showed two type of animacy; lifelikeness and intelligence. Older adults showed increasing with both types of animacy when the agent had the embodiment, whereas younger adults decreased evaluation of intelligence with the physical embodiment. Based on the d

User-defined gestures for controlling primitive motions of an end effector.

Mahisorn Wongphati, Hirotaka Osawa, Michita Imai

Adv. Robotics (TAYLOR & FRANCIS LTD) 29 ( 4 ) 225 - 238 2015

Joint Work, Accepted, ISSN 0169-1864

In designing and developing a gesture recognition system, it is crucial to know the characteristics of a gesture selected to control, for example, an end effector of a robot arm. We conducted an experiment to collect a set of user-defined gestures and investigate characteristics of the gestures for controlling primitive motions of an end effector in human-robot collaboration. We recorded 152 gestures from 19 volunteers by presenting virtual robotic arm movements to the participants, and then asked the participants to think about and perform gestures that would cause the motions. It was found that the hands were the parts of the body used most often for gesture articulation even when the participants were holding tools and objects with both hands: a number of participants used one- and two-handed gestures interchangeably, gestures were consistently performed by the participants across all pairs of reversible gestures, and the participants expected better recognition performance for gestures that were easy to think of and perform. These findings are expected to be useful as guidelines in creating a gesture set for controlling robotic arms according to natural user behaviors.

Access to Document (DOI)

Solving Hanabi: Estimating Hands by Opponent's Actions in Cooperative Game with Incomplete Information.

Hirotaka Osawa

AAAI workshop: Computer Poker and Imperfect Information (AAAI Press) 37 - 43 2015

Single Work, Lead author, Last author, Corresponding author, Accepted

Responsive Mouth: Enhancing Your Emotional Skill with Partial Agency.

Hirotaka Osawa

Proceedings of the Tenth Annual ACM/IEEE International Conference on Human-Robot Interaction (ACM) 299 - 299 2015

Single Work, Lead author, Last author, Corresponding author, Accepted

Access to Document (DOI)

Proceedings of the 3rd International Conference on Human-Agent Interaction, HAI 2015, Daegu, Kyungpook, Republic of Korea, October 21-24, 2015

HAI (ACM) 2015

Joint Work, Accepted

Access to Document (DOI)

Movement design of a life-like agent for the werewolf game.

Daisuke Katagami, Masashi Kanazawa, Fujio Toriumi, Hirotaka Osawa, Michimasa Inaba, Kousuke Shinoda

2015 IEEE International Conference on Fuzzy Systems(FUZZ-IEEE) (IEEE) 1 - 7 2015

Joint Work, Accepted

Access to Document (DOI)

How are interaction between human and an autonomous agent affected by embodiments and voice?: Investigation with age groups comparison.

Etsuko T. Harada, Riko Hasegawa, Wataru Kayano, Hirotaka Osawa

Proceedings of the 37th Annual Meeting of the Cognitive Science Society(CogSci) (cognitivesciencesociety.org) 2015

Joint Work, Accepted

Gestures for Manually Controlling a Helping Hand Robot.

Mahisorn Wongphati, Hirotaka Osawa, Michita Imai

Int. J. Soc. Robotics (SPRINGER) 7 ( 5 ) 731 - 742 2015

Joint Work, Accepted, ISSN 1875-4791

Helping hand robots have been the focus of a number of studies and have high potential in modern manufacturing processes and for use in daily living. As helping hand robots interact closely with users, it is important to find natural and intuitive user interfaces for interacting with the robots in various situations. This study describes a set of gestures for interacting with and controlling helping hand robots in situations in which users need to manually control the robot but both hands are not available, for example, when users are holding tools or objects in their hands. The gestures are derived from an experimental study that asked participants for gestures suitable for controlling primitive robot motions. The selected gestures can be used to control translation and orientation of an end effector of a helping hand robot when one or both hands are engaged with tasks. As an example for validating the proposed gestures, we implemented a helping hand robot system to perform a soldering task.

Ethics and Social Responsibility: Case Study of a Journal Cover Design Under Fire.

Arisa Ema, Hirotaka Osawa, Hiromitsu Hattori, Naonori Akiya

Proceedings of the 33rd Annual ACM Conference Extended Abstracts on Human Factors in Computing Systems (ACM) 935 - 940 2015

Joint Work, Accepted

Access to Document (DOI)

人の適応性を支える環境知能システムの構築

IMAI MICHITA

人工知能 31 43 - 39 2015

Development of Werewolf Match System for Human Players Mediated with Lifelike Agents

Yu Kobayashi, Hirotaka Osawa, Michimasa Inaba, Kousuke Shinoda, Fujio Toriumi, Daisuke Katagami

Proceedings of the second international conference on Human-agent interaction(HAI) (ACM) 2014 ( 2014 ) 133 - 134 2014.10

Joint Work

本研究では,若者の対話教育のための対話支援環境として,擬人化エージェントを用いた人狼対戦システムを提案した.他者の推測と信頼を得る発話が必要となる対話ゲーム「人狼」を使い,人間とエージェントが混在する多人数環境で,1対多の説得技法を学ぶ.人狼知能エージェントの開発とその成果を通して,会話能力を鍛え,自らの意見を論理的に組み立て,発信する若者を育てる教育方法を開発することを本研究の目的とする.

人狼知能サーバの構築

鳥海不二夫, 梶原健吾, 大澤博隆, 稲葉通将, 片上大輔, 篠田孝祐

ゲームプログラミングワークショップ2014論文集 2014 127 - 132 2014.10

人工知能を用いたゲームをプレイするエージェントは数多く開発されているが，現在までに，人工知能が人間に勝利しているテーブルゲームの多くは全ての情報が公開されている完全情報ゲームである．それに対して，ゲームの中には情報が完全には公開されておらず，情報の被均一性がゲーム性を演出する不完全情報ゲームや，ゲームの本質がプレイヤ同士の自由対話や交渉によって実現されるコミュニケーションゲームがある．本研究では，不完全情報コミュニケーションゲームである人狼ゲームをエージェントがプレイするサーバを構築し，人とエージェント，エージェントとエージェントがそれぞれゲームをプレイする環境を整える．

人狼知能達成におけるエージェントの推論モデル

大澤博隆, 鳥海不二夫, 稲葉通将, 片上大輔, 梶原健吾, 篠田孝祐

ゲームプログラミングワークショップ2014論文集 2014 157 - 161 2014.10

著者らは人工知能によって人狼というゲームを解くことを目標としている。人狼ゲームを解くためには、他者の意図を記述し、自己や他者の心的モデルを記述し、扱えるような手法が必要となる。本研究では BDI 論理を用いたエージェントの推論記述法を提案した。また、実際の人狼プレイログを用いて、このような BDI 論理でどのような記述が可能となるか検証した。

議論の構造に着目した人狼ゲームの分析

稲葉通将, 大澤博隆, 片上大輔, 篠田孝祐, 鳥海不二夫

ゲームプログラミングワークショップ2014論文集 2014 61 - 66 2014.10

人狼ゲームのプレイヤーは，相手から自分がどう見られるのかを考慮しつつ，他のプレイヤーの思惑を推理し，交渉・説得を行っていく必要がある．本研究では，人間らしく振る舞う人狼ゲームエージェント実現に役立つ知識の獲得のため，実際に人間同士で行われた人狼ゲームにおける議論の構造に着目した分析を行う．議論の構造を踏まえた分析を行うため，まず各発話に対してタグ付与を行う．次に，そのタグ間の関係を捉えることで，提示された意見に対する「同調」と「反駁」という観点から議論の分析を行う．

Evaluating Tip Shape of Robotic Arm for Anthropomorphic Explanation of Home-appliances

KAYANO Wataru, OSAWA Hirotaka, HASEGAWA Riko, HARADA Etsuko

電子情報通信学会技術研究報告. CNR, クラウドネットワークロボット (The Institute of Electronics, Information and Communication Engineers) 114 ( 227 ) 11 - 14 2014.09

Joint Work, ISSN 0913-5685

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