Welcome to the webpage of Interactive Intelligent Systems Laboratory (IIS Lab, pronounced like “ease lab”) at The University of Tokyo. We are in Department of Electrical Engineering and Information Systems (EEIS), School of Engineering and Emerging Design and Informatics Course, Interfaculty Initiative in Information Studies. We are a group led by Koji Yatani, conducting a broad range of research on Human-Computer Interaction and Ubiquitous Computing. We mostly work on technology-oriented and application-focused HCI research although projects generally include quantitative/qualitative user studies. Thus, lab members work hard on coding and hardware prototyping as well as understanding machine learning/statistical methods and conducting psychological or sociological user studies. We strive to create a research environment where students can accumulate a broad range of experience and knowledge about interactive system design through research projects.

インタラクティブ・インテリジェント・システム ラボ(Interactive Intelligent Systems Laboratory; IIS Lab; イーズラボ)のホームページへようこそ!IIS Labは大学院では工学系研究科電気系工学専攻学際情報学府先端表現情報学コース,学部では工学部電子情報工学科に所属しています.このラボは矢谷浩司をはじめとした研究者・学生が集まり,ヒューマン・コンピュータ・インタラクションやユビキタス・コンピューティンに関する様々な研究を行っています.特に技術開発とアプリケーションを重視したHCI研究を行っていますが,質・量的なユーザ実験を行うことも多いです.このため,プログラミングやハードウェア実装だけではなく,統計的手法や機械学習,心理学・社会学的なユーザ実験手法も実践することが研究プロジェクトでは求められます.インタラクティブなシステムの設計に関する幅広い知識と経験を研究プロジェクトを通して養ってもらえる研究環境を目指しています.


Research domains / 研究領域

We are looking for highly-motivated, energetic researchers and students who want to work with us. If you are interested in the following topics or just want to visit us, please feel free to ping Koji at [his_first_name] “at” iis-lab.org. If you are considering to work with us, please attach your CV and a short statement of what you would like to work on (preferred in English). For more details, please check this page.

  • Usable security systems with novel sensing methods,
  • Sensing technologies to enable new applications for mobile/wearable devices,
  • Interactive systems for productivity and creativity support with machine learning and statistical data analysis,
  • Mobile/wearable systems for personal healthcare and accessibility, and
  • Anything else about interfaces or interactive systems which you believe that could change the game. 🙂

進学や研究室配属を決める前であっても,IIS Labに興味のある人はラボの活動や雰囲気を見に是非遊びに来てください.以下のトピックに興味のある方やラボにお越しになりたい方は,遠慮なく矢谷までメールにてご連絡ください.(メールアドレスは[矢谷の下の名前] “at” iis-lab.org). IIS Labでの研究を志望する方はCVとどんな研究したいかを簡潔に記述したもの(できれば英語)を添付してください.詳細はこちらのページをご覧ください.

  • 新しいセンシング技術を利用した使いやすいセキュリティシステム
  • モバイル・ウェアラブルデバイスにおける新しいアプリケーションを実現するようなセンシング技術,
  • 機械学習や統計的手法を用いた生産性(プロダクティビティ)や創造性(クリエイティビティ)を支援するインタラクティブなシステム,
  • 健康的な生活を支援したり,障がいを持つユーザを助けたりするモバイル・ウェアラブルなシステムやアプリケーション,
  • そのほか,世界を変えられると思うインタフェースやインタラクティブなシステムなんでも 🙂


Mission Statement / IIS Labのミッション

The mission of Interactive Intelligent Systems Laboratory (IIS Lab) is to improve people’s QOL (quality of life) through intellectual activities and healthy life enhanced by interactive systems with intelligence behind we design, implement, and evaluate. Complexity of data, information, and contexts surrounding people are well beyond human cognitive capabilities. Advanced computing infrastructure, including artificial intelligence, big data, and Internet of Thing (IoT), becomes available, and can offer strong power of data collection and computation. However, it is still people who decide how to utilize such infrastructure and data. As a group of experts in Human-Computer Interaction, we strive to explore novel applications exploiting emerging computer technologies and information sources and uncover their new values. In particular, our applications aim to support people to commit more to higher-level intellectual activities and healthy life, leading to encouraging grass-root effort for making the world better.

インタラクティブ・インテリジェント・システム ラボラトリー(IIS Lab)では,私たちが設計,実装,評価する知的なインタラクティブシステムによって支援される人間の知的活動・健康的生活を通して,人々のQOL(quality of life)を向上させることをミッションとしています.人々を取り巻くデータや情報,状況は複雑になり,人間の情報処理能力を大きく超えています.さらに近年では,人工知能,ビッグデータ,IoTなどといった情報基盤が利用できるようになり,強力なデータ収集と計算能力を提供しています.しかし,それらをどのように活用するかは,利用者である人間が決めなければなりません.ヒューマンコンピュータインタラクションのエキスパート集団として,そのような新しい技術を活用した新たなアプリケーションを生み出し,技術の新たな価値を創生していくことを私たちは目指しています.特に私たちが開発するアプリケーションを通して,人々がより高いレベルの知的活動やより健康的な生活を実現することに貢献し,さらに個人個人が世界をよくすることに貢献していける未来を私たちは目指しています.



橋爪が専攻のポスター発表においてBest Poster Awardを受賞しました.

橋爪(M2)が専攻内の輪講におけるポスター発表でBest Poster Awardを受賞しました.

A paper accepted for an oral presentation at MM 2017!

Our paper has been accepted for an oral presentation at Multimedia 2017

Multimedia 2017において以下のフルペーパーの論文が口頭発表にて採択されました.

Haojian Jin, Yale Song, Koji Yatani. ElasticPlay: Interactive Video Summarization with Dynamic Time Budgets.

Presenting a paper at ICME 2017!

Shunya (our former master student) is presenting the following paper as a poster presentation at ICME 2017.

卒業生の有賀がICME 2017にて以下のフルペーパーの論文をポスター発表いたします.

Shunya Ariga, Masataka Goto, Koji Yatani. Strummer: An Interactive Guitar Chord Practice System.

Koji got interviewed!



An intern has joined IIS Lab.

An intern, Rishabh Shrivastava, joined our lab. Welcome!


矢谷が2017年5月号の情報処理学会誌に,「選択する自由,選択する責任 -大学教員になって感じたこと-」というタイトルで寄稿をさせていただきました.(pdf)

Welcome, new members!

6 undergraduate students join IIS Lab. Welcome!

学部生6名が新たにIIS Labに加わりました.


2 master students and 6 undergraduate students graduated this month. Congratulations!




柴藤大介."Interactive Piece-level Code Examination Using Diffs and Review Comments" (差分とレビューコメントを用いたソースコードのインタラクティブな局所的調査手法)




有薗拓也,橋爪崇弘,矢谷浩司.「 重心移動が可能なダンベル型デバイスの製作とその知覚に関する実験」(学生奨励賞)















Koji is serving for UIST 2017 as a program committee member.

Koji is serving for UIST 2017 as a program committee member.


Koji is serving for UbiComp 2017 as a sponsorship co-chair.

Koji is serving for UbiComp 2017 as a sponsorship co-chair.


Koji is serving for PACM IWMUT as an Editor.

Koji is serving for PACM IWMUT as an Editor. PACM IWMUT is a new journal series that accepts work in interactive, wearable, mobile, and ubiquitous computing. Accepted papers are also invited to presentations at UbiComp. So please submit your greatest work to IMWUT!

矢谷が新しくできた論文誌PCAM IWMUTのエディターを務めます.IWMUTに採択された論文はUbiCompでの発表にも招待されますので,ぜひご投稿下さい!





We presented at UbiComp 2016.

Takuma Yoshitani and Takahiro Hashizume presented two papers at UbiComp 2016.


Takuma Yoshitani, Masa Ogata, and Koji Yatani. LumiO: a plaque-aware toothbrush.

Takahiro Hashizume, Takuya Sasatani, Koya Narumi, Yoshiaki Narusue, Yoshihiro Kawahara, and Tohru Asami. Passive and contactless epidermal pressure sensor printed with silver nano-particle ink.

Koji is serving for CHI 2017 as an associate chair.

Koji is serving for CHI 2017 as an associate chair for the Interaction techniques, Devices and Modalities subcommittee.

CHI2017のInteraction techniques, Devices and Modalitiesサブコミッティのプログラム委員として矢谷が参加します.


Our university festival app is now available!

Our lab members have created an app for our university festival. You can download from the following links.

IIS Labメンバーが五月祭向けアプリを作り,公開しました.以下のリンクからどうぞ.

For iPhone

For Android

Won a Best Paper award at CHI 2016!

We won a Best Paper award at CHI 2016 with Minsam Ko, Seung-woo Choi, and Uichin Lee at KAIST.

KAISTの研究者(Minsam Ko,Seung-woo Choi,Uichin Lee)とともにCHI2016にてBest Paper awardを受賞しました.

Komaba-sai university festival app is now available!

Our lab members have published an app for our university festival. You can download from the following links.

IIS Labメンバーが駒場祭向けアプリを作り,公開しました.以下のリンクからどうぞ.

For iPhone

For Android

A technical paper presentation at SIGGRAPH Asia 2015 and we are on Wired!

We have the following paper at SIGGRAPH Asia 2015. This work is in collaboration with Jun and Li-Yi from University of Hong Kong, and Takaaki from Microsoft Research. We are also featured on Wired.

SIGGRAPH Asia 2015にてUniversity of Hong KongのJunとLi-Yi,Microsoft Researchの白鳥さんとの共同研究成果を発表します.またWiredで取り上げられました.

Jun Xing, Li-Yi Wei, Takaaki Shiratori, and Koji Yatani. Autocomplete Hand-drawn Animations.

(Program webpage), (video)


Largest UbiComp/ISWC ever!

Koji served as a Program co-Chair for UbiComp this year, and we had the largest number of registrations! Thank you all for coming to the conference!

私が共同プログラム委員長を務めたUbiComp 2015が無事に閉幕し,過去最大の登録者数を集めました.会議にお越し下さった皆様,ありがとうございました.

Open lab for high school students

We have open labs including demos of information visualization systems created by lab members for high school students.


Our university festival app is now available!

Our lab members and third-year undergraduates have created an app for our university festival. You can download from the following links.

IIS LabメンバーとB3の学生さんが五月祭向けアプリを作り,公開しました.以下のリンクからどうぞ.

For iPhone

For Android

A full-paper presentation at CHI 2015

We present a full-paper of work in collaboration with researchers in Microsoft Research at CHI 2015.

CHI 2015にてMicrosoft Researchの研究者との共同研究の成果をフルペーパーとして発表します.

Darren Edge, Sumit Gulwani, Natasa Milic-Frayling, Mohammad Raza, Reza Adhitya Saputra, Chao Wang, and Koji Yatani. Mixed-Initiative Approaches to Global Editing in Slideware. In Proceedings of CHI 2015.

Koji is serving as a Program Committee for UIST 2015

Koji Yatani will be serving as a Program Committee for UIST 2015.

UIST 2015に矢谷がプログラム委員として参加します.

Welcome, new members!

IIS Lab welcomes three Master students this month. We and Aida Lab welcome eight undergraduates.

IIS Labに修士課程の学生さんが3名加わりました.また相田研と共同で8人の学部生を迎えることになりました.

A full-paper presentation at CSCW 2015

We present a full-paper of work in collaboration with professors and students in KAIST at CSCW 2015.

CSCW 2015にてKAISTの先生・学生さんと共同研究の成果をフルペーパーとして発表します.

Minsam Ko, Subin Yang, Joonwon Lee, Christian Heizmann, Jinyoung Jeong, Uichin Lee, Daehee Shin, Koji Yatani, Junehwa Song, and Kyong-Mee Chung. 2015. NUGU: A Group-based Intervention App for Improving Self-Regulation of Limiting Smartphone Use. In Proceedings of the 18th ACM Conference on Computer Supported Cooperative Work & Social Computing (CSCW '15). ACM, New York, NY, USA, 1235-1245.

Koji is serving as a Program Committee for Mobiquitous 2015

Koji Yatani will be serving as a Program Committee for Mobiquitous 2015.

Mobiquitous 2015に矢谷がプログラム委員として参加します.

Asian CHI symposium at CHI 2015

My friends and I are organizing a symposium at CHI 2015 to showcase exciting latest research from Japan.


Symposium website: http://hci.tokyo/

Koji is serving as a Program co-Chair for UbiComp 2015

UbiComp2015 will be held in Osaka, and Koji Yatani will be serving as a Program co-Chair.


Two honorable mention awards at MobileHCI 2014

Our ReviewCollage (in collaboration with Haojian Jin and Tetsuya Sakai) and TalkZones (in collaboration with Bahador Saket, Sijie Yang, Hong Tan, and Darren Edge) projects won Honorable Mention Awards at MobileHCI 2014. Our papers will be available on this website soon.

ReviewCollage(Haojian Jin,Tetsuya Sakaiと共著)とTalkZones(Bahador Saket,Sijie Yang,Hong Tan,Darren Edgeと共著)の論文がMobileHCI 2014にてHonorable Mention Award(最優秀論文ノミネート)を受賞しました.

IIS Lab launched!

IIS Lab has been launched on August, 2014.

IIS Labは2014年8月に発足しました.