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IIS Lab
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The lab supports people's intellectual activities and health through intelligent interactive systems.
AboutAbout the lab
Think boldly, execute precisely.
IIS Lab (Yatani Lab) studies how people interact with computers.
The lab designs, implements, and evaluates intelligent interactive systems, aiming to support people's intellectual activities and healthy lives.
It explores how users can make the most of information infrastructure such as artificial intelligence, big data, and IoT.
Its research is built on three pillars: human-computer interaction, human-AI collaboration, and ubiquitous computing.
Key terms
- Human-Computer Interaction
- A research field that designs the interaction between people and computers and examines how usable and effective it is
- Ubiquitous Computing
- An approach that aims for a state in which computers are embedded in everyday objects and can be used anytime, anywhere
- Usable Security
- Security mechanisms and designs that remain safe while letting users operate them without confusion
NewsLab news
A student who completed the master's program received the Convention Excellence Award at the Information Processing Society of Japan (IPSJ) National Convention
A paper received the Honorable Mention Award at the international conference CHI 2026
A paper was accepted to the international conference CHI 2026
Received the Outstanding Paper Award and the Student Encouragement Award at the IPSJ SIG on Ubiquitous Computing Systems (UBI)
ResearchResearch themes
The lab designs, implements, and evaluates intelligent interactive systems with the aim of enhancing people's well-being. It pursues a broad range of research on interfaces and interactive systems, including human-AI collaboration, sensing, and usable security.
*Illustrative imageThought-Provoking AI
The lab studies human-AI interaction that promotes higher-order thinking, such as critical thinking and creative thinking, used in the cognitive processes of analysis, evaluation, and creation.
*Illustrative imageHuman-AI Collaboration
The lab works on human-AI collaboration that enhances people's well-being, intellectual productivity, and creativity. In particular, it studies interactive environments that integrate multiple AI agents.
*Illustrative imageDigital Healthcare
The lab studies new digital healthcare applications that use sensing technology and artificial intelligence. Its work includes assessing oral and swallowing function through smartphone image recognition.
*Illustrative imageUsable Security
The lab studies the design of easy-to-use security systems and interfaces. It is building interfaces that highlight unusual clauses in terms of service, and bot detection systems that incorporate learning.
MembersFaculty
IIS Lab consists of faculty members, postdoctoral researchers, doctoral, master's, and undergraduate students, and collaborators and visiting researchers.As of 2026
- ProfessorKoji YataniPublications ↗
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Piqsels.com-id-zbxec” piqsels / CC0 (cropped)
- Thought-Provoking AI: “BloomsTaxonomy” Corydave / CC0 (cropped)
- Human-AI Collaboration: “Example of Multi-Agent Path Finding in a grid environment” BenedettaFlam / CC BY-SA 4.0 (cropped)
- Digital Healthcare: “Vital signs monitor display” Petty Officer 1st Class James Stenberg / Public domain (cropped)
- Usable Security: “Panorama-captcha-idea” Pau Giner / CC BY-SA 3.0 (cropped)
- Related lab (Kawahara Lab): “Printed flexible electronics ( )” Oak Ridge National Laboratory / CC BY 2.0 (cropped)
- Related lab (Minematsu-Saito Lab): “Long-window reassigned spectrogram of speech” Kelly Fitz / CC BY-SA 3.0 (cropped)
- Related lab (Matsuura Lab): “BalticServers data center” BalticServers.com / CC BY-SA 3.0 (cropped)
- Related lab (Irie-Kadomoto Lab): “12-inch silicon wafer” Peellden / CC BY-SA 3.0 (cropped)
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