Orientation for ubi-lab candidate

We are holding an orientation and a freshman welcome event for new students who have been accepted to the Ubiquitous Computing Systems Laboratory on the following schedule.

April 3, 4:00 pm @A407(Information Science Building 4F)
Mandatory for everyone

April 4, 11:00 am @In front of the convenience store
(BBQ)Optional participation

…..

Rental of Personal Workstation (MacBookAir)

NAIST provides a personal workstation (MacBookAir) to all students.Please let us know if you wish to join.

• TBA

If other lab’s candidates have an interest in ubi-lab:

If you are a candidate assigned to other laboratories, but you are interested in ubi-lab, please send email to ubi-staff@is.naist.jp (ubi-lab’s staff). We will arrange meeting with you.

Oral Presentation

• Yona Zakaria, Chouman Hussein, Rui Ishiyama, Eiki Ishidera, Tomokazu Matsui, Hirohiko Suwa, Keiichi Yasumoto:
  “Web Image Collection and LLM-Based Labeling to Provide Dynamic References for Visual Inspection of Drug Packaging,”
  The 9th IIEEJ International Conference on Image Electronics and Visual Computing (IEVC 2026), Hiroshima, Japan, 2026.

Oral Presentation

• Kota Kotegawa, Kentaro Ueda, Ren Hosokawa, Yuki Ogawa, Eichi Umehara, Kota Tsubouchi, Keiichi Yasumoto, Hirohiko Suwa:
  “Faithful and Plausible Explanations for Market Prediction from Noisy Forum Posts via XAI–LLM Hybrid Rationale Selection,”
  The 21st International Conference on Persuasive Technology 2026 (Persuasive 2026 Late Breaking Result), Hokkaido, Japan, 2026. 
• Sachiko Enomoto, Hirohiko Suwa, Keiichi Yasumoto:
  “Optimizing Daily Activity Planning in a Behavioral Change Support System to Improve Older Adults’ Quality of Life,”
  The 21st International Conference on Persuasive Technology 2026 (Persuasive 2026 Workshop, BTI3), Hokkaido, Japan, 2026. 
• Carolin Schindler, Niklas Rach, Yuki Matsuda, Wolfgang Minker, Keiichi Yasumoto:
  “Estimating Subjective Persuasion Effectiveness in Symmetric Human-Agent Dialogues,”
  The 21st International Conference on Persuasive Technology 2026 (Persuasive 2026 Workshop, PPT), Hokkaido, Japan, 2026. 

Poster Presentation

• Tsukasa Kojo, Wataru Sasaki, Yuki Matsuda, Kota Tsubouchi, Keiichi Yasumoto, Hirohiko Suwa:
  “Toward a Participatory Trace-Sensing Framework Using Smartphone LiDAR for Wildlife Habitat Estimation,”
  The 21st International Conference on Persuasive Technology 2026 (Persuasive 2026 Poster), Hokkaido, Japan, 2026.
• Kotomi Wakayama, Tomokazu Matsui, Hirohiko Suwa, Keiichi Yasumoto:
  “A Counterfactual Stress Management System for Lifestyle Behavior Change Using Activity Logs,”
  The 21st International Conference on Persuasive Technology 2026 (Persuasive 2026 Poster), Hokkaido, Japan, 2026.
• Sergio De Leon, Keiichi Yasumoto, Yuki Matsuda:
  “Exploring UX Frustration Recognition using Stress Recognition Models and Lightweight Biosignal Features,”
  The 21st International Conference on Persuasive Technology 2026 (Persuasive 2026 Poster), Hokkaido, Japan, 2026. 

The Open Campus for prospective students at the Nara Institute of Science and Technology (NAIST) will be held on Saturday, February 28, 2026.

For general information about the Open Campus, please visit:
https://www.naist.jp/admission/opencampus_ps/202602/#event

In conjunction with this event, the Ubiquitous Computing Laboratory will host individual lab information sessions. In addition to an introduction to our research activities, this will be a valuable opportunity to speak directly with faculty members. You are welcome to ask questions about research topics, graduate life, and other related matters.

■ Date & Time

Saturday, February 28, 2026

• 13:00
• 14:30
  (Both sessions will cover the same content.)

■ Venue

Room A407, 4th Floor, Information Science Building A
Ubiquitous Computing Laboratory, NAIST

We look forward to welcoming you.

Work-in-Progress

• Shuhei Kosaka, Keiichi Yasumoto, Tomokazu Matsui, Hirohiko Suwa, Wataru Sasaki, Daisuke Wakao, Sumio Morioka, Takahiro Inagawa: “Anchor-Led Swarm Formation and Pose Estimation for 10,000 Pico-Satellites,” The 24th International Conference on Pervasive Computing and Communications (PerCom 2026, Work-in-Progress), Pisa, Italy, 2026.
• Keita Takeda, Wataru Sasaki, Shuhei Kosaka, Tomokazu Matsui, Hirohiko Suwa, Keiichi Yasumoto, Sumio Morioka, Takahiro Inagawa: “Hierarchical Routing for Ultra-High-Speed Communication in Pico-Satellite Formations,” The 24th International Conference on Pervasive Computing and Communications (PerCom 2026, Work-in-Progress), Pisa, Italy, 2026.

Oral Presentation

1. Keita Takeda, Shuhei Kosaka, Wataru Sasaki, Keiichi Yasumoto, Tomokazu Matsui, Hirohiko Suwa, Sumio Morioka, Takahiro Inagawa:
   “Hierarchical Subgroup Routing for High-Speed Data Sharing in Large-Scale Satellite Formation Flying,”
   27th International Conference on Distributed Computing and Networking (ICDCN 2026 Workshops, MUSICAL2026), Nara, Japan, 2026.
2. Nanami Inoue, Koki Shibata, Tamasa Kikuchi, Makoto Yoshida, Tomokazu Matsui, Hirohiko Suwa, Keiichi Yasumoto:
   “Desk work activity recognition using multiple vibration sensors and machine learning,”
   27th International Conference on Distributed Computing and Networking (ICDCN 2026 Workshops, MUSICAL2026), Nara, Japan, 2026.
3. Atsuya Ikeno, Tomokazu Matsui, Hirohiko Suwa, Keiichi Yasumoto:
   “Validation of Virtual Human Motion Sensors in a Digital Twin Environment Using LLM-based Activity Generation,”
   27th International Conference on Distributed Computing and Networking (ICDCN 2026 Workshops, IW-NDSC), Nara, Japan, 2026.
4. Honami Koyama, Hirohiko Suwa, Keiichi Yasumoto:
   “Optimization-Driven Navigation for Behavior Change in Tourism,”
   27th International Conference on Distributed Computing and Networking (ICDCN 2026 Workshops, IW-NDSC), Nara, Japan, 2026.
5. Minhyoung An, Wataru Sasaki, Hirohiko Suwa, Keiichi Yasumoto:
   “Toward Semantically Aligned and Energy-Efficient On-Device Contextual Inference in Real-World Environments,”
   27th International Conference on Distributed Computing and Networking (ICDCN 2026, Doctoral Symposium), Nara, Japan, 2026.

Poster Presentation

1. Shogo Yoshida, Yuki Matsuda, Kota Tsubouchi , Hirohiko Suwa, Keiichi Yasumoto:
   “Wildlife Detection using Motion History Information Captured by Camera Trap in the Dark,”
   27th International Conference on Distributed Computing and Networking (ICDCN 2026, Poster), Nara, Japan, 2026.
2. Shuhei Kosaka, Keiichi Yasumoto, Tomokazu Matsui, Hirohiko Suwa, Wataru Sasaki, Daisuke Wakao, Sumio Morioka, Takahiro Inagawa:
   “Implementation and Validation of Lightweight Pose Estimation for Pico-Satellite Swarms using ToF Cameras,”
   27th International Conference on Distributed Computing and Networking (ICDCN 2026, Poster), Nara, Japan, 2026.

Oral Presentation

• Brynx Junil Alegarbes, Victor Romero II, Tomokazu Matsui, Yuki Matsuda, Hirohiko Suwa, Keiichi Yasumoto:
  “Opportunistic Model Ensembling for Decentralized Learning over Intermittent Edge Networks,”
  IEEE Annual Congress on Artificial Intelligence of Things (IEEE AIoT 2025), Osaka, Japan, 2025.
• Koki Shibata, Tianheng Ling, Chao Qian, Tomokazu Matsui, Hirohiko Suwa, Keiichi Yasumoto, Gregor Schiele:
  “Enabling Vibration-Based Gesture Recognition on Everyday Furniture via Energy-Efficient FPGA Implementation of 1D Convolutional Networks,”
  IEEE Annual Congress on Artificial Intelligence of Things (IEEE AIoT 2025), Osaka, Japan, 2025.
• Minhyoung An, Wataru Sasaki, Hirohiko Suwa, Keiichi Yasumoto:
  “Small Language Model for Real-World HAR: Zero-Shot Performance and Energy Feasibility of On-Device Privacy-Preserving Contextual Inference,”
  IEEE Annual Congress on Artificial Intelligence of Things (IEEE AIoT 2025), Osaka, Japan, 2025.
• Takamasa Kikuchi, Shigetomo Sakuma, Tomokazu Matsui, Hirohiko Suwa, Keiichi Yasumoto:
  “Smart Annotation with Nudging and Gamified Agents for Activity Recognition in a Home Environment,”
  IEEE Annual Congress on Artificial Intelligence of Things (IEEE AIoT 2025), Osaka, Japan, 2025.

Oral Presentation

Issei Matsumoto, Tomokazu Matsui, Yukihisa Fujita, Hirohiko Suwa, Keiichi Yasumoto:
“Data Profile Generation Framework for Data Utilization,”
The Pacific Rim International Conference on Artificial Intelligence (PRICAI 2025 Workshops, PKAW), Wellington, New Zealand, 2025.

Workshops

• Keita Takeda, Shuhei Kosaka, Wataru Sasaki, Keiichi Yasumoto, Tomokazu Matsui, Hirohiko Suwa, Sumio Morioka, Takahiro Inagawa:
  “Hierarchical Subgroup Routing for High-Speed Data Sharing in Large-Scale Satellite Formation Flying,”
  27th International Conference on Distributed Computing and Networking (ICDCN 2026, MUSICAL2026), Nara, Japan, 2026. (to appear)
• Nanami Inoue, Koki Shibata, Tamasa Kikuchi, Makoto Yoshida, Tomokazu Matsui, Hirohiko Suwa, Keiichi Yasumoto:
  “Desk work activity recognition using multiple vibration sensors and machine learning,”
  27th International Conference on Distributed Computing and Networking (ICDCN 2026 Workshops, MUSICAL2026), Nara, Japan, 2026. (to appear)
• Atsuya Ikeno, Tomokazu Matsui, Hirohiko Suwa, Keiichi Yasumoto:
  “Validation of Virtual Human Motion Sensors in a Digital Twin Environment Using LLM-based Activity Generation,”
  27th International Conference on Distributed Computing and Networking (ICDCN 2026 Workshops, IW-NDSC), Nara, Japan, 2026. (to appear)
• Honami Koyama, Hirohiko Suwa, Keiichi Yasumoto:
  “Optimization-Driven Navigation for Behavior Change in Tourism,”
  27th International Conference on Distributed Computing and Networking (ICDCN 2026 Workshops, IW-NDSC), Nara, Japan, 2026. (to appear)

Posters

• Shuhei Kosaka, Keiichi Yasumoto, Tomokazu Matsui, Hirohiko Suwa, Wataru Sasaki, Daisuke Wakao, Sumio Morioka, Takahiro Inagawa:
  “Implementation and Validation of Lightweight Pose Estimation for Pico-Satellite Swarms using ToF Cameras,”
  27th International Conference on Distributed Computing and Networking (ICDCN 2026, Poster), Nara, Japan, 2026. (to appear)
• Shogo Yoshida, Yuki Matsuda, Kota Tsubouchi , Hirohiko Suwa, Keiichi Yasumoto:
  “Wildlife Detection using Motion History Information Captured by Camera Trap in the Dark,”
  27th International Conference on Distributed Computing and Networking (ICDCN 2026, Poster), Nara, Japan, 2026. (to appear)

Doctoral Symposium

• Minhyoung An, Wataru Sasaki, Hirohiko Suwa, Keiichi Yasumoto:
  “Toward Semantically Aligned and Energy-Efficient On-Device Contextual Inference in Real-World Environments,”
  27th International Conference on Distributed Computing and Networking (ICDCN 2026, Doctoral Symposium), Nara, Japan, 2026. (to appear)

• Minhyoung An, Wataru Sasaki, Yuto Shimmyo, Keiichi Yasumoto:
  “Privacy-Preserving Real-Time Human Activity Recognition Using On-Device Small Language Models”
  The 2025 ACM International Joint Conference on Pervasive and Ubiquitous Computing, The 8th International Workshop on Computing for Well-Being (WellComp2025), Espoo, Finland, 2025.