@CMUHCII @SCSatCMU | Sensing for AI Assistants | Funai / Masason / Quad / Snap Research Fellow | Forbes U30 | MIT TR U35 | 日本語→@rikky0611
Pittsburgh, PA
Joined August 2021
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Truly honored to receive the Gaetano Borriello Outstanding Student Award and Best Doctoral Colloquium Contribution Award at Ubicomp2025.
Grateful to all my collaborators and mentors.
#ubicomp
Honored to be named an Emerging Rockstar by IEEE Pervasive Computing! ⭐️
Also, I'm on the faculty job market this year 📣. Shares would be much appreciated.
Article: ieeexplore.ieee.org/document…
Thank you, @lakmalbuddika, for the feature!
Such hierarchical activity understanding is critical for context-aware interactive systems, like my PrISM research (rikky0611.github.io/projects…) , where how users conceptualize activities doesn't always align with what sensors can distinguish.
Excited to share more work in this direction soon!
For OrganicHAR, please refer to the followings.
arXiv: arxiv.org/abs/2605.18455
GitHub: github.com/synergylabs/Organ…
What sensors can distinguish isn't always how we describe our activities.
Prasoon presented our work OrganicHAR at #UbiComp2026
Instead of forcing sensors to recognize predefined activities, OrganicHAR "discovers" activities that match what sensors can actually distinguish.
Simply by observing patterns in users' everyday activities. No predefined labels needed!
It's fascinating to see how OrganicHAR automatically adjusts the granularity of activity labels while maintaining recognition performance under different sensor settings.
Had a wonderful time visiting @IanArawjo and the Montréal HCI group today.
I really enjoyed the discussions!
Just wake up from the party last night?
Come to our health-sensing-intervention research talk (from 10am, Room132) happening soon!
Come and join us at the Auditorium from 11:15 for AI-Assisted Clinical Diagnosis and Reasoning session! 🤖❤️🩹 #CHI2026
programs.sigchi.org/chi/2026…
Don't miss these talks🥇🥇today at #CHI2026
1: HiFiGaze: Improving Eye Tracking Accuracy Using Screen Content Knowledge by @taejunkim_13 9am Room 124
youtu.be/tLFRt1snIhE?is=94W3…
2: Evidotes: Integrating Scientific Evidence and Anecdotes to Support Uncertainties Triggered by Peer Health Posts by @ShreyaBali3 11:15am Room 111
Thanks for coming to Japan Lunch at CHI2026 #chi2026jp 🇯🇵
Glad to bring the energy from CHI 2025 Yokohama to Barcelona!
Riku Arakawa retweeted
Our paper CalmReminder has been accepted to CHI 2026!
CalmReminder is a smartwatch-based system that detects children’s calm moments and sends just-in-time prompts to parents to notice and reinforce positive behaviors.
Riku Arakawa retweeted
Excited to share that our paper “Evidotes: Integrating Scientific Evidence and Anecdotes to Support Uncertainties Triggered by Peer Health Posts” received an Honorable Mention at CHI 2026! 🏅 #chi2026
Just found out our CHI 2023 work "CatAlyst", which designs an intervention to prevent procrastination, was mentioned in a Forbes article.
Discovered it, of course, while procrastinating on my current project...🫠
forbes.com/sites/lanceeliot/…
Riku Arakawa retweeted
Riku Arakawa, a Ph.D. candidate in @cmuhcii, received the Gaetano Borriello Outstanding Student Award and Best Doctoral Colloquium Contribution Award during UbiComp/ISWC.
hcii.cmu.edu/news/arakawa-bo…
Riku Arakawa retweeted
I am on the Academic and Industry job market this year! My research focuses on HCI, Accessibility, Embedded AI, and Ubiquitous Computing! I understand, design, and build embedded-AI systems for people with different needs in everyday activities. Website: franklin-li.com.
