(April 2026) Ha receives the Apple AI/ML Fellowship
We are thrilled to announce that Ha has been named as a 2026 Apple AI/ML Scholar in Human-Centered AI!
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UbiWell Lab
The Ubiquitous Computing for Health and Well-being (UbiWell) Lab is an interdisciplinary research group at the Khoury College of Computer Sciences and the Bouvé College of Health Sciences at Northeastern University.
We work on developing data-driven solutions to enable effective sensing and interventions for mental- and behavioral-health outcomes with mobile and ubiquitous technologies.
Research Areas
Our interdisciplinary team works at the intersection of mobile/wearable sensing, data science, human-centered computing, and behavioral science.
We work on exploring and advancing the complete "lifecycle" of mental- and behavioral-health sensing and intervention, which includes (a) accurately sensing and detecting a mental or behavioral health condition, like stress and opioid use; (b) after detecting a particular condition, determining the right time to deliver the intervention or support, such that the user is most likely to be receptive to the interventions provided; and (c) choosing the best intervention delivery mechanism and modality to ensure just-in-time delivery and reachability.
A simplified representation of the sensing to intervention lifecycle.
Current Projects
Causal modeling for physiological stress
We are working on various projects to leverage multimodal data and understand the contextual and behavioral factors that lead to physiological stress, and evaluate its association with the perception of stress.
Predicting relapse during OUD treatment
We are working on a longitudinal study to detect at-risk indicators, e.g., stress, craving, and mood, among patients undergoing Opioid Use Disorder (OUD) treatment, using passively collected contextual and sensor data from smartphones and wearables.
States-of-receptivity for digital health interventions
We have multiple projects currently underway to better evaluate the contexts where people are willing and able to engage with and use digital health interventions. These range from behavior-change interventions in free-living situations to interventions during specific scenarios, e.g., driving.
News
(April 2026) Jiachen's paper receives CHI 2026 Best Paper Honorable Mention
We are excited to announce that Jiachen received the Best Paper Honorable Mention for her 2026 CHI Paper that she presented in Barcelona!
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(April 2026) Ha receives Northeastern's Outstanding PhD Student Award in Humanics
Congratulations to Ha for receiving Northeastern University’s Outstanding PhD Student Award in Humanics for 2026. This award recognizes graduate students who, through their education, have integrated human literacy with data and technology in their learning or research.
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(February 2026) Akshat receives ThinkSwiss Scholarship!
We are excited to announce that Akshat has received the ThinkSwiss Research Scholarship!
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(February 2026) OpenAI's AI and Mental Health Grant
We are thrilled to receive funding from OpenAI as part of their AI and Mental Health Grant Program for our project, “From Signals to Sensemaking: Safe AI Reasoning in Adolescent Digital Phenotyping.”
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(January 2026) Three papers accepted at CHI 2026
Our team has three full papers accepted at CHI 2026, to be presented in Barcelona!
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(November 2025) Two papers accepted at IMWUT 2025
We have two new papers accepted at IMWUT, to be presented at UbiComp 2026 in Shanghai!
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Recent Publications
Show allRuishi Zou, Shiyu Xu, Margaret E Morris, Jihan Ryu, Timothy D. Becker, Nicholas Allen, Anne Marie Albano, Randy Auerbach, Dan Adler, Varun Mishra, Lace M. Padilla, Dakuo Wang, Ryan Sultan, Xuhai Xu
Proceedings of the 2026 CHI Conference on Human Factors in Computing Systems 2026
Bingsheng Yao, Menglin Zhao, Zhan Zhang, Pengqi Wang, Emma G Chester, Changchang Yin, Tianshi Li, Varun Mishra, Lace M. Padilla, Odysseas P Chatzipanagiotou, Timothy Pawlik, Ping Zhang, Weidan Cao, Dakuo Wang
Proceedings of the 2026 CHI Conference on Human Factors in Computing Systems 2026
Jiachen Li, Amanda K Hall, Ruican Zhong, Selin S. Everett, Alyssa Unell, Hanwen Xu, Matthias Blondeel, Jonathan Carlson, Katie Claveau, Thulasee Jose, Tristan Naumann, David C. Rhew, Naiteek Sangani, Frank Tuan, James Weinstein, Varun Mishra, Elizabeth D Mynatt, Scott Saponas, Hao Qiu, Leonardo Schettini, Joseph Samuel Preston, Aiden Gu, Naoto Usuyama, Zelalem Gero, Cliff Wong, Noel Christopher Codella, Hoifung Poon, Shrey Jain, Matthew Lungren, Eric Horvitz
Proceedings of the 2026 CHI Conference on Human Factors in Computing Systems 2026
Jiachen Li, Justin Steinberg, Elizabeth Mynatt, Varun Mishra
JMIR Human Factors 2026
Natasha Yamane, Varun Mishra, Matthew S. Goodwin
arXiv 2025