I contribute to the research community through peer review, organizing scholarly venues, and academic service across computer science and digital health.
Academic Service
Editorial Service
Associate Editor, ACM IMWUT (Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies)
Associate Editor, ACM Transactions on Computing for Healthcare (HEALTH)
Organization
Co-organizer, UbiComp & Health Symposium, NYU Tandon (June 2026)
Associate Chair, CHI 2026, Subcommittee: Understanding People — Statistical & Quantitative Methods
Program Committee, HARMONY 2026: Human-centered AI Research for Mental Health, co-located with IEEE/ACM CHASE 2026
Technical Program Committee, EvalComp 2025: International Workshop on Evaluation and Trustworthiness in Ubiquitous Computing
Technical Program Committee, FairComp 2024: Workshop on Fairness and Robustness in Machine Learning for Ubiquitous Computing
Peer Review
ACM CHI Conference on Human Factors in Computing Systems
ACM IMWUT/UbiComp (Interactive, Mobile, Wearable and Ubiquitous Technologies)
ACM CSCW (Computer Supported Cooperative Work)
ACM UIST (Symposium on User Interface Software and Technology)
Grants & Funding
NIH/NIMH R33 (Co-Investigator), 2026–2028
Context-aware mobile interventions for social recovery in serious mental illness.
PIs: Eric Granholm and Colin Depp (UCSD)
TYDE Grand Challenge Seed Grant (Co-Investigator), 2026
University of Virginia. PI: Henry Kautz (UVA CS). Co-Is: Bethany Teachman, Stefanie Sequeira (UVA Psychology).
Announcement
TYDE Grand Challenge Seed Grant (Co-Investigator), 2025
University of Virginia. Examining environmental mastery and wellbeing among college students. Co-I: Laura Barnes.
Announcement
Awards & Fellowships
Editor’s Choice, Psychological Assessment (American Psychological Association), 2026
Psychometric properties and validity of a Mobile Patient Health Questionnaire–9 (MPHQ-9) for ecological momentary assessment in depressed adults.
Haddox D, Mackin DM, Griffin TZ, Heinz MV, Nemesure MD, Collins AC, Price GD, Lekkas D, Pillai A, Nepal S, Campbell AT, Jacobson NC.
Distinguished Paper Award, ACM UbiComp 2025, Espoo, Finland — Top 3%
Capturing the College Experience: A Four-Year Mobile Sensing Study of Mental Health, Resilience and Behavior of College Students during the Pandemic.
Nepal S, Liu W, Pillai A, Wang W, Vojdanovski V, Huckins JF, Rogers C, Meyer ML, Campbell AT.
Distinguished Paper Award, ACM UbiComp 2023, Cancún, Mexico — Top 3%
GLOBEM: Cross-Dataset Generalization of Longitudinal Human Behavior Modeling.
Xu X, Liu X, Zhang H, Wang W, Nepal S, Sefidgar YS, Seo W, Kuehn KS, Huckins JF, Morris ME, Nurius PS, Riskin EA, Patel S, Althoff T, Campbell A, Dey AK, Mankoff J.
Stanford HAI Postdoctoral Fellowship, 2024–2025
Stanford Institute for Human-Centered Artificial Intelligence
Neukom Outstanding Graduate Research Award, 2023
Neukom Institute, Dartmouth College
Best Paper Honorable Mention, WristSense Workshop, IEEE PerCom 2020, Austin, TX
Improved Sleep Detection Through the Fusion of Phone Agent and Wearable Data Streams.
De Choudhury M, Mirjafari S, Nepal S, Robles-Granda P, Saha K, Striegel AD.
Invited Talks
Leveraging Digital Behavioral Signals for AI-powered Mental Health Assessment, Prediction, and Intervention (2025)
A talk series given at:
University of Illinois Urbana-Champaign, Siebel School of Computing and Data Science (April 2025)
Yale University, Center for Brain and Mind Health (April 2025)
Stanford University, HCI Group (March 2025)
University of Maryland, Department of Information Systems (March 2025)
Virginia Tech, Department of Computer Science (March 2025)
Penn State University, College of Information Sciences and Technology (March 2025)
University of Virginia, Department of Computer Science (February 2025)
Opportunities and Challenges in Using Digital Sensors for Mental Health and Wellbeing Research
TYDE Lunch & Learn Series, University of Virginia (2025)
The Science of Digital Wellbeing: Challenges and Opportunities in Mobile Mental Health
Flourish Science, Inc., Palo Alto, CA (2024)
From User Surveys to Telemetry-Driven Agents: Exploring the Potential of Personalized Productivity Solutions
Microsoft Research (2023)
Burnout in Cybersecurity Incident Responders: Exploring the Factors that Light the Fire
Microsoft Research (2022)