Vassilis Kostakos

University of Melbourne — Australia

Computer Science · Physical Sciences

52h-index10.4kcitations401works2.52yr avg
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Research Topics

Mobile Crowdsensing and Crowdsourcing(69), Human Mobility and Location-Based Analysis(68), Innovative Human-Technology Interaction(61), Context-Aware Activity Recognition Systems(48), Personal Information Management and User Behavior(45)

Publications401 total

NarrativeSense: Predicting Affective States in University Students through Smartphone Sensing and Contextual Narratives
ACM Transactions on Computing for Healthcare·2026
Menta: A Small Language Model for On-Device Mental Health Prediction
arXiv (Cornell University)·2025Open Access
A pilot randomised controlled trial of the Peer Tree digital intervention targeting loneliness in young people: a study protocol
UNC Libraries·2025Open Access
Safeguarding Crowdsourcing Surveys from ChatGPT through Prompt Injection
Proceedings of the ACM on Human-Computer Interaction·2025
Toward Ubiquitous Operating Systems: Lessons from the Field
Communications of the ACM·2025Open Access
Using Vibration for Secure Pairing With Implantable Medical Devices: Development and Usability Study
JMIR Biomedical Engineering·2025Open Access
StudentSense: Primary outcomes of a smartphone digital phenotyping study of university students in Australia
Computers in Human Behavior Reports·2025Open Access
Beyond Scale: Small Language Models are Comparable to GPT-4 in Mental Health Understanding
arXiv (Cornell University)·2025Open Access
SmartSense-D: A safety, feasibility, and acceptability pilot study of digital phenotyping in young people with major depressive disorder
Digital Health·2025Open Access
Real-Time Detection of Robot Failures Using Gaze Dynamics in Collaborative Tasks
2025
Gazing at Failure: Investigating Human Gaze in Response to Robot Failure in Collaborative Tasks
2025· 1 cited
Real-Time Detection of Robot Failures Using Gaze Dynamics in Collaborative Tasks
arXiv (Cornell University)·2025Open Access
Gazing at Failure: Investigating Human Gaze in Response to Robot Failure in Collaborative Tasks
arXiv (Cornell University)·2025Open Access
The Dynamic Association Between Physical Activity and Psychological Symptoms in Young People With Major Depressive Disorder: An Active and Passive Sensing Longitudinal Cohort Study
Early Intervention in Psychiatry·2025Open Access
Digital Home-Based Self-Monitoring System for People with Heart Failure: Protocol for Development of SmartHeart and Evaluation of Feasibility and Acceptability
JMIR Research Protocols·2025· 7 citedOpen Access
Nomophobia, Psychopathology, and Smartphone-Inferred Behaviors in Youth With Depression: Longitudinal Study
JMIR Formative Research·2025· 2 citedOpen Access
From Prediction to Explanation: Using Screen Text to Understand Smartphone Use and User Behaviour
SSRN Electronic Journal·2025Open Access
Auditing TikTok’s Recommendations: Understanding the Prevalence of Misinformation on the Platform
SSRN Electronic Journal·2025Open Access
Understanding User Behavior in the Wild Using Smartphones
2024· 1 cited
AutoJournaling: A Context-Aware Journaling System Leveraging MLLMs on Smartphone Screenshots
2024· 3 citedOpen Access
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Frequent Co-authors

Jorge Gonçalves(24), Denzil Ferreira(15), Simo Hosio(15), Niels van Berkel(9), Timo Ojala(6), Jakob Rogstadius(5), Liu Yong(5), Hannu Kukka(5), Anind K. Dey(4), Zhanna Sarsenbayeva(4), Jim Laredo(3), Hongxiu Li(3), Samodha Pallewatta(3), Rajkumar Buyya(3), Aniket Kittur(2), Boris Smus(2), Maja Vuković(2), Eamonn O’Neill(2), Alan Penn(2), Evangelos Karapanos(2)