Ha Le

Northeaster University, Khoury College of Computer Science. le.ha1@northeastern.edu

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A Context-Assisted, Semi-Automated Activity Recall Interface Allowing Uncertainty
Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies (IMWUT’25)
Ha Le, Veronika Potter, Akshat Choube, Rithika Lakshminarayanan, Varun Mishra, and Stephen Intille
[link] [pdf]

GLOSS: Group of LLMs for Open-Ended Sensemaking of Passive Sensing Data for Health and Wellbeing
Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies (IMWUT’25)
Akshat Choube, Ha Le, Jiachen Li, Kaixin Ji, Vedant Das Swain, Varun Mishra
[link][pdf]

A Multi-Agent LLM Network for Suggesting and Correcting Human Activity and Posture Annotations
In Companion of the 2025 on ACM International Joint Conference on Pervasive and Ubiquitous Computing (GENAI4HS Workshop @Ubicomp’25)
Ha Le, Akshat Choube, Vedant Das Swain, Varun Mishra, Stephen Intille
[link] [pdf]

An Evaluation of Temporal and Categorical Uncertainty on Timelines: A Case Study in Human Activity Recall Visualizations
In 2025 IEEE Visualization and Visual Analytics (VIS’25)
Veronika Potter, Ha Le, Uzma Haque Syeda, Stephen Intille and Michelle Borkin
[pdf]

Feasibility and Utility of Multimodal Micro Ecological Momentary Assessment on a Smartwatch
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems (CHI’25)
Ha Le, Veronika Potter, Rithika Lakshminarayanan, Varun Mishra, and Stephen Intille
[link] [pdf]

Collecting Self-reported Physical Activity and Posture Data using Audio-based Ecological Momentary Assessment
Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies (IMWUT’24)
Ha Le, Rithika Lakshminarayanan, Jixin Li, Varun Mishra, and Stephen Intille
[link] [pdf]

Vital Insight: Assisting experts’ context-driven sensemaking of multi-modal personal tracking data using visualization and human-in-the-loop LLM agents
Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies (IMWUT’24)
Jiachen Li, Xiwen Li, Justin Steinberg, Akshat Choube, Bingsheng Yao, Xuhai Xu, Dakuo Wang, Elizabeth Mynatt, Varun Mishra
[link]