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20242026
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cs.HC2026

Do LLMs Need to See Everything? A Benchmark and Study of Failures in LLM-driven Smartphone Automation using Screentext vs. Screenshots

Shiquan Zhang, Tianyi Zhang, Le Fang +3

With the rapid advancement of large language models (LLMs), mobile agents have emerged as promising tools for phone automation, simulating human interactions on screens to accompli…

cs.HC2025

Behavioral Indicators of Loneliness: Predicting University Students' Loneliness Scores from Smartphone Sensing Data

Qianjie Wu, Tianyi Zhang, Hong Jia +1

Loneliness is a critical mental health issue among university students, yet traditional monitoring methods rely primarily on retrospective self-reports and often lack real-time beh…

cs.HC2024

AWARE Narrator and the Utilization of Large Language Models to Extract Behavioral Insights from Smartphone Sensing Data

Tianyi Zhang, Miu Kojima, Simon D'Alfonso

Smartphones, equipped with an array of sensors, have become valuable tools for personal sensing. Particularly in digital health, smartphones facilitate the tracking of health-relat…

cs.HC2024

AutoJournaling: A Context-Aware Journaling System Leveraging MLLMs on Smartphone Screenshots

Tianyi Zhang, Shiquan Zhang, Le Fang +3

Journaling offers significant benefits, including fostering self-reflection, enhancing writing skills, and aiding in mood monitoring. However, many people abandon the practice beca…

cs.HC2024

Predicting Affective States from Screen Text Sentiment

Songyan Teng, Tianyi Zhang, Simon D'Alfonso +1

The proliferation of mobile sensing technologies has enabled the study of various physiological and behavioural phenomena through unobtrusive data collection from smartphone sensor…

cs.HC2024

Enabling On-Device LLMs Personalization with Smartphone Sensing

Shiquan Zhang, Ying Ma, Le Fang +3

This demo presents a novel end-to-end framework that combines on-device large language models (LLMs) with smartphone sensing technologies to achieve context-aware and personalized…