activity
20212026
most citedSelf-supervised Regularization for Text Classification

1 citations · 3 across the 13 of their papers we have counts for

collaborators

13 papers

cs.AI2026

TRACE-TS: Attribution-Grounded and Traceable Sensor-Language Reasoning for Human Activity Understanding

Sparsh Rastogi, Tanmay Kumar, Baiyu Chen +3

Wearable sensors capture fine-grained motion patterns that support rich behavioral understanding, yet most existing methods reduce these signals to activity labels. Recent LM-based…

cs.CL2026

RubricsTree: Scalable and Evolving Open-Ended Evaluation of Personal Health Agents across Health Memory and Medical Skills

Weizhi Zhang, Zechen Li, Hamid Palangi +16

The LLM-empowered personal health agents with user health (sensor) metrics have offered a promising pathway to alleviate global disparities in healthcare access. However, large-sca…

cs.CV2026

AnyMo: Geometry-Aware Setup-Agnostic Modeling of Human Motion in the Wild

Baiyu Chen, Zechen Li, Wilson Wongso +5

As wearable and mobile devices become increasingly embedded in daily life, they offer a practical way to continuously sense human motion in the wild. But inertial signals are highl…

cs.AI2026

MAGE: Multi-Agent Self-Evolution with Co-Evolutionary Knowledge Graphs

Ruiyi Yang, Zechen Li, Hao Xue +2

Self-evolving language-model agents must decide what to learn next and how to preserve what they have learned across iterations. Existing systems typically carry this cross-iterati…

cs.LG2026

GlucoFM: A Dual-Stream Foundation Model for Continuous Glucose Monitoring

Zechen Li, Keerthana Natarajan, Weizhi Zhang +11

Continuous glucose monitoring (CGM) provides a dense view of daily metabolic physiology, yet existing generic time-series and CGM-specific foundation models often encode glucose tr…

cs.LG2026

CGM-JEPA: Learning Consistent Continuous Glucose Monitor Representations via Predictive Self-Supervised Pretraining

Hada Melino Muhammad, Zechen Li, Flora Salim +1

Continuous Glucose Monitoring (CGM) can detect early metabolic subphenotypes (insulin resistance, IR; -cell dysfunction), but population-scale deployment faces two coupled probl…

cs.AI2026

Agentic-MME: What Agentic Capability Really Brings to Multimodal Intelligence?

Qianshan Wei, Yishan Yang, Siyi Wang +12

Multimodal Large Language Models (MLLMs) are evolving from passive observers into active agents, solving problems through Visual Expansion (invoking visual tools) and Knowledge Exp…

cs.CL2025★ 1 cited

ZARA: Training-Free Motion Time-Series Reasoning via Evidence-Grounded LLM Agents

Zechen Li, Baiyu Chen, Hao Xue +1

Motion sensor time-series are central to Human Activity Recognition (HAR), yet conventional approaches are constrained to fixed activity sets and typically require costly parameter…

cs.CV2025★ 1 cited

COMODO: Cross-Modal Video-to-IMU Distillation for Efficient Egocentric Human Activity Recognition

Baiyu Chen, Wilson Wongso, Zechen Li +3

The goal of creating intelligent, human-centered wearable systems for continuous activity understanding faces a fundamental trade-off: Egocentric video-based models capture rich se…

cs.CL2024

SensorLLM: Aligning Large Language Models with Motion Sensors for Human Activity Recognition

Zechen Li, Shohreh Deldari, Linyao Chen +2

We introduce SensorLLM, a two-stage framework that enables Large Language Models (LLMs) to perform human activity recognition (HAR) from sensor time-series data. Despite their stro…

cs.LG2024

Enhancing Spatio-temporal Quantile Forecasting with Curriculum Learning: Lessons Learned

Du Yin, Jinliang Deng, Shuang Ao +6

Training models on spatio-temporal (ST) data poses an open problem due to the complicated and diverse nature of the data itself, and it is challenging to ensure the model's perform…

cs.CV2022

QLEVR: A Diagnostic Dataset for Quantificational Language and Elementary Visual Reasoning

Zechen Li, Anders Søgaard

Synthetic datasets have successfully been used to probe visual question-answering datasets for their reasoning abilities. CLEVR (johnson2017clevr), for example, tests a range of vi…

cs.CL2021★ 1 cited

Self-supervised Regularization for Text Classification

Meng Zhou, Zechen Li, Pengtao Xie

Text classification is a widely studied problem and has broad applications. In many real-world problems, the number of texts for training classification models is limited, which re…