activity
20202026
most citedSpectral Temporal Graph Neural Network for Multivariate Time-series Forecasting

116 citations · 266 across the 24 of their papers we have counts for

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Showing 2026Show all

7 papers · 1 filter

cs.LG2026

Measuring Effective Data Resolution in Guided Diffusion Posteriors

Ridham Patel, Defu Cao, Jiacheng Pang +1

Guided diffusion samplers are increasingly used to reconstruct physical fields from sparse observations, but standard diagnostics do not say how much of the reconstruction was actu…

cs.AI2026

PPG-LM: A Photoplethysmography-Language Model with Multi-Level Clinical Alignment

Xiaoda Wang, Minxiao Wang, Maxwell A Xu +10

Photoplethysmography (PPG) is widely recorded by clinical monitors and consumer wearables, providing a scalable source of continuous physiological information. These recordings off…

cs.LG2026

Trustworthy Protein-Ligand Binding Affinity Prediction via Reliability-Aware Multi-Engine Fusion

Yongchan Hong, Defu Cao, Wenjin Liu +6

Accurate protein-ligand binding affinity prediction is central to computational drug discovery, yet modern docking engines frequently disagree without indicating which prediction t…

cs.CL2026

Speaking Numbers to LLMs: Multi-Wavelet Number Embeddings for Time Series Forecasting

Defu Cao, Zijie Lei, Muyan Weng +2

Large language models (LLMs) are attractive for context-aware time series forecasting because they can integrate heterogeneous textual signals, yet their discrete, language-oriente…

eess.SP2026

PG-LRF: Physiology-Guided Latent Rectified Flow for Electro-Hemodynamic PPG-to-ECG Generation

Xiaoda Wang, Minxiao Wang, Kaiqiao Han +10

Electrocardiography (ECG) is the clinical standard for cardiac assessment but requires dedicated hardware that does not scale to daily-life monitoring. Photoplethysmography (PPG) i…

cs.AI2026

Adaptive Collaboration with Humans: Metacognitive Policy Optimization for Multi-Agent LLMs with Continual Learning

Wei Yang, Defu Cao, Jiacheng Pang +2

While scaling individual Large Language Models (LLMs) has delivered remarkable progress, the next frontier lies in scaling collaboration through multi-agent systems (MAS). However,…

cs.AI2026

TemporalBench: A Benchmark for Evaluating LLM-Based Agents on Contextual and Event-Informed Time Series Tasks

Muyan Weng, Defu Cao, Wei Yang +2

It is unclear whether strong forecasting performance reflects genuine temporal understanding or the ability to reason under contextual and event-driven conditions. We introduce Tem…