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Ching Chang

3 accepted papers

2026

Position: Beyond Prediction: Toward Verifiable Physiological Waveform Reasoning with Foundation Models and Agentic LLMs

ICML 2026poster

Physiological waveforms (e.g., ECG, PPG, EEG) encode clinically meaningful information in fine-grained morphology, precise timing, and cross-channel dynamics, yet most machine learning systems still treat them as generic time series and optimize end-to-end prediction. In this position paper, **we ar…

Cited by 0SourceScholar
2025

Time-IMM: A Dataset and Benchmark for Irregular Multimodal Multivariate Time Series

NeurIPS 2025poster

Time series data in real-world applications such as healthcare, climate modeling, and finance are often irregular, multimodal, and messy, with varying sampling rates, asynchronous modalities, and pervasive missingness. However, existing benchmarks typically assume clean, regularly sampled, unimodal…

Cited by 0SourcecodeScholar
2024

Root Cause Analysis in Microservice Using Neural Granger Causal Discovery

AAAI 2024technical

In recent years, microservices have gained widespread adoption in IT operations due to their scalability, maintenance, and flexibility. However, it becomes challenging for site reliability engineers (SREs) to pinpoint the root cause due to the complex relationship in microservices when facing system…