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Changhua Pei

4 accepted papers

2026

See More, Forecast Better and Faster: Enhancing Time Series Foundation Models via Inference-Time Plug-and-Play Downsampling

ICML 2026poster

Time series foundation models (TSFMs) have demonstrated impressive generalization capabilities across diverse domains. However, they face significant challenges in long-term and ultra long-term forecasting. These challenges primarily arise from scalability limitations when TSFMs process extensive se…

Cited by 0SourceScholar
2026

Taming the Recent-Data Bias: Towards Robust Time Series Forecasting with Global Context

ICML 2026poster

Time series forecasting plays a vital role in numerous domains. However, real-world time series are frequently contaminated by noise, missing values, and anomalies, posing significant challenges to reliable forecasting. In this work, we first systematically investigate a fundamental limitation preva…

Cited by 0SourceScholar
2025

CMoS: Rethinking Time Series Prediction Through the Lens of Chunk-wise Spatial Correlations

ICML 2025poster

Recent advances in lightweight time series forecasting models suggest the inherent simplicity of time series forecasting tasks. In this paper, we present CMoS, a super-lightweight time series forecasting model. Instead of learning the embedding of the shapes, CMoS directly models the spatial correla…

2025

KAN-AD: Time Series Anomaly Detection with Kolmogorov–Arnold Networks

ICML 2025poster

Time series anomaly detection (TSAD) underpins real-time monitoring in cloud services and web systems, allowing rapid identification of anomalies to prevent costly failures. Most TSAD methods driven by forecasting models tend to overfit by emphasizing minor fluctuations. Our analysis reveals that ef…