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cs.LG2026
RefineBridge: Generative Bridge Models Improve Financial Forecasting by Foundation Models
Anthony Bolton, Wuyang Zhou, Zehua Chen +2
Financial time series forecasting is particularly challenging for transformer-based time series foundation models (TSFMs) due to non-stationarity, heavy-tailed distributions, and h…
cs.LG2025
Exploiting the Prior of Generative Time Series Imputation
YuYang Miao, Chang Li, Zehua Chen
Time series imputation, i.e., filling the missing values of a time recording, finds various applications in electricity, finance, and weather modelling. Previous methods have intro…
cs.LG2023★ 1 cited
Improving Diffusion Models for ECG Imputation with an Augmented Template Prior
Alexander Jenkins, Zehua Chen, Fu Siong Ng +1
Pulsative signals such as the electrocardiogram (ECG) are extensively collected as part of routine clinical care. However, noisy and poor-quality recordings are a major issue for s…