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Pengkun Wang

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#artificial intelligence Preprint Oct 2026

TStruct: Learning Shared Temporal Structures for Long-Term Time Series Forecasting

Long-term time series forecasting requires learning temporal dependencies that remain stable and generalizable under temporal distribution shifts. However, real-world time series are often noisy, non-stationary, and heterogeneous, making deep learning models prone to overfitting incidental temporal interactions in the...

Yang-Ze Li, Zhen-Qiang Zhou, Qi-He Huang et al. · 0 citations
Conference Open access Sep 2026

StreamMTS: Towards Streaming Multivariate Time Series Forecasting

Current mainstream research in multivariate time series (MTS) forecasting often assumes that all data are static. However, real-world MTS data typically arrives continuously in a streaming manner, which we refer to as streaming MTS. The statistical characteristics and spatiotemporal graph topology of these data evolve...

Binwu Wang, Jia-Ming Ma, Yudong Zhang et al. · 0 citations
Preprint Aug 2026

DiDPO: Diff-in-Diff Policy Optimization for Coding Agent Training

DiDPO is proposed, a critic-free RL method that constructs fine-grained credit units directly from the structure of code diffs directly from the structure of code diffs, offering a principled framework for fine-grained credit assignment in coding agent training.

Xu-Cong Wang, Zhe Zhao, Li-Heng Yu et al. · 1 citation

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