Author

Meng Wang

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#machine learning Preprint Oct 2026

QiYao-I: A Manifold Based Foundation Model for Irregular Multivariate Time Series Forecasting

Irregular multivariate time series forecasting is a challenging yet important problem in real-world applications, where observations are often irregularly sampled and asynchronously recorded across variables. Existing time series foundation models are mostly built on regularly sampled sequences, making them difficult t...

Lin-Feng Wang, Rui-Tong Zhang, Kai Zhao et al. · 0 citations

#machine learning Preprint Sep 2026

QiYao-M: Multimodal Time Series Foundation Model with Role-Aware Modeling of Endogenous and Exogenous Modalities

The proposed QiYao-M is a role-aware multimodal TSFM that models the two types of modalities separately, including endogenous and exogenous modalities, and introduces Endo-Modality Proxy Training to train this retrieval module without exogenous multimodal pretraining data.

Han-Yin Cheng, Lin-Feng Wang, Zheng-Bo Qu et al. · 0 citations