QiYao-I: A Manifold Based Foundation Model for Irregular Multivariate Time Series Forecasting
This work introduces a novel sampling-conditioned temporal manifold attention mechanism that maps real timestamps into a learnable temporal manifold feature space and injects temporal manifold biases into attention layers, enabling the model to capture both irregular time intervals and local sampling structures.
Lin-Feng Wang, Rui-Tong Zhang, Kai Zhao et al.
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