arXiv Machine Learning By Linfeng Wang, Ruitong Zhang, Kai Zhao, Yang Shu, Zhongwen Rao, Meng Wang, Yijie Li, Bin Yang, Chenjun Guo

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

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QiYao-I is a manifold‑based foundation model designed for irregular multivariate time series forecasting. It introduces a sampling‑conditioned temporal manifold attention mechanism that maps real timestamps into a learnable manifold feature space, and a dynamic variable interaction mechanism that selectively passes messages across variables while respecting asynchronous observations. Experiments on real‑world benchmarks show that QiYao‑I outperforms existing foundation and end‑to‑end irregular forecasting models, especially in zero‑shot and few‑shot scenarios.

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