Author

Zhi Chen

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#artificial intelligence Preprint Oct 2026

Timer-M1: A Multivariate Time Series Foundation Model via Learning Primitives

We introduce Timer-M1, a pretrained multivariate time series foundation model that learns with primitives for zero-shot forecasting. Across domains, time series share elementary temporal and relational patterns, termed primitives, yet differ in how these primitives manifest and evolve across different contexts. Despite...

Hao-Ran Zhang, Hai-Xuan Liu, Xin Su et al. · 0 citations

Preprint Aug 2026

$\tau_0$-VLA: a Hierarchical Robot Foundation Model with World-Model-Guided Test-Time Computation

Across in-domain and distribution-shifted settings, allocating additional test-time computation substantially improves next-subtask prediction accuracy, and these gains translate into higher closed-loop success on long-horizon robot manipulation tasks.

Xiaowei Cai, Yunuo Cai, Bing Chen et al. · 4 citations · ⚡1