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Author

Zi-Yi Chen

3 papers indexed here

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Towards Optimal Multi-draft Speculative Decoding

The results show that the draft sampling method strongly influences the optimal acceptance rate, with sampling without replacement outperforming sampling with replacement, and the theoretical upper bound of MDSD efficiency is measured for the first time.

Zheng-Mian Hu, Tong Zheng, V. Viswanathan et al. · 26 citations · ⚡4
#machine learning Preprint May 2026

From Dual Tracking to Clipping: Provably Faster Distributionally Robust Multi-Objective Optimization

This work introduces distributionally robust multi-objective optimization (DR-MOO), which minimizes multiple objectives under their respective worst-case distributions, and proposes Pareto-type solution concepts for DR-MOO and develops multi-gradient descent algorithms (MGDA) with provable guarantees.

Yu-Feng Yang, Fangning Zhuo, Zi-Yi Chen et al. · 0 citations
#machine learning Preprint Sep 2026

Towards Identifiable Representations under Misspecified Structure

This work characterize structural misspecification as a perturbed factor analysis problem, and establishes subspace identifiability under spectral separation and controlled perturbation, followed by component-wise identifiability under structural sparsity.

Yu-Ke Li, Yujia Zheng, Zi-Yi Chen et al. · 0 citations

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