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Sizhuang He

4 accepted papers

2026

Learning Permutation Distributions via Reflected Diffusion on Ranks

ICML 2026poster

The finite symmetric group $S_n$ provides a natural domain for permutations, yet learning probability distributions on $S_n$ is challenging due to its factorially growing size and discrete, non-Euclidean structure. Recent permutation diffusion methods define forward noising via shuffle-based random …

Cited by 0SourceScholar
2026

STRIDE: Post-Training LLMs to Reason and Refine Bio-Sequences via Edit Trajectories

ICML 2026poster

Discrete biological sequence optimization demands iterative refinement while satisfying strict syntactic constraints. Diffusion-based approaches provide strong progressive refinement but are not naturally aligned with discrete, grammar-constrained edit operations, whereas autoregressive LLMs readily…

Cited by 0SourceScholar
2025

Intelligence at the Edge of Chaos

ICLR 2025poster

We explore the emergence of intelligent behavior in artificial systems by investigating how the complexity of rule-based systems influences the capabilities of models trained to predict these rules. Our study focuses on elementary cellular automata (ECA), simple yet powerful one-dimensional systems…

Cited by 2SourcePDFScholar
2025

Non-Markovian Discrete Diffusion with Causal Language Models

NeurIPS 2025poster

Discrete diffusion models offer a flexible, controllable approach to structured sequence generation, yet they still lag behind causal language models in expressive power. A key limitation lies in their reliance on the Markovian assumption, which restricts each step to condition only on the current s…

Cited by 0SourceScholar