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Junwei Su

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#machine learning Preprint Oct 2026

ReFlow: Replay-Driven Decoupling for Efficient RL Post-Training

Reinforcement learning (RL) has been a critical paradigm for improving large language model (LLM) reasoning and agentic capabilities, but its efficiency remains a major bottleneck. Existing RL systems commonly rely on asynchronous execution to overlap rollout generation with policy optimization for enhanced efficiency....

Yu Tian, Junwei Su, Hao Xu et al. · 0 citations
#machine learning Preprint Sep 2026

Reward-Aligned Reweighting for On-Policy Distillation

Reward-Aligned Reweighting for On-Policy Distillation (R$^{2}$-OPD), which uses outcome agreement and the magnitude of teacher--student disagreement to continuously reallocate teacher supervision, achieves the highest average accuracy among the compared training methods in both cross-size and same-size distillation.

Hao Xu, Junwei Su, Lan-Song Diao et al. · 0 citations
#machine learning Preprint Sep 2026

Structuring Relations Among Learning Paradigms via Protocol--Objective--Resource Reductions

This work introduces a protocol-objective-resource (POR) framework that provides a unified language for structuring learning paradigms and transferring complexity guarantees across them and derives a non-exact episode-to-example reduction for episodic meta-learning.

Junwei Su, Chang-Jie Wang, Dong-Yang Chang · 0 citations
Review Aug 2026

Structuring Semantic Embeddings for Principle Evaluation: A Prototype-Guided Contrastive Learning Approach

This paper introduces Prototype-Guided Contrastive Learning (PGCL), a prototype-guided geometric regularization module built on top of frozen text embeddings, and introduces Prototype-Guided Contrastive Learning (PGCL), a prototype-guided geometric regularization module built on top of frozen text embeddings.

Che Shen, Junwei Su, Ling-Peng Kong et al. · 1 citation

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