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Author

Ya Zhang

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#machine learning Preprint Sep 2026

Q-learning Penalized Transformer for Safe Offline Reinforcement Learning

This paper addresses the problem of safe offline reinforcement learning, which involves training a policy to satisfy safety constraints using an offline dataset. This problem is inherently challenging as it requires balancing three highly interconnected and competing objectives: satisfying safety constraints, maximizin...

Sheng-Chao Hu, Peng Wang, Ji-Feng Hu et al. · 0 citations
Preprint Aug 2026

Modular TTT: Rethinking Test-Time Training as Composable Modules

Modular TTT is proposed, a framework that represents the inner learner as a directed acyclic graph and exposes the fast-weight network, loss function, learning rate, weight decay, and normalization as explicit design dimensions and finds that small learning-rate initialization, weight decay, and a single-layer nonlinea...

Bo-Hao Tang, Zhen Qin, Yu-Qi Pan et al. · 1 citation
Preprint Aug 2026

FailForge: Distilling Procedural Competence from Persistent Failures into Code Agents

FailForge is proposed, an agentic framework that converts failed rollouts into training signal, and recovers over 26% of previously failed instances at marginal additional cost, and training Qwen3.5-4B on the augmented corpus improves the SWE-bench Verified resolve rate by 6.6 points over a strong RFT baseline.

Dongyi Lv, E. Fushun, Aichen Cai et al. · 1 citation

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