arXiv AI

Convergence Theory of Knowledge Distillation in Asynchronous P2P Gossip Learning Network

arXiv:2609. 01952v1 Announce Type: cross Abstract: Decentralized, serverless learning increasingly connects devices running different architectures, where the standard tool, decentralized SGD, is undefined as models with different parameter counts cannot be averaged.

arXiv AI
Jun 30

Pessimism's Paradox: Conservative Offline Training Amplifies Reward Hacking During Online Adaptation in Reasoning Models

arXiv:2606. 30627v1 Announce Type: cross Abstract: Conservative offline training is widely advocated as a safe foundation for subsequent online adaptation: if a policy stays close to well-supported behaviour, the argument goes, it is less likely to exploit imperfections in a learned reward model.

By Subramanyam Sahoo, Aman Chadha, Vinija Jain, Divya Chaudhary
arXiv Machine Learning
Oct 23

Reverse-KL Policy Distillation: Statistical Guarantees and Limits

The paper investigates the statistical properties of Reverse‑Kullback‑Leibler (KL) policy distillation, focusing on how different feedback settings affect sample complexity. It shows that when the teacher reveals its full action distribution, online distillation achieves minimax rates, whereas revealing only the probability of the student‑generated action requires substantially more data. In contrast, offline distillation attains the same minimax rate regardless of whether the teacher’s full distribution or only the probability of the teacher‑generated action is revealed, because teacher‑generated actions expose the teacher’s preferences directly.

By Haolin Liu, Chen-Yu Wei, Julian Zimmert