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cs.LG2026
LEAF: Growing Trees Without Branching for Speech-Aware Large Language Model Post-Training
Argyrios Gerogiannis, Yekaterina Yegorova, Mark Hasegawa-Johnson +1
State-of-the-art GRPO-style methods for speech-aware large language model post-training suffer from coarse credit assignment, broadcasting the same terminal-reward advantage to eve…
cs.LG2026
DARLING: Detection Augmented Reinforcement Learning with Non-Stationary Guarantees
Argyrios Gerogiannis, Yu-Han Huang, Venugopal V. Veeravalli
We study model-free reinforcement learning (RL) in non-stationary finite-horizon episodic Markov decision processes (MDPs) without prior knowledge of the non-stationarity. We focus…