Author

Risheek Garrepalli

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#artificial intelligence Preprint Oct 2026

Surfing the Activation Wave: Analyzing the Information and Geometry of LLM Hidden States for Speculative Decoding

Decoder hidden states from different layers of large language models (LLMs) often encode complementary information. However, existing speculative decoding methods typically rely on a small set of target-model layers chosen using fixed, position-based heuristics. Selecting an optimal subset of layers is inherently a com...

Raghavv Goel, Sudhanshu Agrawal, Mukul Gagrani et al. · 0 citations

#machine learning Preprint Oct 2026

Score-Calibrated Flow for Sampling from Unnormalized Densities with Applications to Generative Online Reinforcement Learning

Diffusion and flow models provide expressive policy classes for online reinforcement learning (RL), enabling multimodal behaviors and improved performance. However, training these policies remains challenging: the critic specifies the desired policy as an unnormalized Boltzmann density but does not provide direct sampl...

Ze-Yang Li, Yu-Nan Wang, Risheek Garrepalli et al. · 0 citations