Researcher profile
Matthias Grundmann
2 papers in the PaperMetrix corpus
Publications
Papers by this author
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PRDP: Proximal Reward Difference Prediction for Large-Scale Reward Finetuning of Diffusion Models
2024 · arXiv (Cornell University)
Reward finetuning has emerged as a promising approach to aligning foundation models with downstream objectives. Remarkable success has been achieved in the language domain by using reinforcement learning (RL) to maximize rewards that reflect human …
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Model Checking the Security of the Lightning Network
2025 · arXiv (Cornell University)
Payment channel networks are an approach to improve the scalability of blockchain-based cryptocurrencies. The Lightning Network is a payment channel network built for Bitcoin that is already used in practice. Because the Lightning Network is …