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First Provable Guarantees for Practical Private FL: Beyond Restrictive Assumptions

arXiv:2512.21521v1 Announce Type: new Abstract: Federated Learning (FL) enables collaborative training on decentralized data. Differential privacy (DP) is crucial for FL, but current private methods often rely on unrealistic assumptions (e.g., bounded gradients or heterogeneity), hindering practical application. Existing works…

PhysicsCorrect: A Training-Free Approach for Stable Neural PDE Simulations

arXiv:2507.02227v2 Announce Type: replace Abstract: Neural networks have emerged as powerful surrogates for solving partial differential equations (PDEs), offering significant computational speedups over traditional methods. However, these models suffer from a critical limitation: error accumulation during long-term rollouts, where small…

Generative Actor Critic

arXiv:2512.21527v1 Announce Type: new Abstract: Conventional Reinforcement Learning (RL) algorithms, typically focused on estimating or maximizing expected returns, face challenges when refining offline pretrained models with online experiences. This paper introduces Generative Actor Critic (GAC), a novel framework that decouples…

Deterministic Discrete Denoising

arXiv:2509.20896v2 Announce Type: replace Abstract: We propose a deterministic denoising algorithm for discrete-state diffusion models based on Markov chains. The generative reverse process is derandomized by introducing a variant of the herding algorithm with weakly chaotic dynamics, which induces deterministic…