Sampling via Stochastic Interpolants by Langevin-based Velocity and Initialization Estimation in Flow ODEs

This paper proposes a novel sampling method for unnormalized Boltzmann densities that leverages a sequence of Langevin samplers to efficiently simulate a probability flow ODE derived from linear stochastic interpolants by generating intermediate samples and robustly estimating the velocity field, while providing theoretical convergence guarantees and demonstrating effectiveness on challenging multimodal distributions and Bayesian inference tasks.

Chenguang Duan, Yuling Jiao, Gabriele Steidl, Christian Wald, Jerry Zhijian Yang, Ruizhe ZhangThu, 12 Ma📊 stat

Central limit theorems for high dimensional lattice polytopes: symmetric edge polytopes

This paper establishes the first central limit theorems for the number of edges and unimodular triangulation edges in symmetric edge polytopes generated by Erdős–Rényi random graphs in high dimensions, utilizing the discrete Malliavin–Stein method to derive precise asymptotics and identify an atypical fluctuation regime where variance cancellation occurs.

Torben Donzelmann, Martina Juhnke, Benedikt Rednoß, Christoph ThäleThu, 12 Ma🔢 math

Equilibrium under Time-Inconsistency: A New Existence Theory by Vanishing Entropy Regularization

This paper establishes a new existence theory for equilibria in continuous-time time-inconsistent stochastic control problems by proving that solutions to entropy-regularized exploratory equilibrium HJB equations converge to a weak solution of the generalized equilibrium HJB equation as the regularization vanishes, thereby resolving the open problem of existence without requiring strong regularity assumptions.

Zhenhua Wang, Xiang Yu, Jingjie Zhang, Zhou ZhouThu, 12 Ma🔢 math

Stochastic Port-Hamiltonian Neural Networks: Universal Approximation with Passivity Guarantees

This paper introduces Stochastic Port-Hamiltonian Neural Networks (SPH-NNs), a framework that parameterizes Hamiltonian systems with neural networks to enforce physical passivity and skew-symmetry constraints, thereby achieving universal approximation of stochastic dynamics with guaranteed energy stability and superior long-term performance compared to standard baselines.

Luca Di Persio, Matthias Ehrhardt, Youness OutalebThu, 12 Ma🤖 cs.LG

Universal Shuffle Asymptotics, Part II: Non-Gaussian Limits for Shuffle Privacy -- Poisson, Skellam, and Compound-Poisson Regimes

This paper establishes the first universality-breaking frontier in shuffle privacy by characterizing the asymptotic behavior of concentrated local randomizers that fail classical Gaussian limits, proving convergence to explicit Poisson, Skellam, and compound-Poisson shift experiments and providing a complete three-regime picture of shuffle privacy limits.

Alex ShvetsThu, 12 Ma📊 stat

On the Tail Transition of First Arrival Position Channels: From Cauchy to Exponential Decay

This paper characterizes the transition of first arrival position channel noise from heavy-tailed Cauchy to exponentially decaying distributions under nonzero drift, identifying a characteristic propagation distance that delineates diffusion-dominated and drift-dominated regimes while demonstrating that Gaussian approximations fail to capture communication potential in low-drift environments.

Yen-Chi LeeMon, 09 Ma🔢 math