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Recently, Deng et al. (2026) proposed Generative Modeling via Drifting (GMD), a novel framework for generative tasks. This note presents an analysis of GMD through the lens of Wasserstein Gradient Flows (WGF), i.e., the path of steepest…

We study the problem of estimating a sequence of evolving probability distributions from historical data, where the underlying distribution changes over time in a nonstationary and nonparametric manner. To capture gradual changes, we…

最优化与控制 · 数学 2025-12-16 Edward J. Anderson , Dominic S. T. Keehan

The defining equation $(\ast):\ \dot \omega\_t=-F'(\omega\_t),$ of a gradient flow is kinetic in essence. This article explores some dynamical (rather than kinetic) features of gradient flows (i) by embedding equation $(\ast)$ into the…

概率论 · 数学 2018-06-11 Ivan Gentil , Christian Léonard , Luigia Ripani

In this paper, a gradient flow model is proposed for conducting ground state calculations in Wigner formalism of many-body system in the framework of density functional theory. More specifically, an energy functional for the ground state in…

计算物理 · 物理学 2024-10-02 Guanghui Hu , Ruo Li , Hongfei Zhan

We consider mixed model of traffic flow distribution in large networks (BMW model, 1954 & Stable Dynamic model, 1999). We build dual problem and consider primal-dual mirror descent method for the dual problem. There are two ways to recover…

最优化与控制 · 数学 2018-08-16 Alexander Gasnikov , Evgenia Gasnikova , Yurii Nesterov

Joint distribution matching (JDM) problem, which aims to learn bidirectional mappings to match joint distributions of two domains, occurs in many machine learning and computer vision applications. This problem, however, is very difficult…

计算机视觉与模式识别 · 计算机科学 2020-03-03 JieZhang Cao , Langyuan Mo , Qing Du , Yong Guo , Peilin Zhao , Junzhou Huang , Mingkui Tan

Gaseous flows under an external force are intrinsically defined by their multi-scale nature due to the large variation of densities along the forcing direction. Devising a numerical method capable of accurately and efficiently solving…

计算物理 · 物理学 2025-07-15 Shuangqing Liu , Zuoxu Li , Yonghao Zhang , Tianbai Xiao

We propose a fully discrete variational scheme for nonlinear evolution equations with gradient flow structure on the space of finite Radon measures on an interval with respect to a generalized version of the Wasserstein distance with…

数值分析 · 数学 2016-09-29 Jonathan Zinsl , Daniel Matthes

This article is concerned with the existence and the long time behavior of weak solutions to certain coupled systems of fourth-order degenerate parabolic equations of gradient flow type. The underlying metric is a Wasserstein-like…

偏微分方程分析 · 数学 2016-09-23 Daniel Matthes , Jonathan Zinsl

We study the modeling of a compressible two-phase flow in a porous medium. The governing free boundary problem is known as the Verigin problem with phase transition. We introduce a novel variational framework to construct weak solutions.…

偏微分方程分析 · 数学 2026-01-29 Anna Kubin , Tim Laux , Alice Marveggio

Particle-based variational inference offers a flexible way of approximating complex posterior distributions with a set of particles. In this paper we introduce a new particle-based variational inference method based on the theory of…

机器学习 · 统计学 2019-05-16 Luca Ambrogioni , Umut Guclu , Marcel van Gerven

This thesis analyze the Wasserstein gradient flow of a functional defined as a double convolution of a non-smooth repulsive interaction potential. To be more precise, the potential under investigation has a -|x| behavior close to the…

偏微分方程分析 · 数学 2013-10-15 Giovanni A. Bonaschi

The efficient resolution of Bayesian inverse problems remains challenging due to the high computational cost of traditional sampling methods. In this paper, we propose a novel framework that integrates Conditional Flow Matching (CFM) with a…

机器学习 · 计算机科学 2025-05-20 Daniil Sherki , Ivan Oseledets , Ekaterina Muravleva

We study a natural Wasserstein gradient flow on manifolds of probability distributions with discrete sample spaces. We derive the Riemannian structure for the probability simplex from the dynamical formulation of the Wasserstein distance on…

最优化与控制 · 数学 2021-04-19 Wuchen Li , Guido Montufar

Wasserstein-Fisher-Rao (WFR) gradient flows have been recently proposed as a powerful sampling tool that combines the advantages of pure Wasserstein (W) and pure Fisher-Rao (FR) gradient flows. Existing algorithmic developments implicitly…

机器学习 · 统计学 2026-03-02 Francesca Romana Crucinio , Sahani Pathiraja

In this article we set up a splitting variant of the JKO scheme in order to handle gradient flows with respect to the Kantorovich-Fisher-Rao metric, recently introduced and defined on the space of positive Radon measure with varying masses.…

偏微分方程分析 · 数学 2018-05-08 Thomas Gallouët , Léonard Monsaingeon

Finite difference method and finite element method are popular methods for solving groundwater flow equations. This paper presents a new method that uses gradually varied functions to solve such equation. In this paper, we have established…

数值分析 · 数学 2012-10-17 Li Chen , Xun-Hong Chen

In this paper, we study efficient approximate sampling for probability distributions known up to normalization constants. We specifically focus on a problem class arising in Bayesian inference for large-scale inverse problems in science and…

机器学习 · 计算机科学 2024-10-14 Yifan Chen , Daniel Zhengyu Huang , Jiaoyang Huang , Sebastian Reich , Andrew M. Stuart

We introduce in this paper two time discretization schemes tailored for a range of Wasserstein gradient flows. These schemes are designed to preserve mass, positivity and to be uniquely solvable. In addition, they also ensure energy…

数值分析 · 数学 2024-07-15 Shiheng Zhang , Jie Shen

Predicting molecular ground-state conformation (i.e., energy-minimized conformation) is crucial for many chemical applications such as molecular docking and property prediction. Classic energy-based simulation is time-consuming when solving…

生物大分子 · 定量生物学 2025-05-23 Fanmeng Wang , Minjie Cheng , Hongteng Xu