跳到正文
← 返回论文列表与筛选
阅读说明

本页整理公开书目信息,不生成学术质量评分。AI 解读根据题名及所注明的摘要或原文片段生成,未完成全文核验,可能有误;具体假设、证明与结论请核对原文。摘要保留来源文本,未经模型改写。

DOI 首次登记不等于接收或发表日期。部分更正、评论等条目没有独立摘要;缺少可靠材料时保留待补状态。

引用量采用 OpenAlex 单条关联记录,不合计多个记录;关联记录可能包含正式发表版本,不等于此版本单独引用。缺失不视为零,引用指标不代表论文质量。

关注作者按书目中的完整姓名匹配,同名和姓名变体需人工辨别。相关论文先按共享细分方向和具体方法排列,再参考通用方法与发表日期。

分类依据与纠错

AI 根据所提供的论文材料归类:摘要聚焦最优运输势函数的通用统计理论,未具体研究所给细分中的结构估计或分布效应。

反馈分类问题

正在核对关联版本…

代码、数据与补充材料

正在核对对应版本的资源…

关注这篇论文的作者

Brenier 映射势函数的收敛速度

研究问题
最优运输中的 Brenier 映射具有经济应用价值,但其势函数的简单插件估计量能以何种速度逼近总体对象?
方法与思路
作者通过半对偶最优运输问题和光滑经验过程结果分析插件估计量,并研究 Poincaré 不等式及势函数规范化的作用。
材料陈述的贡献
摘要称在所述条件下获得与核密度估计极小极大速度对应的标准差收敛结果,并在规范化后扩展到 L² 收敛。
阅读关注点
应核对标准差意义的误差与 L² 误差的区别、Poincaré 条件、规范化方式,以及半对偶问题二阶变分的关键论证。
阅读边界
仅据所给 Crossref 摘要,不能把势函数的收敛速度直接视为映射梯度的速度,也无法判断完整正则条件或版本变化。

原文摘要

The theory of optimal transportation has experienced a sharp increase in interest in many areas of economic research such as optimal matching theory and econometric identification. A particularly valuable tool, due to its convenient representation as the gradient of a convex function, has been the Brenier map: the matching obtained as the optimizer of the Monge–Kantorovich optimal transportation problem with the euclidean distance as the cost function. Despite its popularity, the statistical properties of the Brenier map have yet to be fully established, which impedes its practical use for estimation and inference. This article takes a first step in this direction by deriving a convergence rate for the simple plug-in estimator of the potential of the Brenier map via the semi-dual Monge–Kantorovich problem. Relying on classical results for the convergence of smoothed empirical processes, it is shown that this plug-in estimator converges in standard deviation to its population counterpart under the minimax rate of convergence of kernel density estimators if one of the probability measures satisfies the Poincaré inequality. Under a normalization of the potential, the result extends to convergence in the $L^2$ norm, while the Poincaré inequality is automatically satisfied. The main mathematical contribution of this article is an analysis of the second variation of the semi-dual Monge–Kantorovich problem, which is of independent interest.

笔记与分组