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Data quality is crucial for the successful training, generalization and performance of machine learning models. We propose to measure the quality of a subset concerning the dataset it represents, using topological data analysis techniques.…

代数拓扑 · 数学 2024-10-01 Álvaro Torras-Casas , Eduardo Paluzo-Hidalgo , Rocio Gonzalez-Diaz

Topological data analysis offers a rich source of valuable information to study vision problems. Yet, so far we lack a theoretically sound connection to popular kernel-based learning techniques, such as kernel SVMs or kernel PCA. In this…

机器学习 · 统计学 2014-12-24 Jan Reininghaus , Stefan Huber , Ulrich Bauer , Roland Kwitt

Topological data analysis (TDA) is a rapidly developing collection of methods for studying the shape of point cloud and other data types. One popular approach, designed to be robust to noise and outliers, is to first use a smoothing…

统计方法学 · 统计学 2017-12-27 Chul Moon , Noah Giansiracusa , Nicole A. Lazar

Persistent homology probes topological properties from point clouds and functions. By looking at multiple scales simultaneously, one can record the births and deaths of topological features as the scale varies. In this paper we use a…

Topological Data Analysis (TDA) provides a toolkit for the study of the shape of high dimensional and complex data. While operating on a space of persistence diagrams is cumbersome, persistence norms provide a simple real value measure of…

统计方法学 · 统计学 2023-09-26 Pawel Dlotko , Simon Rudkin

Persistent homology allows us to create topological summaries of complex data. In order to analyse these statistically, we need to choose a topological summary and a relevant metric space in which this topological summary exists. While…

代数拓扑 · 数学 2019-06-24 Katharine Turner , Gard Spreemann

Topological data analysis (TDA) is a rising field in the intersection of mathematics, statistics, and computer science/data science. The cornerstone of TDA is persistent homology, which produces a summary of topological information called a…

计算几何 · 计算机科学 2022-05-24 Yu-Min Chung , Michael Hull , Austin Lawson , Neil Pritchard

In this article we propose a novel approach for comparing the persistent homology representations of two spaces (filtrations). Commonly used methods are based on numerical summaries such as persistence diagrams and persistence landscapes,…

机器学习 · 计算机科学 2021-01-05 Yohai Reani , Omer Bobrowski

Paths of persistence diagrams provide a summary of the dynamic topological structure of a one-parameter family of metric spaces. These summaries can be used to study and characterize the dynamic shape of data such as swarming behavior in…

代数拓扑 · 数学 2023-11-17 Chad Giusti , Darrick Lee

This paper is concerned by statistical inference problems from a data set whose elements may be modeled as random probability measures such as multiple histograms or point clouds. We propose to review recent contributions in statistics on…

统计理论 · 数学 2019-08-27 Jérémie Bigot

Phase separation mechanisms can produce a variety of complicated and intricate microstructures, which often can be difficult to characterize in a quantitative way. In recent years, a number of novel topological metrics for microstructures…

数值分析 · 数学 2020-05-29 Paweł Dłotko , Thomas Wanner

The utilization of statistical methods an their applications within the new field of study known as Topological Data Analysis has has tremendous potential for broadening our exploration and understanding of complex, high-dimensional data…

应用统计 · 统计学 2016-07-19 Patrick S. Medina , R. W. Doerge

Persistence diagrams are one of the main tools in the field of Topological Data Analysis (TDA). They contain fruitful information about the shape of data. The use of machine learning algorithms on the space of persistence diagrams proves to…

计算几何 · 计算机科学 2021-08-10 Yu-Min Chung , Austin Lawson

In topological data analysis, persistent homology is used to study the "shape of data". Persistent homology computations are completely characterized by a set of intervals called a bar code. It is often said that the long intervals…

计算几何 · 计算机科学 2025-02-19 Peter Bubenik , Michael Hull , Dhruv Patel , Benjamin Whittle

This paper presents a generalization of the Wasserstein distance for both persistence diagrams and merge trees [20], [66] that takes advantage of the regions of their topological features in the input domain. Specifically, we redefine the…

图形学 · 计算机科学 2025-10-21 Mathieu Pont , Christoph Garth

In topological data analysis (TDA), persistence diagrams have been a succesful tool. To compare them, Wasserstein and Bottleneck distances are commonly used. We address the shortcomings of these metrics and show a way to investigate them in…

计算几何 · 计算机科学 2024-09-27 Paweł Dłotko , Niklas Hellmer

Motivated by persistent homology and topological data analysis, we consider formal sums on a metric space with a distinguished subset. These formal sums, which we call persistence diagrams, have a canonical 1-parameter family of metrics…

代数拓扑 · 数学 2025-02-19 Peter Bubenik , Iryna Hartsock

We study the probabilistic behavior of persistence-based statistics and propose a novel nonparametric framework for detecting structural changes in high-dimensional random point clouds. We establish moment bounds and tightness results for…

统计理论 · 数学 2025-12-30 Toshiyuki Nakayama

We develop a general framework for the probabilistic analysis of random finite point clouds in the context of topological data analysis. We extend the notion of a barcode of a finite point cloud to compact metric spaces. Such a barcode…

概率论 · 数学 2026-03-03 Sara Kalisnik , Christian Lehn , Vlada Limic

Persistent homology is a multiscale method for analyzing the shape of sets and functions from point cloud data arising from an unknown distribution supported on those sets. When the size of the sample is large, direct computation of the…