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The \v{C}ech and Rips constructions of persistent homology are stable with respect to perturbations of the input data. However, neither is robust to outliers, and both can be insensitive to topological structure of high-density regions of…

Algebraic Topology · Mathematics 2022-04-29 Andrew J. Blumberg , Michael Lesnick

Persistent homology is a popular technique in topological data analysis that tracks the lifespans of homological features in a nested sequence of spaces. This data is typically presented in a multi-set called a persistence diagram or a…

Algebraic Topology · Mathematics 2025-11-26 Deni Salja

Multidimensional persistence studies topological features of shapes by analyzing the lower level sets of vector-valued functions. The rank invariant completely determines the multidimensional analogue of persistent homology groups. We prove…

Algebraic Topology · Mathematics 2009-08-04 Andrea Cerri , Barbara Di Fabio , Massimo Ferri , Patrizio Frosini , Claudia Landi

We present a method which provides a unified framework for most stability theorems that have been proved in graph and hypergraph theory. Our main result reduces stability for a large class of hypergraph problems to the simpler question of…

Combinatorics · Mathematics 2022-11-15 Xizhi Liu , Dhruv Mubayi , Christian Reiher

Persistent homology provides a robust methodology to infer topological structures from point cloud data. Here we explore the persistent homology of point clouds embedded into a probabilistic setting, exploiting the theory of point…

Probability · Mathematics 2023-08-07 Daniel Spitz , Anna Wienhard

In topological data analysis, persistent homology characterizes robust topological features in data and it has a summary representation, called a persistence diagram. Statistical research for persistence diagrams have been actively…

Algebraic Topology · Mathematics 2018-10-29 Genki Kusano

Persistent homology is a method for computing the topological features present in a given data. Recently, there has been much interest in the integration of persistent homology as a computational step in neural networks or deep learning. In…

Machine Learning · Computer Science 2020-11-17 Padraig Corcoran , Bailin Deng

We prove a general representation stability result for polynomial coefficient systems which lets us prove representation stability and secondary homological stability for many families of groups with polynomial coefficients. This gives two…

Algebraic Topology · Mathematics 2021-06-22 Jeremy Miller , Peter Patzt , Dan Petersen

The stability of persistence diagrams is among the most important results in applied and computational topology. Most results in the literature phrase stability in terms of the bottleneck distance between diagrams and the $\infty$-norm of…

Algebraic Topology · Mathematics 2025-07-11 Primoz Skraba , Katharine Turner

We introduce persistence matching diagrams induced by set mappings of metric spaces, based on 0-persistent homology of Vietoris-Rips filtrations. Also, we present a geometric definition of the persistence matching diagram that is more…

Algebraic Topology · Mathematics 2024-09-26 Alvaro Torras-Casas , Rocio Gonzalez-Diaz

Persistence diagrams, the most common descriptors of Topological Data Analysis, encode topological properties of data and have already proved pivotal in many different applications of data science. However, since the (metric) space of…

Machine Learning · Statistics 2020-03-10 Mathieu Carrière , Frédéric Chazal , Yuichi Ike , Théo Lacombe , Martin Royer , Yuhei Umeda

Persistent homology (PH) has been widely applied to graph data to extract topological features. However, little attention has been paid to how different distance functions on a graph affect the resulting persistence barcodes and their…

Algebraic Topology · Mathematics 2026-02-17 Eunwoo Heo , Byeongchan Choi , Jae-Hun Jung

Persistent homology has been widely used to study the topology of point clouds in $\mathbb{R}^n$. Standard approaches are very sensitive to outliers, and their computational complexity depends badly on the number of data points. In this…

Algebraic Topology · Mathematics 2022-11-29 Pepijn Roos Hoefgeest , Lucas Slot

In persistent homology analysis, interval modules play a central role in describing the birth and death of topological features across a filtration. In this work, we extend this setting, and propose the use of bipath persistent homology,…

Algebraic Topology · Mathematics 2024-04-04 Toshitaka Aoki , Emerson G. Escolar , Shunsuke Tada

A lower bound for the interleaving distance on persistence vector spaces is given in terms of rank invariants. This offers an alternative proof of the stability of rank invariants.

Computational Geometry · Computer Science 2014-12-11 Claudia Landi

Extended persistence is a technique from topological data analysis to obtain global multiscale topological information from a graph. This includes information about connected components and cycles that are captured by the so-called…

Machine Learning · Computer Science 2024-06-06 Simon Zhang , Soham Mukherjee , Tamal K. Dey

We present a new language for persistent homology in terms of Galois connections. This language has two main advantages over traditional approaches. First, it simplifies and unifies central concepts such as interleavings and matchings.…

Algebraic Topology · Mathematics 2026-04-14 Aziz Burak Gulen , Alexander McCleary

Persistent homology is a central methodology in topological data analysis that has been successfully implemented in many fields and is becoming increasingly popular and relevant. The output of persistent homology is a persistence diagram --…

Statistics Theory · Mathematics 2024-04-24 Konstantin Häberle , Barbara Bravi , Anthea Monod

While standard persistent homology has been successful in extracting information from metric datasets, its applicability to more general data, e.g. directed networks, is hindered by its natural insensitivity to asymmetry. We study a…

Algebraic Topology · Mathematics 2017-04-17 Samir Chowdhury , Facundo Mémoli

We believe three ingredients are needed for further progress in persistence and its use: invariants not relying on decomposition theorems to go beyond 1-dimension, outcomes suitable for statistical analysis and a setup adopted for…

Computational Geometry · Computer Science 2018-07-04 Henri Riihimäki , Wojciech Chacholski