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A suitable feature representation that can both preserve the data intrinsic information and reduce data complexity and dimensionality is key to the performance of machine learning models. Deeply rooted in algebraic topology, persistent…

Algebraic Topology · Mathematics 2018-11-02 Chi Seng Pun , Kelin Xia , Si Xian Lee

Persistent homology (PH) is a method used in topological data analysis (TDA) to study qualitative features of data that persist across multiple scales. It is robust to perturbations of input data, independent of dimensions and coordinates,…

Algebraic Topology · Mathematics 2017-09-13 Nina Otter , Mason A. Porter , Ulrike Tillmann , Peter Grindrod , Heather A. Harrington

Persistent homology (PH) is a rigorous mathematical theory that provides a robust descriptor of data in the form of persistence diagrams (PDs) which are 2D multisets of points. Their variable size makes them, however, difficult to combine…

Machine Learning · Statistics 2019-06-14 Bartosz Zielinski , Michal Lipinski , Mateusz Juda , Matthias Zeppelzauer , Pawel Dlotko

Persistent Homology (PH) is a fundamental tool in computational topology, designed to uncover the intrinsic geometric and topological features of data across multiple scales. Originating within the broader framework of Topological Data…

Algebraic Topology · Mathematics 2025-05-13 Aurelie Jodelle Kemme , Collins Amburo Agyingi

Persistent homology (PH) is a recently developed theory in the field of algebraic topology to study shapes of datasets. It is an effective data analysis tool that is robust to noise and has been widely applied. We demonstrate a general…

Signal Processing · Electrical Eng. & Systems 2020-05-05 Yu-Min Chung , Chuan-Shen Hu , Yu-Lun Lo , Hau-Tieng Wu

Information networks are becoming increasingly popular to capture complex relationships across various disciplines, such as social networks, citation networks, and biological networks. The primary challenge in this domain is measuring…

Algebraic Topology · Mathematics 2019-07-23 Mehmet Emin Aktas , Esra Akbas , Ahmed El Fatmaoui

Topological Data Analysis (TDA) offers a suite of computational tools that provide quantified shape features in high dimensional data that can be used by modern statistical and predictive machine learning (ML) models. In particular,…

Cryptography and Security · Computer Science 2023-07-06 Dominic Gold , Koray Karabina , Francis C. Motta

Multiplexed imaging allows multiple cell types to be simultaneously visualised in a single tissue sample, generating unprecedented amounts of spatially-resolved, biological data. In topological data analysis, persistent homology provides…

Quantitative Methods · Quantitative Biology 2025-05-06 Maria Torras-Pérez , Iris H. R. Yoon , Praveen Weeratunga , Ling-Pei Ho , Helen M. Byrne , Ulrike Tillmann , Heather A. Harrington

In medical image analysis, feature engineering plays an important role in the design and performance of machine learning models. Persistent homology (PH), from the field of topological data analysis (TDA), demonstrates robustness and…

Computer Vision and Pattern Recognition · Computer Science 2025-06-05 Dashti A. Ali , Richard K. G. Do , William R. Jarnagin , Aras T. Asaad , Amber L. Simpson

Persistent homology (PH) is a rigorous mathematical theory that provides a robust descriptor of data in the form of persistence diagrams (PDs). PDs exhibit, however, complex structure and are difficult to integrate in today's machine…

Machine Learning · Statistics 2019-06-11 Bartosz Zieliński , Michał Lipiński , Mateusz Juda , Matthias Zeppelzauer , Paweł Dłotko

Many datasets can be viewed as a noisy sampling of an underlying space, and tools from topological data analysis can characterize this structure for the purpose of knowledge discovery. One such tool is persistent homology, which provides a…

Persistent Homology (PH) is a useful tool to study the underlying structure of a data set. Persistence Diagrams (PDs), which are 2D multisets of points, are a concise summary of the information found by studying the PH of a data set.…

Computational Geometry · Computer Science 2020-11-24 Megan Johnson , Jae-Hun Jung

Recent studies have actively employed persistent homology (PH), a topological data analysis technique, to analyze the topological information in time series data. Many successful studies have utilized graph representations of time series…

Algebraic Topology · Mathematics 2025-12-15 Eunwoo Heo , Jae-Hun Jung

High-accuracy prediction of the physical properties of amorphous materials is challenging in condensed-matter physics. A promising method to achieve this is machine-learning potentials, which is an alternative to computationally demanding…

Machine Learning · Computer Science 2023-05-23 Emi Minamitani , Ippei Obayashi , Koji Shimizu , Satoshi Watanabe

Modern deep neural networks have achieved great successes in medical image analysis. However, the features captured by convolutional neural networks (CNNs) or Transformers tend to be optimized for pixel intensities and neglect key…

Computer Vision and Pattern Recognition · Computer Science 2023-11-30 Yaopeng Peng , Hongxiao Wang , Milan Sonka , Danny Z. Chen

Persistent homology (PH) is a popular tool for topological data analysis that has found applications across diverse areas of research. It provides a rigorous method to compute robust topological features in discrete experimental…

Machine Learning · Computer Science 2023-07-19 Manu Aggarwal , Vipul Periwal

Persistent homology (PH) is a method for generating topology-inspired representations of data. Empirical studies that investigate the properties of PH, such as its sensitivity to perturbations or ability to detect a feature of interest,…

Algebraic Topology · Mathematics 2024-03-05 Shuang Liang , Renata Turkeš , Jiayi Li , Nina Otter , Guido Montúfar

Persistent Homology (PH) has been successfully used to train networks to detect curvilinear structures and to improve the topological quality of their results. However, existing methods are very global and ignore the location of topological…

Computer Vision and Pattern Recognition · Computer Science 2022-12-27 Doruk Oner , Adélie Garin , Mateusz Koziński , Kathryn Hess , Pascal Fua

In recent years, persistent homology (PH) has been successfully applied to real-world data in many different settings. Despite significant computational advances, PH algorithms do not yet scale to large datasets preventing interesting…

Algebraic Topology · Mathematics 2022-03-24 Bernadette J. Stolz

Topological data analysis (TDA) is an active field of mathematics for quantifying shape in complex data. Standard methods in TDA such as persistent homology (PH) are typically focused on the analysis of data consisting of a single entity…

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