1 code implementation • 3 Dec 2022 • Paweł Dłotko, Davide Gurnari
While being a weaker invariant in one dimension, we show that Euler Characteristic based approaches do not possess some handicaps of persistent homology; we show efficient algorithms to compute them in a distributed way, their generalization to multifiltrations and practical applicability for big data problems.
1 code implementation • 2 Sep 2021 • Paweł Dłotko, Davide Gurnari, Radmila Sazdanovic
Mapper and Ball Mapper are Topological Data Analysis tools used for exploring high dimensional point clouds and visualizing scalar-valued functions on those point clouds.
no code implementations • NeurIPS Workshop TDA_and_Beyond 2020 • Ciara Frances Loughrey, Nick Orr, Anna Jurek-Loughrey, Paweł Dłotko
Mapper algorithm can be used to build graph-based representations of high-dimensional data capturing structurally interesting features such as loops, flares or clusters.
1 code implementation • 22 Jan 2019 • Paweł Dłotko
Topological data analysis provides a collection of tools to encapsulate and summarize the shape of data.
Algebraic Topology
1 code implementation • 21 Dec 2018 • Bartosz Zieliński, Michał Lipiński, Mateusz Juda, Matthias Zeppelzauer, Paweł Dłotko
Persistent homology (PH) is a rigorous mathematical theory that provides a robust descriptor of data in the form of persistence diagrams (PDs).
no code implementations • 6 Sep 2013 • Paweł Dłotko, Ruben Specogna
This paper introduces a novel topology preserving thinning algorithm which removes \textit{simple cells}---a generalization of simple points---of a given cell complex.