Results 1 to 10 of about 1,252,117 (301)

Algebraic topology-based machine learning using MRI predicts outcomes in primary sclerosing cholangitis [PDF]

open access: yesEuropean Radiology Experimental, 2022
Background Primary sclerosing cholangitis (PSC) is a chronic cholestatic liver disease that can lead to cirrhosis and hepatic decompensation. However, predicting future outcomes in patients with PSC is challenging.
Yashbir Singh   +20 more
doaj   +3 more sources

Detecting intermediate protein conformations using algebraic topology [PDF]

open access: yesBMC Bioinformatics, 2017
Background Understanding protein structure and dynamics is essential for understanding their function. This is a challenging task due to the high complexity of the conformational landscapes of proteins and their rugged energy levels. In particular, it is
Nurit Haspel   +2 more
doaj   +3 more sources

Algebraic Topology [PDF]

open access: yesarXiv.org, 2013
The chapter provides an introduction to the basic concepts of Algebraic Topology with an emphasis on motivation from applications in the physical sciences. It finishes with a brief review of computational work in algebraic topology, including persistent homology.
Robins, Vanessa
core   +5 more sources

Unveiling the molecular mechanism of SARS-CoV-2 main protease inhibition from 137 crystal structures using algebraic topology and deep learning [PDF]

open access: yesChem Sci, 2020
Currently, there is neither effective antiviral drugs nor vaccine for coronavirus disease 2019 (COVID-19) caused by acute respiratory syndrome coronavirus 2 (SARS-CoV-2).
D. Nguyen   +4 more
semanticscholar   +2 more sources

Representability of algebraic topology for biomolecules in machine learning based scoring and virtual screening [PDF]

open access: yesPLoS Comput Biol, 2017
This work introduces a number of algebraic topology approaches, including multi-component persistent homology, multi-level persistent homology, and electrostatic persistence for the representation, characterization, and description of small molecules and
Zixuan Cang, Lin Mu, G. Wei
semanticscholar   +2 more sources

Algebraic Topology of Multi-Brain Connectivity Networks Reveals Dissimilarity in Functional Patterns during Spoken Communications [PDF]

open access: yesPLoS One, 2016
Human behaviour in various circumstances mirrors the corresponding brain connectivity patterns, which are suitably represented by functional brain networks.
B. Tadić   +3 more
semanticscholar   +2 more sources

Application of Algebraic Topology to Homologous Recombination of DNA [PDF]

open access: yesiScience, 2018
Summary: Brouwer's fixed point theorem, a fundamental theorem in algebraic topology proved more than a hundred years ago, states that given any continuous map from a closed, simply connected set into itself, there is a point that is mapped unto itself ...
Ido Braslavsky, Joel Stavans
doaj   +2 more sources

Neural evidence for image quality perception based on algebraic topology. [PDF]

open access: yesPLoS ONE, 2021
In this paper, the algebraic topological characteristics of brain networks composed of electroencephalogram(EEG) signals induced by different quality images were studied, and on that basis, a neurophysiological image quality assessment approach was ...
Chang Liu   +4 more
doaj   +2 more sources

Algebraic topology

open access: yesGraduate Studies in Mathematics, 2017
This lecture covers several basic methods for standard tasks in data analysis and image processing. A non-exclusive and non-exhaustive list of meth-ods: histograms, dimension reduction, clustering, filters, frequency analysis, morphological methods ...
Claudia Scheimbauer
semanticscholar   +4 more sources

Dual attachment pairs in categorically-algebraic topology

open access: yesApplied General Topology, 2011
The paper is a continuation of our study on developing a new approach to (lattice-valued) topological structures, which relies on category theory and universal algebra, and which is called categorically-algebraic (catalg) topology.
Anna Frascella   +2 more
doaj   +2 more sources

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