no code implementations • 27 Feb 2024 • Bernardo Ameneyro, Rebekah Herrman, George Siopsis, Vasileios Maroulas
Topological Data Analysis methods can be useful for classification and clustering tasks in many different fields as they can provide two dimensional persistence diagrams that summarize important information about the shape of potentially complex and high dimensional data sets.
no code implementations • 14 Feb 2024 • Theodore Papamarkou, Tolga Birdal, Michael Bronstein, Gunnar Carlsson, Justin Curry, Yue Gao, Mustafa Hajij, Roland Kwitt, Pietro Liò, Paolo Di Lorenzo, Vasileios Maroulas, Nina Miolane, Farzana Nasrin, Karthikeyan Natesan Ramamurthy, Bastian Rieck, Simone Scardapane, Michael T. Schaub, Petar Veličković, Bei Wang, Yusu Wang, Guo-Wei Wei, Ghada Zamzmi
Topological deep learning (TDL) is a rapidly evolving field that uses topological features to understand and design deep learning models.
1 code implementation • 1 Dec 2022 • Edward C. Mitchell, Brittany Story, David Boothe, Piotr J. Franaszczuk, Vasileios Maroulas
Brains use head direction cells to determine orientation whereas grid cells consist of layers of decked neurons that overlay to provide environment-based navigation.
no code implementations • 8 Nov 2022 • Bernardo Ameneyro, George Siopsis, Vasileios Maroulas
Persistent homology, a powerful mathematical tool for data analysis, summarizes the shape of data through tracking topological features across changes in different scales.
no code implementations • 15 Apr 2021 • Theodore Papamarkou, Farzana Nasrin, Austin Lawson, Na Gong, Orlando Rios, Vasileios Maroulas
Topological data analysis (TDA) studies the shape patterns of data.
no code implementations • 6 Mar 2021 • Mustafa Hajij, Ghada Zamzmi, Theodore Papamarkou, Vasileios Maroulas, Xuanting Cai
In this work, we propose a method for simplicial complex-level representation learning that embeds a simplicial complex to a universal embedding space in a way that complex-to-complex proximity is preserved.
1 code implementation • 14 Jan 2021 • Adam Spannaus, Kody J. H. Law, Piotr Luszczek, Farzana Nasrin, Cassie Putman Micucci, Peter K. Liaw, Louis J. Santodonato, David J. Keffer, Vasileios Maroulas
Significant progress in many classes of materials could be made with the availability of experimentally-derived large datasets composed of atomic identities and three-dimensional coordinates.
no code implementations • 14 Jan 2021 • Ephy R. Love, Benjamin Filippenko, Vasileios Maroulas, Gunnar Carlsson
This work introduces the Topological CNN (TCNN), which encompasses several topologically defined convolutional methods.
no code implementations • NeurIPS Workshop TDA_and_Beyond 2020 • Ephy Love, Benjamin Filippenko, Vasileios Maroulas, Gunnar E. Carlsson
There is considerable interest in making convolutional neural networks (CNNs) that learn on less data, are better at generalizing, and are more easily interpreted.
no code implementations • 24 Sep 2020 • Vasileios Maroulas, Cassie Putman Micucci, Farzana Nasrin
In this work, we analyze and classify these filament networks by transforming them into persistence diagrams whose variability is quantified via a Bayesian framework on the space of persistence diagrams.
no code implementations • 18 Dec 2019 • Farzana Nasrin, Christopher Oballe, David L. Boothe, Vasileios Maroulas
Investigation of human brain states through electroencephalograph (EEG) signals is a crucial step in human-machine communications.
3 code implementations • 7 Jan 2019 • Vasileios Maroulas, Farzana Nasrin, Christopher Oballe
In essence, we model persistence diagrams as Poisson point processes with prior intensities and compute posterior intensities by adopting techniques from the theory of marked point processes.
Methodology 62F15, 60G55, 62-07
no code implementations • 4 Dec 2018 • Vasileios Maroulas, Cassie Putman Micucci, Adam Spannaus
This work incorporates topological features via persistence diagrams to classify point cloud data arising from materials science.