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Tom Davies 0001

dblp:44/2514-1 · also Thomas Davies 0001, Thomas O. M. Davies · DBLP profile ↗
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1ranked-venue papers
1as first author
1since 2021 · last 2023
0000-0002-4721-3017ORCID · verified

Domains — the database's venue-derived domains; a paper can count in several

Artificial intelligence and machine learning · 1 · 1 first-author · 1 since 2021

Expertise — from the expertise taxonomy: the topics of the expert's papers under the CCF categories. A weight counts papers with recency: 1 for a paper about the topic, 0.3 when the topic is its context, halved every five years.

Artificial intelligence
1 paper
Representation and self-supervised learning · 50% Graph learning · 50%
Theoretical computer science
1 paper
Computational geometry · 100%
Interdisciplinary, comprehensive, and emerging computing
1 paper
Bioinformatics and computational biology · 100%

Topics — the 5 heaviest of 5, each with the papers that count most for it

TopicWeightPapersLastEvidence papers
Machine learning › Representation and self-supervised learning
data embedding
0.712023
The Persistent Laplacian for Data Science: Evaluating Higher-Order Persistent Spectral Representations of Data · ICML 2023
Machine learning › Graph learning
topological embedding
0.712023
The Persistent Laplacian for Data Science: Evaluating Higher-Order Persistent Spectral Representations of Data · ICML 2023
Computational geometry › topological data analysis
persistent homology
0.712023
The Persistent Laplacian for Data Science: Evaluating Higher-Order Persistent Spectral Representations of Data · ICML 2023
Computational geometry
topological data analysis
0.712023
The Persistent Laplacian for Data Science: Evaluating Higher-Order Persistent Spectral Representations of Data · ICML 2023
Bioinformatics and computational biology
molecular property prediction
0.212023
The Persistent Laplacian for Data Science: Evaluating Higher-Order Persistent Spectral Representations of Data · ICML 2023

Methods — techniques the papers use, named apart from their topics

persistent laplacian · 2.0cubical complexes · 2.0
YearPublicationVenuePosition
2023 The Persistent Laplacian for Data Science: Evaluating Higher-Order Persistent Spectral Representations of Data
abstract
Persistent homology is arguably the most successful technique in Topological Data Analysis. It combines homology, a topological feature of a data set, with persistence, which tracks the evolution of homology over different scales. The persistent Laplacian is a recent theoretical development that combines persistence with the combinatorial Laplacian, the higher-order extension of the well-known graph Laplacian. Crucially, the Laplacian encode both the homology of a data set, and some additional geometric information not captured by the homology. Here, we provide the first investigation into the efficacy of the persistence Laplacian as an embedding of data for downstream classification and regression tasks. We extend the persistent Laplacian to cubical complexes so it can be used on images, then evaluate its performance as an embedding method on the MNIST and MoleculeNet datasets, demonstrating that it consistently outperforms persistent homology across tasks.
Tom Davies 0001, Zhengchao Wan, Rubén J. Sánchez-García
ICML1