1.8k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Turing InstituteGB178 papers
- University of OxfordGB114 papers
- University of WarwickGB102 papers
- Queen Mary University of LondonGB91 papers
- University of CambridgeGB89 papers
- University College LondonGB81 papers
- Imperial College LondonGB60 papers
- University of EdinburghGB54 papers
- University of ManchesterGB30 papers
- University of ExeterGB25 papers
- University of SouthamptonGB20 papers
- Centre National de la Recherche ScientifiqueFR19 papers
92 papers · 1 filter
An algorithm for simulating Brownian increments on a sphere
Aleksandar Mijatović, Veno Mramor, Gerónimo Uribe Bravo
This paper presents a novel formula for the transition density of the Brownian motion on a sphere of any dimension and discusses an algorithm for the simulation of the increments o…
The Gap on GAP: Tackling the Problem of Differing Data Distributions in Bias-Measuring Datasets
Vid Kocijan, Oana-Maria Camburu, Thomas Lukasiewicz
Diagnostic datasets that can detect biased models are an important prerequisite for bias reduction within natural language processing. However, undesired patterns in the collected…
Interacting discovery processes on complex networks
Iacopo Iacopini, Gabriele Di Bona, Enrico Ubaldi +2
Innovation is the driving force of human progress. Recent urn models reproduce well the dynamics through which the discovery of a novelty may trigger further ones, in an expanding…
Multilevel Delayed Acceptance MCMC with an Adaptive Error Model in PyMC3
Mikkel B. Lykkegaard, Grigorios Mingas, Robert Scheichl +2
Uncertainty Quantification through Markov Chain Monte Carlo (MCMC) can be prohibitively expensive for target probability densities with expensive likelihood functions, for instance…
Improving Fairness and Privacy in Selection Problems
Mohammad Mahdi Khalili, Xueru Zhang, Mahed Abroshan +1
Supervised learning models have been increasingly used for making decisions about individuals in applications such as hiring, lending, and college admission. These models may inher…
Ample simplicial complexes
Chaim Even-Zohar, Michael Farber, Lewis Mead
Motivated by potential applications in network theory, engineering and computer science, we study -ample simplicial complexes. These complexes can be viewed as finite approximat…
HateCheck: Functional Tests for Hate Speech Detection Models
Paul Röttger, Bertram Vidgen, Dong Nguyen +3
Detecting online hate is a difficult task that even state-of-the-art models struggle with. Typically, hate speech detection models are evaluated by measuring their performance on h…
KwARG: Parsimonious reconstruction of ancestral recombination graphs with recurrent mutation
Anastasia Ignatieva, Rune B. Lyngsø, Paul A. Jenkins +1
The reconstruction of possible histories given a sample of genetic data in the presence of recombination and recurrent mutation is a challenging problem, but can provide key insigh…
Magritte, a modern software library for 3D radiative transfer: II. Adaptive ray-tracing, mesh construction and reduction
Frederik De Ceuster, Jan Bolte, Ward Homan +6
Radiative transfer is a notoriously difficult and computationally demanding problem. Yet, it is an indispensable ingredient in nearly all astrophysical and cosmological simulations…
Self-initiated behavioural change and disease resurgence on activity-driven networks
Nicolò Gozzi, Martina Scudeler, Daniela Paolotti +2
We consider a population that experienced a first wave of infections, interrupted by strong, top-down, governmental restrictions and did not develop a significant immunity to preve…
Strongly-Normalizing Higher-Order Relational Queries
Wilmer Ricciotti, James Cheney
Language-integrated query is a powerful programming construct allowing database queries and ordinary program code to interoperate seamlessly and safely. Language-integrated query t…
A Cheeger Cut for Uniform Hypergraphs
Raffaella Mulas
The graph Cheeger constant and Cheeger inequalities are generalized to the case of hypergraphs whose edges have the same cardinality. In particular, it is shown that the second lar…
Simulation of the drawdown and its duration in Lévy models via stick-breaking Gaussian approximation
Jorge González Cázares, Aleksandar Mijatović
We develop a computational method for expected functionals of the drawdown and its duration in exponential Lévy models. It is based on a novel simulation algorithm for the joint la…
Binary Matrix Factorisation via Column Generation
Reka A. Kovacs, Oktay Gunluk, Raphael A. Hauser
Identifying discrete patterns in binary data is an important dimensionality reduction tool in machine learning and data mining. In this paper, we consider the problem of low-rank b…
Higher-order simplicial synchronization of coupled topological signals
Reza Ghorbanchian, Juan G. Restrepo, Joaquín J. Torres +1
Simplicial complexes capture the underlying network topology and geometry of complex systems ranging from the brain to social networks. Here we show that algebraic topology is a fu…
D-dimensional oscillators in simplicial structures: odd and even dimensions display different synchronization scenarios
X. Dai, K. Kovalenko, M. Molodyk +8
From biology to social science, the functioning of a wide range of systems is the result of elementary interactions which involve more than two constituents, so that their descript…
Black-box density function estimation using recursive partitioning
Erik Bodin, Zhenwen Dai, Neill D. F. Campbell +1
We present a novel approach to Bayesian inference and general Bayesian computation that is defined through a sequential decision loop. Our method defines a recursive partitioning o…
Normalized Laplace Operators for Hypergraphs with Real Coefficients
Jürgen Jost, Raffaella Mulas
Chemical hypergraphs and their associated normalized Laplace operators are generalized and studied in the case where each vertex--hyperedge incidence has a real coefficient. We sys…
Effective resistance is more than distance: Laplacians, Simplices and the Schur complement
Karel Devriendt
This article discusses a geometric perspective on the well-known fact in graph theory that the effective resistance is a metric on the nodes of a graph. The classical proofs of thi…
Physics-constrained Bayesian inference of state functions in classical density-functional theory
Peter Yatsyshin, Serafim Kalliadasis, Andrew B. Duncan
We develop a novel data-driven approach to the inverse problem of classical statistical mechanics: given experimental data on the collective motion of a classical many-body system,…
Geometry and symmetry in biochemical reaction systems
Raffaella Mulas, Rubén J. Sánchez-García, Ben D. MacArthur
Complex systems of intracellular biochemical reactions have a central role in regulating cell identities and functions. Biochemical reaction systems are typically studied using the…
Unified treatment of synchronization patterns in generalized networks with higher-order, multilayer, and temporal interactions
Yuanzhao Zhang, Vito Latora, Adilson E. Motter
When describing complex interconnected systems, one often has to go beyond the standard network description to account for generalized interactions. Here, we establish a unified fr…
Radio Galaxy Zoo: New Giant Radio Galaxies in the RGZ DR1catalogue
H. Tang, A. M. M. Scaife, O. I. Wong +5
In this paper, we present the identification of five previously unknown giant radio galaxies (GRGs) using Data Release 1 of the Radio Galaxy Zoo citizen science project and a selec…
Inhibiting failure spreading in complex networks
Franz Kaiser, Vito Latora, Dirk Witthaut
In our daily lives, we rely on the proper functioning of supply networks, from power grids to water transmission systems. A single failure in these critical infrastructures can lea…