Search Results for author: Alexander Norcliffe

Found 9 papers, 7 papers with code

Fourier Neural Differential Equations for learning Quantum Field Theories

1 code implementation28 Nov 2023 Isaac Brant, Alexander Norcliffe, Pietro Liò

A Quantum Field Theory is defined by its interaction Hamiltonian, and linked to experimental data by the scattering matrix.

Faster Training of Neural ODEs Using Gauß-Legendre Quadrature

1 code implementation21 Aug 2023 Alexander Norcliffe, Marc Peter Deisenroth

In this paper, we propose an alternative way to speed up the training of neural ODEs.

Time Series

SurvivalGAN: Generating Time-to-Event Data for Survival Analysis

1 code implementation24 Feb 2023 Alexander Norcliffe, Bogdan Cebere, Fergus Imrie, Pietro Lio, Mihaela van der Schaar

SurvivalGAN outperforms multiple baselines at generating survival data, and in particular addresses the failure modes as measured by the new metrics, in addition to improving downstream performance of survival models trained on the synthetic data.

Fairness Survival Analysis

Benchmarking Continuous Time Models for Predicting Multiple Sclerosis Progression

no code implementations15 Feb 2023 Alexander Norcliffe, Lev Proleev, Diana Mincu, Fletcher Lee Hartsell, Katherine Heller, Subhrajit Roy

Multiple sclerosis is a disease that affects the brain and spinal cord, it can lead to severe disability and has no known cure.

Benchmarking

Learning Feynman Diagrams using Graph Neural Networks

no code implementations25 Nov 2022 Harrison Mitchell, Alexander Norcliffe, Pietro Liò

In the wake of the growing popularity of machine learning in particle physics, this work finds a new application of geometric deep learning on Feynman diagrams to make accurate and fast matrix element predictions with the potential to be used in analysis of quantum field theory.

Graph Attention

Composite Feature Selection using Deep Ensembles

2 code implementations1 Nov 2022 Fergus Imrie, Alexander Norcliffe, Pietro Lio, Mihaela van der Schaar

To do so, we define predictive groups in terms of linear and non-linear interactions between features.

feature selection

Meta-learning using privileged information for dynamics

1 code implementation ICLR Workshop Learning_to_Learn 2021 Ben Day, Alexander Norcliffe, Jacob Moss, Pietro Liò

Neural ODE Processes approach the problem of meta-learning for dynamics using a latent variable model, which permits a flexible aggregation of contextual information.

Meta-Learning

Neural ODE Processes

2 code implementations ICLR 2021 Alexander Norcliffe, Cristian Bodnar, Ben Day, Jacob Moss, Pietro Liò

To address these problems, we introduce Neural ODE Processes (NDPs), a new class of stochastic processes determined by a distribution over Neural ODEs.

Time Series Time Series Analysis

On Second Order Behaviour in Augmented Neural ODEs

1 code implementation NeurIPS 2020 Alexander Norcliffe, Cristian Bodnar, Ben Day, Nikola Simidjievski, Pietro Liò

Neural Ordinary Differential Equations (NODEs) are a new class of models that transform data continuously through infinite-depth architectures.

Image Classification

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