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A list of all the posts and pages found on the site. For you robots out there is an XML version available for digesting as well.
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‘In-Between’ Uncertainty in Bayesian Neural Networks
ICML Workshop on Uncertainty and Robustness in Deep Learning, 2019
We show that a common approach to Bayesian neural network inference often fails to model increased uncertainty in-between separated clusters of observed data.
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Convolutional Conditional Neural Processes
International Conference on Learning Representations (ICLR), 2020
Neural Processes are a powerful framework for learning from small datasets in the presence of uncertainty. This work adds convolutional structure to the Neural Process family. Together with my co-authors Yann Dubois and Jonathan Gordon, we wrote a blog explaining what Neural Processes are. It also includes code to run many different Neural Process models.
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On the Expressiveness of Approximate Inference in Bayesian Neural Networks
Neural Information Processing Systems (NeurIPS), 2020
Bayesian neural networks aim to solve the problem of overconfident predictions using probabilistic modelling. However, we show that some common approximations used in Bayesian neural networks lead to undesirable behaviour. Along with Sebastian Farquhar and Yingzhen Li, I gave a short talk explaining this paper. You can also find the slides for a longer version of that talk (given with David Burt at the RIKEN Center).
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Meta-Learning Stationary Stochastic Process Prediction with Convolutional Neural Processes
Neural Information Processing Systems (NeurIPS), 2020
We expand on our previous work on Convolutional Conditional Neural Processes by building a model that can also model dependencies between different outputs.
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The Gaussian Neural Process
Advances in Approximate Bayesian Inference (AABI), 2021
We present a new member of the Neural Process family that meta-learns a map from observed datasets to posterior Gaussian processes.
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How Tight Can PAC-Bayes be in the Small Data Regime?
Neural Information Processing Systems (NeurIPS), 2021
We investigate, both theoretically and empirically, how tight PAC-Bayes generalisation bounds can be made with small datasets.
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Collapsed Variational Bounds for Bayesian Neural Networks
Neural Information Processing Systems (NeurIPS), 2021
We propose a collapsed Evidence Lower Bound (ELBO) for Bayesian Neural Networks that alleviates underfitting.
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Timewarp: Transferable Acceleration of Molecular Dynamics by Learning Time-Coarsened Dynamics
Neural Information Processing Systems (NeurIPS) 2023 (spotlight presentation), 2023
Solving the sampling problem is a longstanding challenge in the field of molecular dynamics, with crucial applications for understanding protein function and drug design. We train a generalisable normalising flow that accelerates sampling for small peptide systems.
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Autoregressive Conditional Neural Processes
International Conference on Learning Representations (ICLR), 2023
We show that applying neural processes autoregressively at test time leads to dramatic improvements in prediction quality, without the need to modify the training procedure or architecture.
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Fast Protein Backbone Generation with SE(3) Flow Matching
NeurIPS Machine Learning for Structural Biology workshop (MLSB) 2023, 2023
Recently, equivariant diffusion models such as RFdiffusion and Chroma have revolutionised the field of de novo protein design. We investigate the use of flow matching as an alternative to diffusion to accelerate the sampling of novel proteins.
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Scalable emulation of protein equilibrium ensembles with generative deep learning
bioArXiv, 2024
Biomolecular Emulator (BioEmu for short) is a model that samples from the approximated equilibrium distribution of structures for a protein monomer, given its amino acid sequence.
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