Search Results for author: William Harvey

Found 11 papers, 5 papers with code

Semantically Consistent Video Inpainting with Conditional Diffusion Models

no code implementations30 Apr 2024 Dylan Green, William Harvey, Saeid Naderiparizi, Matthew Niedoba, Yunpeng Liu, Xiaoxuan Liang, Jonathan Lavington, Ke Zhang, Vasileios Lioutas, Setareh Dabiri, Adam Scibior, Berend Zwartsenberg, Frank Wood

Current state-of-the-art methods for video inpainting typically rely on optical flow or attention-based approaches to inpaint masked regions by propagating visual information across frames.

Visual Chain-of-Thought Diffusion Models

1 code implementation28 Mar 2023 William Harvey, Frank Wood

Recent progress with conditional image diffusion models has been stunning, and this holds true whether we are speaking about models conditioned on a text description, a scene layout, or a sketch.

Graphically Structured Diffusion Models

1 code implementation20 Oct 2022 Christian Weilbach, William Harvey, Frank Wood

We introduce a framework for automatically defining and learning deep generative models with problem-specific structure.

Flexible Diffusion Modeling of Long Videos

1 code implementation23 May 2022 William Harvey, Saeid Naderiparizi, Vaden Masrani, Christian Weilbach, Frank Wood

We present a framework for video modeling based on denoising diffusion probabilistic models that produces long-duration video completions in a variety of realistic environments.

Autonomous Driving Denoising

Conditional Image Generation by Conditioning Variational Auto-Encoders

1 code implementation ICLR 2022 William Harvey, Saeid Naderiparizi, Frank Wood

We present a conditional variational auto-encoder (VAE) which, to avoid the substantial cost of training from scratch, uses an architecture and training objective capable of leveraging a foundation model in the form of a pretrained unconditional VAE.

Conditional Image Generation Experimental Design +1

Near-Optimal Glimpse Sequences for Training Hard Attention Neural Networks

no code implementations1 Jan 2021 William Harvey, Michael Teng, Frank Wood

We introduce methodology from the BOED literature to approximate this optimal behaviour, and use it to generate `near-optimal' sequences of attention locations.

Experimental Design General Classification +2

Assisting the Adversary to Improve GAN Training

no code implementations3 Oct 2020 Andreas Munk, William Harvey, Frank Wood

Some of the most popular methods for improving the stability and performance of GANs involve constraining or regularizing the discriminator.

Planning as Inference in Epidemiological Models

1 code implementation30 Mar 2020 Frank Wood, Andrew Warrington, Saeid Naderiparizi, Christian Weilbach, Vaden Masrani, William Harvey, Adam Scibior, Boyan Beronov, John Grefenstette, Duncan Campbell, Ali Nasseri

In this work we demonstrate how to automate parts of the infectious disease-control policy-making process via performing inference in existing epidemiological models.

Probabilistic Programming

Attention for Inference Compilation

no code implementations25 Oct 2019 William Harvey, Andreas Munk, Atılım Güneş Baydin, Alexander Bergholm, Frank Wood

We present a new approach to automatic amortized inference in universal probabilistic programs which improves performance compared to current methods.

Efficient Inference Amortization in Graphical Models using Structured Continuous Conditional Normalizing Flows

no code implementations pproximateinference AABI Symposium 2019 Christian Weilbach, Boyan Beronov, William Harvey, Frank Wood

We introduce a more efficient neural architecture for amortized inference, which combines continuous and conditional normalizing flows using a principled choice of structure.

Probabilistic Programming

Near-Optimal Glimpse Sequences for Improved Hard Attention Neural Network Training

no code implementations13 Jun 2019 William Harvey, Michael Teng, Frank Wood

We introduce methodology from the BOED literature to approximate this optimal behaviour, and use it to generate `near-optimal' sequences of attention locations.

Experimental Design General Classification +2

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