Search Results for author: Suman Ravuri

Found 8 papers, 4 papers with code

Understanding Deep Generative Models with Generalized Empirical Likelihoods

1 code implementation CVPR 2023 Suman Ravuri, Mélanie Rey, Shakir Mohamed, Marc Deisenroth

Understanding how well a deep generative model captures a distribution of high-dimensional data remains an important open challenge.

Machine learning emulation of a local-scale UK climate model

no code implementations29 Nov 2022 Henry Addison, Elizabeth Kendon, Suman Ravuri, Laurence Aitchison, Peter AG Watson

This work demonstrates the effectiveness of diffusion models, a form of deep generative models, for generating much more cheaply realistic high resolution rainfall samples for the UK conditioned on data from a low resolution simulation.

A review of radar-based nowcasting of precipitation and applicable machine learning techniques

no code implementations11 May 2020 Rachel Prudden, Samantha Adams, Dmitry Kangin, Niall Robinson, Suman Ravuri, Shakir Mohamed, Alberto Arribas

A 'nowcast' is a type of weather forecast which makes predictions in the very short term, typically less than two hours - a period in which traditional numerical weather prediction can be limited.

BIG-bench Machine Learning

Classification Accuracy Score for Conditional Generative Models

no code implementations NeurIPS 2019 Suman Ravuri, Oriol Vinyals

Deep generative models (DGMs) of images are now sufficiently mature that they produce nearly photorealistic samples and obtain scores similar to the data distribution on heuristics such as Frechet Inception Distance (FID).

Classification General Classification

Seeing is Not Necessarily Believing: Limitations of BigGANs for Data Augmentation

no code implementations ICLR Workshop LLD 2019 Suman Ravuri, Oriol Vinyals

In fact, for one model in particular, BigGAN, metrics such as Inception Score or Frechet Inception Distance nearly match those of the dataset, suggesting that these models are close to match-ing the distribution of the training set.

Data Augmentation

Learning Implicit Generative Models with the Method of Learned Moments

1 code implementation ICML 2018 Suman Ravuri, Shakir Mohamed, Mihaela Rosca, Oriol Vinyals

We propose a method of moments (MoM) algorithm for training large-scale implicit generative models.

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