Search Results for author: Adam D. Cobb

Found 17 papers, 10 papers with code

Direct Amortized Likelihood Ratio Estimation

1 code implementation17 Nov 2023 Adam D. Cobb, Brian Matejek, Daniel Elenius, Anirban Roy, Susmit Jha

Our estimator is simple to train and estimates the likelihood ratio using a single forward pass of the neural estimator.

Design of Unmanned Air Vehicles Using Transformer Surrogate Models

1 code implementation11 Nov 2022 Adam D. Cobb, Anirban Roy, Daniel Elenius, Susmit Jha

In this paper, we develop an AI Designer that synthesizes novel UAV designs.

Impact of Parameter Sparsity on Stochastic Gradient MCMC Methods for Bayesian Deep Learning

no code implementations8 Feb 2022 Meet P. Vadera, Adam D. Cobb, Brian Jalaian, Benjamin M. Marlin

In this paper, we investigate the potential of sparse network structures to flexibly trade-off model storage costs and inference run time against predictive performance and uncertainty quantification ability.

Bayesian Inference Uncertainty Quantification

Can Sequential Bayesian Inference Solve Continual Learning?

no code implementations pproximateinference AABI Symposium 2022 Samuel Kessler, Adam D. Cobb, Stefan Zohren, Stephen J. Roberts

Previous work in Continual Learning (CL) has used sequential Bayesian inference to prevent forgetting and accumulate knowledge from previous tasks.

Bayesian Inference Continual Learning +1

HumBugDB: A Large-scale Acoustic Mosquito Dataset

1 code implementation14 Oct 2021 Ivan Kiskin, Marianne Sinka, Adam D. Cobb, Waqas Rafique, Lawrence Wang, Davide Zilli, Benjamin Gutteridge, Rinita Dam, Theodoros Marinos, Yunpeng Li, Dickson Msaky, Emmanuel Kaindoa, Gerard Killeen, Eva Herreros-Moya, Kathy J. Willis, Stephen J. Roberts

Our extensive dataset is both challenging to machine learning researchers focusing on acoustic identification, and critical to entomologists, geo-spatial modellers and other domain experts to understand mosquito behaviour, model their distribution, and manage the threat they pose to humans.

Cultural Vocal Bursts Intensity Prediction

Physical System Design Using Hamiltonian Monte Carlo over Learned Manifolds

no code implementations29 Sep 2021 Adam D. Cobb, Anirban Roy, Kaushik Koneripalli, Daniel Elenius, Susmit Jha

We use deep generative models to learn a manifold of the valid design space, followed by Hamiltonian Monte Carlo (HMC) with simulated annealing to explore and optimize design over the learned manifold, producing a diverse set of optimal designs.

valid

Scaling Hamiltonian Monte Carlo Inference for Bayesian Neural Networks with Symmetric Splitting

1 code implementation14 Oct 2020 Adam D. Cobb, Brian Jalaian

Hamiltonian Monte Carlo (HMC) is a Markov chain Monte Carlo (MCMC) approach that exhibits favourable exploration properties in high-dimensional models such as neural networks.

Uncertainty Quantification

URSABench: Comprehensive Benchmarking of Approximate Bayesian Inference Methods for Deep Neural Networks

1 code implementation8 Jul 2020 Meet P. Vadera, Adam D. Cobb, Brian Jalaian, Benjamin M. Marlin

In this paper, we describe initial work on the development ofURSABench(the Uncertainty, Robustness, Scalability, and Accu-racy Benchmark), an open-source suite of bench-marking tools for comprehensive assessment of approximate Bayesian inference methods with a focus on deep learning-based classification tasks

Bayesian Inference Benchmarking

Accurate Machine Learning Atmospheric Retrieval via a Neural Network Surrogate Model for Radiative Transfer

no code implementations5 Mar 2020 Michael D. Himes, Joseph Harrington, Adam D. Cobb, Atilim Gunes Baydin, Frank Soboczenski, Molly D. O'Beirne, Simone Zorzan, David C. Wright, Zacchaeus Scheffer, Shawn D. Domagal-Goldman, Giada N. Arney

Machine learning (ML) has recently been shown to provide a significant reduction in runtime for retrievals, mainly by training inverse ML models that predict parameter distributions, given observed spectra, albeit with reduced posterior accuracy.

Instrumentation and Methods for Astrophysics Earth and Planetary Astrophysics

HumBug Zooniverse: a crowd-sourced acoustic mosquito dataset

1 code implementation14 Jan 2020 Ivan Kiskin, Adam D. Cobb, Lawrence Wang, Stephen Roberts

Mosquitoes are the only known vector of malaria, which leads to hundreds of thousands of deaths each year.

Introducing an Explicit Symplectic Integration Scheme for Riemannian Manifold Hamiltonian Monte Carlo

1 code implementation14 Oct 2019 Adam D. Cobb, Atılım Güneş Baydin, Andrew Markham, Stephen J. Roberts

We introduce a recent symplectic integration scheme derived for solving physically motivated systems with non-separable Hamiltonians.

Bayesian Inference

An Ensemble of Bayesian Neural Networks for Exoplanetary Atmospheric Retrieval

1 code implementation25 May 2019 Adam D. Cobb, Michael D. Himes, Frank Soboczenski, Simone Zorzan, Molly D. O'Beirne, Atılım Güneş Baydin, Yarin Gal, Shawn D. Domagal-Goldman, Giada N. Arney, Daniel Angerhausen

We expand upon their approach by presenting a new machine learning model, \texttt{plan-net}, based on an ensemble of Bayesian neural networks that yields more accurate inferences than the random forest for the same data set of synthetic transmission spectra.

BIG-bench Machine Learning Retrieval

Bayesian Deep Learning for Exoplanet Atmospheric Retrieval

no code implementations8 Nov 2018 Frank Soboczenski, Michael D. Himes, Molly D. O'Beirne, Simone Zorzan, Atilim Gunes Baydin, Adam D. Cobb, Yarin Gal, Daniel Angerhausen, Massimo Mascaro, Giada N. Arney, Shawn D. Domagal-Goldman

Here we present an ML-based retrieval framework called Intelligent exoplaNet Atmospheric RetrievAl (INARA) that consists of a Bayesian deep learning model for retrieval and a data set of 3, 000, 000 synthetic rocky exoplanetary spectra generated using the NASA Planetary Spectrum Generator.

Retrieval

Loss-Calibrated Approximate Inference in Bayesian Neural Networks

1 code implementation10 May 2018 Adam D. Cobb, Stephen J. Roberts, Yarin Gal

Current approaches in approximate inference for Bayesian neural networks minimise the Kullback-Leibler divergence to approximate the true posterior over the weights.

Autonomous Driving Semantic Segmentation

Learning from lions: inferring the utility of agents from their trajectories

no code implementations7 Sep 2017 Adam D. Cobb, Andrew Markham, Stephen J. Roberts

We build a model using Gaussian processes to infer a spatio-temporal vector field from observed agent trajectories.

Decision Making Gaussian Processes

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