Search Results for author: Petra Kuhnert

Found 6 papers, 1 papers with code

Gaussian Ensemble Belief Propagation for Efficient Inference in High-Dimensional Systems

no code implementations13 Feb 2024 Dan MacKinlay, Russell Tsuchida, Dan Pagendam, Petra Kuhnert

The use of local messages in a graphical model structure ensures that the approach is suited to distributed computing and can efficiently handle complex dependence structures.

Distributed Computing

Resolving Ethics Trade-offs in Implementing Responsible AI

no code implementations16 Jan 2024 Conrad Sanderson, Emma Schleiger, David Douglas, Petra Kuhnert, Qinghua Lu

While the operationalisation of high-level AI ethics principles into practical AI/ML systems has made progress, there is still a theory-practice gap in managing tensions between the underlying AI ethics aspects.

Ethics

A Neural Emulator for Uncertainty Estimation of Fire Propagation

no code implementations10 May 2023 Andrew Bolt, Conrad Sanderson, Joel Janek Dabrowski, Carolyn Huston, Petra Kuhnert

When compared to a related neural model (emulator) which was employed to generate probability maps via ensembles of emulated fires, the proposed approach produces competitive Jaccard similarity scores while being approximately an order of magnitude faster.

Bayesian Physics Informed Neural Networks for Data Assimilation and Spatio-Temporal Modelling of Wildfires

1 code implementation2 Dec 2022 Joel Janek Dabrowski, Daniel Edward Pagendam, James Hilton, Conrad Sanderson, Daniel MacKinlay, Carolyn Huston, Andrew Bolt, Petra Kuhnert

We show that popular optimisation cost functions used in the literature can result in PINNs that fail to maintain temporal continuity in modelled fire-fronts when there are extreme changes in exogenous forcing variables such as wind direction.

Uncertainty Quantification

A Spatio-Temporal Neural Network Forecasting Approach for Emulation of Firefront Models

no code implementations17 Jun 2022 Andrew Bolt, Carolyn Huston, Petra Kuhnert, Joel Janek Dabrowski, James Hilton, Conrad Sanderson

We propose a dedicated spatio-temporal neural network based framework for model emulation, able to capture the complex behaviour of fire spread models.

Data Augmentation

An Emulation Framework for Fire Front Spread

no code implementations23 Mar 2022 Andrew Bolt, Joel Janek Dabrowski, Carolyn Huston, Petra Kuhnert

Empirical observations of bushfire spread can be used to estimate fire response under certain conditions.

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