Search Results for author: Callum Rhys Tilbury

Found 6 papers, 3 papers with code

Generalisable Agents for Neural Network Optimisation

no code implementations30 Nov 2023 Kale-ab Tessera, Callum Rhys Tilbury, Sasha Abramowitz, Ruan de Kock, Omayma Mahjoub, Benjamin Rosman, Sara Hooker, Arnu Pretorius

Optimising deep neural networks is a challenging task due to complex training dynamics, high computational requirements, and long training times.

Multi-agent Reinforcement Learning Scheduling

Reduce, Reuse, Recycle: Selective Reincarnation in Multi-Agent Reinforcement Learning

1 code implementation31 Mar 2023 Claude Formanek, Callum Rhys Tilbury, Jonathan Shock, Kale-ab Tessera, Arnu Pretorius

'Reincarnation' in reinforcement learning has been proposed as a formalisation of reusing prior computation from past experiments when training an agent in an environment.

Multi-agent Reinforcement Learning reinforcement-learning

Revisiting the Gumbel-Softmax in MADDPG

1 code implementation23 Feb 2023 Callum Rhys Tilbury, Filippos Christianos, Stefano V. Albrecht

This method, however, is statistically biased, and a recent MARL benchmarking paper suggests that this bias makes MADDPG perform poorly in grid-world situations, where the action space is discrete.

Benchmarking Multi-agent Reinforcement Learning

Reinforcement Learning for Economic Policy: A New Frontier?

no code implementations16 Jun 2022 Callum Rhys Tilbury

Agent-based computational economics is a field with a rich academic history, yet one which has struggled to enter mainstream policy design toolboxes, plagued by the challenges associated with representing a complex and dynamic reality.

reinforcement-learning Reinforcement Learning (RL)

BaIT: Barometer for Information Trustworthiness

no code implementations15 Jun 2022 Oisín Nolan, Jeroen van Mourik, Callum Rhys Tilbury

This paper presents a new approach to the FNC-1 fake news classification task which involves employing pre-trained encoder models from similar NLP tasks, namely sentence similarity and natural language inference, and two neural network architectures using this approach are proposed.

Data Augmentation Natural Language Inference +4

Mava: a research library for distributed multi-agent reinforcement learning in JAX

1 code implementation3 Jul 2021 Ruan de Kock, Omayma Mahjoub, Sasha Abramowitz, Wiem Khlifi, Callum Rhys Tilbury, Claude Formanek, Andries Smit, Arnu Pretorius

Our criteria for such software is that it should be simple enough to use to implement new ideas quickly, while at the same time be scalable and fast enough to test those ideas in a reasonable amount of time.

Decision Making Multi-agent Reinforcement Learning +2

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