no code implementations • 9 Feb 2024 • Peter Vamplew, Cameron Foale, Richard Dazeley
Multi-objective reinforcement learning (MORL) algorithms extend conventional reinforcement learning (RL) to the more general case of problems with multiple, conflicting objectives, represented by vector-valued rewards.
no code implementations • 5 Feb 2024 • Peter Vamplew, Cameron Foale, Conor F. Hayes, Patrick Mannion, Enda Howley, Richard Dazeley, Scott Johnson, Johan Källström, Gabriel Ramos, Roxana Rădulescu, Willem Röpke, Diederik M. Roijers
Research in multi-objective reinforcement learning (MORL) has introduced the utility-based paradigm, which makes use of both environmental rewards and a function that defines the utility derived by the user from those rewards.
Multi-Objective Reinforcement Learning reinforcement-learning
no code implementations • 6 Jan 2024 • Kewen Ding, Peter Vamplew, Cameron Foale, Richard Dazeley
One common approach to solve multi-objective reinforcement learning (MORL) problems is to extend conventional Q-learning by using vector Q-values in combination with a utility function.
no code implementations • 7 Jul 2021 • Richard Dazeley, Peter Vamplew, Cameron Foale, Charlotte Young, Sunil Aryal, Francisco Cruz
Over the last few years there has been rapid research growth into eXplainable Artificial Intelligence (XAI) and the closely aligned Interpretable Machine Learning (IML).
no code implementations • 4 Feb 2021 • Adam Bignold, Francisco Cruz, Richard Dazeley, Peter Vamplew, Cameron Foale
Interactive reinforcement learning has allowed speeding up the learning process in autonomous agents by including a human trainer providing extra information to the agent in real-time.
no code implementations • 21 Sep 2020 • Adam Bignold, Francisco Cruz, Richard Dazeley, Peter Vamplew, Cameron Foale
When interacting with a learner agent, humans may provide either evaluative or informative advice.
no code implementations • 3 Jul 2020 • Adam Bignold, Francisco Cruz, Matthew E. Taylor, Tim Brys, Richard Dazeley, Peter Vamplew, Cameron Foale
In this work, while reviewing externally-influenced methods, we propose a conceptual framework and taxonomy for assisted reinforcement learning, aimed at fostering collaboration by classifying and comparing various methods that use external information in the learning process.
1 code implementation • 5 May 2020 • Budi Kurniawan, Peter Vamplew, Michael Papasimeon, Richard Dazeley, Cameron Foale
It then selects from each discrete state an input value and the action with the highest numerical preference as an input/target pair.
no code implementations • 14 Apr 2020 • Peter Vamplew, Cameron Foale, Richard Dazeley
We report a previously unidentified issue with model-free, value-based approaches to multiobjective reinforcement learning in the context of environments with stochastic state transitions.