Steve James
Steve James
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Skill Machines: Temporal Logic Composition in Reinforcement Learning
A major challenge in reinforcement learning is specifying tasks in a manner that is both interpretable and verifiable. One common …
Geraud Nangue Tasse
,
Devon Jarvis
,
Steven James
,
Benjamin Rosman
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World Value Functions: Knowledge Representation for Learning and Planning
We propose world value functions (WVFs), a type of goaloriented general value function that represents how to solve not just a given …
Geraud Nangue Tasse
,
Benjamin Rosman
,
Steven James
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Generalisation in Lifelong Reinforcement Learning through Logical Composition
We leverage logical composition in reinforcement learning to create a framework that enables an agent to autonomously determine whether …
Geraud Nangue Tasse
,
Steven James
,
Benjamin Rosman
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Logical Composition for Lifelong Reinforcement Learning
The ability to produce novel behaviours from existing skills is an important property of lifelong-learning agents. We build on recent …
Geraud Nangue Tasse
,
Steven James
,
Benjamin Rosman
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Learning Object-Centric Representations for High-Level Planning in Minecraft
We propose a method for autonomously learning an object-centric representation of a highdimensional environment that is suitable for …
Steven James
,
Benjamin Rosman
,
George Konidaris
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A Boolean Task Algebra for Reinforcement Learning
We propose a framework for defining a Boolean algebra over the space of tasks. This allows us to formulate new tasks in terms of the …
Geraud Nangue Tasse
,
Steven James
,
Benjamin Rosman
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Learning to Plan with Portable Symbols
We present a framework for autonomously learning a portable symbolic representation that describes a collection of low-level continuous …
Steven James
,
Benjamin Rosman
,
George Konidaris
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Will it Blend? Composing Value Functions in Reinforcement Learning
An important property for lifelong-learning agents is the ability to combine existing skills to solve unseen tasks. In general, …
Benjamin Van Niekerk
,
Steven James
,
Adam Earle
,
Benjamin Rosman
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An Investigation into the Effectiveness of Heavy Rollouts in UCT
Monte Carlo Tree Search (MCTS) is a family of directed search algorithms that has gained widespread attention in recent years, with its …
Steven James
,
Benjamin Rosman
,
George Konidaris
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