Logical Composition in Lifelong Reinforcement Learning - Crossminds
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Logical Composition in Lifelong Reinforcement Learning
Jul 14, 2020
Presented at ICML 2020 LifelongML Workshop. TLDR: We propose a framework for lifelong learning that leverages zero-shot logical composition to solve new tasks that are expressible as logical combinations of previously learned tasks. Abstract: The ability to produce novel behaviors from existing skills is an important property of lifelong learning agents. We build on recent work which formalises a Boolean algebra over the space of tasks and value functions, and show how this can be leveraged to tackle the lifelong learning problem. We propose an algorithm that determines whether a new task can be immediately solved using an agent’s existing abilities, or whether the task should be learned from scratch. We verify our approach in the Four Rooms domain, where an agent learns a set of skills throughout its lifetime, and then composes them to solve a combinatorially large number of new tasks in a zero-shot manner.
ICML 2020
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