Stanton, A and Moore, JM (2017) Lexicase Selection Outperforms Previous Strategies for Incremental Evolution of Virtual Creature Controllers. In: ECAL 2017: 14th European Conference on Artificial Life, 4-8 Sep 2017, Lyon.

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Abstract

Evolving robust behaviors for robots has proven to be a challenging problem. Determining how to optimize behavior for a specific instance, while also realizing behaviors that generalize to variations on the problem often requires highly customized algorithms and problem-specific tuning of the evolutionary platform. Algorithms that can realize robust, generalized behavior without this customization are therefore highly desirable. In this paper, we examine the Lexicase selection algorithm as a possible general algorithm for a wall crossing robot task. Previous work has resulted in specialized strategies to evolve robust behaviors for this task. Here, we show that Lexicase selection is not only competitive with these strategies but after parameter tuning, actually exceeds the performance of the specialized algorithms.

Item Type: Conference or Workshop Item (Paper)
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Divisions: Faculty of Natural Sciences > School of Computing and Maths
Depositing User: Symplectic
Date Deposited: 10 Aug 2017 09:11
Last Modified: 06 Jun 2018 12:43
URI: http://eprints.keele.ac.uk/id/eprint/3579

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