Automated, Explainable Rule Extraction from MAP-Elites Archives

Autor: Emma Hart, Silke Höhl, Neil Urquhart
Rok vydání: 2021
Předmět:
Zdroj: Applications of Evolutionary Computation ISBN: 9783030726980
EvoApplications
DOI: 10.1007/978-3-030-72699-7_17
Popis: Quality-diversity (QD) algorithms that return a large archive of elite solutions to a problem provide insights into how high-performing solutions are distributed throughout a feature-space defined by a user. They are often described as illuminating the feature-space, providing a qualitative illustration of relationships between features and objective quality. However, if there are 1000 s of solutions in an archive, extracting a succinct set of rules that capture these relationships in a quantitative manner (i.e. as a set of rules) is challenging. We propose two methods for the automated generation of rules from data contained in an archive; the first uses Genetic Programming and the second, a rule-induction method known as CN2. Rules are generated from large archives of data produced by running MAP-Elites on an urban logistics problem. A quantitative and qualitative evaluation that includes the end-user demonstrate that the rules are capable of fitting the data, but also highlights some mismatches between the model used by the optimiser and that assumed by the user.
Databáze: OpenAIRE