Search-Based Exploration and Diagnosis of TOAD-GAN

Maria Edwards, Ming Jiang, Julian Togelius

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    Generative Adversarial Networks (GANs) have been used with great success to generate images. They have also been applied to the task of Procedural Content Generation (PCG) in games, particularly for level generation, with various approaches taken to solving the problem of training data. One of those approaches, TOAD-GAN (Token-Based One-Shot Arbitrary Dimension Generative Adversarial Network) (Awiszus, Schubert, and Rosenhahn 2020), can generate levels based on a single training example and has been able to closely reproduce token patterns found in the training sample. While TOAD-GAN is an impressive achievement, questions remain about what exactly it has learned. Can the generator be made to produce levels that are substantially different from the level it has been trained on? Can it reproduce specific level segments? How different are the generated levels? We investigate these questions and others by using the CMA-ES algorithm for Latent Space Evolution. To make the search space feasible, we use a random projection in latent space. We propose the investigation undertaken here as a paradigm for studies into what machine-learned generators have actually learned, and also as a test of a new method for projecting from a smaller search space to a larger latent space.

    Original languageEnglish (US)
    Title of host publication17th AAAI Conference on Artificial Intelligence and Interactive Digital Entertainment, AIIDE 2021
    PublisherAssociation for the Advancement of Artificial Intelligence
    Pages140-147
    Number of pages8
    ISBN (Electronic)9781713844730
    StatePublished - 2021
    Event17th AAAI Conference on Artificial Intelligence and Interactive Digital Entertainment, AIIDE 2021 - Virtual, Online
    Duration: Oct 11 2021Oct 15 2021

    Publication series

    Name17th AAAI Conference on Artificial Intelligence and Interactive Digital Entertainment, AIIDE 2021

    Conference

    Conference17th AAAI Conference on Artificial Intelligence and Interactive Digital Entertainment, AIIDE 2021
    CityVirtual, Online
    Period10/11/2110/15/21

    ASJC Scopus subject areas

    • Visual Arts and Performing Arts
    • Artificial Intelligence

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