Interpretable policies for reinforcement learning by genetic programming

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@Article{HEIN2018158,

• author = "Daniel Hein and Steffen Udluft and Thomas A. Runkler",
• title = "Interpretable policies for reinforcement learning by genetic programming",
• journal = "Engineering Applications of Artificial Intelligence",
• year = "2018",
• volume = "76",
• pages = "158--169",
• month = nov,
• keywords = "genetic algorithms, genetic programming, Interpretable, Reinforcement learning, Model-based, Symbolic regression, Industrial benchmark",
• ISSN = "0952-1976",
• URL = "http://www.sciencedirect.com/science/article/pii/S0952197618301933",
• DOI = "doi:10.1016/j.engappai.2018.09.007",
• abstract = "The search for interpretable reinforcement learning policies is of high academic and industrial interest. Especially for industrial systems, domain experts are more likely to deploy autonomously learned controllers if they are understandable and convenient to evaluate. Basic algebraic equations are supposed to meet these requirements, as long as they are restricted to an adequate complexity. Here we introduce the genetic programming for reinforcement learning (GPRL) approach based on model-based batch reinforcement learning and genetic programming, which autonomously learns policy equations from pre-existing default state-action trajectory samples. GPRL is compared to a straightforward method which uses genetic programming for symbolic regression, yielding policies imitating an existing well-performing, but non-interpretable policy. Experiments on three reinforcement learning benchmarks, i.e., mountain car, cart-pole balancing, and industrial benchmark, demonstrate the superiority of our GPRL approach compared to the symbolic regression method. GPRL is capable of producing well-performing interpretable reinforcement learning policies from pre-existing default trajectory data.",

}

Genetic Programming entries for Daniel Hein Steffen Udluft Thomas A Runkler

Citations