Kristian Kersting, Kurt Driessens. Non-parametric policy gradients: a unified treatment of propositional and relational domains. In William W. Cohen, Andrew McCallum, Sam T. Roweis, editors, Machine Learning, Proceedings of the Twenty-Fifth International Conference (ICML 2008), Helsinki, Finland, June 5-9, 2008. Volume 307 of ACM International Conference Proceeding Series, pages 456-463, ACM, 2008. [doi]