The proceedings, co-edited by Jane Chandlee (Haverford College, USA), Rémi Eyraud (Saint-Etienne University, France), Jeffrey Heinz (Stony Brook University, USA), Adam Jardine (Rutgers University, USA), and Menno van Zaanen (North-West University, South Africa) have been published by the Proceedings of Machine Learning Research (PMLR) as volume 153 and are now freely available.