Machine Learning Challenges. Evaluating Predictive Uncertainty, Visual Object Classification, and Recognising Tectual Entailment First PASCAL Machine Learning Challenges Workshop, MLCW 2005, Southampton, UK, April 11-13, 2005, Revised Selected Papers - Quiñonero-Candela, Joaquin; Dagan, Ido; Magnini, Bernardo; d’Alché-Buc, Florence (Springer Berlin Heidelberg, 2006)