The ICML 2013 Workshop on Challenges in Representation Learning focused on
three challenges: the black box learning challenge, the facial expression
recognition challenge, and the multimodal learning challenge. We describe the
datasets created for these challenges and summarize the results of the
competitions. We provide suggestions for organizers of future challenges and
some comments on what kind of knowledge can be gained from machine learning
competitions.

ICML 2013 Workshop 论文研究如何应对代表着机器学习发展中的三大挑战：黑匣子、面部表情、多模态学习等，并描述了相关数据集，总结了比赛结果，并为未来组织者提供指导。