* presented at 2019 ICML Workshop on Human in the Loop Learning (HILL
2019), Long Beach, USA. arXiv admin note: substantial text overlap with
arXiv:1902.06787 Access Paper or Ask Questions
* Journal of Machine Learning Research (JMLR), JMLR 18(82):1-37,
2017 * 37 pages, 7 figures, 5 tables. Updated to the final version that
appears in JMLR, 18(82):1-37, 2017 Access Paper or Ask Questions