Johannes Fürnkranz Eyke Hüllermeier Eneldo Loza Mencía Klaus Brinker Multilabel classification via calibrated label ranking. 133-153 2008 73 Machine Learning 2 http://dx.doi.org/10.1007/s10994-008-5064-8 db/journals/ml/ml73.html#FurnkranzHMB08