@incollection{NIPS2005_427,
 title = {Learning from Data of Variable Quality},
 author = {Koby Crammer and Michael Kearns and Jennifer Wortman},
 booktitle = {Advances in Neural Information Processing Systems 18},
 editor = {Y. Weiss and B. Sch\"{o}lkopf and J. Platt},
 publisher = {MIT Press},
 address = {Cambridge, MA},
 pages = {219--226},
 year = {2006}
}