@InProceedings{arora:LIPIcs.STACS.2015.1,
  author =	{Arora, Sanjeev},
  title =	{{Overcoming Intractability in Unsupervised Learning}},
  booktitle =	{32nd International Symposium on Theoretical Aspects of Computer Science (STACS 2015)},
  pages =	{1--1},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-939897-78-1},
  ISSN =	{1868-8969},
  year =	{2015},
  volume =	{30},
  editor =	{Mayr, Ernst W. and Ollinger, Nicolas},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.STACS.2015.1},
  URN =		{urn:nbn:de:0030-drops-49581},
  doi =		{10.4230/LIPIcs.STACS.2015.1},
  annote =	{Keywords: machine learning, unsupervised learning, intractability, NP-hardness}
}