@inproceedings{SonGloJaa_nips08,
 title  = {Clusters and Coarse Partitions in {LP} Relaxations},
 author = {David Sontag and Amir Globerson and Tommi Jaakkola},
 booktitle = {Advances in Neural Information Processing Systems 21},
 editor = {D. Koller and D. Schuurmans and Y. Bengio and L. Bottou},
 pages = {1537--1544},
 publisher = {MIT Press},
 year = {2009}
}