@incollection{NIPS2006_305,
 title = {Modeling General and Specific Aspects of Documents  with a Probabilistic Topic Model},
 author = {Chaitanya Chemudugunta and Padhraic Smyth and Mark Steyvers},
 booktitle = {Advances in Neural Information Processing Systems 19},
 editor = {B. Sch\"{o}lkopf and J. Platt and T. Hoffman},
 publisher = {MIT Press},
 address = {Cambridge, MA},
 pages = {241--248},
 year = {2007}
}