@incollection {NIPS2003_AA02,
  author = " Mark Girolami and  Ata Kaban",
  title = " Simplicial Mixtures of Markov Chains: Distributed Modelling of Dynamic User Profiles",
  booktitle = "Advances in Neural Information Processing Systems 16",
  editor = "Sebastian Thrun and Lawrence Saul and Bernhard {Sch\"{o}lkopf}",
  publisher = "MIT Press",
  address = "Cambridge, MA",
  year = "2004",
  keywords = "Markov chains, mixture models, sequential data",
  }