@InProceedings{singletary2001engagement,
  author = 	 {Bradley A. Singletary},
  title = 	 {Learning visual models of social engagement},
  booktitle = 	 {Second International Workshop on Recognition, Analysis and Tracking of Faces and Gestures in Real-time Systems at ICCV (RATFG-RTS 2001). },
  OPTcrossref =  {},
  OPTkey = 	 {},
  OPTpages = 	 {},
  year =	 {2001},
  OPTeditor = 	 {},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  OPTseries = 	 {},
  address =	 {Vancouver, Canada},
  month =	 {July},
  OPTorganization = {},
  OPTpublisher = {},
  OPTnote = 	 {},
  OPTannote = 	 {}
}