@inproceedings{1458098,
  address = {New York, NY, USA},
  author = {Song, Yang and Zhang, Lu and Giles, C. Lee},
  booktitle = {CIKM '08: Proceeding of the 17th ACM conference on Information and knowledge mining},
  doi = {http://doi.acm.org/10.1145/1458082.1458098},
  interhash = {5c03bc1e658b6d44f053944418bdaec3},
  intrahash = {d330a3537b4a14fbd40661424ec8e465},
  isbn = {978-1-59593-991-3},
  location = {Napa Valley, California, USA},
  pages = {93--102},
  publisher = {ACM},
  title = {A sparse gaussian processes classification framework for fast tag suggestions},
  url = {http://portal.acm.org/citation.cfm?id=1458098},
  year = 2008
}

@inproceedings{1316677,
  address = {New York, NY, USA},
  author = {Farooq, Umer and Kannampallil, Thomas G. and Song, Yang and Ganoe, Craig H. and Carroll, John M. and Giles, Lee},
  booktitle = {GROUP '07: Proceedings of the 2007 international ACM conference on Conference on supporting group work},
  doi = {http://doi.acm.org/10.1145/1316624.1316677},
  interhash = {66928ca91bf0d777b848fe6f7a55de20},
  intrahash = {5d0b61727d81aed019ba4297090108ca},
  isbn = {978-1-59593-845-9},
  location = {Sanibel Island, Florida, USA},
  pages = {351--360},
  publisher = {ACM},
  title = {Evaluating tagging behavior in social bookmarking systems: metrics and design heuristics},
  url = {http://portal.acm.org/citation.cfm?id=1316677&coll=Portal&dl=GUIDE&CFID=9767993&CFTOKEN=86305662},
  year = 2007
}