Classifying User Forum Participants: Separating the Gurus from the Hacks, and Other Tales of the Internet Marco Lui author Timothy Baldwin author 2010-12 text Proceedings of the Australasian Language Technology Association Workshop 2010 Nitin Indurkhya editor Simon Zwarts editor Melbourne, Australia conference publication lui-baldwin-2010-classifying https://aclanthology.org/U10-1009/ 2010-12 49 57