@InProceedings{vlachos:2011:UNSUP, author = {Vlachos, Andreas}, title = {Evaluating unsupervised learning for natural language processing tasks}, booktitle = {Proceedings of the First workshop on Unsupervised Learning in NLP}, month = {July}, year = {2011}, address = {Edinburgh, Scotland}, publisher = {Association for Computational Linguistics}, pages = {35--42}, url = {http://www.aclweb.org/anthology/W11-2205} }