Graph-Based Lexicon Expansion with Sparsity-Inducing Penalties Dipanjan Das author Noah A Smith author 2012-06 text Proceedings of the 2012 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies Eric Fosler-Lussier editor Ellen Riloff editor Srinivas Bangalore editor Association for Computational Linguistics Montréal, Canada conference publication das-smith-2012-graph https://aclanthology.org/N12-1086/ 2012-06 677 687