@InProceedings{das-martins-smith:2012:STARSEM-SEMEVAL, author = {Das, Dipanjan and Martins, Andr\'{e} F. T. and Smith, Noah A.}, title = {An Exact Dual Decomposition Algorithm for Shallow Semantic Parsing with Constraints}, booktitle = {{*SEM 2012}: The First Joint Conference on Lexical and Computational Semantics -- Volume 1: Proceedings of the main conference and the shared task, and Volume 2: Proceedings of the Sixth International Workshop on Semantic Evaluation {(SemEval 2012)}}, month = {7-8 June}, year = {2012}, address = {Montr\'eal, Canada}, publisher = {Association for Computational Linguistics}, pages = {209--217}, url = {http://www.aclweb.org/anthology/S12-1029} }