Unsupervised structured semantic inference for spoken dialog reservation tasks Alejandra Lorenzo author Lina Rojas-Barahona author Christophe Cerisara author 2013-08 text Proceedings of the SIGDIAL 2013 Conference Maxine Eskenazi editor Michael Strube editor Barbara Di Eugenio editor Jason D Williams editor Association for Computational Linguistics Metz, France conference publication lorenzo-etal-2013-unsupervised https://aclanthology.org/W13-4003/ 2013-08 12 20