Dynamic Use of Ontologies in Dialogue Systems Joana Paulo Pardal author 2007-04 text Proceedings of the NAACL-HLT 2007 Doctoral Consortium Jackson Liscombe editor Phillip Michalak editor Association for Computational Linguistics Rochester, New York conference publication pardal-2007-dynamic https://aclanthology.org/N07-3007/ 2007-04 25 28