Improving Pronominal and Deictic Co-Reference Resolution with Multi-Modal Features Lin Chen author Anruo Wang author Barbara Di Eugenio author 2011-06 text Proceedings of the SIGDIAL 2011 Conference Joyce Y Chai editor Johanna D Moore editor Rebecca J Passonneau editor David R Traum editor Association for Computational Linguistics Portland, Oregon conference publication chen-etal-2011-improving https://aclanthology.org/W11-2035/ 2011-06 307 311