VCA: An Experiment with a Multiparty Virtual Chat Agent Samira Shaikh author Tomek Strzalkowski author Sarah Taylor author Nick Webb author 2010-07 text Proceedings of the 2010 Workshop on Companionable Dialogue Systems Yorick Wilks editor Björn Gambäck editor Morena Danieli editor Association for Computational Linguistics Uppsala, Sweden conference publication shaikh-etal-2010-vca https://aclanthology.org/W10-2708/ 2010-07 43 48