Hilda Hardy Tomek Strzalkowski Min Wu Cristian Ursu Nick Webb Alan W. Biermann R. Bryce Inouye Ashley McKenzie Data-Driven Strategies for an Automated Dialogue System. 71-78 2004 ACL http://acl.ldc.upenn.edu/acl2004/main/pdf/94_pdf_2-col.pdf db/conf/acl/acl2004.html#HardySWUWBIM04