QCS: A Tool for Querying, Clustering, and Summarizing Documents Daniel M Dunlavy author John Conroy author Dianne P O’Leary author 2003 text Companion Volume of the Proceedings of HLT-NAACL 2003 - Demonstrations conference publication dunlavy-etal-2003-qcs https://aclanthology.org/N03-4006/ 2003 11 12