Paper Title: Efficient Hierarchical Clustering of Large Data Sets Using P-trees Primary Contact: Anne Denton Mailing Address: Department of Computer Science North Dakota State University Fargo, ND 58105-5164, USA E-mail: anne.denton@ndsu.nodak.edu Telephone: (701) 231-6404 Fax: (701) 231-8255 Authors: Anne Denton, Qiang Ding, Qin Ding, and William Perrizo Department of Computer Science, North Dakota State University Category: Data Mining