title: birch : an efficient data clustering method for very large databases. authors: t zhang , r ramakrishnan , m livny. venue: sigmod conference. year: 1996
title: birch : an efficient data clustering method for very large databasesâ '' , jagadish hv , mumick is , eds. authors: t zhang , r ramakrishnan , m livny. venue: proceedings of the 1996 acm sigmod international conference. year: nan