title: optics : ordering points to identify the clustering structure. authors: m ankerst , m breunig , h kriegel , j sander. venue: sigmod conference. year: 1999
title: optics : ordering points to identify the cluster structure. authors: m ankerst , m breunig , hp kriegel , j sander. venue: proc . 1999 acm-sigmod int . conf . management of. year: nan