title = {${X}$-means: {E}xtending ${K}$-means with Efficient Estimation of the Number of Clusters},
author = {Dan Pelleg and Andrew Moore}, booktitle = {Proc. 17th International Conf. on Machine Learning}, pages = {727--734}, publisher = {Morgan Kaufmann, San Francisco, CA}, url = {citeseer.nj.nec.com/article/pelleg00xmeans.html}, year = {2000},
keywords = {clustering kmeans }