152 <b>Clustering Performance Data Efficiently at Massive Scales</b></a>.
153 <i>Proceedings of the International Conference on Supercomputing (ICS'10)</i>,
154 Tsukuba, Japan, June 1-4, 2010.
155
156 <li>For more on X-Means and the Bayesian Information Criterion:
157 <p>
158 Dan Pelleg and Andrew Moore. <a href="http://www.cs.cmu.edu/~dpelleg/download/xmeans.pdf">
159 <b>X-Means: Extending K-Means with Efficient Estimation of the Number of Clusters</b></a>.
160 <i>Proceedings of the Seventeenth International Conference on Machine Learning</i>,
161 San Francisco, CA. June 29-July 2, 2000. pp 727-734.
162
163 <li>For more on PAM and CLARA:
164 <p>
165 Leonard Kaufman and Peter J. Rousseeuw.
166 <b><a href="http://www.amazon.com/Finding-Groups-Data-Introduction-Probability/dp/0471735787">Finding Groups in Data: An Introduction to Cluster Analysis</a></b>. John Wiley & Sons, Inc., New York.