@techreport{TechReport_2018_LANL_LA-UR-18-27656_BrownJosey, address = {Los Alamos, NM, USA}, author = {Brown, Forrest Brooks and Josey, Colin James}, institution = {Los Alamos National Laboratory}, month = {August}, number = {LA-UR-18-27656}, title = {{Diagnostics for Undersampling and Clustering in Monte Carlo Criticality Calculations}}, year = {2018} }