A History of Cluster Analysis Using the Classification Society's Bibliography Over Four Decades

The Classification Literature Automated Search Service, an annual bibliography based on citation of one or more of a set of around 80 book or journal publications, ran from 1972 to 2012. We analyze here the years 1994 to 2011. {\em Service}, as it was termed, is produced by the Classification Society. In earlier decades it was distributed with the {\em Journal of Classification}.