The first version incorporated decision trees (ID3), and neural networks (backprop), which could both be trained without underlying knowledge of how those techniques worked.

Watson Studio Desktop documentation: https://www.ibm.com/support/knowledgecenter/SSBFT6_1.1.0/mstmap/kc_welcome.html Early versions of the software were called Clementine and were Unix-based.

Clementine was originally developed by a UK company named Integral Solutions Limited (ISL),[10] in Collaboration with artificial intelligence researchers at the University of Sussex.

In order to reach a larger market, ISL then Ported Poplog to Microsoft Windows using the NutCracker package, later named MKS Toolkit to provide the Unix graphical facilities.

IBM SPSS Modeler 15, released in June 2012, introduced significant new functions for social network analysis and entity analytics.