6/9/2003 - Matthew Sottile released into the open source community a Java Gene Expression Programming toolkit. In his words, "My hope is that this toolkit can be used to rapidly build prototype codes that use GEP, which can then be written in a language such as C or Fortran for real speed. I decided to release it as an open source project to hopefully get others interested in contributing code and improving things.". jGEP is hosted at Sourceforge: https://sourceforge.net/projects/jgep/