A suite of libraries and applications using genetic algorithms and AI for financial analysis and simulation. Currently the focus is to route FIX messages to an exchange simulator and use genetic algorithms to explore algorithmic trading strategies.
Nounou is a Java library for handling optical imaging data. The core consists of a modular stream of "filter blocks" that each modify or display the data. It is easily called from Mathematica and Matlab, for advanced figure output.
Franklin Math is an open source Java symbolic computer algebra system (CAS), with similarities to commercial math packages such as MATLAB or Mathematica. It allows numeric and symbolic calculations, with built-in functions including plotting commands.