Genesis - A platform for simulating complex neural systems.OpenBayes - A forum for the development of an open source library for probabilistic graphical models.
NNSYSID Toolbox - A set of MATLAB tools for neural network based identification of nonlinear dynamic systems.
Netlab - A library of MATLAB functions for simulating neural network algorithms based on the book Neural Networks for Pattern Recognition by Chris Bishop.
Propagator - Backpropagation neural networks development system.
Neural Network Toolbox for MATLAB - A comprehensive environment for neural network research, design, and simulation within MATLAB.
Xerion - Neural network simulator based on C and Tcl. Made up of C libraries to build networks, and pre-built simulators.
DELVE - A standard environment for evaluating the performance of learning methods. Includes a number of datasets and an archive of learning methods.
Stuttgart Neural Network Simulator - A simulation environment for research on applications of neural networks. Written in C and has an X based GUI.
Fuzzy Symbolic Connectionist - Automatic construction of neural networks. Incremental learning. Support of fuzzy logic. Hybrid symbolic\connectionist representation. Win3 shareware.
Trans Dimensional Learning - Automatic construction of neural networks using evolutionary processes. Windows 3 shareware from Universal Problem Solvers, Inc.
PDP++ - A neural-network simulation system based on C++. This is the next generation of the PDP software originally released with McClelland and Rumelhart's PDP book.
MATLAB Neural Network Toolbox Tutorial - A tutorial on how to construct custom neural networks starting from an empty network object.
Neu (Neural) Net Work - Very fast working Neural Network ideas not based on the traditional "subtle varying synapses", but on "there's a connection, okay, go on".
Tom-ato's OCR Using a Neural Network - Showcases a java applet designed to recognize hand printed digits using a neural network. Digits can be drawn using the mouse and recognized by the applet in the browser.
SVM-Light - Large-scale support vector machine training software.
Tiberius - Neural network for classification and regression problems. Supports ODBC and Excel.
Torch - A library of state-of-the-art machine learning algorithms. Licensed under the GPL, and designed for Unix and Linux environments.
Neural Network Leaves Recognition - A neuronal network based system to recognize leaves written in Java. A Java-Applet is also available.