Visitors is a very fast Web log analyzer. It can process up to 150,000 lines/second of logs on a modern PC, outputs statistics in plain-text or HTML, and generates a number of Google-specific reports and graphviz graphs of visitors' common paths. It does not require any kind of configuration, nor does it need to be told the exact format of the Web log file to process.
NLTK, the Natural Language Toolkit, is a suite of Python libraries and programs for symbolic and statistical natural language processing. NLTK includes graphical demonstrations and sample data. It is accompanied by extensive documentation, including tutorials that explain the underlying concepts behind the language processing tasks supported by the toolkit.
SimSoup is a graphical artificial chemistry simulator for Linux and Windows. The program enables a chemistry to be defined in terms of molecule types and the possible interactions between them. A simulation run involves setting up a number of molecules of various molecule types in a reactor, and then allowing interactions to take place over a period of time. Interactions taking place in the reactor are shown on a graphical display. The motivation for development of the program is to enable investigations into the behaviour of networks, particularly in relation to 'metabolism first' theories of the origin of life, although the basic design supports modeling of any network in which interactions can take place between nodes. Currently, development has reached the prototype stage.
IBM Web Ontology Manager (WOM) is a lightweight, J2EE Web-based system for managing Web Ontology Language (OWL) ontologies. It enables developers to browse or search the ontologies registered with the system by class or property names. In addition, they can submit a new ontology file.
GIMP circle brushes provides circle brushes for use as "rubber stamps" in the GIMP. They can be used with one click instead of creating outline circles by making a circle, filling with black, shrinking, and filling with white. The following pixel sizes are provided: 6, 12, 15, 20, 24, 30, 40, 50, 60, 80, 100, 140, 200, 300, 400, 500, and 600.