A simple particle system physics engine for processing. I've designed this to be application / domain agnostic. All this is supposed to do is let you make particles, apply forces and calculate the positions of particles over time in real-time. Anything else you need to handle yourself.
T. Ritchey. privately published, (2005)Adapted from the paper "Fritz Zwicky, Morphologie and Policy Analysis", presented at the 16th EURO Conference on Operational Analysis, Brussels, 1998..
O. Medelyan, C. Legg, D. Milne, and I. Witten. (2008)cite arxiv:0809.4530
Comment: An extensive survey of re-using information in Wikipedia in natural
language processing, information retreival and extraction and ontology
building. submitted.
A. Clauset, C. Shalizi, and M. Newman. (2007)cite arxiv:0706.1062Comment: 43 pages, 11 figures, 7 tables, 4 appendices; code available at http://www.santafe.edu/~aaronc/powerlaws/.