Tree swarm optimization: an approach to PSO-based tree discovery.

Christian Veenhuis Mario Köppen J. Kruger Bertram Nickolay Tree swarm optimization: an approach to PSO-based tree discovery. 1238-1245 2005 conf/cec/2005 Congress on Evolutionary Computation http://dx.doi.org/10.1109/CEC.2005.1554832 db/conf/cec/cec2005.html#VeenhuisKKN05