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DY: Fachverband Dynamik und Statistische Physik

DY 12: Poster I

DY 12.44: Poster

Dienstag, 24. März 2009, 14:30–16:30, P1A

Evolution of Boolean networks with different selection criteria and different update rules — •Agnes Szejka and Barbara Drossel — Institut für Festkörperphysik, TU Darmstadt, Hochschulstrasse 6, 64289 Darmstadt, Germany

We study the evolution of Boolean networks under various selection criteria. Inspired by biological networks, we select simultaneously for robust attractors and for the ability to respond to external inputs by changing the attractor. Mutations change the connections between the nodes and the update functions. In order to investigate the influence of the type of update functions, we perform our simulations with canalizing as well as with threshold functions. We compare the properties of the fitness landscape that results for different versions of the selection criterion and the update functions, and the properties of the “solutions” found by the evolutionary process.