Systems Biology Systems Biology studies molecular interactions in the cell. Many formalisms have been developed: Reaction Graphs, Gene Networks, Process Algebra... Model Repositories

Models are collected, e.g. biomodels.net: Models can be annotated separately, but not inter-related. Model Repositories Models can be fairly large. We clustered some families of interest, and gathered data on reaction graph sizes: Family #models min max median ca oscil 11 6 44 12 circ 11 24 68 43 mapk 11 20 213 51 cell cycle 9 7 334 4