Do greedy assortativity optimization algorithms produce good results? W. Winterbach, D. de Ridder, H.J. Wang, M. Reinders and P. Van Mieghem Eur. Phys. J. B, 85 5 (2012) 151 Published online: 16 May 2012 DOI: 10.1140/epjb/e2012-20899-2