Mark A. Bedau, Andrew Buchanan, Devin W. Chalmers, C. Cooper Francis, Norman H. Packard, Noah M. Pepper. Evidence in the patent record for the evolution of technology using citation and PageRank statistics. In Tom Lenaerts, Mario Giacobini, Hugues Bersini, Paul Bourgine, Marco Dorigo, René Doursat, editors, Advances in Artificial Life: 20th Anniversary Edition - Back to the Origins of Alife, ECAL 2011, Paris, France, August 8-12, 2011. pages 77-84, MIT Press, 2011. [doi]
Abstract is missing.