"1775","Gossip, Sexual Recombination and the El Farol Bar: modelling the emergence of heterogeneity","Brian Arthur's `El Farol Bar' model is extended so that the agents also learn and communicate. The learning and communication is implemented using an evolutionary process acting upon a population of mental models inside each agent. The evolutionary process is based on a Genetic Programming algorithm. Each gene is composed of two tree-structures: one to control its action and one to determine its communication. A detailed case-study from the simulations show how the agents have differentiated so that by the end of the run they had taken on very different roles. Thus the introduction of a flexible learning process and an expressive internal representation has allowed the emergence of heterogeneity.","http://cogprints.org/1775/","Edmonds, Bruce","Gilbert, Nigel"," Edmonds, Bruce (1999) Gossip, Sexual Recombination and the El Farol Bar: modelling the emergence of heterogeneity. [Journal (On-line/Unpaginated)] ","","1999"