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Dominance In Multi-Population Cultural Algorithms, Santosh Upadhyayula
Dominance In Multi-Population Cultural Algorithms, Santosh Upadhyayula
Electronic Theses and Dissertations
We propose a new approach that can be used for solving the knowledge migration issue in multi-population cultural algorithms (MPCA). In this study we introduce a new method to enable the migration of individuals from one population to another using the concept of complete dominance applied to MPCA. The MPCA’s artificial population comprises of agents that belong to a certain sub-population. In this work we create a dominance multi population cultural algorithm (D-MPCA) with a network of populations that implements a dominance strategy. We hypothesize that the evolutionary advantage of dominance can help improve the performance of MPCA in general …
Finding Nemo's Place In A Complex Animal Society: An Exploration Of The Behavioural And Hormonal Correlates Of Dominance In Amphiprion Ocellaris, Eugene Cheung
Electronic Theses and Dissertations
Exploration of the mechanisms underlying conflict resolution has been key to our understanding of the dynamics driving the formation and organization of complex animal societies. This thesis examines the role of aggression and individual variation on dominance hierarchies and the correlates of expression of cortisol, 11-ketotestosterone, and testosterone on individual social status in novel size-matched Amphiprion ocellaris dominance hierarchies. Here, I report that greater aggressiveness relays higher dominance status during hierarchy establishment, as well as during experimental recruitment of highly aggressive smaller individuals into established groups. Additionally, I show that cortisol expression profiles are related to social status in both …