Browsing by Author "O'Riordan, Colm"
Now showing items 1-20 of 27
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Altering the granularity of neutrality in a multi-layered genetic algorithm
Hill, Seamus; O'Riordan, Colm (SciTePress Digital Library, 2014)By adopting a basic interpretation of the biological processes of transcription and translation, the multilayered GA (MGA) introduces a genotype-phenotype mapping for a haploid genotype, which allows the granularity of the ... -
Analysing the impact of dimensionality on diversity in a multi-layered Genotype-Phenotype mapped genetic algorithm
Hill, Seamus; O'Riordan, Colm (IEEE, 2013-06-20)This paper examines the impact of changes in dimensionality on a multi-layered genotype-phenotype mapped GA. To gain an understanding of the impact we carry out a series of experiments on a number of well understood ... -
Art and analogy through evolutionary computation
Breen, Aidan (NUI Galway, 2019-04-05)In this thesis the development of a computer system capable of generating art through the process of analogy is presented. A visual display is generated analogous to a given piece of music. This analogy is based upon the ... -
Coevolutionary spatial game theory: The impact of abstention and dynamic networks on the evolution of cooperation
Cardinot, Marcos (NUI Galway, 2020-01-15)Since the dawn of evolutionary game theory, the standard models in evolutionary dynamics have been developed under the assumption of a well-mixed population where agents (individuals) can interact with all the other agents ... -
Cyclic dominance in the spatial coevolutionary optional prisoner's dilemma game
Cardinot, Marcos; O'Riordan, Colm; Griffith, Josephine (CEUR-WS.org, 2016-09-20)This paper studies scenarios of cyclic dominance in a coevolutionary spatial model in which game strategies and links between agents adaptively evolve over time. The Optional Prisoner’s Dilemma (OPD) game is employed. ... -
Diversifying techniques and neutrality in genetic algorithms
Hill, Seamus; O'Riordan, Colm (SciTePress Digital Library, 2016)This paper examines the implicit maintenance of diversity within a population through the inclusion of a layered genotype-phenotype map (GP-map) in a Genetic Algorithm (GA), based on the principal of Neutral theory. The ... -
The evolution of behaviours in swarms of robots
Holland, Jane (NUI Galway, 2019-12-09)Evolutionary swarm robotics uses evolutionary computational techniques to synthesise behaviours for a group of autonomous robots. In a swarm of robots, the collective behaviour of the robots results from the local interactions ... -
Evolution of cooperation in N-player social dilemmas: The importance of being mobile
Gibbons, Maud D.; O'Riordan, Colm; Griffith, Josephine (SciTePress Digital Library, 2016)This paper addresses issues regarding the emergence of cooperation in evolutionary, spatial game-theoretic simulations. In the model considered, agents participate in a social dilemma with their neighbours and have the ... -
Evolution of Groups for Common Pool Resource Sharing
Cunningham, Alan (2013-09-27)This thesis concerns the creation of groups of characters which, through the use simple actions, cooperate and coordinate to survive together. These groups are created automatically using Evolutionary Computation methods. A ... -
An evolutionary approach to formation control with mobile robots
Holland, Jane; Griffith, Josephine; O'Riordan, Colm (SciTePress Digital Library, 2016)The field of swarm robotics studies multi-robot systems, emphasising decentralised and self-organising behaviours that deal with limited individual abilities, local sensing and local communication. A robotic system needs ... -
Evolving collective behaviours in simulated kilobots
Holland, Jane; Griffith, Josephine; O'Riordan, Colm (Association for Computing Machinery, 2018-04-09)The field of Evolutionary Robotics has multiple common tasks and widely used benchmark activities such as navigation, obstacle avoidance, and phototaxis. We present an evolutionary approach to learning behaviours that ... -
Examining the impact of neutrality on genetic algorithm population evolution
Hill, Seamus; O'Riordan, Colm (SciTePress Digital Library, 2015-11-12)This paper examines the introduction of neutrality as proposed by Kimura (Kimura, 1968) into the genotype-phenotype mapping of a Genetic Algorithm (GA). The paper looks at the evolution of both a simple GA (SGA) and a ... -
Examining the use of a non-trivial fixed genotype-phenotype mapping in genetic algorithms to induce phenotypic variability over deceptive uncertain landscapes
Hill, Seamus; O'Riordan, Colm (IEEE, 2011-06-05)In nature, living organisms can be viewed as the product of their genotype-phenotype mapping (GP-map). This paper presents a GP-map loosely based on the biological phe- nomena of transcription and translation, to create a ... -
Follow flee: A contingent mobility strategy for the spatial prisoner's dilemma
Gibbons, Maud D.; O'Riordan, Colm; Griffith, Josephine (Springer Verlag, 2016-08-10)This paper presents results from a series of experimental simulations comparing the performances of mobile strategies of agents participating in the Spatial Prisoner's Dilemma game. The contingent movement strategies Walk ... -
A further analysis of the role of heterogeneity in coevolutionary spatial games
Cardinot, Marcos; Griffith, Josephine; O'Riordan, Colm (Elsevier, 2017-11-04)Heterogeneity has been studied as one of the most common explanations of the puzzle of cooperation in social dilemmas. A large number of papers have been published discussing the effects of increasing heterogeneity in ... -
A genetic algorithm with a multi-layered genotype-phenotype mapping
Hill, Seamus; O'Riordan, Colm (SciTePress Digital Library, 2010-08-24)In this paper we investigate the introduction of a multiple-layer genotype-phenotype mapping to a Genetic Algorithm (GA) which attempts to mimic more closely, the effects of nature. The motivation for introducing multiple-layers ... -
Graph topology and the evolution of cooperation
Li, Menglin (2015-01-31)It has been shown that the graph topology can influence the level of cooperation in evolutionary games. Previous research showed that graphs like scale-free networks and small-world networks are more useful in maintaining ... -
Identifying the reality gap between abstract and realistic models using evolved agents and simulated kilobots
Holland, Jane; Gallagher, Ciaran; Griffith, Josephine; O'Riordan, Colm (IEEE, 2018-12-12)A common challenge in evolutionary swarm robotics is the transfer of simulated results into real-world applications. This difficulty can arise in a variety of real-world settings and problems such as sensory differences in ... -
The Influence of Cell Type on Artificial Development
Maher, John; Morgan, Fearghal; O'Riordan, Colm; McGinley, Brian (2013)Two variants of biologically inspired cell model, namely eukaryotic (containing a nucleus) and prokaryotic (without a nucleus) are compared in this research. Experiments are designed to provide an understanding of how the ... -
Modularity, variation and variability in genetic representation
Hill, James (NUI Galway, 2017-12-05)Nature uses a complex genotype-phenotype map to advance a relatively simple genotype space variational topology to an extremely complex phenotypic variational topology. This dissertation introduces a modular, fixed ...