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All Outputs (40)

Neuroevolution of Feedback Control for Object Manipulation by 3D Agents (2016)
Book Chapter
Stanton, A., & Channon, A. (2016). Neuroevolution of Feedback Control for Object Manipulation by 3D Agents. In Proceedings of the Artificial Life Conference 2016 (144-151)

Carlos Gershenson, Tom Froese, Jesus M. Siqueiros, Wendy Aguilar, Eduardo J. Izquierdo and Hiroki Sayama

Monotonicity of fitness landscapes and mutation rate control (2016)
Journal Article
Channon. (2016). Monotonicity of fitness landscapes and mutation rate control. Journal of Mathematical Biology, 1491-1524. https://doi.org/10.1007/s00285-016-0995-3

A common view in evolutionary biology is that mutation rates are minimised. However, studies in combinatorial optimisation and search have shown a clear advantage of using variable mutation rates as a control parameter to optimise the performance of... Read More about Monotonicity of fitness landscapes and mutation rate control.

Optimal mutation rate control under selection in hamming spaces (2015)
Presentation / Conference
Knight, C., Channon, A., Belavkin, R., Krasovec, R., & Aston, E. (2015, July). Optimal mutation rate control under selection in hamming spaces. Presented at Thirteenth European Conference on the Synthesis and Simulation of Living Systems (ECAL 2015), York

Where antibiotic resistance mutations meet quorum-sensing (2014)
Journal Article
Channon. (2014). Where antibiotic resistance mutations meet quorum-sensing. Microbial Cell, 250 - 252. https://doi.org/10.15698/mic2014.07.158

We do not need to rehearse the grim story of the global rise of antibiotic resistant microbes. But what if it were possible to control the rate with which antibiotic resistance evolves by de novo mutation? It seems that some bacteria may already do e... Read More about Where antibiotic resistance mutations meet quorum-sensing.

Mutation rate plasticity in rifampicin resistance depends on Escherichia coli cell-cell interactions (2014)
Journal Article
Channon, A. (2014). Mutation rate plasticity in rifampicin resistance depends on Escherichia coli cell-cell interactions. Nature communications, 3742 -?. https://doi.org/10.1038/ncomms4742

Variation of mutation rate at a particular site in a particular genotype, in other words mutation rate plasticity (MRP), can be caused by stress or ageing. However, mutation rate control by other factors is less well characterized. Here we show that... Read More about Mutation rate plasticity in rifampicin resistance depends on Escherichia coli cell-cell interactions.

Testing the Variability Selection Hypothesis: The Adoption of Social Learning in Increasingly Variable Environments (2012)
Journal Article
Channon. (2012). Testing the Variability Selection Hypothesis: The Adoption of Social Learning in Increasingly Variable Environments. Artificial Life, 317 -324. https://doi.org/10.7551/978-0-262-31050-5-ch042

The variability selection hypothesis predicts the adoption of versatile behaviors and survival strategies, in response to increasingly variable environments. In hominin evolution the most apparent adaptation for versatility is the adoption of social... Read More about Testing the Variability Selection Hypothesis: The Adoption of Social Learning in Increasingly Variable Environments.

Discovering and maintaining behaviours inaccessible to incremental genetic evolution through transcription errors and cultural transmission (2011)
Book Chapter
Channon. (2011). Discovering and maintaining behaviours inaccessible to incremental genetic evolution through transcription errors and cultural transmission. In ECAL 2011 (101 -108). https://doi.org/10.7551/978-0-262-29714-1

In this work the question of whether the introduction of both transcription errors and cultural transmission, in the form of learning by imitation, can enable the evolution of behaviours inaccessible to incremental genetic evolution alone is assessed... Read More about Discovering and maintaining behaviours inaccessible to incremental genetic evolution through transcription errors and cultural transmission.

Critical mutation rate has an exponential dependence on population size (2011)
Book Chapter
Channon. (2011). Critical mutation rate has an exponential dependence on population size. In ECAL 2011 (117 -124)

Populations of individuals exist in a wide range of sizes, from billions of microorganisms to fewer than ten individuals in some critically endangered species. In any evolutionary system, there is significant evolutionary pressure to evolve sequences... Read More about Critical mutation rate has an exponential dependence on population size.

Neuroevolution of agents capable of reactive and deliberative behaviours in novel and dynamic environments (2007)
Journal Article
Channon. (2007). Neuroevolution of agents capable of reactive and deliberative behaviours in novel and dynamic environments. Lecture notes in computer science, 345 - 354. https://doi.org/10.1007/978-3-540-74913-4_35

Both reactive and deliberative qualities are essential for a good action selection mechanism. We present a model that embodies a hybrid of two very different neural network architectures inside an animat: one that controls their high level deliberati... Read More about Neuroevolution of agents capable of reactive and deliberative behaviours in novel and dynamic environments.

Unbounded Evolutionary Dynamics in a System of Agents that Actively Process and Transform Their Environment (2006)
Journal Article
Channon. (2006). Unbounded Evolutionary Dynamics in a System of Agents that Actively Process and Transform Their Environment. Genetic Programming and Evolvable Machines, 253 - 281. https://doi.org/10.1007/s10710-006-9009-3

Bedau et al.'s statistical classification system for long-term evolutionary dynamics provides a test for open-ended evolution. Making this test more rigorous, and passing it, are two of the most important open problems for research into systems of ag... Read More about Unbounded Evolutionary Dynamics in a System of Agents that Actively Process and Transform Their Environment.

The N-strikes-out algorithm: A steady-state algorithm for coevolution (2006)
Journal Article
Channon. (2006). The N-strikes-out algorithm: A steady-state algorithm for coevolution

We introduce the N-strikes-out algorithm, a simple steady-state genetic algorithm for competitive coevolution. The algorithm can be summarised as follows: Run competitions between randomly chosen individuals, keep track of the number of defeats for e... Read More about The N-strikes-out algorithm: A steady-state algorithm for coevolution.

Analysing co-evolution among artificial 3D creatures (2006)
Book Chapter
Channon. (2006). Analysing co-evolution among artificial 3D creatures. In Lecture Notes in Computer Science (167 -178)

This paper is concerned with the analysis of coevolutionary dynamics among 3D artificial creatures, similar to those introduced by Sims (1). Coevolution is subject to complex dynamics which are notoriously difficult to analyse. We introduce an improv... Read More about Analysing co-evolution among artificial 3D creatures.

A virtual creatures model for studies in artificial evolution (2005)
Book Chapter
Channon. (2005). A virtual creatures model for studies in artificial evolution. In 2005 IEEE Congress on Evolutionary Computation, vols 1-3, proceedings (565 -572)

We present the results of our replication of Karl Sims' work on the evolution of artificial creatures in a physically realistic 3D environment. We used standard McCulloch-Pitts neurons instead of a more complex set of ad hoc neurons, which we believe... Read More about A virtual creatures model for studies in artificial evolution.

Improving and still passing the ALife test: Component-normalised activity statistics classify evolution in Geb as unbounded (2003)
Book Chapter
Channon. (2003). Improving and still passing the ALife test: Component-normalised activity statistics classify evolution in Geb as unbounded. In Artificial Life VIII: proceedings of the Eighth International Conference on Artificial Life (173 -181)

Bedau, Snyder & Packard’s (1998) classification system for long-term evolutionary dynamics provides a test for openended evolution. Making this ALife test more rigorous, and passing it, are two of the most important open problems in the field. Previo... Read More about Improving and still passing the ALife test: Component-normalised activity statistics classify evolution in Geb as unbounded.

Towards the evolutionary emergence of increasingly complex advantageous behaviours (2000)
Journal Article
Channon. (2000). Towards the evolutionary emergence of increasingly complex advantageous behaviours. International Journal of Systems Science, 843 -860. https://doi.org/10.1080/002077200406570

The generation of complex entities with advantageous behaviours beyond our manual design capability requires long-term incremental evolution with continuing emergence. In this paper, we argue that artificial selection models, such as traditional gene... Read More about Towards the evolutionary emergence of increasingly complex advantageous behaviours.

Perpetuating evolutionary emergence (1998)
Book Chapter
Channon. (1998). Perpetuating evolutionary emergence. In From Animals to Animats 5: Proceedings of the Fifth International Conference on Simulation of Adaptive Behavior (SAB98), Zurich (534 -539)

Perpetuating evolutionary emergence is the key to artificially evolving increasingly complex systems. In order to generate complex entities with adaptive behaviors beyond our manual design capability, longterm incremental evolution with continuing em... Read More about Perpetuating evolutionary emergence.