Evolution of supershapes for the generation of three-dimensional designs (2012)
Journal Article
Preen, R. J., & Bull, L. (2012). Evolution of supershapes for the generation of three-dimensional designs

This paper explores the evolution of three-dimensional objects with a simple generative encoding, known as the Superformula. Evolving three-dimensional objects has long been of interest in a wide array of disciplines, from engineering (e.g., robotics... Read More about Evolution of supershapes for the generation of three-dimensional designs.

Cartesian genetic programming for memristive logic circuits (2012)
Journal Article
Howard, G. D., Bull, L., & Adamatzky, A. (2012). Cartesian genetic programming for memristive logic circuits. Lecture Notes in Artificial Intelligence, 7244 LNCS, 37-48. https://doi.org/10.1007/978-3-642-29139-5_4

In this paper memristive logic circuits are evolved using Cartesian Genetic Programming. Graphs comprised of implication logic (IMP) nodes are compared to more ubiquitous NAND circuitry on a number of logic circuit problems and a robotic control task... Read More about Cartesian genetic programming for memristive logic circuits.

Cellular Automaton Supercollider: An abstract model (2012)
Presentation / Conference
Martinez, G. J., & Adamatzky, A. (2012, April). Cellular Automaton Supercollider: An abstract model. Presented at Unconventional Computing, City Univeristy of Hong Kong & Hangzhou Dianzi University, Hong Kong, Hangzhou, P. R. China

A virtual accelerator that smashes together glider-like particles inside a cellular automaton can perform computations, say researchers. By KFC [http://www.technologyreview.com/printer_friendly_blog.aspx?id=26808]

Cellular automaton supercollider: An abstract model (2012)
Presentation / Conference
Martinez, G. J., & Adamatzky, A. (2012, April). Cellular automaton supercollider: An abstract model. Presented at Unconventional Computing, City Univeristy of Hong Kong & Hangzhou Dianzi University, Hong Kong, Hangzhou, P. R. China

A virtual accelerator that smashes together glider-like particles inside a cellular automaton can perform computations, say researchers. By KFC [http://www.technologyreview.com/printer_friendly_blog.aspx?id=26808]

Using genetical and cultural search to design unorganised machines (2012)
Journal Article
Bull, L. (2012). Using genetical and cultural search to design unorganised machines. Evolutionary Intelligence, 5(1), 23-33. https://doi.org/10.1007/s12065-011-0061-4

In 1948 Turing presented a general representation scheme by which to achieve artificial intelligence-his unorganised machines. Significantly, these were a form of discrete dynamical system and yet dynamical representations remain almost unexplored wi... Read More about Using genetical and cultural search to design unorganised machines.

Emergence of self-organized amoeboid movement in a multi-agent approximation of Physarum polycephalum (2012)
Journal Article
Jones, J., & Adamatzky, A. (2012). Emergence of self-organized amoeboid movement in a multi-agent approximation of Physarum polycephalum. Bioinspiration and Biomimetics, 7(1), 016009. https://doi.org/10.1088/1748-3182/7/1/016009

The giant single-celled slime mould Physarum polycephalum exhibits complex morphological adaptation and amoeboid movement as it forages for food and may be seen as a minimal example of complex robotic behaviour. Swarm computation has previously been... Read More about Emergence of self-organized amoeboid movement in a multi-agent approximation of Physarum polycephalum.

The world's colonization and trade routes formation as imitated by slime mould (2012)
Journal Article
Adamatzky, A. (2012). The world's colonization and trade routes formation as imitated by slime mould. International Journal of Bifurcation and Chaos, 22(8), https://doi.org/10.1142/S0218127412300285

The plasmodium of Physarum polycephalum is renowned for spanning sources of nutrients with networks of protoplasmic tubes. The networks transport nutrients and metabolites across the plasmodium's body. To imitate a hypothetical colonization of the wo... Read More about The world's colonization and trade routes formation as imitated by slime mould.

On natural genetic engineering: structural dynamism in random boolean networks (2012)
Journal Article
Bull, L. (2012). On natural genetic engineering: structural dynamism in random boolean networks

This short paper presents an abstract, tunable model of genomic structural change within the cell lifecycle and explores its use with simulated evolution. A well-known Boolean model of genetic regulatory networks is extended to include changes in nod... Read More about On natural genetic engineering: structural dynamism in random boolean networks.

Evolving boolean networks with structural dynamism (2012)
Journal Article
Bull, L. (2012). Evolving boolean networks with structural dynamism. Artificial Life, 18(4), 385-397. https://doi.org/10.1162/ARTL_a_00073

This short article presents an abstract, tunable model of genomic structural change within the cell life cycle and explores its use with simulated evolution. A well-known Boolean model of genetic regulatory networks is extended to include changes in... Read More about Evolving boolean networks with structural dynamism.

A simple computational cell: Coupling boolean gene and protein networks (2012)
Journal Article
Bull, L. (2012). A simple computational cell: Coupling boolean gene and protein networks. Artificial Life, 18(2), 223-236

This article presents an abstract, tunable model containing two of the principal information-processing features of cells and explores its use with simulated evolution. The random Boolean model of genetic regulatory networks is extended to include a... Read More about A simple computational cell: Coupling boolean gene and protein networks.

Towards physarum engines (2012)
Journal Article
Tsuda, S., Jones, J., & Adamatzky, A. (2012). Towards physarum engines. Applied Bionics and Biomechanics, 9(3), 221-240. https://doi.org/10.3233/ABB-2012-0059

The slime mould Physarum polycephalum is a suitable candidate organism for soft-matter robotics because it exhibits controllable transport, movement and guidance behaviour. Physarum may be considered as a smart computing and actuating material since... Read More about Towards physarum engines.

Complex dynamics of elementary cellular automata emerging from chaotic rules (2012)
Journal Article
Martínez, G. J., Adamatzky, A., & Alonso-Sanz, R. (2012). Complex dynamics of elementary cellular automata emerging from chaotic rules. International Journal of Bifurcation and Chaos, 22(2), https://doi.org/10.1142/S021812741250023X

We show techniques of analyzing complex dynamics of cellular automata (CA) with chaotic behavior. CA are well-known computational substrates for studying emergent collective behavior, complexity, randomness and interaction between order and chaotic s... Read More about Complex dynamics of elementary cellular automata emerging from chaotic rules.

Towards an intelligent distributed conveyor (2012)
Journal Article
Georgilas, I., Adamatzky, A., & Melhuish, C. (2012). Towards an intelligent distributed conveyor. Lecture Notes in Artificial Intelligence, 7429, 457-458

Manipulation, orientation and handling of components, subparts and finished products is an essential element of any industrial process, which attracts substantial portion of resources and infrastructure. A classic manipulation, e.g. robot arms, is no... Read More about Towards an intelligent distributed conveyor.

Computing with liquid crystal fingers: Models of geometric and logical computation (2011)
Journal Article
Younger, D., Matranga, M. A., Kitson, S., Adamatzky, A., & de Lacy Costello, B. (2011). Computing with liquid crystal fingers: Models of geometric and logical computation. Physical Review E, 84(6), https://doi.org/10.1103/PhysRevE.84.061702

When a voltage is applied across a thin layer of cholesteric liquid crystal, fingers of cholesteric alignment can form and propagate in the layer. In computer simulation, based on experimental laboratory results, we demonstrate that these cholesteric... Read More about Computing with liquid crystal fingers: Models of geometric and logical computation.

Comparison of ant-inspired gatherer allocation approaches using memristor-based environmental models (2011)
Presentation / Conference
Gale, E., de Lacy Costello, B., & Adamatzky, A. (2011, December). Comparison of ant-inspired gatherer allocation approaches using memristor-based environmental models. Paper presented at Bioadcom 2011 Workshop on Bio-inspired Approaches to Advanced Computing and Communications (BioAdcom2011), York, England

Memristors are used to compare three gathering techniques in an already-mapped environment where resource locations are known. The All Site model, which apportions gatherers based on the modeled memristance of that path, proves to be good at increasi... Read More about Comparison of ant-inspired gatherer allocation approaches using memristor-based environmental models.

Influences on the formation and evolution of Physarum polycephalum inspired emergent transport networks (2011)
Journal Article
Jones, J. (2011). Influences on the formation and evolution of Physarum polycephalum inspired emergent transport networks. Natural Computing, 10(4), 1345-1369. https://doi.org/10.1007/s11047-010-9223-z

Influences on the formation and evolution of Physarum polycephalum inspired emergent transport networks (2011)
Journal Article
Jones, J. (2011). Influences on the formation and evolution of Physarum polycephalum inspired emergent transport networks. Natural Computing, 10(4), 1345-1369. https://doi.org/10.1007/s11047-010-9223-z

The single-celled organism Physarum polycephalum efficiently constructs and minimises dynamical nutrient transport networks resembling proximity graphs in the Toussaint hierarchy. We present a particle model which collectively approximates the behavi... Read More about Influences on the formation and evolution of Physarum polycephalum inspired emergent transport networks.

Logical and arithmetic circuits in Belousov-Zhabotinsky encapsulated disks (2011)
Journal Article
Holley, J., Jahan, I., De Lacy Costello, B., Bull, L., & Adamatzky, A. (2011). Logical and arithmetic circuits in Belousov-Zhabotinsky encapsulated disks. Physical Review E, 84(5), 056110. https://doi.org/10.1103/PhysRevE.84.056110

Excitation waves on a subexcitable Belousov-Zhabotinsky (BZ) substrate can be manipulated by chemical variations in the substrate and by interactions with other waves. Symbolic assignment and interpretation of wave dynamics can be used to perform log... Read More about Logical and arithmetic circuits in Belousov-Zhabotinsky encapsulated disks.

Neuromorphic computing with memristors: Preliminary experimental results (2011)
Presentation / Conference
Gale, E., de Lacy Costello, B., & Adamatzky, A. (2011, November). Neuromorphic computing with memristors: Preliminary experimental results. Poster presented at Building Bridges to Build Brains, Edinburgh

Individual memristors have been observed demonstrating neuron-like spiking patterns. It has been shown elsewhere that memristors provide superior modelling for neurons then the Hodgkin-Huxley model. Due to these results we expect memristors to be e... Read More about Neuromorphic computing with memristors: Preliminary experimental results.

Biology and computing (2011)
Presentation / Conference
Gale, E. (2011, November). Biology and computing. Presented at Faculty Research Colloquium, University of the West of England, Bristol, UK

Memristors, the recently discovered 4th fundamental circuit element, have been used as models for biological components, such as neurons. It may be that neurons are memristors, rather than just conveniently modeled by them. This presentation covers r... Read More about Biology and computing.