Skip to main content

Research Repository

Advanced Search

All Outputs (20)

Evolution of plastic learning in spiking networks via memristive connections (2012)
Journal Article
Howard, G., Howard, D., Gale, E., Bull, L., De Lacy Costello, B., & Adamatzky, A. (2012). Evolution of plastic learning in spiking networks via memristive connections. IEEE Transactions on Evolutionary Computation, 16(5), 711-729. https://doi.org/10.1109/TEVC.2011.2170199

This paper presents a spiking neuroevolutionary system which implements memristors as plastic connections, i.e., whose weights can vary during a trial. The evolutionary design process exploits parameter self-adaptation and variable topologies, allowi... Read More about Evolution of plastic learning in spiking networks via memristive connections.

Creating unorganised machines from memristors (2012)
Presentation / Conference
Howard, G. D., Bull, L., Costello, B. D. L., & Adamatzky, A. (2012, September). Creating unorganised machines from memristors. Paper presented at ICNAAM 2012: International Conference of Numerical Analysis and Applied Mathematics, Kos, Greece

Manipulating objects with gliders in cellular automata (2012)
Presentation / Conference
Georgilas, I., Adamatzky, A., & Melhuish, C. (2012, August). Manipulating objects with gliders in cellular automata. Paper presented at Automation Science and Engineering (CASE), 2012 IEEE International Conference on, Seoul, Korea

Micro-scale manipulation of objects is a growing requirement in specialised industries, especially those related to assembly of fragile micro-components. Widely implemented techniques in robotics and automation do not always cope with the delicate na... Read More about Manipulating objects with gliders in cellular automata.

Schlauschleimer in Reichsautobahnen: Slime mould imitates motorway network in Germany (2012)
Journal Article
Schubert, T., & Adamatzky, A. (2012). Schlauschleimer in Reichsautobahnen: Slime mould imitates motorway network in Germany. Kybernetes, 41(7), 1050-1071. https://doi.org/10.1108/03684921211257865

Purpose: The purpose of this paper is to develop experimental laboratory biological techniques for approximation of principle transport networks, optimizing transport links, and developing optimal solutions to current transport problems. It also aims... Read More about Schlauschleimer in Reichsautobahnen: Slime mould imitates motorway network in Germany.

On architectures of circuits implemented in simulated Belousov-Zhabotinsky droplets (2012)
Journal Article
Adamatzky, A., Holley, J., Dittrich, P., Gorecki, J., De Lacy Costello, B., Zauner, K. P., & Bull, L. (2012). On architectures of circuits implemented in simulated Belousov-Zhabotinsky droplets. BioSystems, 109(1), 72-77. https://doi.org/10.1016/j.biosystems.2011.12.007

When lipid vesicles filled with Belousov-Zhabotinsky (BZ) excitable chemical medium are packed in tight assembles, waves of excitation may travel between the vesicles. When several waves meet in a vesicle some fragments may deflect, others can annihi... Read More about On architectures of circuits implemented in simulated Belousov-Zhabotinsky droplets.

Time-dependent wave selection for information processing in excitable media (2012)
Journal Article
Costello, B. D. L., Stevens, W. M., Adamatzky, A., Jahan, I., & de Lacy Costello, B. (2012). Time-dependent wave selection for information processing in excitable media. Physical Review E, 85(6), https://doi.org/10.1103/PhysRevE.85.066129

We demonstrate an improved technique for implementing logic circuits in light-sensitive chemical excitable media. The technique makes use of the constant-speed propagation of waves along defined channels in an excitable medium based on the Belousov-Z... Read More about Time-dependent wave selection for information processing in excitable media.

Different behaviour seen in flexible titanium dioxide sol-gel memristors dependent on the choice of electrode material (2012)
Book Chapter
Gale, E., Pearson, D., Kitson, S., Adamatzky, A., & de Lacy Costello, B. (2012). Different behaviour seen in flexible titanium dioxide sol-gel memristors dependent on the choice of electrode material. In J. Heber, D. Schlom, Y. Tokura, R. Waser, & M. Wuttig (Eds.), Technical Digest of Frontiers in Electronic Materials (577-578). Germany: Nature Conferences & Wiley VCH

Fabrication and modelling of titanium dioxide memristors (2012)
Presentation / Conference
Gale, E., Adamatzky, A., & de Lacy Costello, B. (2012, June). Fabrication and modelling of titanium dioxide memristors. Poster presented at Royal Society of Chemistry, Younger Members Symposium 2012, Nottingham, UK

Concept – including filamentary conduction in the mem-mon theory of memristance improves the model for ‘triangular’ memristors

Filamentary extension of the mem-con theory of memristance and its application to titanium dioxide sol-gel memristors (2012)
Working Paper
Gale, E., de Lacy Costello, B., & Adamatzky, A. Filamentary extension of the mem-con theory of memristance and its application to titanium dioxide sol-gel memristors. Bristol

Titanium dioxide sol-gel memristors have two different modes of operation, believed to be dependent on whether there is bulk memristance, i.e. memristance throughout the whole volume or filamentary memristance, i.e. memristance caused by the connecti... Read More about Filamentary extension of the mem-con theory of memristance and its application to titanium dioxide sol-gel memristors.

The effect of electrode size on memristor properties: an experimental and theoretical study (2012)
Working Paper
Gale, E., de Lacy Costello, B., & Adamatzky, A. The effect of electrode size on memristor properties: an experimental and theoretical study. Bristol

The width of the electrodes is not included in the current phenomenological models of memristance, but is included in the memory-conservation (mem-con) theory of memristance. An experimental study of the effect of changing the top electrode width was... Read More about The effect of electrode size on memristor properties: an experimental and theoretical study.

Physarum attraction: Why slime mold behaves as cats do? (2012)
Journal Article
Adamatzky, A. (2012). Physarum attraction: Why slime mold behaves as cats do?. Communicative and Integrative Biology, 5(3), 297-299. https://doi.org/10.4161/cib.19924

We discuss potential chemical substances responsible for attracting acellular slime mold Physarun polycephalum to valerian root. The contributes toward fundamental research into pheromones and chemo-attracts of primitive organisms such as slime molds... Read More about Physarum attraction: Why slime mold behaves as cats do?.

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]

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.

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.

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.