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Observation, characterization and modeling of memristor current spikes (2013)
Journal Article
Gale, E., de Lacy Costello, B., & Adamatzky, A. (2013). Observation, characterization and modeling of memristor current spikes. https://doi.org/10.12785/amis/070418

Memristors have been compared to neurons (usually specifically the synapses) since 1976 but no experimental evidence has been offered for support for this position. Here we highlight that memristors naturally form fast-response, highly reproducible a... Read More about Observation, characterization and modeling of memristor current spikes.

Does the D.C. response of memristors allow robotic short-term memory and a possible route to artificial time perception? (2013)
Presentation / Conference
Gale, E., de Lacy Costello, B., & Adamatzky, A. (2013, May). Does the D.C. response of memristors allow robotic short-term memory and a possible route to artificial time perception?. Paper presented at Workshop Unconventional Approaches to Robotics, Automation and Control Inspired by Nature (UARACIN) in:, Karlsruhe

Time perception is essential for task switching, and in the mammalian brain appears alongside other processes. Memristors are electronic components used as synapses and as models for neurons. The d.c. response of memristors can be considered as a typ... Read More about Does the D.C. response of memristors allow robotic short-term memory and a possible route to artificial time perception?.

Design of a hybrid robot control system using memristor-model and ant-inspired based information transfer protocols (2013)
Presentation / Conference
Gale, E., de Lacy Costello, B., & Adamatzky, A. (2013, May). Design of a hybrid robot control system using memristor-model and ant-inspired based information transfer protocols. Paper presented at Workshop on Unconventional Approaches to Robotics, Automation and Control Inspired by Nature, Karlsruhe

It is not always possible for a robot to process all the information from its sensors in a timely manner and thus quick and yet valid approximations of the robot's situation are needed. Here we design hybrid control for a robot within this limit usin... Read More about Design of a hybrid robot control system using memristor-model and ant-inspired based information transfer protocols.

Manipulating with excitations: Waves or gliders? (2013)
Presentation / Conference
Georgilas, I., Adamatzky, A., & Melhuish, C. (2013, May). Manipulating with excitations: Waves or gliders?. Paper presented at ICRA 2013 Workshop - Unconventional Approaches to Robotics, Automation and Control, Inspired by Nature (UARACIN), Karlsruhe, Germany

Excitable media are classical examples of un- conventional computing devices. Using waves to represent information and wave interactions to represent information processing, excitable media achieve computation versatility comparable to traditional te... Read More about Manipulating with excitations: Waves or gliders?.

Beyond Markov chains, towards adaptive memristor network-based music generation (2013)
Presentation / Conference
Gale, E., Matthews, O., de Lacy Costello, B., & Adamatzky, A. (2013, April). Beyond Markov chains, towards adaptive memristor network-based music generation. Paper presented at First AISB symposium on Music and Unconventional Computing, University of Exeter, UK

We undertook a study of the use of a memristor network for music generation, making use of the memristor's memory to go beyond the Markov hypothesis. Seed transition matrices are created and populated using memristor equations, and which are shown to... Read More about Beyond Markov chains, towards adaptive memristor network-based music generation.

Toward turing’s A-type unorganised machines in an unconventional substrate: A dynamic representation in compartmentalised excitable chemical media (2013)
Book Chapter
Bull, L., Holley, J., De Lacy Costello, B., & Adamatzky, A. (2013). Toward turing’s A-type unorganised machines in an unconventional substrate: A dynamic representation in compartmentalised excitable chemical media. . Springer. https://doi.org/10.1007/978-3-642-37225-4_11

© Springer-Verlag Berlin Heidelberg 2013. Turing presented a general representation scheme by which to achieve artificial intelligence – unorganised machines. Significantly, these were a form of discrete dynamical system and yet such representations... Read More about Toward turing’s A-type unorganised machines in an unconventional substrate: A dynamic representation in compartmentalised excitable chemical media.

Bio-development of motorway network in the Netherlands: A slime mould approach (2013)
Journal Article
Adamatzky, A., Lees, M., & Sloot, P. (2013). Bio-development of motorway network in the Netherlands: A slime mould approach. Advances in Complex Systems, 16(2-3), https://doi.org/10.1142/S0219525912500348

Plasmodium of a cellular slime mould Physarum polycephalum is a very large eukaryotic microbe visible to the unaided eye. During its foraging behavior the plasmodium spans sources of nutrients with a network of protoplasmic tubes. In this paper we at... Read More about Bio-development of motorway network in the Netherlands: A slime mould approach.

Designing complex dynamics in cellular automata with memory (2013)
Journal Article
Martínez, G. J., Martinez, G. J., Adamatzky, A., & Alonso-Sanz, R. (2013). Designing complex dynamics in cellular automata with memory. International Journal of Bifurcation and Chaos, 23(10), 1330035. https://doi.org/10.1142/S0218127413300358

Since their inception at Macy conferences in later 1940s, complex systems have remained the most controversial topic of interdisciplinary sciences. The term "complex system" is the most vague and liberally used scientific term. Using elementary cellu... Read More about Designing complex dynamics in cellular automata with memory.

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