The synthesis of novel 3-substituted pyrrole monomers possessing chiral side groups: A study of their chemical polymerisation and the assessment of their chiral discrimination properties (2003)
Journal Article
de Lacy Costello, B., Ratcliffe, N. M., & Sivanand, P. S. (2003). The synthesis of novel 3-substituted pyrrole monomers possessing chiral side groups: A study of their chemical polymerisation and the assessment of their chiral discrimination properties. Synthetic Metals, 139(1), 43-55. https://doi.org/10.1016/S0379-6779%2802%2901247-X

Novel 3-substituted pyrrole monomers possessing chiral side groups were synthesised. These compounds were successfully polymerised with ferric salts and the polymer materials fabricated into sensors. The sensors were found to elicit differential chan... Read More about The synthesis of novel 3-substituted pyrrole monomers possessing chiral side groups: A study of their chemical polymerisation and the assessment of their chiral discrimination properties.

Thick film organic vapour sensors based on binary mixtures of metal oxides (2003)
Journal Article
Ewen, R. J., de Lacy Costello, B., Ratcliffe, N. M., & Sivanand, P. S. (2003). Thick film organic vapour sensors based on binary mixtures of metal oxides. Sensors and Actuators B: Chemical, 92(1-2), 159-166. https://doi.org/10.1016/S0925-4005%2803%2900258-2

Previously, composite sensors incorporating differing proportions of tin dioxide and zinc oxide were reported which exhibited high sensitivity to a range of organic vapours under dry conditions (0% relative humidity, RH). Most importantly, the compos... Read More about Thick film organic vapour sensors based on binary mixtures of metal oxides.

Experimental reaction-diffusion chemical processors for robot path planning (2003)
Journal Article
Adamatzky, A., de Lacy Costello, B., Ratcliffe, N. M., & Melhuish, C. (2003). Experimental reaction-diffusion chemical processors for robot path planning. Journal of Intelligent and Robotic Systems, 37(3), 233-249. https://doi.org/10.1023/A%3A1025414424756

In this paper we discuss the experimental implementation of a chemical reaction-diffusion processor for robot motion planning in terms of finding the shortest collision-free path for a robot moving in an arena with obstacles. These reaction-diffusion... Read More about Experimental reaction-diffusion chemical processors for robot path planning.

A neural learning classifier system with self-adaptive constructivism (2003)
Presentation / Conference
Bull, L., & Hurst, J. (2003, June). A neural learning classifier system with self-adaptive constructivism. Paper presented at The 2003 Congress on Evolutionary Computation

A note on crossover with interval representations (2003)
Report
Stone, C., & Bull, L. (2003). A note on crossover with interval representations

A prototype sensor system for the early detection of microbially linked spoilage in stored wheat grain (2003)
Journal Article
de Lacy Costello, B., Ewen, R., Gunson, H., Ratcliffe, N. M., Sivanand, P., & Spencer-Phillips, P. T. (2003). A prototype sensor system for the early detection of microbially linked spoilage in stored wheat grain. Measurement Science and Technology, 14(4), 397-409. https://doi.org/10.1088/0957-0233/14/4/301

Spencer-Phillips was Co-Investigator, the lead biologist in this HGCA-funded multi-disciplinary work, and co-wrote the paper. The grant was based on his expertise in the microbiology of post-harvest spoilage.

Genetic algorithm and linear programing to solve a lot-sizing and scheduling problem (2003)
Presentation / Conference
Staggemeier, A. T., Clark, A., Smith, J., & Bull, L. (2003, April). Genetic algorithm and linear programing to solve a lot-sizing and scheduling problem. Paper presented at Proceedings of the 6th Biannual Model and Algorithms to Production and Scheduling Problems 2003, Aussois, France

Spectral properties of reversible one-dimensional cellular automata (2003)
Journal Article
Martínez, G. J., Vergara, S. V., Mora, J. C. S. T., & McIntosh, H. V. (2003). Spectral properties of reversible one-dimensional cellular automata. International Journal of Modern Physics C, 14(3), 379-395. https://doi.org/10.1142/S0129183103004541

Reversible cellular automata are invertible dynamical systems characterized by discreteness, determinism and local interaction. This article studies the local behavior of reversible one-dimensional cellular automata by means of the spectral propertie... Read More about Spectral properties of reversible one-dimensional cellular automata.

A prototype sensor system for the early detection of microbially linked spoilage in stored wheat grain (2003)
Journal Article
Gunson, H., de Lacy Costello, B., Ratcliffe, N. M., Ewen, R. J., Sivanand, P. S., & Spencer-Phillips, P. T. (2003). A prototype sensor system for the early detection of microbially linked spoilage in stored wheat grain. Measurement Science and Technology, 14(4), 397-409. https://doi.org/10.1088/0957-0233/14/4/301

Sensors based on composites of metal oxides were fabricated and tested extensively under high-humidity and high-flow conditions with exposure to vapours reported to increase in the headspace of wheat grain (Triticum aestivum cv Hereward) colonized by... Read More about A prototype sensor system for the early detection of microbially linked spoilage in stored wheat grain.

Towards learning classifier systems for continuous-valued online environments (2003)
Book Chapter
Stone, C., & Bull, L. (2003). Towards learning classifier systems for continuous-valued online environments. In E. Cantu-Paz (Ed.), GECCO'03 Proceedings of the 2003 international conference on Genetic and evolutionary computation: Part II (209-209). Springer

For Real! XCS with Continuous-Valued Inputs (2003)
Journal Article
Stone, C., & Bull, L. (2003). For Real! XCS with Continuous-Valued Inputs. Evolutionary Computation, 11(3), 299-336. https://doi.org/10.1162/106365603322365315

Many real-world problems are not conveniently expressed using the ternary representation typically used by Learning Classifier Systems and for such problems an interval-based representation is preferable. We analyse two interval-based representations... Read More about For Real! XCS with Continuous-Valued Inputs.

Comparing learning classifier systems for continuous-valued online environments (2003)
Journal Article
Stone, C., & Bull, L. (2003). Comparing learning classifier systems for continuous-valued online environments

We investigate Learning Classifier Systems for online environments that consist of real-valued states and which require every action made by the agent to count towards its performance. Two Learning Classifier System architectures are considered, ZCS... Read More about Comparing learning classifier systems for continuous-valued online environments.

Feature construction and selection using genetic programming and a genetic algorithm (2003)
Journal Article
Smith, M. G., & Bull, L. (2003). Feature construction and selection using genetic programming and a genetic algorithm. Lecture Notes in Artificial Intelligence, 2610, 229-237. https://doi.org/10.1007/3-540-36599-0_21

The use of machine learning techniques to automatically analyse data for information is becoming increasingly widespread. In this paper we examine the use of Genetic Programming and a Genetic Algorithm to pre-process data before it is classified usin... Read More about Feature construction and selection using genetic programming and a genetic algorithm.

Production of gliders by collisions in Rule 110 (2003)
Journal Article
Martinez, G. J., McIntosh, H. V., & Mora, J. C. (2003). Production of gliders by collisions in Rule 110. Lecture Notes in Artificial Intelligence, 2801, 175-182

We investigate the construction of all the periodic structures or “gliders” up to now known in the evolution space of the one-dimensional cellular automaton Rule 110. The production of these periodic structures is developed and presented by means of... Read More about Production of gliders by collisions in Rule 110.

Transversality and separation of zeros in second order differential equations (2003)
Journal Article
Laister, R., & Beardmore, R. E. (2003). Transversality and separation of zeros in second order differential equations. Proceedings of the American Mathematical Society, 131(1), 209-218. https://doi.org/10.1090/S0002-9939-02-06546-2

Sufficient conditions on the non-linearity f are given which ensure that non-trivial solutions of second order differential equations of the form Lu = f(t, u) have a finite number of transverse zeros in a given finite time interval. We also obtain a... Read More about Transversality and separation of zeros in second order differential equations.

Robotic experimentation using constructivism within a neural learning classifier system (2003)
Report
Hurst, J., & Bull, L. (2003). Robotic experimentation using constructivism within a neural learning classifier system

On simplifying the payoff prediction in accuracy-based learning classifier system (2003)
Report
Bull, L., & Wyatt, D. (2003). On simplifying the payoff prediction in accuracy-based learning classifier system

Lookahead and latent learning in a neural learning classifier system with self-adaptive constructivism (2003)
Report
Bull, L., & Hurst, J. (2003). Lookahead and latent learning in a neural learning classifier system with self-adaptive constructivism

A simple accuracy-based learning classifier system (2003)
Report
Bull, L. (2003). A simple accuracy-based learning classifier system

Investigating fitness sharing in a simple payoff-based learning classifier system (2003)
Report
Bull, L. (2003). Investigating fitness sharing in a simple payoff-based learning classifier system