J. Hallam

Coupling of lateral grating displacement to the output ports of a diffractive Fabry-Perot cavity (2009)

Hallam, J., Chelkowski, S., Freise, A., Hild, S., Barr, B., Strain, K. A., ...

Diffraction gratings have been proposed as core elements in future laser-interferometric gravitational-wave detectors. In this paper, we use a steady-state technique to derive coupling of lateral...

Evaluation of the Non-Government Treatment Grants Program (2008)

Hallam, J, Bruno, RB

Covariance Representations of Partial Geometric Constraints for 3D Pose Estimation (2007)

R. Fisher, M. Waite, M. Orr, J. Hallam

We explore the potential of variance matrices to represent not just statistical error on object pose estimates but also partially constrained degrees of freedom. Using an iterated extended Kalman...

Acknowledgements (2007)

Freek Stulp, Dr. J. Hallam

First of all, I would like to thank Craig Robertson, colleague and friend, for all his help and comment. His advice has been invaluable to this dissertation. Also a variety of thanks to all my...

Pupils' perceptions of an alternative curriculum: Skill Force (2007)

Hallam, S., Rogers, L., Rhamie, J., Shaw, J., Rees, E., Haskins, H., ...

Alternative curricula at Key Stage 4 have been implemented to help young people who may be disaffected from school to re-engage with learning. Skill Force is one example of an alternative curriculum....

Towards emerging complex cooperative behaviours in flatland: rewarding over mimicking (2007)

Yannakakis, G., Levine, J.M., Hallam, J.

This paper compares supervised and unsupervised learning mechanisms for the emergence of cooperative multiagent spatial coordination using a top-down approach. By observing the global performance of...

Towards emerging complex cooperative behaviours in flatland: rewarding over mimicking (2007)

Yannakakis, G., Levine, J.M., Hallam, J.

This paper compares supervised and unsupervised learning mechanisms for the emergence of cooperative multiagent spatial coordination using a top-down approach. By observing the global performance of...

Towards emerging complex cooperative behaviours in flatland: rewarding over mimicking (2007)

Yannakakis, G., Levine, J.M., Hallam, J.

This paper compares supervised and unsupervised learning mechanisms for the emergence of cooperative multiagent spatial coordination using a top-down approach. By observing the global performance of...

Evolutionary computation variants for cooperative spatial coordination (2005)

Yannakakis, G., Levine, J.M., Hallam, J.

This paper presents a comparative study between genetic and probabilistic search approaches of evolutionary computation. They are both applied for optimizing the behavior of multiple...

A simple, adaptive locomotion toy-system (2004)

Buchli, J., Ijspeert, A.J., Schaal, S., Ijspeert, A.J., Billard, A., Vijayakumar, S., ...

In order to make the transfer of biological principles to engineering problems successful, it is important to study the fundamental properties of biological systems. The goal is to arrive with useful...

Proceedings of the Eighth International Conference on the Simulation of Adaptive Behavior, From Animals to Animats 8 (SAB 2004) (2004)

Schaal, S., Ijspeert, A.J., Billard, A., Vijayakumar, S., Hallam, J., Meyer, J.A.

Proceedings - From Animals to Animats: The Eighth International Conference on Simulation of Adaptive Behavior (2004)

Schaal, S., Ijspeert, A.J., Billard, A., Vijayakumar, S., Hallam, J., Meyer, J.A.

Using Evolutionary Methods to Parameterize Neural Models: a Study of the Lamprey Central Pattern Generator (2003)

Hallam, J., Ijspeert, A.J., Duro, R.J., Santos, J., Grana, M.

Evolution of efficient swimming controllers for a simulated lamprey (2002)

Or, H., Hallam, J., Willshaw, D., Ijspeert, A.J.

From Animals to Animats 7 (2002)

Hallam, J., Floreano, D., Hayes, G., Meyer, J.A.

The SAB conference brings together researchers from ethology, psychology, ecology, artificial intelligence, artificial life, robotics, computer science, engineering, and related fields to further...

Evolving swimming controllers for a simulated lamprey with inspiration from Neurobiology (1999)

Ijspeert, A.J., Hallam, J., Willshaw, D.

Evolution of a central pattern generator for the swimming and trotting gaits of the salamander (1998)

Ijspeert, A.J., Hallam, J., Willshaw, D.

From lampreys to salamanders: evolving neural controllers for swimming and walking (1998)

Ijspeert, A.J., Hallam, J., Willshaw, D., Pfeifer, R., Blumberg, B., ...

Evolving swimming controllers for a simulated lamprey with inspiration from Neurobiology (1998)

Ijspeert, A.J., Hallam, J., Willshaw, D.

Artificial Lampreys: Comparing Naturally and Artificially Evolved Swimming Controllers (1997)

Ijspeert, A.J., Hallam, J., Willshaw, D., Husbands, P., Harvey, I.

INVESTIGATING THE BEHAVIOUR OF Q(lambda) (1996)

J. Wyatt, G. Hayes, J. Hallam

this paper we examine the behaviour of one such model-free algorithm, Q() [2]. This algorithm shows promise because it combines the best features of Sutton's TD() algorithm [5] with those of...

Statistical Partial Constraints for 3D Model Matching and Pose Estimation Problems (1993)

M. Waite, M. Orr, R. Fisher, J. Hallam

We explore the potential of variance matrices to represent not just statistical error on object pose estimates but also partially constrained degrees of freedom. Using an iterated extended Kalman...

Really Useful Robots (1989)

U. Nehmzow, J. Hallam, T. Smithers

We propose a self-organizing type of controller for a mobile robot. Rather than decompose the control task into subtasks and implement these (an analytic approach) we propose to use competence...

The optimum distribution of tasks among operators in a multiman-machine system. (1981)

Hallam, J.

Thesis (Ph. D.)--University of Aston in Birmingham, 1981.