This paper presents a study of the efficacy of comparative controller design methods that aim to produce generalised problem solving behaviours. In this case study, the goal was to use neuro-evolution to evolve generalised maze solving behaviours. That is, evolved robot controllers that solve a broad range of mazes. To address this goal, this study compares objective, non-objective and hybrid a...

This paper shows that the kernel fragment of Esterel corresponding to combinational circuits admits a natural game–theoretic interpretation. Technically, combinational Esterel programs are mapped into finite two–player games in such a way that the standard must– and cannot–analysis of signal statuses is reflected in the computation of winning strategies. The novel game–theoretic approach comple...

Mazes have intrigued the human mind for thousands of years, and have been used to measure mental abilities of laboratory animals. In recent years mazes have been used to measure the artificial intelligence of robots by examining their ability to traverse mazes using maze exploration and solution algorithms. We use a simulation of a multi-agent system and show that it is beneficial to use a grou...

We develop an algorithm to fold a square of paper into an orthogonal maze of ridges protruding out of a square base. More precisely, given an orthogonal graph drawn on a square, we fold a constant-factor larger square of paper into the square with the orthogonal graph extruded orthogonally to a specified (uniform) height. The zero-thickness ridges could form a path like the Hilbert curve, a maz...

The basic idea of the method [1] is best demonstrated with a simple problem that already is given in terms of paths. Fig. 1 depicts how we can solve a typical maze problem. The maze is equipped with mirrors so that light entering the maze simultaneously runs through all possible paths. Interference will be detected if the optical path lengths (OPD) of the two interferometer arms are equal. Ther...

Brain injury often impairs a person’s ability to remember. To find new drugs that improve memory after brain injury, scientist must rely on experiments in animals such as rats. But how do you test the rats? One way is use pool of colored water, called Morris water maze. In this maze, rats have “remember” where go get out water. The more rat’s has improved, quicker it finds its (rats not like be...

This paper describes the design and implementation of an FPGA-based multilayer maze routing accelerator. The accelerator is implemented as an array of small processing elements that corresponds to the horizontal structure of the routing grid. Mulitilayer routing is efficiently implemented by time-multiplexing multiple layers over the twodimensional grid. Prototype accelerators supporiting 8 X 8...

Damage to the hippocampus typically produces temporally graded retrograde amnesia, whereby memories acquired recently are impaired more than memories acquired remotely. This phenomenon has been demonstrated repeatedly in a variety of species and tasks. It has also figured prominently in theoretical treatments of memory and hippocampal function. Yet temporally graded retrograde amnesia has not b...

Impairment of hippocampal function precedes frontal and parietal cortex impairment in human Alzheimer's disease (AD). Neurotrophins are critical for behavioral performance and neuronal survival in AD. We used complex and radial mazes to assess spatial orientation and learning in wild-type and B6-Tg(ThylAPP)23Sdz (APP23) animals, a transgenic mouse model of AD. We also assessed brain content of ...