A nonparametric clustering technique incorporating the concept of similarity based on sharing near neighbors is presented. In addition to being an essentially paraliel approach, computational elegance method such that scheme applicable a wide class practical problems involving large sample size and high dimensionality. No attempt made show how priori problem knowledge can be introduced into procedure.

In recent times a great deal of interest has been shown, amongst the computer vision and robotics research community, in acquisition range data for supporting scene analysis leading to remote (noncontact) determination configurations space filling extents three-dimensional object assemblages. This paper surveys variety approaches generalized finding presents perspective on their applicability shortcomings context studies.

We report the fabrication and characterization of rib chalcogenide waveguides produced by dry etching with CF4 O2. The high index contrast (Deltan ~1) show a minimum propagation loss 0.25 dB/cm. refractive nonlinearity 100 times silica in As2S3 allowed observation pi phase shift due to self-phase modulation an 8 ps duration 1573 nm pulse 5 cm long waveguide.

The requirements of three-dimensional scene analysis in support vision driven robotic manipulation are such that direct range finding capabilities can greatly reduce the computational burden (time and complexity) for reliable determination placement spatial extent objects scene. This paper describes a laser time-of-flight scanner capable acquiring reasonable rangepic 64 × resolution 4 s. However, at current state development, 100 samples/point required to achieve accuracy approxi-mately ±¿...

A great number of techniques have been applied to the general problem adaptive control. What began as a study engineering control problems involving dynamics, system and measurement noise, monitoring, transduction, on-line instrumentation seems moved towards learning theory methodology research that uses refined plant/environment model vehicle demonstration. An attempt is made bring together, order, briefly discuss many contributions in this field, bridging era earlier practice more recent...

A probabilistic automaton based on competing evolutionary search processes is considered as an on-line real-time adaptive controller for complex plants with multimodal performance index structures that are modified under measurable but uncontrollable random environmental variations. The scheme described includes mechanisms of storage and retrieval to take advantage control experience gained prior any current situation.

A probabilistic automaton with pattern recognition supervision is considered as an on-line real-time adaptive controller for a complex plant multimodal performance-index structure and subjected to environment which randomly fluctuates in time. This be partially measurable but entirely uncontrollable. The discussed capable not only of learning the optimum control parameters any given environmental situation also acting internal teacher formation associations between state situation, so that...

Odour localisation in an enclosed area is difficult due to the formation of sectors circulating airflow. Well-defined plumes do not exist, and reactive plume following may be possible. has been partially achieved this environment by using knowledge airflow, a search that relies on chemical sensing reasoning. However results are specific, with odour source only restricted broad area. This paper presents solution problem introducing second stage visual sensing. It therefore comprises bi-modal,...

This article presents our attempts to direct an autonomous robot using efficient and universal topological instructions, which can be incrementally interpreted by a moving that does not have its own map initially. Many real-world experiments are included, featuring exploration mapping. Surprisingly, we conclude show for this type of navigation, abilities in object recognition more important than better The describes GVD-derived topology spatial affordances, junctions defined the physical...

The robust control of a mobile robot in rough terrain environment is challenging endeavour, since any reliance on favourable surface or environmental conditions will inevitably lead to task failure. This paper presents the preliminary development unified navigation system used nonholonomic an priori unknown outdoor domain. Accurate, high-resolution data was gathered from scanning laser rangefinder (ladar), which constitutes robot's exteroceptive perception system. Using this data, 3D...

Worldwide competitive pressure is driving successful semiconductor companies toward ever improving performance-price ratios. In addition, this accelerating the rate of improvement. Using yield models can accelerate at which processing experience reduces manufacturing costs. This paper reviews learning curves, outlines an improvement strategy using models, presents enhancements, and illustrates application to learning. Detailed, validated simulate effects process equipment plans. Yield used...

This paper describes the integration of sensory data, path planning methodology and hydraulic motor power to create an autonomous, heavy duty, outdoor robotic tracked vehicle capable hauling loads in working environments which can be initially unknown time-varying. Potential applications include agricultural, forestry surface mining operations as well firefighting search rescue missions. Progress date is reported along with development plans for near future.

This paper describes an approach for solving a visibility-based covert path planning problem. It is extension to our research on robotics which aims create robots with the ability achieve different navigation missions. A promising method presented that allows mobile robot in complex, initially unknown environment discover nominated destination minimum exposure sentries' at known locations within same environment. The are initially, suspected, or discovered during navigation. estimates cost...

This paper demonstrates how a robot can perform global localisation using panoramic mirror in conjunction with rich 3D model of the environment and particle filter for localisation. The is created Riegl Z420i laser range scans taken at various positions registered together. An appearance-based map from this by sampling it poses. For feature extraction we use Haar-wavelets as scene signature. In our experiments, able to localise on average within 1 metre true position 5 degrees orientation,...

This paper is an extension to a previous work on our research in path planning: Covert Robotics (Amrzouqi and Jarvis, 2003). In this paper, new application introduced where the aim allow mobile robot known environment escape observation of moving sentries. Whether initial sentries' locations are or can be predicted, hiding strategy insures overall covertness for longest possible time by planning covert appropriate position environment. The Time-to-Exposure algorithm, that here, approach...

An interactive computer environment is one which attempts to facilitate the interplay between man and machine in pursuit of a goal defined by man. Presumably, be effective, this should allow calculating speed, precision, structured logical/iterative skill serve conceptual, intuitive, highly associative, contexturally sensitive attributes human mental function solution problems. Too often match obtuse, goals vague, result frustration. Much emphasis ought placed on priori specific problem...