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The Open Grid Service Infrastructure (OGSI) has been designed to facilitate the creation of multiple, interoperable Grid Service hosting environments, but to date only one fully OGSI-compliant hosting environment exists, Globus Toolkit version 3 (GT3). This paper describes the design and implementation of OGSI.NET, which is the second, independent hosting(More)
The impact of Web service integration on grid performance p. 14 Supporting application-tailored grid file system sessions with WSRF-based services p. 24 Building self-adapting services using service-specific knowledge p. 34 Increasing application performance in virtual environments through run-time inference and adaptation p. 47 Enabling self-management of(More)
Grid computing involves networks of heterogeneous resources working in collaboration to solve problems that cannot be addressed by the resources of any one organization. A pervasive problem for Grid users is how best to discover the resources they need given dynamic Grid environments. UDDI, the Universal Description, Discovery and Integration framework, is(More)
Today's robotics applications require complex, real-time, high-bandwidth sensor systems. Although many s u c h systems have been developed, integrating them into an autonomous agent architecture remains an area of active research. We have integrated an active stereo vision system with an autonomous agent architecture using a system of perceptual memory.(More)
The goal of this project is to develop a pedestrian mobility aid for the elderly. In order for this type of assistive technology to be useful and accepted by its intended user community, it must enhance the abilities of users, not replace them. This leads to an agent architecture in which the agent must operate without hindering the user's ability to take(More)
This paper presents a characterization study of the HOKUYO PBS-03JN Infrared range-finder and compares it to the characterization of the SICK LMS-200 laser range-finder for use in indoor 2-D mapping. Many parameters that could affect the performance of the sensor including warm-up time, divergence of the detection beam, usable detection range in the(More)