Showing papers on "Sensor web published in 1997"

Information Agents for the World Wide Web

Abstract: This paper describes a distributed system of intelligent agents, Jasper, for performing information tasks over the Internet World Wide Web (WWW) on behalf of a community of users. Jasper can summarise and extract keywords from WWW pages and can share information among users with similar interests automatically. Jasper provides agents which can retrieve relevant WWW pages quickly and easily. A Jasper agent holds a profile of its user, based on observing their behaviour and learning more about their interests as the system is used.

Measurement Tools and Modeling Techniques for Evaluating Web Server Performance

Abstract: The past few years have seen a rapid growth in the popularity of the Internet and the World Wide Web. Many companies are deploying Web servers and seeing their usage rates climb rapidly over time. Our research focused on analyzing and evaluating the performance of Internet and intranet Web servers with a goal of creating a Layered Queueing Model to allow capacity planning and performance prediction of next generation server designs. To achieve this we built a tool framework that enables us to collect and analyze empirical data necessary to accomplish our goals.

A digital video library on the World Wide Web

Abstract: We have constructed a video library available on the World Wide Web. The Web provides a useful mechanism for the distribution of video libmry data. The Web and the Intemet also provide interesting architectural challenges to provide useful services to library patrons within the constraints of clients, servers, and the network. Our library is an experimental testbed for algorithms to support two types of access to multimedia material: browsing over program summaries and search over program contents.

Remote monitoring using technologies from the Internet and World Wide Web

Abstract: Recent developments in Internet technologies are changing and enhancing how one processes and exchanges information These developments include software and hardware in support of multimedia applications on the World Wide Web In this paper the authors describe these technologies as they have applied them to remote monitoring and show how they will allow the International Atomic Energy Agency to efficiently review and analyze remote monitoring data for verification of material movements The authors have developed demonstration software that illustrates several safeguards data systems using the resources of the Internet and Web to access and review data This Web demo allows the user to directly observe sensor data, to analyze simulated safeguards data, and to view simulated on-line inventory data Future activities include addressing the technical and security issues associated with using the Web to interface with existing and planned monitoring systems at nuclear facilities Some of these issues are authentication, encryption, transmission of large quantities of data, and data compression

A generic tele-robotic task level interface to an ADepartmentrobot arm utilising the World Wide Web

Abstract: The concept of task level interfaces for human/computer interaction is not new. Much research has been performed in this area, especially in the area of manufacturing assembly problems. However to date, there have been very few commercial systems developed. Tele-operation of robots is also another area of robotics which has been the focus of much research over the past forty years, in areas such as exploration and hazardous environment robots. This project aims to build upon the concepts previously developed in these two areas and to integrate them with the rapidly growing Internet based technologies to develop a generic tele-robotic task level interface to an industrial work cell. The system called WOMBAT (Web Orientated Movement of a roBot using Active Task programming) will be used as a prototype for more advanced research into the area of tele-robotic task level control of both manufacturing and mobile robot devices. The project has shown that generic task level control of a robotic device from a remote client is possible. However, the degree of abstraction available between the physical device being controlled and the task resolution software is still fairly tight. The use of an open distributed architecture has helped in reducing coupling between the two layers but the technology is still not advanced enough to develop a truly de-coupled system which would be commercially viable in the short term.