The influence of visual salience on natural language descriptions is examined. Particular focus was given on the information flow from the analysis of visual data to language generation and how visual information can ...
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The influence of visual salience on natural language descriptions is examined. Particular focus was given on the information flow from the analysis of visual data to language generation and how visual information can be used for grounding descriptions in the environment.
The design of a case-based expert system that estimates the cost of refurbishing houses is described. The system is a new AI technique called Case-Based Reasoning (CBR). In particular, this article investigates the ap...
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The design of a case-based expert system that estimates the cost of refurbishing houses is described. The system is a new AI technique called Case-Based Reasoning (CBR). In particular, this article investigates the applicability of CBR to the estimation of refurbishment costs and shows that whilst CBR is effective, it is not entirely without pain.
Congestion is a problem in many urban areas, and traffic incidents often cause exacerbate congestion. A traffic incident could be an accidents, a broken down vehicle or a slow moving lorry. If such incidents could be ...
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Congestion is a problem in many urban areas, and traffic incidents often cause exacerbate congestion. A traffic incident could be an accidents, a broken down vehicle or a slow moving lorry. If such incidents could be detected, action could be taken quickly to stop the congestion spreading around the network. Automatic traffic controlsystems help to stop this congestion and try to optimize traffic signals to minimize delays to drivers. Although such systems work well in normal traffic flow as a network becomes congested, the ability to minimize delays is reduced. To improve this situation, three system have been developed: ASTRID, INGRID, and MONACO. These three systems are described in detail.
Gas is transported through a large network of pipes which are operated over a wide range of pressures. Within these networks are many elements which ensure that all the necessary working conditions are met. An importa...
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Gas is transported through a large network of pipes which are operated over a wide range of pressures. Within these networks are many elements which ensure that all the necessary working conditions are met. An important role is played by valves which can perform a variety of functions. A valve and actuator arrangement, which is used to throttle gas from streams found on offshore platforms, is considered. A diagnostic system which will detect and isolate specific faults is developed. British Gas supplied data of step tests from four different valves but additional data was required for the diagnostic procedure. A mathematical model of the system was derived using mathematical relationships and established laws which were interpreted in Matlab/Simulink.
Manufacturing systems Engineering courses are specifically designed to veer away from the traditional engineering approach of teaching separate engineering science subjects to a more integrated teaching approach. Robo...
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Manufacturing systems Engineering courses are specifically designed to veer away from the traditional engineering approach of teaching separate engineering science subjects to a more integrated teaching approach. Robots are now being used as the integrating theme for teaching both the supporting and essential subjects. By subdividing the robot into its essential subsystems, necessary mechanical and electrical engineering principles of manufacturing systems can be adequately covered. Recognition of the subsystems enables the desired subject areas to be identified and allocated to an appropriate area for inclusion into the lecture program.
This paper is about some of the problems seen with the integration of signaling for support of Integrated Services Internet over Broadband ISDN. in it we contrast the mechanisms employed by the Internet resource reser...
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This paper is about some of the problems seen with the integration of signaling for support of Integrated Services Internet over Broadband ISDN. in it we contrast the mechanisms employed by the Internet resource reservation protocol, RSVP with those of B-ISDN and Q.2931. We do not propose any solution, but try to give an indication of the direction that signaling for broadband networks must evolve to support more effectively the higher level services that most users will be employing.
In trying to provide useful software engineering tools that utilize Computer Supported Cooperative Working it is necessary to examine the use of cognitive artefacts. This paper looks at using artefacts to support a pr...
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In trying to provide useful software engineering tools that utilize Computer Supported Cooperative Working it is necessary to examine the use of cognitive artefacts. This paper looks at using artefacts to support a prototype Soft systems Analysis tool based upon the work of Checkland (1981). This methodology is concerned with systems definition and relies heavily on people-people interaction. The need for a cognitive artefact arises both from the co-operative working environment and the iterative nature of the technique.
The performance of a time-limited model based diagnostic systems is investigated. Real time issues, such as progressive reasoning which divides the system to be examined into different levels of abstraction and any-ti...
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The performance of a time-limited model based diagnostic systems is investigated. Real time issues, such as progressive reasoning which divides the system to be examined into different levels of abstraction and any-time algorithms which schedule the tasks to be performed, are addressed. A hierarchical behavioral model is used to represent the system to be diagnosed. A bi-criterion scheduler algorithm is proposed to navigate through the hierarchical tree model in order to obtain the best diagnosis within the given deadlines.
During recent years, in the field of real-time instrumentation and process control, there has been a trend to keep away from centralised control system. The specification requirements for designing a complete distribu...
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During recent years, in the field of real-time instrumentation and process control, there has been a trend to keep away from centralised control system. The specification requirements for designing a complete distributed system in the instrumentation and process control environment are not well known. This paper consists of three parts. In the first part we present the specification requirements in order to design the distributed systems. Distributed control by using fieldbus technology is only the first step to the application of intelligence in the field devices. Hence in the second part we review the fieldbus technology, state the current status of the international fieldbus standards and differentiate conventional LANs (Local Area Networks) from the fieldbus technology as both are used in the distributed systems. Then some of the standard fieldbuses with their characteristics are described. In the distributed systems optimisation of response time plays an important role at the time of designing the control architecture. In the third part we propose channel division multiplexing method in order to optimise the response time. Finally we explain what the distributed systems are really demanding from the fieldbus technology.
Research conducted by the Defence Research Agency and Cambridge Consultants on real time knowledge based methods and techniques is summarized. The development of a large scale prototype that demonstrates the effective...
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Research conducted by the Defence Research Agency and Cambridge Consultants on real time knowledge based methods and techniques is summarized. The development of a large scale prototype that demonstrates the effectiveness of this research is also presented. It concerns a real time decision support system to enhance the performance of helicopter aircrew engaged in a naval mission to search and identify contacts in coastal water.
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