Requirements that involve the usability of systems can be properties of interactions rather than systems alone. We demonstrate this proposition by means of four examples and then suggest how a notation like CSP may be...
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Network systems consist of groups of objects which work together to fulfil common management functions. The required functionality of management systems depend on the management policy which applies to it, and governs...
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Network systems consist of groups of objects which work together to fulfil common management functions. The required functionality of management systems depend on the management policy which applies to it, and governs its structure and behaviour. Management policy can be implemented as an active relationship between objects forming the management system where an active relationship includes a relationship and behaviour. Distribution transparencies hide the effect of distribution in distributed systems, and their support simplifies the implementation of distributed systems. This paper identifies various distribution transparencies that are considered valuable in distributed management systems, and shows how these transparencies can be implemented using Traders and policy relationships between objects.< >
作者：
MALFAIT, MROOSE, DVANDERMEULEN, DK.U.Leuven
Department of Computer Science Celestijnenlaan 200A Heverlee 3001 Belgium K.U.Leuven
Interdisciplinary Research Unit for Radiological Imaging (ESAT + Radiology) Kard. Mercierlaan 94 Heverlee 3001 Belgium
We examine methods to assess the convergence of Markov chain Monte Carlo (MCMC) algorithms and to accelerate their execution via parallel computing. We propose a convergence measure based on the deviations between sim...
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The bounds for the expected values of order statistics and their linear functions are obtained under the assumption that the exact value of the expectation of extreme order statistic is known for two smaller sample si...
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Reverse engineering of concurrent real-time pro-grams with timing constraints is a particularly chal-lenging research area, because the functional behaviour of a program, and the non-functional timing require-ments, a...
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Requirements that involve the usability of systems can be properties of interactions rather than systems alone. This proposition is demonstrated by means of four examples. The authors suggest that a notation like CSP ...
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Requirements that involve the usability of systems can be properties of interactions rather than systems alone. This proposition is demonstrated by means of four examples. The authors suggest that a notation like CSP (communicating sequential processes) may be used to provide a framework for considering different modeling approaches. Interaction requirements that relate to multiwindowed systems, walk up and use systems, and dynamic systems such as power stations are considered. It is shown how models provide different representations to which advice from the different disciplines of human computer interaction may be applied.< >
The phenomenon of overtraining in backpropagation neural networks is discussed. The relationships between network size, training set size and generalization capabilities are examined. An extension to an existing algor...
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The phenomenon of overtraining in backpropagation neural networks is discussed. The relationships between network size, training set size and generalization capabilities are examined. An extension to an existing algorithm of backpropagation is described. The extended algorithm provides a new energy function and its advantages, such as improved plasticity and performance, along with its dynamic properties, are explained. The algorithm is applied to some common problems and simulation results are presented and discussed.< >
Reverse engineering of concurrent real-time programs with timing constraints is a particularly challenging research area, because the functional behaviour of a program, and the non-functional timing requirements, are ...
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Reverse engineering of concurrent real-time programs with timing constraints is a particularly challenging research area, because the functional behaviour of a program, and the non-functional timing requirements, are implicit and can be very difficult to discover. The authors present a significant advance in this area, which is achieved by modelling real-time concurrent programs in the wide spectrum language WSL. They show how a sequential program with interrupts can be modelled in WSL, and the method is then extended to model more general concurrent programs. They show how a program modelled in this way may subsequently be 'inverse engineered' by the use of formal program transformations, to discover a specification for the program.< >
This paper addresses the problem of visual assessment of clustering tendency in p-dimensional data using two extensions of Kohonen's self-organizing feature map (SOFM). We show that SOFM cell displays generally do...
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This paper addresses the problem of visual assessment of clustering tendency in p-dimensional data using two extensions of Kohonen's self-organizing feature map (SOFM). We show that SOFM cell displays generally do not produce visual evidence that leads to good guesses about cluster substructure or data density even for 2-dimensional data. The two proposed extensions of SOFM improve the quality of displays and enable us to make better guesses about the existence of substructure in data.
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