When studying model-driven engineering (MDE) in industry, generalization of studies is often hard, as most artifacts are proprietary and confidential in nature. A possible solution would be to study open-source artifa...
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When studying model-driven engineering (MDE) in industry, generalization of studies is often hard, as most artifacts are proprietary and confidential in nature. A possible solution would be to study open-source artifacts. However, open-source artifacts are not necessarily representative for those found in the industry. As the first step towards investigating the viability of open-source MDE artifacts as an alternative to less accessible industrial ones, we use a large open-source dataset and several industrial meta-models to show that the complexity of OCL expressions in open-source and industry is similar.
In this paper,we propose an shape-based interpolation algorithm using window *** aim of this algorithm is to reconstruct the three-dimensional object from a group of two-dimensional sets representing sections of that ...
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ISBN:
(纸本)9781424472369
In this paper,we propose an shape-based interpolation algorithm using window *** aim of this algorithm is to reconstruct the three-dimensional object from a group of two-dimensional sets representing sections of that ***,the window technology and image fusion method are used to get more details what we are interested in of consecutive sets,and then the contour of the image is obtained by using a mathematical morphology morphing approach,for locating the pixels which are corresponding with the interpolation pixels,we employ the relationship between the pixel and the centre of ***,the grey-level of interpolation pixels are the grey-level of the nearest corresponding pixels. Traveling all pixels of the interpolation image,the interpolation image is produced.
Self-organization systems are rapidly emerging as a powerful paradigm for tacking complexity, improving reliability and optimizing performance in several literatures and are widely applied in a number of domains. Obvi...
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ISBN:
(纸本)1891706292
Self-organization systems are rapidly emerging as a powerful paradigm for tacking complexity, improving reliability and optimizing performance in several literatures and are widely applied in a number of domains. Obviously, to develop such complex systems need specified technologies as well as systematic approaches, and they should be developed in an engineering way. We argue software engineering for self-organization systems should consider the specific complexity properties of self-organization and should seek effective approaches to model, design, and dep.oy such systems. This paper aims to survey the state-of-the-art of the researches on software engineering for self-organization systems from theory, technology and tool viewpoints, investigate the potential issues and challenges in current researches, and suggest future research directions.
With increasing complexity of 3D geometric models and growing demand for advanced modeling functionality, significant effort is being devoted to the design of efficient, reliable, and scalable algorithms for digital g...
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ISBN:
(纸本)953184089X
With increasing complexity of 3D geometric models and growing demand for advanced modeling functionality, significant effort is being devoted to the design of efficient, reliable, and scalable algorithms for digital geometry processing. We introduce a multi-scale surface representation that enables sophisticated editing functionality at different approximation levels, using the concept of scale-space. The key issue is the interconnection between successive levels in the hierarchy. We use a fairing operator-a geometric low-pass filter to generate successively smoother approximation levels of a given input surface, and use a decomposition operator to encode each level relative to the next smoother level using normal displacements to ensure intuitive detail preservation. As a result, users can edit the surface at different approximation levels to perform coarse-scale edits on the whole model as well as very localized modifications on the surface detail.
AI planning is the main stream method for automatic semantic web service composition (SWSC) research. However, planning based SWSC method can only return service composition upon user requirement description and lacks...
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The high power consumption of a processor is becoming a critical problem for both battery-powered devices and highperformance computers. Any reductions in the operating frequency of the processor and its supply voltag...
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ISBN:
(纸本)0889864640
The high power consumption of a processor is becoming a critical problem for both battery-powered devices and highperformance computers. Any reductions in the operating frequency of the processor and its supply voltage can lead to significant savings in energy consumption (and heat dissipation) but cause longer execution times. In this paper, the problem of performance-lossless software energy reduction for variable-voltage processors is introduced based on the analysis of voltage scaling characteristic. We discuss compile-time energy reduction techniques which identifies voltage scaling opportunities to achieve energy savings without performance loss. The problem is formulated in terms of mixed integer linear programming formulation, which can sufficiently exploit the difference of voltage scaling characteristics of subtasks. The model can be built by using program profiling results or some necessary parameters, and the heuristic algorithm is presented. Experiment results demonstrate the effectiveness of our strategy by using known benchmark programs on a dedicated processor simulator. Finally the performance of the heuristic algorithm is studied and the impact of the transition overheads is analyzed as well.
In this paper, a new method for non-blind image watermarking presented that is robust against affine transformation and ordinary image manipulation. The proposed method presents a watermarking scheme based on redundan...
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According to some discoveries and analysis results of network measurement for network traffic in recent years [1, 2], this paper has proposed three propositions about distributions of network traffic. To explain these...
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ISBN:
(纸本)1565553128
According to some discoveries and analysis results of network measurement for network traffic in recent years [1, 2], this paper has proposed three propositions about distributions of network traffic. To explain these propositions, the shaping effect for network traffic the Internet structures have is pointed out, and the novel concept of shaping operator and a doublemode transition model between self-similarity distribution and Poisson distribution is put forward. Finally, the validity of the shaping function and three propositions are verified by a lot of simulation experiments on NS2.
This paper proposes a design and implementation of a highly efficient feature selection based on Minkowski's mathematical similarity for machine learning. Moreover, the development of the Minkowski feature selecti...
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Overfitting and the presence of noisy labels are significant challenges in the training of machine learning models, particularly in complex datasets. This paper introduces a novel checkpointing method designed to miti...
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