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Collaborative design is a new method to meet the requirement of increasing competition in market, which can deal with different resource and various interests to attain a good result. Distributed knowledge in collaborative design is an important problem to complete design. A knowledge management system (KAM) is developed to share knowledge of various sections to meet the need of knowledge interaction...
The goal of adding content-based 3d model retrieval to semantic web is to develop a rich set of 3d model semantic representation to enable both humans and machines to generate and understand model descriptions and processing which can be used to enable fast efficient retrieval from model collections. The purpose of Ontology for Content-based 3d Model retrieval is intended to describe model information...
A new aggregation operator is proposed in this paper, which is defined based on mapping, whose input and output variables can be assigned by several different types of score terms, such as numbers, intervals, linguistic values or symbolic values. First, the definition of the aggregation operator is introduced, followed by the definitions of the layered relationship among the evaluation items with...
Training systems based on virtual reality are used in several areas. In these systems the user is immersed into a virtual world to have realistic training through realistic interactions. In such training is important to know the quality of user??s training. Several approaches to perform assessment in training simulators based on virtual reality have been proposed. However, they did not present a satisfactory...
Jacquard image inpainting is an interesting new research topic in pattern preprocessing for jacquard CAD. Phase field model has been well acknowledged as an important method for image inpainting. This paper discussed the problem of jacquard image inpainting by approaching the phase field paradigm from a numerical approximation perspective. The basic idea is to represent the damaged pattern of interest...
This paper presents a new functional network which is based on rational function. A learning algorithm of rational functional network is proposed, the learning of functional network parameters use Lagrange multipliers by means of auxiliary function and solving a system of linear equations obtain parameters. An experiment in approximating rational functions is given. The results show that the rational...
Part-building orientation (PBO) and scanning direction of path planning (SDPP) are two tasks of process plan in rapid prototyping technology (RPT). Through investigating the geometric issues of STL model and process planning of RPT. This paper establishes optimizing model based on the considerations of staircase effect, support area and production time. And then, through analyzing the hatching characteristic...
An open and extensible framework of mass customization systems is needed for supporting the seamless integration of customization system, CAX tools and legacy systems. The emergence of service-oriented architecture (SOA) has brought about a loosely coupled computing environment that enables flexible integration and reuse of heterogeneous systems. In this paper, an SOA-based architecture of product...
This paper proposes an image mosaic algorithm based on the similar curve of two images. The algorithm determines the matched positions of two images by finding out the feature points of two close images. This algorithm can automatically piece two images shot horizontally and looply together. At last, this proposed image mosaic algorithm is implemented using MATLAB. The experimental results show the...
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