The research in agent-oriented software development methods is very active in recent years. Academia and industry have already made up more than 20 kinds of agent-oriented analysis and design methods, some are based on the thought of organizational and sociological, and some are based on the thought of object. These methods have their own focus
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In order to search or extract information in a special category from large data source , so text automatic categorization has become a hot subject of research. KNN is an important method of text automatic Classification, and it can deal with large data sets with more stability. Based on the comprehensive overview of Chinese Text
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Recently Retinex has attract more and more attention. As an image enhancement method, the aim of Retinex is to resume the lost image detail caused by the limitation of acquisition equipment. Retinex method is theoretically based on the color constancy of human visual system. The basic strategy is simulating the process of human vision to
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Pattern matching is a fundamental and important issue in computer science. It has been widely used in many fields, such as information retrieval, data stream mining, network intrusion detection, and biological computing, along with the rapid development of information technology. In recent years, pattern matching with wildcard constraints as a new area has increasingly attracted
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Nuclear power together with hydropower and thermal power, are the three pillars of Electricity Industry. There are several advantages of nuclear power , including cleanness, well developed techniques and supply capacity. As early as in 2004, Chinese government has made a plan of nuclear power development before 2020–increase nuclear power generating capacity by 6% of
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With the rapid development of information technology, an explosive amount of data is brought out in the fields like banking, financial services, e-commerce, bioinformatics and network security. These practical data that mining tasks face are often of high-dimension, redundant features, as well as noises, which may lead to lower precision and cost more time, especially
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Chinese word segmentation is the first step in natural language processing. In practice, Chinese word segmentation subject to many constraints, unknown word is one of the important factors impact the accuracy. Unknown words mainly contains person’s name, place name, organization name and other named entity. Therefore, integrate named entity recognition into the process of Chinese
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Because of the characteristics of traditional latitude/longitude graticule, for instance, spatial inequality, uncertain adjacency relations, etc., the disadvantages, as high-redundancy and inadequate-precision, is shown clearly while being used as the basic data structure for the visualization of global topographic data. Therefore, a large number of discrete global grid systems have been constructed. The triangle grid
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Urban environment modeling, which based on virtual reality technology, is focused on in the city planning, protection of cultural heritage, and visual entertainment, these realms provide urban environment modeling technology with a multitude of application requirements, which provide an impetus for development. To provide a summary of urban environment modeling technology’s current state, we have
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With the rapid development of Internet and information technology, 3D models have become the fourth multimedia data types following sounds, images and video. The technology of 3D model retrieval became the research focus in multimedia information retrieval. The research on 3D model retrieval exist deficiencies that 3D model descriptive method are not unified and 3D
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