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《Journal of Computer Research and Development》 2005-08
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A New Object Oriented Probabilistic Graphic Model

Wang Ronggui, Gao Jun, Zhang Yousheng, and Peng Qingsong (College of Computer Science and Information, Hefei University of Technology, Hefei 230009)  
In this paper, a new object oriented probabilistic graphical model, named OPM, and its inference algorithm are proposed to solve the problems of knowledge expression and inference in large Bayesian networks.Firstly, the Bayesian network is segmented into several modules by the name of classes and a kind of object model is used to generate the OPM.OPM can make full use of the conditional independence in the hierarchical structure, which can reduce the complexity of the model construction and knowledge expression effectively.Secondly, an OPM based inference algorithm is proposed via the generalization of the elimination variable inference algorithm to realize the inference mechanism of the OPM.And the parameters in the algorithm can be adjusted according to specific problem to control the computation complexity of the inference process efficiently.And finally, the OPM is used in the automatic detection and location of texts in images to verify its validity.Experimental results show that OPM has not only a good result, but also a fast detection speed.
【Fund】: 国家自然科学基金项目(60175011 60375011);; 安徽省自然科学基金项目(03042207);; 安徽省优秀青年科技基金项目(04042044)
【CateGory Index】: TP18
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【Citations】
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1 ZHANG Yousheng 1 PENG Qingsong 1 WANG Ronggui 1 OU Chunsheng 1 (1 School of Computer and Information, Hefei Technology University, 193Tunxi Road, Hefei ,China, 230009);Method for Detecting and Locating Text Areas in Images Based on Sub-image VCH[J];Editorial Board of Geomatics and Information Science of Wuhan University;2003-03
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【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 Wang Zhenzhou1 Liu Jiaomin1 Li Mu2 Meng Junying3 (1. North China Electric Power University Baoding 071003 China 2. Hebei University of Science and Technology Shijiazhuang 050018 China 3. Shijiazhuang College Shijiazhuang 050035 China);Histogram Algorithm for Switching Arc’s Image Enhancement in Low Voltage Electrical Apparatus[J];Transactions of China Electrotechnical Society;2008-06
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10 Li Xianghong1 Hua Yufei2 Liu Zhan3 Li Wei3(Pre-Key Subject of Food Science,Changsha University of Science & Technology1,Changsha 410114)(State Key Laboratory of Food Science and Technology,School of Food Science and Technology,Jiangnan University2,Wuxi 214122)(Ningbo Product Technology Service Co.,Ltd3,Ningbo 315192);Effect of Molecular Weight of Polysaccharide on Microstruc-tures of Heat Induced Soy Protein Aggregate/Dextran Mixtures[J];Journal of the Chinese Cereals and Oils Association;2010-03
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