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基于模糊混合预测的静态图像无损压缩
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作者 吴颖谦 方涛 施鹏飞 《上海交通大学学报》 EI CAS CSCD 北大核心 2004年第4期574-577,共4页
提出了一种基于自适应模糊混合预测的静态图像无损压缩方法.在预测准备阶段,根据一个预定的阈值计算出一组自适应线性预测器,用完全自组织简化自适应共振神经网络对得到的预测器进行训练;在预测图像过程中,训练预测器在模糊逻辑的意义... 提出了一种基于自适应模糊混合预测的静态图像无损压缩方法.在预测准备阶段,根据一个预定的阈值计算出一组自适应线性预测器,用完全自组织简化自适应共振神经网络对得到的预测器进行训练;在预测图像过程中,训练预测器在模糊逻辑的意义上互相结合起来实现最终预测过程;在误差编码阶段,该方法使用了基于上下文的条件算术编码.实验表明,该方法的诸多特点使得它能在计算复杂性和预测效率间达到平衡,表现出优良的压缩性能. 展开更多
关键词 无损图像压缩 自适应预测 模糊混合 上下文条件算术编码
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第一讲 FORTRAN语言概貌
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作者 吕志 《数理统计与管理》 1984年第2期45-49,共5页
关键词 FORTRAN语言 赋值语句 逻辑条件语句 语句标号 循环语句 专用字符 关系运算符 循环参数 算术条件 转语
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An Extended Ontology Model and Ontology Checking Based on Description Logics 被引量:8
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作者 王洪伟 蒋馥 吴家春 《Journal of Shanghai Jiaotong university(Science)》 EI 2004年第1期34-41,共8页
Ontology is defined as an explicit specification of a conceptualization. In this paper, an extended ontology model was constructed using description logics, which is a 5-tuples including term set, individual set, term... Ontology is defined as an explicit specification of a conceptualization. In this paper, an extended ontology model was constructed using description logics, which is a 5-tuples including term set, individual set, term definition set, instantiation assertion set and term restriction set. Based on the extended model, the issue on ontology checking was studied with the conclusion that the four kinds of term checking, including term satisfiability checking, term subsumption checking, term equivalence checking and term disjointness checking, can be reduced to the satisfiability checking, and satisfiability checking can be transformed into instantiation consistence checking. 展开更多
关键词 ONTOLOGY description logics ontology checking term checking instantiation checking
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A New Approach for Lossless Image Compression Based on Fuzzy Adaptive Prediction
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作者 吴颖谦 Fang +2 位作者 Tao Shi Pengfei 《High Technology Letters》 EI CAS 2004年第2期38-41,共4页
This paper proposes a novel approach for image lossless compression based on fuzzy logic and adaptive prediction. By a flexible strategy, the method can acquire a set of original predictors describing the more detail ... This paper proposes a novel approach for image lossless compression based on fuzzy logic and adaptive prediction. By a flexible strategy, the method can acquire a set of original predictors describing the more detail characteristic. Using a neural network, the proposed method can more efficiently organize the training of original predictors and implement adaptive prediction in fuzzy style. In entropy coding phase, the context-based conditional adaptive arithmetic encoding is adopted. The experiments demonstrate the characteristics make the approach achieve good tradeoff between computational complexity and efficiency of prediction and good performance for lossless compression. 展开更多
关键词 自适应回归预测 模糊逻辑 FOSART神经网络 内容基条件算术编码 无损图像压缩
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A Study on Simple Prediction Method of Heat Load: A Use of Linear Approximation Indicial Response in Basements
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作者 Kyung-Soon Park Hiroaki Kitano Hisaya Nagai 《Journal of Civil Engineering and Architecture》 2013年第4期379-387,共9页
This study was conducted to establish a predictable method for a heat load of an underground structure with sufficient accuracy. As the first step, our previous paper reported the measurement results of field experime... This study was conducted to establish a predictable method for a heat load of an underground structure with sufficient accuracy. As the first step, our previous paper reported the measurement results of field experiments on an underground experimental basement under internal heat generation conditions. Also, it presented the results of numerical analyses on the heat and moisture behavior and the influence of internal heat generation of the experimental basement and ground. However, it is practically impossible to utilize the model of simultaneous heat and moisture transfer at the design phase because the prediction by the model of simultaneous heat and moisture transfer requires a long calculation time. In this paper, the authors present the simple load calculation technique, using a linearized approximation indicial response of the inner surface heat flux in a basement to outdoor air temperature change. In addition, the approximation indicial responses for each part of the single-walled concrete drawn using this technique are arranged. The heat load calculation example of application to the basement of the optional size by this technique is shown. 展开更多
关键词 Underground structure simultaneous heat and moisture transfer linearized prediction method indicial response.
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Priority-sequence of mineral resources' development and utilization based on grey relational analysis method 被引量:3
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作者 Wang Ying Zhang Chang Jiang Gaopeng 《International Journal of Mining Science and Technology》 SCIE EI CSCD 2016年第3期395-400,共6页
Generally, the sequence decision of the development and utilization of Chinese mineral resources is based on national and provincial overall plan of the mineral resources. Such plan usually cannot reflect the relative... Generally, the sequence decision of the development and utilization of Chinese mineral resources is based on national and provincial overall plan of the mineral resources. Such plan usually cannot reflect the relative size of the suitability of the development and utilization of mineral resources. To solve the problem, the paper has selected the gift condition, the market condition, the technological condition,socio-economic condition and environmental condition as the starting-points to analyze the influential factors of the priority-sequence of mineral resources' development and utilization. The above 5 conditions are further specified into 9 evaluative indicators to establish an evaluation indicator system. At last,we propose a decision model of the priority sequence based on grey relational analysis method, and figure out the observation objects by the suitability index of development. Finally, the mineral resources of a certain province in China were analyzed as an example. The calculation results indicate that silver(2.0057), coal(1.9955), zinc(1.9442), cement limestone(1.9077), solvent limestone(1.5624) and other minerals in the province are suitable for development and utilization. 展开更多
关键词 Mineral resources Development and utilization Priority-sequence Grey relational analysis method
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Enzymatic Activity of Escherichia Coil Lactate Dehydrogenase and Cytochrome c Oxidase
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作者 Yury Shamis Alex Taube +2 位作者 Rodney Croft Russell J. Crawford Elena P. Ivanova 《Journal of Physical Science and Application》 2012年第6期143-151,共9页
The catalytic activity of two common bacterial enzymes, lactate dehydrogenase (LDH) and cytochrome c oxidase (COX) from Escherichia coli was examined following bacterial exposure to microwave (MW) radiation unde... The catalytic activity of two common bacterial enzymes, lactate dehydrogenase (LDH) and cytochrome c oxidase (COX) from Escherichia coli was examined following bacterial exposure to microwave (MW) radiation under well-defined experimental conditions. The experiments were conducted in a specialized microwave processing apparatus, with an exposure frequency of 18 GHz, and a temperature profile that was restricted to below 40℃ to avoid thermal degradation of the bacteria. The absorbed power was calculated to be 1,500 kW/m3 and the electric field was determined to be 300 Wm. Both values were theoretically confirmed using Computer Simulation Technology (CST) Microwave Studio 3D Electromagnetic Stimulation Software. Results showed that the activity of both enzymes was increased following MW radiation compared to negative controls and thermally treated samples subjected to similar temperature profiles. It is suggested that the increase in COX and LDH enzyme activity could not be explained by conventional heating alone, but was rather a result of micro-thermal effects that incorporated 'undetectable' thermal mechanisms. 展开更多
关键词 NON-THERMAL microwave radiation specific microwave effects enzyme kinetics cytochrome c oxidase LACTATEDEHYDROGENASE instantaneous temperature.
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SOME RATIONALITY CONDITIONS OF JOINT EFFICIENT MAPPING IN GROUP MULTI-OBJECTIVE PROGRAMMING
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作者 Jing LI Yuda HU 《Journal of Systems Science & Complexity》 SCIE EI CSCD 2007年第4期585-591,共7页
The joint efficient ordering method is a fundamental method of ordering alternatives in group multi-objective programming problems. In this paper, the rational properties of the joint efficient mapping corresponding t... The joint efficient ordering method is a fundamental method of ordering alternatives in group multi-objective programming problems. In this paper, the rational properties of the joint efficient mapping corresponding to the joint efficient ordering method are studied, and some necessary conditions of this mapping are proven. 展开更多
关键词 group multi-objective programming joint efficient mapping joint efficient ordering method rationality condition.
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