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XIDM: A Common Data Model Based on XML

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wuhan university Journal of Natural Sciences 2001年第Z1期6卷 432-437页

作者： Li Bing 1, Lu Zheng ding 1, Peng De chun 2 1.College of Computer Science & Technology,Huazhong university of Science & Technology,wuhan 430074, china 2.state key laboratory of software engineering, wuhan university,wuhan 430072, china College of Computer Science & Technology Huazhong University of Science & Technology Wuhan China state key laboratory of software engineering Wuhan University Wuhan China

Integration between file systems and multidatabase systems is a necessary approach to support data sharing from distributed and heterogeneous data sources. We first analyses problems about data integration between file systems and multidatabase systems. Then, A common data model named XIDM(XML\|based Integrating Dada Model), which is XML oriented, is presented. XIDM bases on a series of XML standards, especially XML Schema, and can well describe semistructured data. So XIDM is powerfully practicable and multipurpose.

关键词： file systems multidatabase systems data integration XML

Restructuring C Programs into C++ Programs

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wuhan university Journal of Natural Sciences 2001年第Z1期6卷 256-262页

作者： Zhang Ying 1,Zhou Yu ming 1,Xu Bao wen 1,2 , Liu Yuan 1 1.Department of Computer Science and engineering, Southeast university, Nanjing 210096, china 2.state key laboratory of software engineering, wuhan university, wuhan 430072, china Department of Computer Science and engineering Southeast University Nanjing 210096 China

There exist a lot of legacy systems written in C language, which are difficult to understand, modify, maintain and reuse. How to improve the quality of these non object oriented systems has become an important issue in software engineering area. A possible way is to transform these procedural systems into semantically equivalent object oriented systems implemented in C++ language, which provides object oriented features such as data abstraction, inheritance and polymorphism, makes software system more comprehensible, maintainable and reusable. A detailed discussion on polymorphism analysis, object discovery and possible inheritance relation extraction on C to C++ conversion problem is made, which is also suitable to the transformation on legacy systems implemented in other procedural languages to equivalent object oriented systems.

关键词： object extraction cohesion coupling inheritance

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基于对象的多媒体合著系统代理模型

武汉大学学报（理学版） 2001年第3期47卷 299-304页

作者：何炎祥李旭晖宋强杜卓敏武汉大学计算机学院

根据多媒体合著系统的特点 ,建立了对象模型原型 OCA,并在此基础上建立多媒体合著系统代理模型 ***模型采用了一种粒度较粗的以作品内容为中心的组织方式 ,由各代理协同合作完成多媒体系统的合著工作 .

关键词：多媒体合著系统代理模型对象模型 OCA MCAS 协同代理组织方式多媒体软件

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一种基于分形维数的自适应语音信息隐藏算法

武汉大学学报（理学版） 2003年第3期49卷 313-317页

作者：陈力谢玉琼武汉大学数学与统计学院武汉大学非线性中心湖北武汉430072

为了提高秘密数据传输的可靠性和安全性 ,本文以语音段分形维数计算为基础 ,提出一种检测时不需要原始语音信号的自适应语音信息隐藏方法 .语音段的秘密信息嵌入位置和数量由人类听觉感知特性和分形维数确定 ,在保证不可察觉性的前提下 ... 详细信息

为了提高秘密数据传输的可靠性和安全性 ,本文以语音段分形维数计算为基础 ,提出一种检测时不需要原始语音信号的自适应语音信息隐藏方法 .语音段的秘密信息嵌入位置和数量由人类听觉感知特性和分形维数确定 ,在保证不可察觉性的前提下 ,兼顾了鲁棒性和隐藏量的要求 .仿真实验表明该算法具有较好的信息隐藏性能 .

关键词：自适应语音信息隐藏算法分形维数数据传输语音段语音信号处理

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一种具有噪声估计能力的图像恢复正则化方法

武汉大学学报（理学版） 2002年第3期48卷 311-314页

作者：曾三友丁立新康立山株洲工学院计算机系湖南株洲412008 武汉大学软件工程国家重点实验室湖北武汉430072

利用小波变换为正则化方法提供一种估计噪声能量的机制,根据估计得到的噪声能量,再利用经典正则化方法求解正则化参数,从而得到正则化解.实验结果表明带估计噪声能量机制的正则化方法,在噪声能量和原图像能量信息未知的情况下,具有较快... 详细信息

利用小波变换为正则化方法提供一种估计噪声能量的机制,根据估计得到的噪声能量,再利用经典正则化方法求解正则化参数,从而得到正则化解.实验结果表明带估计噪声能量机制的正则化方法,在噪声能量和原图像能量信息未知的情况下,具有较快的计算速度和较好的恢复能力.

关键词：噪声估计能力图像恢复正则化小波变换

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一种面向因特网环境的软件组件分类模式

武汉大学学报（理学版） 2005年第5期51卷 609-614页

作者：沈美娥王铁峰李明新应时北京信息工程学院计算机系北京100101 武汉大学软件工程国家重点实验室湖北武汉430072

针对已有的软件组件分类模式不适应使用要求的问题,面向因特网环境,提出了一种新的软件组件分类模式CSSC.该模式包括体系分类子模式CSSC-S和分面分类子模式CSSC-F,其中CSSC-S为因特网中的组件专用搜索引擎提供信息支持,CSSC-F为检索引... 详细信息

针对已有的软件组件分类模式不适应使用要求的问题,面向因特网环境,提出了一种新的软件组件分类模式CSSC.该模式包括体系分类子模式CSSC-S和分面分类子模式CSSC-F,其中CSSC-S为因特网中的组件专用搜索引擎提供信息支持,CSSC-F为检索引擎提供信息支持.论文结果表明CSSC模式能有效地支持重用者在因特网中查询所需的软件组件.

关键词：组件资源库体系分类法分面分类法搜索引擎检索引擎

Singularity of Some software Reliability Models and Parameter Estimation Method

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wuhan university Journal of Natural Sciences 2000年第1期5卷 35-40页

作者： XU Ren-zuo ZHOU Rui YANG Xiao-qing (state key laboratory of software engineering, wuhan university, wuhan 430072, china) wuhan university State Key Laboratory of Software Engineering Wuhan China (GRID:grid.49470.3e) (ISNI:***)

According to the principle, “The failure data is the basis of software reliability analysis”, we built a software reliability expert system (SRES) by adopting the artificial intelligence technology. By reasoning out the conclusion from the fitting results of failure data of a software project, the SRES can recommend users “the most suitable model” as a software reliability measurement model. We believe that the SRES can overcome the inconsistency in applications of software reliability models well. We report investigation results of singularity and parameter estimation methods of experimental models in SRES.

关键词： software reliability measurement models software reliability expert system singularity parameter estimation method path following method maximum likelihood ML-fitting algorithm

Gradient Gene Algorithm: a Fast Optimization Method to MST Problem

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wuhan university Journal of Natural Sciences 2001年第Z1期6卷 535-540页

作者： Zhang Jin bo, Xu Jing wen, Li Yuan xiang state key laboratory of software engineering, wuhan university, wuhan 430072, china state key laboratory of software engineering Wuhan University Wuhan China

The extension of Minimum Spanning Tree(MST) problem is an NP hard problem which does not exit a polynomial time algorithm. In this paper, a fast optimization method on MST problem——the Gradient Gene Algorithm is introduced. Compared with other evolutionary algorithms on MST problem, it is more advanced: firstly, very simple and easy to realize; then, efficient and accurate; finally general on other combination optimization problems.

关键词： combination optimization minimum spanning tree problem extension of minimum spanning tree problem gradient gene algorithm

Genetic Algorithm for Chinese Postman Problems

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wuhan university Journal of Natural Sciences 2003年第S1期8卷 316-318页

作者： Jiang Hua, Kang Li-shanstate key laboratory of software engineering, wuhan university,wuhan 430072,Hubei, china wuhan university State Key Laboratory of Software Engineering Wuhan Hubei China (GRID:grid.49470.3e) (ISNI:***)

Chinese Postman Problem is an unsettled graphic problem. It was approached seldom by evolutionary computation. Now we use genetic algorithm to solve Chinese Postman Problem in undirected graph and get good results. It could be extended to solve Chinese postman problem in directed graph. We make these efforts for exploring in optimizing the mixed Chinese postman problem.

关键词： Chinese postman problem Eularian graph genetic algorithm evolutionary computation