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1.
树型目录在WEB应用程序中有着广泛的应用。介绍了ASP.NET中数据库访问技术及TreeView控件生成动态树型目录的方法,在此基础上结合某大型航空产品质量评估系统,提出了一种具有信息统计功能的树型目录,该树型目录可方便直观地反映信息汇总结果。同时,给出了在ASP.NET环境下实现质量评分树型目录的方法。  相似文献   

2.
异构信息资源库的构建及其关键技术实现   总被引:4,自引:0,他引:4  
异构数据资源库的构建及其关键技术已成为系统集成和信息重用技术的重要内容.为了实现异构数据资源库底层信息的集成及共享,针对不同应用系统的异构数据,采用逆序树结构,改进了树型结构的存储方式,以逆序树加层号的方式实现任意层次树状结构的关系数据库存储,提高了数据库存储的树型结构的读取还原速度,解决了快速重建技术;在关系型数据库中,结合树结构设计了基于二进制大对象(BLOB)的相对抽象、通用的数据存储格式;结合基于BLOB存储及树状结构管理的方法,提出了对异构数据的资源组织、资源访问和安全管理等一系列关键技术的实现方案;在此基础上,构建了面向快速设计的网络资源库平台.该平台有效地实现了信息资源的存储、共享、服务和管理功能,提高了信息资源的综合应用水平.  相似文献   

3.
李冠德  陈梦东 《微机发展》2005,15(11):112-114
在信息管理系统中,经常会遇到信息的维护操作,树型目录以它直观性的特点在信息维护中起到重要的作用。为了在信息管理系统中提供一种方便的树型目录维护,介绍了树型目录在Web信息展示中的使用,分析了树型目录的特点,提出并实现了基于Web组件的树型目录。在具体实现过程中,使用了Java小应用程序,以达到树型目录内容的灵活定制和使用的方便性。通过在实际项目中的使用,检验并到达了树型目录设计的目的。只要修改相应的配置文件,即可达到修改目录内容的目的。  相似文献   

4.
以学校的计算机学院网站为例论述了普通门户网站的开发、系统总体设计及主要技术细节。系统中使用了传统的目录级固定的管理方法和树型动态目录管理方法。所设计的系统具有动态管理和灵活模块的结构。  相似文献   

5.
在信息管理系统中,经常会遇到信息的维护操作,树型目录以它直观性的特点在信息维护中起到重要的作用.为了在信息管理系统中提供一种方便的树型目录维护,介绍了树型目录在Web信息展示中的使用,分析了树型目录的特点,提出并实现了基于Web组件的树型目录.在具体实现过程中,使用了Java小应用程序,以达到树型目录内容的灵活定制和使用的方便性.通过在实际项目中的使用,检验并到达了树型目录设计的目的.只要修改相应的配置文件,即可达到修改目录内容的目的.  相似文献   

6.
将ActiveX控件应用于Visual FoxPro中的一个实例。利用Comctl32.ocx文件中的TreeView控件,将VFP数据库字段构建出具有Windows文件夹分层列表展开的风格。使数据库字段选择既方便又美观。该程序可将任意VFP数据库中能被有效地分层显示的字段任意字段构建树型目录,也可稍加修改筛选不同类型的或条件的字段来构建树型目录。该实例具有一定的实用性,可根据需要将其嵌入自编的应用系统中,使自己的作品看起来更美观也更专业。  相似文献   

7.
用递归算法创建树型视图   总被引:3,自引:0,他引:3  
论述了递归算法的特征,并运用递归算法将后端数据库中的数据库检索出来放到一个树控件中创建一个树型目录,在客户端可操作该树型目录,以完成进一步的数据库导航功能。  相似文献   

8.
张川  赵若曼 《计算机时代》2007,(11):34-35,38
文章以题库管理系统的开发为例,详细介绍了B/S三层架构中树型结构的设计和实现方式.提出了一种在浏览器中构建动态树型结构的解决方案,即使用TreeView控件、数据库和递归算法来实现动态树型结构,灵活方便地管理题库.最后重点介绍了递归算法、树结点定位展开等的程序实现.  相似文献   

9.
文章介绍了在ASP.NET下的Web应用中不使用控件实现动态树型目录的方法,并以Oracle数据库为例,C#为开发语言,演示了该树型目录的实现过程。  相似文献   

10.
一种活动目录树的实现与应用   总被引:1,自引:0,他引:1  
活动目录树(Active Directory Tree,ADT)是精品课程网站建设中组织课件、教学内容等的有效方式.首先介绍了活动目录树的一种存储结构--双亲兄长表示法,然后阐述了活动目录树的一种生成算法,讨论了算法的原理,给出了算法的形式化描述,最后给出了该算法在《数据结构》课程网站建设中的一个应用.  相似文献   

11.
Abstract This paper describes an approach to the design of interactive multimedia materials being developed in a European Community project. The developmental process is seen as a dialogue between technologists and teachers. This dialogue is often problematic because of the differences in training, experience and culture between them. Conditions needed for fruitful dialogue are described and the generic model for learning design used in the project is explained.  相似文献   

12.
European Community policy and the market   总被引:1,自引:0,他引:1  
Abstract This paper starts with some reflections on the policy considerations and priorities which are shaping European Commission (EC) research programmes. Then it attempts to position the current projects which seek to capitalise on information and communications technologies for learning in relation to these priorities and the apparent realities of the marketplace. It concludes that while there are grounds to be optimistic about the contribution EC programmes can make to the efficiency and standard of education and training, they are still too technology driven.  相似文献   

13.
融合集成方法已经广泛应用在模式识别领域,然而一些基分类器实时性能稳定性较差,导致多分类器融合性能差,针对上述问题本文提出了一种新的基于多分类器的子融合集成分类器系统。该方法考虑在度量层融合层次之上通过对各类基多分类器进行动态选择,票数最多的类别作为融合系统中对特征向量识别的类别,构成一种新的自适应子融合集成分类器方法。实验表明,该方法比传统的分类器以及分类融合方法识别准确率明显更高,具有更好的鲁棒性。  相似文献   

14.
Development of software intensive systems (systems) in practice involves a series of self-contained phases for the lifecycle of a system. Semantic and temporal gaps, which occur among phases and among developer disciplines within and across phases, hinder the ongoing development of a system because of the interdependencies among phases and among disciplines. Such gaps are magnified among systems that are developed at different times by different development teams, which may limit reuse of artifacts of systems development and interoperability among the systems. This article discusses such gaps and a systems development process for avoiding them.  相似文献   

15.
This paper presents control charts models and the necessary simulation software for the location of economic values of the control parameters. The simulation program is written in FORTRAN, requires only 10K of main storage, and can run on most mini and micro computers. Two models are presented - one describes the process when it is operating at full capacity and the other when the process is operating under capacity. The models allow the product quality to deteriorate to a further level before an existing out-of-control state is detected, and they can also be used in situations where no prior knowledge exists of the out-of-control causes and the resulting proportion defectives.  相似文献   

16.
Going through a few examples of robot artists who are recognized worldwide, we try to analyze the deepest meaning of what is called “robot art” and the related art field definition. We also try to highlight its well-marked borders, such as kinetic sculptures, kinetic art, cyber art, and cyberpunk. A brief excursion into the importance of the context, the message, and its semiotics is also provided, case by case, together with a few hints on the history of this discipline in the light of an artistic perspective. Therefore, the aim of this article is to try to summarize the main characteristics that might classify robot art as a unique and innovative discipline, and to track down some of the principles by which a robotic artifact can or cannot be considered an art piece in terms of social, cultural, and strictly artistic interest. This work was presented in part at the 13th International Symposium on Artificial Life and Robotics, Oita, Japan, January 31–February 2, 2008  相似文献   

17.
Although there are many arguments that logic is an appropriate tool for artificial intelligence, there has been a perceived problem with the monotonicity of classical logic. This paper elaborates on the idea that reasoning should be viewed as theory formation where logic tells us the consequences of our assumptions. The two activities of predicting what is expected to be true and explaining observations are considered in a simple theory formation framework. Properties of each activity are discussed, along with a number of proposals as to what should be predicted or accepted as reasonable explanations. An architecture is proposed to combine explanation and prediction into one coherent framework. Algorithms used to implement the system as well as examples from a running implementation are given.  相似文献   

18.
This paper provides the author's personal views and perspectives on software process improvement. Starting with his first work on technology assessment in IBM over 20 years ago, Watts Humphrey describes the process improvement work he has been directly involved in. This includes the development of the early process assessment methods, the original design of the CMM, and the introduction of the Personal Software Process (PSP)SM and Team Software Process (TSP){SM}. In addition to describing the original motivation for this work, the author also reviews many of the problems he and his associates encountered and why they solved them the way they did. He also comments on the outstanding issues and likely directions for future work. Finally, this work has built on the experiences and contributions of many people. Mr. Humphrey only describes work that he was personally involved in and he names many of the key contributors. However, so many people have been involved in this work that a full list of the important participants would be impractical.  相似文献   

19.
基于复小波噪声方差显著修正的SAR图像去噪   总被引:4,自引:1,他引:3  
提出了一种基于复小波域统计建模与噪声方差估计显著性修正相结合的合成孔径雷达(Synthetic Aperture Radar,SAR)图像斑点噪声滤波方法。该方法首先通过对数变换将乘性噪声模型转化为加性噪声模型,然后对变换后的图像进行双树复小波变换(Dualtree Complex Wavelet Transform,DCWT),并对复数小波系数的统计分布进行建模。在此先验分布的基础上,通过运用贝叶斯估计方法从含噪系数中恢复原始系数,达到滤除噪声的目的。实验结果表明该方法在去除噪声的同时保留了图像的细节信息,取得了很好的降噪效果。  相似文献   

20.
蒙古语言是中国蒙古族使用的通用语言,由于蒙古文区别于其他文字的书写方式和其自身变形机制等特点,在很多通用的文字处理引擎中都不被支持。在嵌入式产品开发与应用领域中Linux加QTE已经成为流行方式。该文给出了一种在QTE环境上实现基于标准Unicode的蒙古文点阵显示和变形算法, 并自定义了支持蒙古文的QTE组件,扩展了QTE功能,为在Linux加QTE方式的嵌入式体系结构中处理蒙古文提供了一种解决方法。  相似文献   

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