共查询到20条相似文献,搜索用时 62 毫秒
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孟洁 《数字社区&智能家居》2006,(32)
面向对象的编程思想,毫无疑问已经是现在的主流设计思想,无论在桌面式应用还是在基于网络的web应用,都在广泛使用这种思想。Java作为面向对象语言的重要代言人,充分展示了这种思想的妙处,特别是在组件技术方面。论文浅入深出的论述了Java简单组件技术Javabean的属性实现过程,并利用这个过程展示了组件之间进行通讯的能力。 相似文献
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面向对象DSS模型库设计 总被引:4,自引:0,他引:4
针对模型具有对象的特征,提出了一种采用面向对象技术构造DSS模型及模型库管理系统的方法。该方法选用Java语言来构造模型;采用面向对象思想中的工厂模式来动态生成模型;结合数据库技术来注册、部署模型;并且应用J2EE体系中的组件来调用模型。该方法基于J2EE体系结构,所以在灵活性、实用性、重用性以及跨平台等方面,都有很好的体现。 相似文献
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基于Java/Oracle Spatial构架的WebGIS研究与应用 总被引:5,自引:2,他引:5
Java开发WebGIS应用是一门新兴的技术。Oracle Spatial采用面向对象技术来管理空间数据,而面向对象数据模型正是目前GIS发展的方向。探讨了Java技术在WebGIS中的应用,分析了拓扑关系和面向对象的数据模型和Oracle Spatial空间数据库,最后讨论了结合Java和OracleSpatial的WebGIS应用实例。 相似文献
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周渝霞 《数字社区&智能家居》2002,(3)
近年来,随着Internet的发展,SUN公司开发的Java技术在Internet应用方面获得了很大成功,而动态网页开发技术JSP可以很好地将Java所具有的强大功能加以应用,从而实现更强大的WEB应用。JavaBean是一种基于Java的软件组件,JSP对于在Web应用中集成的JavaBean组件提供了完善的支持,这种支持不仅能缩短开发时间(可以直接利用经测试和可信任的已有组件,避免了重复开发),也为JSP应用带来了更多的可伸缩性,更好地理解JSP的运行原理,让我们首先来了解JSP运行过程。一、JSP技术及其运行基理Servlet是以Java语言写成,在服务… 相似文献
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利用EJB构造电子商务平台 总被引:3,自引:1,他引:3
EJB(Enterprise Java Bean) 是一种创建在服务端的可扩展、事务处理的、多用 户安全的企业级应用,它为开发分布式的N-Tier中间件提供了统一的组件结构框架。 利 用这种技术设计出运行在J2EE服务器上通用的电子商务平台,展示了开发网上商店的具体流 程,是EJB技术很典型的一个应用。 相似文献
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针对开发人员在利用Java Synth进行外观设计时需要在XML文件中描述数量繁多的组件属性这种缺点,文中利用Java与XML技术,按照UML的建模过程.实现了基于Java Synth的组件外观定制工具;通过设置组件的属性来定制组件外观,生成相应的XML文件.从而节省了Java程序员编写应用程序完整界面外观的工作量、时间,也降低了软件的开发成本. 相似文献
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面向对象技术与可视化开发环境 总被引:2,自引:0,他引:2
本文首先阐述了面向对象的思想,并充分说明了这种思想产生的根源和它对软件开发过程的影响,接着就可视化开发和面向对象技术在Delphi集成环境中的应用作了比较详细的解说。 相似文献
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S. Shaw 《Journal of Computer Assisted Learning》1993,9(2):93-99
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
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European Community policy and the market 总被引:1,自引:0,他引:1
C. Lloyd 《Journal of Computer Assisted Learning》1993,9(2):86-91
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
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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
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Wayne O’Brien Author Vitae 《Journal of Systems and Software》2008,81(11):1997-2013
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
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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
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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
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David Poole 《Computational Intelligence》1989,5(2):97-110
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
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Watts S. Humphrey 《Annals of Software Engineering》2002,14(1-4):39-72
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
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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