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1.
为了弥补现有语义Web服务在动态性和交互性方面的不足,将语用Web引入到Web服务研究中,提出了语用Web服务技术,并将其应用于Web服务管理领域.面向语用Web服务管理分为4个层次:语法Web服务层,语义Web服务层,语用Web服务层,网络服务管理层.给出了语用Web服务与语义Web服务协作流程的实现场景.语用Web服务管理促进了服务和消费者之间理解和交互模式的改变.  相似文献   

2.
基于Web的数据挖掘研究   总被引:2,自引:0,他引:2  
基于Web的数据挖掘是一个结合了数据挖掘和WWW的热门研究主题.本文介绍了Web数据的特点及Web数据挖掘研究的三种分类:Web内容挖掘、Web结构挖掘、Web使用挖掘,并总结了Web日志挖掘的常用数据挖掘技术.  相似文献   

3.
基于Web的数据挖掘研究   总被引:6,自引:0,他引:6  
基于Web的数据挖掘是一个结合了数据挖掘和WWW的热门研究主题。本文介绍了Web数据的特点及Web数据挖掘研究的三种分类:Web内容挖掘、Web结构挖掘、Web使用挖掘,并总结了Web日志挖掘的常用数据挖掘技术。  相似文献   

4.
随着Web技术的发展,Web服务在网络中得到了广泛的应用.本文结合Web服务的发展需求,详细介 绍Web服务的含义和Web服务的应用分类.最后介绍Web服务的现状,并探讨Web服务的应用前景.  相似文献   

5.
白颖妹 《科技信息》2009,(18):182-182
本文从Web数据挖掘的概念入手,介绍了Web挖掘的一般流程,重点阐述了Web挖掘任务的三种分类:Web内容挖掘、Web结构挖掘和Web使用挖掘,并给出实现这三类挖掘的常用技术和方法。  相似文献   

6.
基于语义的Web服务框架研究   总被引:1,自引:0,他引:1  
姜久雷 《科技信息》2007,(30):15-16
Web服务是Web上数据和信息集成的有效机制,语义Web服务则是在Web服务中加入语义的支持,使得计算机之间能够理解互相通信的内容,以进一步实现Web服务的自动化。本文从Web服务的自动发现、自动执行和自动组合等方面对语义Web服务的实现进行了探讨,最后给出了一个语义Web服务的框架实例。  相似文献   

7.
基于Web使用挖掘的个性化站点研究   总被引:1,自引:0,他引:1  
针对用户特性向用户提供服务的个性化Web站点已经成为Web技术的研究热点.将数据挖掘技术应用于Web日志记录,来发现用户访问Web页面的模式,形成了Web使用挖掘.通过建立与更新用户模式库,个性化Web站点为用户的访问提供推荐.研究了Web使用挖掘技术,并对个性化Web站点的建立进行了探讨.  相似文献   

8.
分析了Web服务主要的非功能属性因素,探讨了这些因素对Web服务的服务质量所产生的影响.提出了Web服务的QoS评价方法,并将Web服务的QoS作为Web服务选择的条件之一.构建基于QoS的Web服务组合模型,利用查找后继Web服务的选择方法,实现Web服务的有效组合,使得组合Web服务既能满足用户的功能需求,又达到用户个性化服务的目的.  相似文献   

9.
语义化Web的理论基础与技术基础   总被引:1,自引:0,他引:1  
语义Web并非一个独立的Web,而是当前Web的延伸,其目标是让计算机能够"理解和处理"现在的Web仅仅能显示的数据,并为人们提供各种智能服务.目前在世界范围内对语义Web的研究尚处于起步阶段,与国外相比,我国对语义Web的研究相对较晚.本文简单介绍了语义Web的概念和体系结构,对语义化Web的理论基础与技术基础进行了分析,总结出了语义化Web研究中的关键问题.  相似文献   

10.
廖琪男 《科技资讯》2007,(32):86-87
Authorware多媒体开发工具和Web3D在计算机应用领域都有着非常广泛的应用,将Web3D嵌入到多媒体应用系统更能发挥它的强大作用.本文介绍Web3D的基本概念、Web3D实现技术及Web3D的实际应用,论述Authorware与Web3D相融合的意义,研究使用Authorware中浏览html格式文件技术发布Web3D的方法.本方法适合于Director等多媒体开发工具发布Web3D.  相似文献   

11.
Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.  相似文献   

12.
何延凌 《科技信息》2008,(4):258-258
Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women's language from these perspectives: pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women's language, more attention should be paid to language use in social context. What's more, the linguistic phenomena in a speaking community can be understood more thoroughly.  相似文献   

13.
理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。  相似文献   

14.
As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.  相似文献   

15.
正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-  相似文献   

16.
We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-  相似文献   

17.
正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that  相似文献   

18.
For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the  相似文献   

19.
<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with  相似文献   

20.
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