一种基于SOAP协议的XML数据传输的实现   总被引：1，自引：0，他引：1  

夏小云  喻金平 《科技广场》2005,(8):40-43

HTML作为一种简单易用的标记语言，极大的推动了Internet的发展.随着电子商务的发展，传统的数据交换技术已不能满足企业间大容量数据的交互.XML作为下一代Internet语言，简单易用并且具有极大的灵活性.SOAP是一种使用XML定义的在两个软件系统之间发送消息的简单协议，使用它可以在不同的应用程序之间方便地交换数据.本文描述了基于SOAP协议的XML数据网络传输的实现模型。  相似文献   

对象关系数据仓库中的元数据管理     

彭丹 《科技广场》2007,(1):79-81

随着数据仓库(DW)和在线分析(OLAP)技术的发展,关系数据库的局限性越来越突出。而另一方面,对象关系数据库日益发展,促成了对象关系数据仓库的产生。本文主要介绍了建立在对象关系数据库基础上的数据仓库系统的元数据,并给出了一种新的元数据,用来实现从面向对象环境到关系环境的映射。  相似文献   

高校跨学科创新团队的成长与成长性——一个“社会-认知-能力”的理论框架   总被引：3，自引：0，他引：3  

柳洲 《软科学》2010,24(7):9-13

基于"社会-认知-能力"视角,UIIT包含"团队认知"和"团队情感"两个相互耦合的子系统,具有社会和认知双重属性。UIIT是一个具有适应能力和竞争力的"认知-情感"知识创新系统,从能力角度看,UIIT的成长是一个团队智商和团队情商以及两者匹配度不断提高的过程,影响其成长性的关键因素,是建立在团队智商和情商耦合基础上的团队选择力与优化力。  相似文献   

构建基于数据挖掘技术的客户关系管理系统     

俞鸣春  黄江燕  夏小云 《科技广场》2005,(12):51-53

随着企业对客户关系管理的愈加重视，数据挖掘技术已成为实现客户关系管理的重要手段。本文介绍了客户关系管理系统和数据挖掘相关技术，并结合保险业的特点。分析了数据挖掘技术在保险CRM中的应用案例，指出了其商业价值。  相似文献   

Fault diagnosis for analog circuits based on chaotic signal excitation     

Hong-Guang Ma  Xiao-Fei Zhu  Ming-Shun Ai  Ji-Dong Wang 《Journal of The Franklin Institute》2007,344(8):1102-1112

A fault diagnosis method for analog circuit is proposed in this paper. An all-purpose amplifier is taken as the typical circuit under test (CUT). The chaotic signal, which is generated by an improved Chua's circuit, is employed as the excitation signal of CUT. The algorithm for phase-space reconstruction of chaotic time series is a combination algorithm of multiple autocorrelation and Γ-test. The circuit state is estimated based on detecting the geometric change of Chua's attractor with a data-mining approach. For the purpose of information fusion, another eight features are extracted from the testing data to comprehensively determine the CUT states. A discussion is made for comparing the effectiveness of each feature according to the testing results.  相似文献   

A citation-based document retrieval system for finding research expertise     

Quan Thanh Tho  S.C. Hui  A.C.M. Fong 《Information processing & management》2007

Current citation-based document retrieval systems generally offer only limited search facilities, such as author search. In order to facilitate more advanced search functions, we have developed a significantly improved system that employs two novel techniques: Context-based Cluster Analysis (CCA) and Context-based Ontology Generation frAmework (COGA). CCA aims to extract relevant information from clusters originally obtained from disparate clustering methods by building relationships between them. The built relationships are then represented as formal context using the Formal Concept Analysis (FCA) technique. COGA aims to generate ontology from clusters relationship built by CCA. By combining these two techniques, we are able to perform ontology learning from a citation database using clustering results. We have implemented the improved system and have demonstrated its use for finding research domain expertise. We have also conducted performance evaluation on the system and the results are encouraging.  相似文献   

网络环境下的知识挖掘   总被引：9，自引：0，他引：9  

侯雅柟 《情报科学》2003,21(8):887-890

当前网络信息大爆炸，要从大量信息中获得所需知识就需要运用知识挖掘方法。本文首先对数据、信息、知识三个概念进行了区分，阐述了网络知识挖掘的概念及类型，并从数据仓库、语义网络和XML等底层信息加工组织方法上对网络知识挖掘进行探讨。  相似文献   

Matrix permanent inequalities for approximating joint assignment matrices in tracking systems     

Jeffrey K. Uhlmann 《Journal of The Franklin Institute》2004,341(7):569-593

This paper examines some of the combinatorial issues associated with the batch data association problem arising in tracking and correlation applications. A procedure is developed that addresses a large class of data association problems involving the calculation of permanents of submatrices of the original association matrix. This procedure yields what is termed the Joint Assignment Matrix (JAM), which can be used to optimally rank associations for hypothesis selection. Because the computational cost of the permanent scales exponentially with the size of the matrix, improved algorithms are developed both for calculating the exact JAM and for generating approximations to it. Empirical results suggest that at least one of the approximations is suitable for real-time hypothesis generation in large scale tracking and correlation applications. Novel theoretical results include an improved upper bound on the calculation of the JAM and new upper bound inequalities for the permanent of general nonnegative matrices. One of these inequalities is an improvement over the best previously known inequality.  相似文献   

科学是如何成为认识工具的?   总被引：1，自引：1，他引：1  

张礼建 《科学学研究》2003,21(3):236-239

科学成为认识工具的三个要素是 :个人经验变为集体经验 ;具有一套精密的推理规则 ;心理上的感觉材料与实体事物是有差别的。本文认为三要素可为我们理解科学的本质、科学的形成与发展提出思考的前提。  相似文献   

图书馆自动化系统更新中数据转换方法探讨   总被引：1，自引：0，他引：1  

李春红  叶丁 《情报科学》2002,20(11):1210-1211

本文阐述了图书馆自动化系统的必要性，并探讨了系统更新中书目数据转换的方法。  相似文献