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1.
XML已经成为表示结构化和半结构化数据的标准格式,XML中采用DTD和XML Schema模式来描述数据结构.结合XML Schema与面向对象的思想,提出了一种基于XML Schema建模的方法,并辅以实例.  相似文献   

2.
XML已经成为表示结构化和半结构化数据的标准格式,XML中采用DTD和XML Schema模式来描述数据结构。结合XML Schema与面向对象的思想,提出了一种基于XML Schema建模的方法,并辅以实例。  相似文献   

3.
XML为Web的数据管理提供了新的数据模,可以说,XML就是WWW上的半结构化数据。本就XML数据管理的几个重要问题进行了阐述。  相似文献   

4.
结合XML技术及半结构化数据索引和Lore系统中的索引结构,提出了一种特殊的XML数据索引建立的方法,及利用索引实现对XML查询的优化。  相似文献   

5.
与平台无关的数据表示形式XML已经成为Internet上数据交换的主流语言,而关系数据是核心业务系统中最常用的数据技术,文章给出了XML与关系数据之间的转换方法,并利用Java语言实现了XML半结构化数据与关系数据之间的转换。  相似文献   

6.
基于关系模式的XML数据存储技术研究   总被引:2,自引:0,他引:2  
XML数据具有自描述性和半结构化特征,所以在数据库、网络等许多方面都有良好的应用前景.本文讨论了如何利用关系模式来映射XML模式以在XML的文档数据结构和底层的存储结构间进行转换,从而在关系数据库中存取XML数据的技术;同时进行了初步应用.  相似文献   

7.
由于Web上半结构化数据的复杂性,XML已成为Internet上数据交换的标准。这就对于XML存储与检索等一系列文件管理提出了新的要求。主要结合SQL Server关系数据库管理系统,分析了XML在关系数据库中的存储策略,以及结合XQuery对于数据库中XML文档的检索方法。  相似文献   

8.
面向Web的数据挖掘是当今数据挖掘技术的热点。XML作为直接面向Web数据、基于Internet上的一种新的数据管理手段,为面向Web的数据挖掘带来了便利。分析了Web数据挖掘的特点和XML语言的优点,提出了运用XML解决Web数据挖掘中半结构化数据的模型抽取方法,最后对该方法进行了实例说明。  相似文献   

9.
企业目前各种信息系统由于数据格式不一,形成知识孤岛,造成组织所需的大量知识散布在各个异构数据系统中。面对大量的非结构化数据,传统的知识发掘显得力不从心。本文拟通过XML标记语言的特点,将企业信息资源中非结构化数据半结构化,利用基于传统数据库的知识挖掘技术构建基于非结构化数据的知识发掘系统。  相似文献   

10.
要对Internet上巨量的数据进行数据挖掘 ,半结构化数据模型及其抽取技术是前提。对数据挖掘技术和Internet上数据结构的特征进行分析 ,并就把XML作为一种半结构化的数据模型实施查询与模型抽取 ,从而完成面向Internet数据挖掘的方法 ,且结合SQLServer 2 0 0 0的应用进行探讨  相似文献   

11.
XML作为基于web的描述数据、交换数据标准,正日益流行和普及,因此从web的大量数据中挖掘XML数据变得日益重要。本从Apriorl算法出发,提出了基于Apriorl应用的XML关联关系的挖掘算法。  相似文献   

12.

Objectives

Successful implementation of child protection program interventions and child and family welfare services is contingent upon the availability and use of good quality information, as emphasized by the recent Convention on the Rights of the Child's General Comment 13. Yet, the role of information within child protection is not well understood, and ongoing efforts to strengthen child protection systems have not systematically examined this critical function. Recognizing these shortcomings, the Government of Indonesia and UNICEF commissioned a study to identify a “road map” for a national child protection information system.

Methods

The used desk review, semi-structured interviews, focus groups and site visits to identify existing data collection practices, and analyze the appropriateness and efficiency of information management mechanisms from the national down to the community level.

Results

The results show that the prevailing situation in Indonesia is characterized by a lack of accurate information on all necessary aspects of child care and protection including magnitude of problems, causality analysis and impact of programmatic responses. There is no lead actor for child protection at the national level, and there are no agreed upon data collection priorities, procedures or methods for a shared data collection system.

Conclusion

The study suggests a need to reframe the dominant language from a “child protection information management system” to a “child protection surveillance system” to promote clearer data collection objectives and activities. Identifying a government ministry to lead child protection efforts and to forge closer partnerships among relevant actors will be required to support a national surveillance system. Additionally, addressing obstacles that limit child protection incident detection at the community level is critical. In addition to strengthening Indonesia's system, this study's approach and findings have the potential to help to inform ongoing child protection system development initiatives in other countries as well.  相似文献   

13.
This article reports on some of the research findings of a major, multi-site case study of character formation in young people in England. Religion was not the focus of this research, but emerged as significant in each case study. In particular, the religious and spiritual beliefs and practices of young people were positively connected with their level of community involvement. The research provides evidence that indicates an association between young religious believers and those who are constructively engaged in both their communities as well as being politically minded. The main methods of data collection for this article included semi-structured discussions/interviews together with semi-structured individual and questionnaire surveys.  相似文献   

14.
This study is based on the presumption that there is often an underuse of temporary staff in client companies (CC) with highly skilled professionals. The study combines theories of the flexible organisation and a sociocultural perspective on learning within the framework of an inter-organisational context. The data are based partly on 17 transcribed, semi-structured interviews with individuals in various types of health care and social services. The data are also based on two semi-structured focus group interviews with managers responsible for hiring social workers, nurses and doctors in two different temporary work agencies (TWA) as well as semi-structured focus group interviews with eight managers from a large health care organisation. The results show that CCs only use a limited amount of the highly skilled personnel’s capacity and exclude preconditions for taking over and absorbing knowledge from temporary workers. This contradicts the idea that staffing allows temps to increase their skills and enhance their employability. In addition, both TWA and the CC pronounce an interest in and readiness for deepening the business relationships between them, but they claim the other is responsible for initiation. The results reflect information not only about temporary workers with higher education but also the new business relationship between TWA and CC in the form of combined skills and workplace validation.  相似文献   

15.

The purpose of the current study is to investigate the effectiveness of unstructured, semi-structured, structured hands-on modeling activities and traditional teaching methods in developing academic achievement, problem-solving skills, and scientific creativity in prospective science teachers in the subject of the human circulatory and respiratory systems. A pre-test–post-test quasi-experimental design was used to investigate the treatment effect. There were three experimental groups and a control group in a total of 88 prospective science teachers who were enrolled in the Department of Science Education. The Academic Achievement Test (AAT), Problem-Solving Inventory (PSI), and Scientific Creativity Scale (SCS) were applied as data collection tools. The researchers employed two-way ANOVA and ANCOVA to analyze the data. Results revealed that all modeling activities were effective in enhancing participants’ AAT scores when compared with those of the control group. In addition, unstructured modeling and semi-structured modeling activities were more effective than structured modeling activities in improving AAT scores. For the AAT retention test, unstructured and semi-structured modeling groups showed better performance than the structured modeling group and control group. Moreover, there was a statistically significant difference in PSI scores of the participants in favor of unstructured and semi-structured modeling activities. Lastly, there was no statistically significant difference in SCS scores with the experimental groups and control group.

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16.
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