基于ESDA的福建省县域经济差异空间分析   总被引：1，自引：0，他引：1  

罗坤  杨明 《宜春学院学报》2007,29(6):53-55

选取了福建省各县域1995—2005年的人均GDP为背景数据,采用空间数据探索分析方法(ESDA)对福建省经济发展差异进行研究分析.通过对福建省县域人均GDP的空间自相关系数进行研究,结果表明福建省县域经济存在明显的空间自相关,并且表现为起伏变化形式.最后对福建省县域经济进行局域自相关分析,揭示了闽西和闽北地区经济低增长县域的空间集聚数量呈现出先增加后减少的特点.  相似文献   

基于空间数据仓库体系结构的数据仓库质量研究   总被引：1，自引：0，他引：1  

王占昌 《鞍山师范学院学报》2002,4(1):14-17

数据仓库质量对数据仓库应用至关重要.本文在空间数据仓库体系结构基础上,对数据仓库质量进行研究,以进一步优化空间数据仓库.  相似文献   

A comparative analysis of multi-output frontier models   总被引：1，自引：0，他引：1  

Tao Zhang  Eoghan Garvey 《浙江大学学报(A卷英文版)》2008,9(10):1426-1436

Recently, there have been more debates on the methods of measuring efficiency. The main objective of this paper is to make a sensitivity analysis for different frontier models and compare the results obtained from the different methods of estimating multi-output frontier for a specific application. The methods include stochastic distance function frontier, stochastic ray frontier, and data envelopment analysis. The stochastic frontier regressions with and without the inefficiency effects model are also compared and tested. The results indicate that there are significant correlations between the results obtained from the alternative estimation methods.  相似文献   

太白山国家保护植物优先保护顺序的定量分析(Ⅱ)     

傅志军  张萍 《陕西理工学院学报(社会科学版)》2001,(3)

在野外调查的基础上 ,运用濒危系数、遗传多样性损失系数和物种价值系数对太白山自然保护区 1 2种国家保护植物的优先保护顺序进行定量分析 ,结果表明属一级保护的有星叶草、大果青、青檀、紫斑牡丹 4种 ,属二级保护的有金钱槭、山白树、水曲柳、羽叶丁香 4种 ,属三级保护的有野大豆、膜荚黄芪、华榛 3种 ,属四级保护的仅狭叶瓶尔小草 1种 .提出了加强珍稀植物保护的措施 .  相似文献   

高职“商务实用日语”在线课程的实践探索——以江苏经贸职业技术学院为例     

凌红 《江苏经贸职业技术学院学报》2020,(1):86-88

随着互联网时代的发展,在教育媒介的信息技术化驱动下,深化教学模式改革成为提高教学质量、优化教学资源的必然之路。分析“商务实用日语”在线课程建设要点,总结建设经验,反思建设不足,以期对商务日语专业课程改革提供参考。  相似文献   

WEB日志挖掘在个性化网络教育中的应用   总被引：13，自引：0，他引：13  

黄茜 《现代教育技术》2004,14(5):52-55

本文介绍了Web日志挖掘的基本概念和过程,通过对学习者在网络教育中留下的日志信息进行挖掘,以实现个性化的网络教育,更好的满足不同类别学习者的需求。  相似文献   

基于Oracle Spatial的空间查询技术及其优化     

熊雷 《教育技术导刊》2008,7(8):7-9

从Oracle Spatial的空间查询分析出发,结合实例分析了它的查询模型、空间算子以及常用的空间函数,最后给出了Oracle Spatial中空间查询的优化建议。  相似文献   

应用型课程改革实践——以“数据结构”为例     

黄芳 《教育教学论坛》2021,(13):75-78

应用型课程是应用型高校转型的关键,是实现应用型人才培养的主渠道。“数据结构”是计算机专业的核心课程,在整个专业课程体系中处于承上启下的核心地位。通过分析目前“数据结构”课程教学中存在的问题,遵循“应用型课程建设七要素”,提出基于“工作过程系统化”的应用型本科院校“数据结构”课程体系教学改革,并从课程定位、课程设计、课程实施、课程考核与评价几个方面阐述了应用型教学改革实践。  相似文献   

Affordances of narrative and numerical data: A social-semiotic approach to data use     

《Studies in Educational Evaluation》2021

Data use in education is a sensemaking process in which practitioners and researchers interact with different systems of meaning such as anecdotes or spreadsheets. The representational qualities of data and their influence on practice are critical but less well-discussed aspects of data use. Drawing on social semiotics, this theoretical article proposes that data should be discussed in terms of narrative and numerical modes of representation. Narrative data typically consist of protagonists and actions organized in a temporal structure, while numerical data typically consist of mathematical notations and visual representations such as graphs and figures. We argue that the representational properties of these two modes affect how data are interpreted and acted upon. We then present two contrasting cases from New Zealand and Norway of how affordances affect teachers’ data use processes. Finally, we discuss five challenges arising from our theorization about the affordances of data.  相似文献   

Capacity building to bridge data use and instructional improvement through evidence on student thinking     

《Studies in Educational Evaluation》2021

While schools and systems across the globe promote data-driven decision making, teachers often struggle to use data, especially from external assessments, to inform daily instruction. In this paper, we examine teacher capacity building for a less typical form of data use - evidence on student thinking. We draw on data from a longitudinal, in-depth qualitative study involving middle school math teachers who were engaged in an instructional improvement project. Findings show that data use occurred when evidence from student thinking was introduced as part of the instructional planning process. This shift was facilitated by an instructional coach whose capacity building efforts with teachers focused on coherence, specifically planning high quality instruction and using data effectively, while also meeting district pacing and unit planning goals. When teachers put new strategies into practice, feedback from formative assessment data allowed teachers to identify and address misconceptions in student thinking. Learning how to use data as part of instruction helped teachers build capacity to reflect on their own practice. Implications for theory, practice, and research are discussed.  相似文献