基于模糊综合评判法的高校教师教学质量评价研究     

李冠军  孙春香 《绵阳师范学院学报》2011,30(5):142-146

教学质量的评价是高校教学管理中一个非常重要的环节,该文应用模糊模糊综合评判法,建立高校教师教学质量评价体系模型,实现从定性到定量评价的转换,从而更加准确、全面、科学、公正地对教师教学质量进行评价。并举例说明该方法对评估高校教师教学质量具有一定的应用价值。  相似文献   

线性流形上左右逆特征值问题的最小二乘解     

李珍珠  唐耀平 《湖南科技学院学报》2011,32(8):1-5

利用矩阵的奇异值分解,研究了线性流形上实对称矩阵的左右逆特征值的最小二乘解,得到了最小二乘解的一般表达式.对于给定的矩阵,得到了它的最佳逼近解。  相似文献   

高阶Voronoi图在超市选址定位研究中的应用   总被引：1，自引：0，他引：1  

董伟  张静  赵英豪 《石家庄学院学报》2011,13(6):68-71

以石家庄市桥东区为例,选取该地区的七家大型综合超市进行大量实际调查和科学的分析研究,根据各种影响因素构建超市位置和市场面积类型的研究模型,采用高阶Voronoi图对该地区内超市的势力范围进行研究,指出新超市选址的大概轮廓,并根据加权因素给出最佳选址范围和新建超市的规模.  相似文献   

改善和提高参数单侧假设检验教学效果的实践与探索     

李景和 《教学研究(河北)》2015,(3)

分析了参数单侧假设检验教学的现状和存在的问题,提出和论证在该部分内容的教学中应注意讲好思想方法、确定好小概率事件和适当介绍参数单侧检验中原假设的确立原则。通过加强这三个方面的工作,以期缓解学生学习的畏难情绪,提高学生的学习兴趣,从而有效改善和提高参数单侧假设检验的教学效果。  相似文献   

Sample Size Calculations for Precise Interval Estimation of the Eta-Squared Effect Size     

Gwowen Shieh 《Journal of Experimental Education》2015,83(2):203-217

Analysis of variance is one of the most frequently used statistical analyses in the behavioral, educational, and social sciences, and special attention has been paid to the selection and use of an appropriate effect size measure of association in analysis of variance. This article presents the sample size procedures for precise interval estimation of eta-squared and partial eta-squared in fixed-effects analysis of variance designs. The desired precision of a confidence interval is assessed with respect to (a) the control of expected width and (b) the tolerance probability of interval width within a designated value. In addition, sample size calculations for standardized contrasts of treatment effects and corresponding partial strength of association effect sizes are also considered.  相似文献   

The Efficacy of Using Diagrams When Solving Probability Word Problems in College   总被引：1，自引：1，他引：0  

Brian D. Beitzel  Richard K. Staley 《Journal of Experimental Education》2015,83(1):130-145

Previous experiments have shown a deleterious effect of visual representations on college students’ ability to solve total- and joint-probability word problems. The present experiments used conditional-probability problems, known to be more difficult than total- and joint-probability problems. The diagram group was instructed in how to use tree diagrams to solve conditional probability problems; the equation-only group was instructed only in the formulation of equations. Results indicated that the diagram group outperformed the equation-only group on a posttest of 10 near- and far-transfer problems given immediately and as long as 1 week later (Experiment 2). In addition, when rating their experience with the training phase the equation-only group reported significantly higher levels of frustration and lower levels of perceived success than the diagram group.  相似文献   

Unders and Overs: Using a Dice Game to Illustrate Basic Probability Concepts          下载免费PDF全文

Sandra Hanson McPherson 《Teaching Statistics》2015,37(1):18-22

In this paper, the dice game Unders and Overs is described and presented as an active learning exercise to introduce basic probability concepts. The implementation of the exercise is outlined and the resulting presentation of various probability concepts are described.  相似文献   

相遇信息估算概率的机会网络路由协议     

龚丁海 《科技通报》2014,(11)

在分析现有机会网络转发策略的基础上,根据Prophet和Spray and wait协议的特点提出一种相遇信息估算转发概率的机会网络路由协议(BPAS),BPAS以节点相遇的频率、相遇的连通时长和断连时长作为参量引入转发概率的计算,消息转发给转发概率大的节点,使得消息朝更靠近目的节点方向发送。仿真结果表明,BPAS协议与Epidemic协议、Prophet协议和Spray and wait协议相比,能获得更高的消息交付率和更低的通信开销,消息总转发次数更少。实验证明BPAS协议能适应于节点密度较大的机会网络环境。  相似文献   

高考概率问题有“型”可循     

谢武辉  蓝慧菁 《科教文汇》2014,(26):152-154

概率问题是近年广东高考的一个必考考点。本文对概率问题的常考题型和常用的思想方法进行归纳,以及对学生解题时常混淆的概念进行区分。  相似文献   

概率统计课程教学方法的探索实践     

陈俊英  曾浩宇 《科教文汇》2014,(2):55-56

概率统计是高等院校大学生的一门公共基础数学课程,本文结合概率统计课程的教学实践,提出“阅读教学”、“一题多解”、“案例教学”、“讲授讨论相结合”等灵活多样的教学方法,提高教学效率、培养学生多种能力。  相似文献