新信息技术新课程标准新语文变革     

解自忠 《中国教育技术装备》2003,(11):17-18

科学地阐述了新的信息技术的不断出现并得到运用，《语文新课程标准》的正式出台，引发了语文教学的新变革。  相似文献   

灰色马尔科夫模型在高校招生中的应用研究     

冯晓林  王岁花 《教育教学论坛》2019,(24):44-46

本研究深入剖析了灰色马尔科夫模型在高校招生中的应用,由于高校生源变动的随机性、波动性以及复杂性,给招生预测工作带来了很多瓶颈。为了更准确地预测招生人数,我们将试图把灰色动态预测与马尔科夫预测模型融为一体,对高校招生人数进行预测。选取河南师范大学部分新生历年录取入学情况为研究对象,采用数据收集法、实验分析法、灰色马尔科夫模型等技术发掘数据中隐藏的规律和模式,从而为高校招生工作提供科学的依据。  相似文献   

基于m-相依序列的学习机器相对一致收敛的界     

王华丽 《襄樊学院学报》2011,32(11):5-8

为了研究m-相依序列下学习机器的推广性能,把基于独立同分布的结果推广到m-相依序列,建立采用ERM算法的学习机器的经验风险到它的期望风险相对一致收敛速率的界.并对m-相依序列现有的结论进行改进,得到了m-相依序列下,采用经验风险最小化算法学习机器的推广性能的界.  相似文献   

Investigative interviews of alleged sexual abuse victims with and without anatomical dolls     

Michael E. Lamb  Irit Hershkowitz  Kathleen J. Sternberg  Barbara Boat  Mark D. Everson 《Child abuse & neglect》1996,20(12):1251-1259

Verbal and nonverbal responses by alleged victims of child sexual abuse were coded for length, amount of information, and the manner in which they were elicited by the interviewer. In 16 of the interviews, anatomical dolls were employed for the purposes of demonstration, whereas they were not used in another eight cases matched with respect to other characteristics of the children and the alleged events. Children interviewed with dolls provided an equivalent number of details and spoke as many words in the substantive portion of the interview as did children interviewed without dolls, and interviewers in the two groups used similar probes to elicit information. However, the average responses by the children were significantly longer and more detailed when dolls were not used. Children gave longer and more detailed responses to open-ended invitations when dolls were not used. Caution is necessary when interpreting these findings.  相似文献   

Promoting cognitive and social aspects of inquiry through classroom discourse     

Hui Jin  Xin Wei  Peiran Duan  Yuying Guo  Wenxia Wang 《International Journal of Science Education》2016,38(2):319-343

We investigated how Chinese physics teachers structured classroom discourse to support the cognitive and social aspects of inquiry-based science learning. Regarding the cognitive aspect, we examined to what extent the cognitive processes underlying the scientific skills and the disciplinary reasoning behind the content knowledge were taught. Regarding the social aspect, we examined how classroom discourse supported student learning in terms of students' opportunities to talk and interaction patterns. Our participants were 17 physics teachers who were actively engaged in teacher education programs in universities and professional development programs in local school districts. We analyzed one lesson video from each participating teacher. The results suggest both promises and challenges. Regarding the cognitive aspect of inquiry, the teachers in general recognized the importance of teaching the cognitive processes and disciplinary reasoning. However, they were less likely to address common intuitive ideas about science concepts and principles. Regarding the social aspect of inquiry, the teachers frequently interacted with students in class. However, it appeared that facilitating conversations among students and prompting students to talk about their own ideas are challenging. We discuss the implications of these findings for teacher education programs and professional development programs in China.  相似文献   

GIS支持下土地利用空间演变过程的马尔可夫模拟研究--以上海市中心城区为例   总被引：5，自引：0，他引：5  

熊云波  吴玉鸣 《南阳师范学院学报》2002,1(6):87-92

以上海市中心城市区近50年来有代表性的土地利用类型图为数据源，采用GIS技术分析了上海市近50年来的土地利用总量变化；并在GIS支持下分别计算出相邻时间点不同土地利用类型的状态转移矩阵，利用马尔可夫模型对上海市中心城区土地利用空间演变过程进行了模拟分析和定量预测研究。  相似文献   

马尔可夫预测法与Excel——利用Excel的"规划求解"工具解决马尔可夫预测的计算     

郁菁 《重庆职业技术学院学报》2007,16(4):158-159,163

马尔柯夫预测法在市场占有率、市场销售状况、期望利润预测中有着广泛的应用,但其计算过程比较复杂,手工计算难以完成。在EXCEL中,利用规划求解工具可以实现马尔柯夫预测法的全部计算,不仅操作简便,而且可以大大提高预测的效率和精度。  相似文献   

On-line estimation of concentration parameters in fermentation processes     

Xiong ZH  Huang GH  Shao HH 《Journal of Zhejiang University. Science. B》2005,6(6):530-534

INTRODUCTION Saccharomycete, closely linked with human life, is the only microbe that has been utilized to the extent of over a million tons in the world, and is one of the modelled biological bacteria mostly used in modern genetic engineering. Since there are no effective online instruments for measuring the production or resultant concentration, which is a very important quality index in fermentation process, soft sensors (Martin, 1997; Tham et al., 1991; Assis and Filho, 2000; Salgad…  相似文献   

Teaching Undergraduate Mathematics on the Internet     

Johann?EngelbrechtEmail author  Ansie?Harding 《Educational Studies in Mathematics》2005,60(2):253-266

This is Part 2 of a two-part study of how APOS theory may be used to provide cognitive explanations of how students and mathematicians might think about the concept of infinity. We discuss infinite processes, describe how the mental mechanisms of interiorization and encapsulation can be used to conceive of an infinite process as a completed totality, explain the relationship between infinite processes and the objects that may result from them, and apply our analyses to certain mathematical issues related to infinity.  相似文献   

Addressing the Need for Management Processes for Higher Education Accreditation     

Linda L. Brennan  Walter W. Austin 《Innovative Higher Education》2003,28(1):49-62

The accreditation standards of the Association to Advance Collegiate Schools of Business (AACSB International) ask business schools to describe consistent processes that provide for operational consistency and continuous improvement in support of the schools' stated missions. Such practices are beneficial to all institutions of higher education seeking accreditation or reaffirmation. This article addresses the identification of requisite processes, describes an approach for defining them, and suggests a format for documenting their essential elements. We discuss the value of quality management practices to higher education and present caveats and considerations for successfully implementing this methodology.  相似文献