Using an interactive platform to recognize the intersection of social and spatial inequalities     

Lisa Poling  Travis Weiland 《Teaching Statistics》2020,42(3):108-116

With the creation of interactive tasks that allow students to explore spatial ways of knowing in conjunction with their other ways of knowing the world, we create a space where students can make sense of information as they organize these new ideas into their already existing schema. Through the use of a Common Online Data Analysis Platform (CODAP) and data from Public Use Microdata Areas (PUMA), students can explore the communities in which they live and work, critically examining opportunities and challenges within a defined space.  相似文献   

Usage Comparison between an English-Language and a French-Language E-Monograph Collection in a Bilingual Canadian University     

Alain R. Lamothe 《International Information and Library Review》2020,52(2):139-160

Abstract

This article reports the results of a quantitative and systematic analysis comparing usage rates between English-language and French-language e-monograph titles at Laurentian University, Canada. Full-text viewings were collected as usage metrics. English-language e-monographs exhibited medium strength linear relationships between collection size and usage. On the other hand, French-language e-monographs exhibited weak linear relationships between collection size and usage. The French-language e-monograph collection experienced a higher rate of full-text use, relative to size. The cost-per-viewing ratio for the English-language e-monograph collection was higher than those that calculated for the French-language collection.  相似文献   

What do students gain from games? Dice games vs word problems     

Karsten Maurer  Lynette Hudiburgh  Lisa Werwinski 《Teaching Statistics》2020,42(2):41-46

Learning the fundamentals of probability and random variables can be a struggle for many students. Games by their nature require active participation and reward mastery, lending naturally to the framework of active learning. In this study, we designed and evaluated the efficacy of a lab activity using a game where strategy hinges on sums of dice to teach about linear combinations of independent random variables. We found that both activities lead to improved understandings of course concepts, but the dice game provided increased student engagement and interest.  相似文献   

上海市技术比较优势及其演变分析——基于上海市职务发明专利申请的统计分析   总被引：1，自引：0，他引：1  

俞文华  张俊燕 《中国青年科技》2007,(11):6-16

上海市是我国发明专利申请最活跃和技术创新能力最强的城市之一,充分发挥其技术比较优势,不仅有利于其进一步提升技术创新能力,而且也有利于其代表我国在全球科技竞争中占据制高点。本文在对上海职务发明专利申请进行分技术领域统计的基础上,首先对上海职务发明专利申请态势、技术领域分布及其在全国中的地位进行了分析,其次根据其不同技术领域的显性技术比较优势指数,对其技术比较优势及演变进行了研究,最后对上述分析结果的公共政策含义进行了初步探讨。  相似文献   

Subspace design of low-rank estimators for higher-order statistics     

Ivan Bradaric  Athina P. Petropulu  Konstantinos I. Diamantaras 《Journal of The Franklin Institute》2002,339(2):161-187

Higher-order statistics (HOS) are well known for their robustness to additive Gaussian noise and ability to preserve phase. HOS estimates, on the other hand, have been criticized for high complexity and the need for long data in order to maintain small variance. Since rank reduction offers a general principle for reduction of estimator variance and complexity, we consider the problem of designing low-rank estimators for HOS. We propose three methods for choosing the transformation matrix that reduces the mean-square error (MSE) associated with the low-rank HOS estimates. We also demonstrate the advantages of using low-rank third-order moment estimates for blind system estimation. Results indicate that the full rank MSE corresponding to some data length N can be attained by a low-rank estimator corresponding to a length significantly smaller than N.  相似文献   

从作者分析看我国情报学研究队伍的状况     

杨彩霞 《现代情报》2005,25(10):153-157

本文通过对1994～2003年我国情报学研究论文作者及其地区分布、系统分布、合著情况、高产作者、高产单位等进行分析，以揭示我国情报学研究队伍的现状，为我国情报学研究提供某一角度的数据参考。  相似文献   

我国5种自然科学期刊引文调查分析   总被引：1，自引：0，他引：1  

李贺  王佳飞  王惠翔 《现代情报》2007,27(3):2-3

运用文献计量学方法,对我国的自然科学5种核心期刊1994-2005年间所载论文的引文进行一次系统的调查与分析,从中寻找出我国自然科学研究论文引文的一般规律。  相似文献   

国内外信息行为博硕论文比较研究     

田丽丽  刘竟 《现代情报》2016,36(12):120-125

以信息行为领域的114篇国内博硕论文和124篇国外博硕论文为样本,从基本情况（学位层次、发表时间、所属机构、学科分布）、信息行为的主体和客体、信息行为的类型、高频关键词、研究方法、研究深度6个方面进行国内外比较研究。结果发现,国内外共同点主要有3点：信息行为主体、客体的广泛性和多样化;相对于其它类型的信息行为而言,信息搜寻行为研究占主导地位;总频次位于前3位的研究方法是调查法、统计分析法和访谈法。国内外主要不同之处在于学位层次、学科分布、信息行为的主体和客体类型、研究深度方面存在差异。最后,对国内未来有志于从事信息行为研究的博硕士研究生提出5条研究建议。  相似文献   

浅析管理统计在企业管理中的运用     

薛桂云 《科技与管理》2002,4(1):59-60

着重指出了管理统计在企业管理中应用的重要性，并对企业管理的发展进行了探讨，同时，结合企业管理的实际情况，阐述了管理统计在企业管理中运用的思路。  相似文献   

2005年《体育科学》的引文分析   总被引：2，自引：0，他引：2  

范丽雯  王玫  邴国强 《情报科学》2006,24(10):1512-1515,1536

通过对《体育科学》引文之引用文献、引用语种、引文类型、引文学科、引文作者等情况的分类统计分析，得出我国中文体育类核心期刊的现状及其呈现的数量特征和内在规律，以期对今后的学术研究提供参考。  相似文献