Advanced,Analytic, Automated (AAA) Measurement of Engagement During Learning     

Sidney D'Mello  Ed Dieterle  Angela Duckworth 《教育心理学家》2017,52(2):104-123

It is generally acknowledged that engagement plays a critical role in learning. Unfortunately, the study of engagement has been stymied by a lack of valid and efficient measures. We introduce the advanced, analytic, and automated (AAA) approach to measure engagement at fine-grained temporal resolutions. The AAA measurement approach is grounded in embodied theories of cognition and affect, which advocate a close coupling between thought and action. It uses machine-learned computational models to automatically infer mental states associated with engagement (e.g., interest, flow) from machine-readable behavioral and physiological signals (e.g., facial expressions, eye tracking, click-stream data) and from aspects of the environmental context. We present 15 case studies that illustrate the potential of the AAA approach for measuring ensgagement in digital learning environments. We discuss strengths and weaknesses of the AAA approach, concluding that it has significant promise to catalyze engagement research.  相似文献   

Optimal design for manipulation of random consensus over discrete information in networked systems     

Sidney Roberto Carvalho  Ubirajara Franco Moreno 《Journal of The Franklin Institute》2021,358(9):5039-5072

In distributed and cooperative systems, the network structure is determinant to the success of the strategy adopted to solve complex tasks. Those systems are primarily governed by consensus protocols whose convergence is intrinsically dependent on the network topology. Most of the consensus algorithms deal with continuous values and perform average-based strategies to reach cohesion over the exchanged information. However, many problems demand distributed consensus over countable values, that cannot be handled by traditional protocols. In such a context, this work presents an approach based on semidefinite programming to design the optimal weights of a network adjacency matrix, in order to control the convergence of a distributed random consensus protocol for variables at the discrete-space domain, based on the voter model. As a second contribution, this work uses Markov theory and the biological inspiration of epidemics to find out a dynamical spreading model that can predict the information diffusion over this discrete consensus protocol. Also, convergence properties and equilibrium points of the proposed model are presented regarding the network topology. Finally, extensive numerical simulations evaluate the effectiveness of the proposed consensus algorithm, its spreading model, and the approach for optimal weight design.  相似文献   

Two-parameter characterization of low cycle, hysteretic fatigue data     

Sheng Bao  Wei-liang Jin  Sidney A. Guralnick  Thomas Erber 《浙江大学学报(A卷英文版)》2010,11(6):449-454

The aim of this research is to characterize the development of fatigue damage by means of stress-strain hysteresis. Experiments were conducted on 14 specimens made of cold-finished unannealed AISI 1018 steel. Results demonstrate that the mechanical hysteresis loop areas, when plotted as a function of the number of loading cycles, show significant variations and demonstrate the three principal stages concerning the progress of the fatigue failure--initial accommodation, accretion of damage and terminal failure. These three stages of fatigue are marked by the transitions at cycles N2 and N3. Experimental results show that although fatigue life Nf ranges from 2644 cycles to 108 992 cycles, the ratios of N2/Nf and N3/Nf tend to be stable： N2/Nf=I 0.7%, N3/Nf=91.3%.  相似文献   

关于吉林省图书馆联盟开展网上联合参考咨询服务的思考   总被引：1，自引：0，他引：1  

杨柏林 《图书馆学研究》2010,(4)

从吉林省图书馆联盟联合网上参考咨询服务的提出,到构建省内三大系统图书馆网上参考咨询服务系统的过程作了阐述,并对未来工作进行了展望。  相似文献   

Jewish Identity In A Changing World An Historical Survey     

Sidney B. Hoenig 《Journal of Jewish Education》2013,79(4):39-48

What are the basic variables that one ought to consider when attempting to describe possible trends in supplementary Jewish education in the United States during the next decade? They should include the following: Birth rate in Jewish families which are but marginally associated with various Jewish causes; the interest of these families in Jewish life and religion; identification with Israel and Israel-related causes; general climate for Jewish education in the communities in which these families reside; rate of growth in tuition requirements for day school enrollment; and comparative educational achievement in day schools and supplementary schools.  相似文献   

教学质量监控与评估体系的构建与实施     

丁百林  崔光成  刘天宝 《当代教育论坛》2008,(32)

提高教学质量是高等学校永恒的主题和主旋律,教育部对高校进行五年一轮的"评估"旨在不断提升高校的教育教学水平.提高教育教学质量,构建与实施教学质量监控与评估体系,应贯穿于教学管理的全过程,并不断地完善与优化,使之更加科学化、规范化,形成可持续的长效发展机制,以实现高校的育人宗旨与培养目标.  相似文献   

Preface     

Richard S. Johnson  Dennis P. Jones  Wayne R. Kirschling  G. Ben Lawrence  Sidney S. Micek  Allan L. Service  James R. Topping  Robert A. Wallhaus 《ASHE Higher Education Report》1977,6(4):ii-iii

  相似文献   

国有资产管理创新的路径探索   总被引：1，自引：0，他引：1  

刘柏林 《科技创业月刊》2010,23(2):77-78

国有经济在我国规模颇大,在整个国民经济的发展中起到了主力军的作用。创新国有资产管理,探索建立适应社会主义市场经济运行的国有经济体系,是我国经济体制改革的中心环节。概括了我国现行国有资产管理模式的基本弊端,围绕管理模式的基本弊端的分析,总结出国有资产新的管理模式。  相似文献   

基于纯声子散射模型的纳米薄膜热传导分析     

张士元  郑百林  贺鹏飞 《福建工程学院学报》2010,8(4)

起粘结作用的薄膜结构厚度达到纳米尺度时,应用由微尺度观点建立的非傅立叶热传导模型分析其性能.文章采用纯声子散射模型分析绝缘薄膜结构的温度场和热应力,并与用在宏观尺度下的傅立叶热传导模型所得结果进行比较,同时研究绝缘薄膜结构热物理性能参数对温度场和热应力的影响.研究表明:采用纯声子散射模型分析结果与傅立叶热传导模型所得结果有明显区别,绝缘薄膜结构熟物理性能参数对温度场和热应力也有显著影响.  相似文献   

Towards an expanded cognitive developmental science understanding of human teaching / Hacia un conocimiento ampliado de la enseñanza humana basada en la ciencia del desarrollo cognitivo     

Sidney Strauss 《Infancia y Aprendizaje》2018,41(3):447-490

Teaching is one of nature’s remarkable inventions. Despite over two millennia of academic discussion about teaching, it remains in need of a broad scientific footing. The cognitive and developmental sciences, writ large, are candidates for such a footing. The purpose of this article is to go beyond teaching as knowledge transmission and present an expanded cognitive developmental account of teaching’s remarkable complexity. A minimalist and maximalist approach for describing teaching are presented, with a preference offered for the latter. It can serve as a map for backward engineering so as to get to the origins and developmental trajectories of the map of teaching’s components. An expanded mind-to-mind coupling version of the complexity of normative adult teaching is presented which includes stage-setting with emotion-, motivation- and mind-reading, organizing teaching sessions, scaffolding, detecting knowledge gaps and intervening by knowledge transmission strategies intended to reduce the gaps. In a backward engineering move, research is presented on infants’ abilities for some of what is presented for adults. Teaching is also prosocial, with heart-to-heart coupling. It is inextricably intertwined with teaching, and is another part of teaching’s complexity. Teaching’s prosociality is analysed via the economic concept of non-rivalry. It is shown that teaching is a form of helping behaviour but is not altruistic. Directions for further work in this maximalist approach to the scientific study of teaching are presented.  相似文献