基于稀疏表示的人脸识别算法

近年来,人脸识别一直是计算机视觉和模式识别领域一个很热门研究课题。随着压缩感知理论的发展,稀疏表示已经成功应用于人脸识别。文章系统地综述了人脸识别的研究现状、系统,并重点介绍了基于稀疏表示的人脸识别算法及求解,最后对人脸识别算法存在的问题以及发展进行了展望。     

3DGIS在烟草农田管理中的应用及发展

伴随着计算机技术和GIS技术的发展,GIS技术在越来越多的行业中得到应用。介绍了三维地理信息系统（3DGIS）在烟草农田管理中的应用,展望了3DGIS在烟草农田管理中的应用前景,如结合GPS和RS技术,模拟烟草生长、烟草生产管理决策等,以提高烟草的产量。     

基于知识元的文物图像资源细粒度知识表示方法研究

【目的/意义】文物图像资源日益成为数字人文基础设施建设的重要内容,为了克服存在于图像资源内容与 形式上的“语义鸿沟”对其开发利用产生的消极影响,有必要面向文物图像资源底层视觉特征与高层语义特征的精 细化映射与细粒度知识表示进行相关研究。【方法/过程】本文在分析文物图像资源知识表示需求与表示策略的基 础上,提出了基于知识元构造的文物图像资源细粒度知识表示模型。在模型设计的基础上,以著名绘画文物《历代 帝王图卷》为例,阐述了面向文物图像资源细粒度表示需求进行知识元提取、构造与数据发布的具体流程。【结果/ 结论】实验结果表明,本文提出的基于知识元的文物图像资源细粒度知识表示方法能够在图像底层视觉特征与高 层语义特征之间建立有效的语义映射关系,并通过与外部知识库的数据关联实现与开放关联数据网络的深度融 合。【创新/局限】本文从知识元角度出发,提出了文物图像资源的细粒度知识表示方法,在未来的研究中还需对文 物图像知识元的自动提取以及基于知识元的图像资源知识发现方法进行更深入地探索。     

网络情境下高职生角色失调的问题表征和归因分析

高职生的角色心理在互联网时代具有特殊性。调查表明,网络情境下高职生主要存在三种角色失调现象：现实-网络角色间冲突、现实-网络角色不清、现实-网络角色延伸不当。主体角色薄弱、现实角色受阻是导致网络情境下高职生角色失调的主要原因。     

浅谈中职Visual Basic程序设计教学策略的优化

随着我国职业教育的发展,Visual Basic程序设计语言已经成为很多中职院校都开设的一门计算机课程。基于我国中等职业教育Visual Basic程序设计存在的诸多问题,笔者结合自身教学实践,分析了中职教育存在的薄弱环节,并进行实践和经验总结,对当前Visual Ba-sic程序设计语言的教学提出了一些可行性建议,探索了教学策略的优化途径,以期对中职教学有所帮助。     

National Sporting Pastimes,Spectacles of Sporting Otherness and American Imaginings, 1880–1920

This discussion focuses on how the rise of America's national sporting pastimes, during the period 1880–1920, was inextricably tied to the ambitions and outpourings of American print capitalism and a concomitant congealing of a sense of modern American nationhood. In examining this thematic, we explicate the manner in which American national sporting audiences during the period 1880–1920 were variously constituted through discourses of national and ethnic sporting difference or Otherness. Hence, we examine the popular representation of turn of the century rodeo practices (as narrated through the spectacle of the western showman William Frederick ‘Buffalo Bill’ Cody's Wild West show productions), the position of early-twentieth-century American baseball in relation to other sporting cultures (graphically depicted by Albert Goodwill, or A.G., Spalding's promotional publications, specifically the 1911 America's National Game) and the national and ethnic differences discerned within the global sporting landscape more generally (explicated within the 1919 National Geographic article ‘The Geography of Games’). These performances and representations of ethnic and national sporting Otherness played an important role in re-inscribing and legitimating the (White European American) normative core of American sport culture (as manifest within and through the dominant practices of playing and/or spectating of football, baseball and basketball).     

Teaching Assistants Talking

Local Authorities (LAs) in Britain traditionally employ Visual Impairment (VI) teams as integrative statutory Special Educational Needs and Inclusion (SENI) provision. Teaching Assistants (TAs) work alongside Qualified Teachers (QTs) in VI teams to support children and young people (CYP) with VI. The VI TA has a broad role in covering early years, primary, secondary and special school settings and their key duties can include implementing visual targets, providing sensory support, delivering touch typing lessons, to name a few. Based on systemic and work‐based learning theories, this article explores the learning stories of seven VI TAs who volunteered to participate in professional development focus group discussions between September 2014 and November 2015. The seven participants all work in the VI team of one LA in Cambridgeshire. The focus of the fortnightly focus group discussions were to explore the impact which eye conditions had on the education and learning of CYP. Participants were encouraged to engage in reflective writing about their new knowledge and how this may have changed their VI practice. Findings from qualitative data generated for analysis and interpretation demonstrated that most participants did improve their knowledge and understanding of specific eye conditions. Some participants benefited and changed their practice based on their newly acquired knowledge whereas some were not aware of any impact on their practice. Themes also highlighted constructive comments on how future professional learning for TAs can be improved. There are currently no mandatory training requirements for specialist VI TAs.     

表象练习对力量素质训练效果的影响

通过三项实验证明,表象练习可促进力量素质的训练效果;在暂时终止实际训练的消退时期,表象练习对防止已获得的力量素质消退的作用尤为突出.大量引证了国内、外心理和生理的基础研究资料,对表象练习的效果作了充分的理论分析.该研究的结果对拓展运动训练的方法和因各种主客观原因被迫停止训练的运动员的能力的保持都具有重要意义.     

论传统武术对个体心理因素的影响

文章运用文献资料和专家访谈等研究方法,从心理学、运动训练学等角度对传统武术运动与心理发展的关系及其影响进行分析、研究,结论认为:传统武术运动对个体的感知觉、表象、思维、记忆及意志等五个心理因素均有积极的影响。     

一种多元分层知识库在避碰决策支持系统中的应用

根据对避碰决策系统的特点及各类避碰知识的分析 ,建立起一种多元分层知识库体系结构 ,并对每一类知识分别采用了不同的知识表示方法和推理机制 ,从而促进知识表示的性能 ,提高知识推理的效率。