基于二次匹配的指纹识别方法的研究

在前人的研究成果的基础上,对指纹识别的各个过程,包括指纹图像预处理、指纹图像特征点提取、指纹匹配等相关算法进行了研究。特别是在指纹图像匹配阶段,为了得到较好的效果,采用了两次匹配的过程,第一次匹配使用传统的基于特征点的匹配方法,能够迅速地去除差距很大的图片和效果较好的匹配图片,而第二次匹配使用了基于可变界限盒的串距离匹配方法,这种方法能够更好地适应指纹图像的非线性形变等情况。通过这样的两次匹配,能够得到比较满意的匹配结果。     

重庆市制造业的绿色经济增长核算:2001—2010

基于生产前沿理论的绿色经济增长核算模型,不仅将技术无效率和环境代价纳入了分析框架,而且还与"物质平衡思路"一致;该模型将绿色经济增长的源泉分解为环境约束下的技术进步、技术效率变化和资本深化3大部分。对重庆市27个制造行业的经验分析结论表明:经济增长中普遍存在着技术无效率现象,但50%以上行业的技术效率都得到了改善或维持不变;资本深化是经济增长的主要源泉,而技术进步主导的全要素生产率变动在其中的贡献相对较小;技术进步是引致全要素生产率增长的主要原因。为充分发挥重庆市制造业可持续发展潜力,后续发展中必须转变经济发展方式,在环境约束下走技术进步和技术效率改善的绿色全要素生产率增长之路。     

信息检索中模式匹配算法的分析

串的模式匹配是信息检索中的一个热点.文章介绍了模式匹配的概念,分析了串模式匹配中的BF算法和KMP算法,并对KMP算法进行了改进.实验结果表明:改进的KMP算法使信息检索具有更快的响应速度.参考文献5.     

Time spent on the Internet by multicultural adolescents in Korea

This study analysed The 8th Online Survey of Adolescent Health and Behaviour in 2012, which is a government-approved statistical survey of Internet use and patterns in Korea. We conducted a propensity score matching (PSM) to control for economic status differences between monocultural and multicultural families and an ANOVA to estimate the effects of multicultural family status, adolescents’ gender, school grades, locality, and parents’ academic background on adolescents’ Internet use (for studying and entertainment). The study revealed the following: with regard to Internet use patterns, adolescents from both monocultural and multicultural families selected gaming as their first choice, followed by studying and data searching. Furthermore, main and interaction effects of independent variables on adolescents’ time spent on the Internet for studying were not significant. However, the interaction effects of multicultural family status and mothers’ academic background on adolescents’ time spent on the Internet for entertainment were statistically significant. Specifically, adolescents’ time spent on the Internet for entertainment was higher in multicultural families with mothers whose education level was lower than middle school. Finally, we suggested that the government should provide full support to less educated mothers in multicultural families for effectively and constructively controlling their children’s Internet use and teaching it to them.     

纯电动汽车动力系统参数匹配与优化研究

基于某款纯电动汽车整车性能要求进行了关键部件的参数匹配,通过搭建CRUISE模型在NEDC工况下的仿真验证了参数匹配的合理性。基于ISIGHT和CRUISE联合仿真,以续驶里程为优化目标,以主减速比和动力电池的并联电池组数为优化变量,采用NSGA-II算法进行了优化分析,优化结果显示,此款纯电动汽车续驶里程得到了有效提升,且动力性也满足预定要求。     

网络环境下高校图书馆的创新模式

针对网络技术给高校图书馆传统模式带来的冲击，文章从图书馆的服务、管理、藏书地位及馆员角色转变的几个方面，对高校图书馆的创新发展进行客观理智的思考，并在新的层面上作一些探索。     

“匹配式”教学方法改革的实践效应

经过多年高职高专教学实践,本人探索出“学导式”与“加分法”相匹配的全新教学方式。本对此进行了比较详细的阐述。     

我国区域人才结构优化与产业结构升级的协调适配度评价研究

基于协同学理论,构建了区域人才结构优化与区域产业结构升级耦合的复合系统,将区域人才结构优化的4个时序环节与区域产业结构升级两个导向维度耦合对接提取复合系统序参量,形成协调适配度评价指标体系,采用功效函数法进行测算。以全国30个省市区域(除西藏外)为样本进行了协调适配度的实际测评,结果表明,各省市的协调适配度共可分为四种类型,且协调适配等级并不高。针对不同协调适配类型,对各省市提出未来改进和发展对策。     

Is academic tracking related to gains in learning competence? Using propensity score matching and differential item change functioning analysis for better understanding of tracking implications

This study analyzes gains in cognitive components of learning competence with respect to cohorts based on ability tracking in a Czech longitudinal study. Propensity score matching is used to form parallelized samples of academic and non-academic track students and to eliminate the effect of selective school intake. We applied regression models on the total scores to test for the overall track effect. Furthermore, we analyze scores and gains on the subscores and check for differential item functioning in Grade 6 and in change to Grade 9. While after 3 years, no significant difference between the two tracks was apparent in the total learning competence score, we did, however, find significant differences in some subscores and in the functioning of some items. We argue that item-level analysis is important for deeper understanding of the tracking implications and may provide the basis for more precise evidence-based decisions regarding the tracking policy.     

The Development and Design of a Framework to Match Mentees and Mentors Through a Systematic Review andThematic Analysis of Mentoring Programs Between 2000 and 2015

ABSTRACT

The need for longitudinal and holistic support of medical students throughout their training has led to the development of formal mentoring programs. Whilst success of formal mentoring programs has been attributed to (a) pairing mentees with trained and experienced mentors (matching), (b) the quality of mentoring interactions and (c) the presence of a nurturing environment, little attention has been attributed to establishing an effective matching process in medical school. We sought, in this review, to redress this gap within the context of matching medical students for mentoring. Modified PRISMA guidelines were followed to guide the review process. PubMed, ERIC, Cochrane Database, OVID and ScienceDirect databases were searched for articles on matching in medical schools and in allied health specialities published between 2000 and 2015.