FARMER: A novel approach to file access correlation mining and evaluation reference model

File semantic has proven effective in optimizing large scale distributed file system. As a consequence of the elaborate and rich I/O interfaces between upper layer applications and file systems, file system can provide useful and insightful information about semantic. Hence, file semantic mining has become an increasingly important practice in both engineering and research community. Unfortunately, it is a challenge to exploit file semantic knowledge because a variety of factors could affect this information exploration process. Even worse, the challenges are exacerbated due to the intricate interdependency between these factors, and make it difficult to fully exploit the potentially important correlation among various semantic knowledges. This article proposes a file access correlation miming and evaluation reference (FARMER) model, where file is treated as a multivariate vector space, and each item within the vector corresponds a separate factor of the given file. The selection of factor depends on the application, examples of factors are file path, creator and executing program. If one particular factor occurs in both files, its value is non-zero. It is clear that the extent of inter-file relationships can be measured based on the likeness of their factor values in the semantic vectors. Benefit from this model, FARMER represents files as structured vectors of identifiers, and basic vector operations can be leveraged to quantify file correlation between two file vectors. FARMER model leverages linear regression model to estimate the strength of the relationship between file correlation and a set of influencing factors so that the “bad knowledge” can be filtered out. To demonstrate the ability of new FARMER model, FARMER is incorporated into a real large-scale object-based storage system as a case study to dynamically infer file correlations. In addition FARMER-enabled optimize service for metadata prefetching algorithm and object data layout algorithm is implemented. Experimental results show that is FARMER-enabled prefetching algorithm is shown to reduce the metadata operations latency by approximately 30%–40% when compared to a state-of-the-art metadata prefetching algorithm and a commonly used replacement policy.     

Searching high gray scale FPD scanning matrix based on PSO

With the increase of gray scale and flat panel display (FPD) size, subspace bitwise scanning strategy can be replaced traditional scanning method to cut down frame frequency. However, the direct searching strategy (DSS) becomes unfeasible to obtain corresponding high gray scale scanning matrix. Thus, particle swarm optimization (PSO) is introduced to accelerate searching for high gray scale weights scanning matrix (WSM) with its parallelism and global optimization feature. Finally a WSM of 256 gray scales is found out successfully with Matlab, which both gray linearity and scanning efficiency are satisfied.     

基于DEA超效率模型的中国985工程大学效率评价——整合中国大学评价和网大大学排行榜的改进模型

选取34所985一期工程高校为决策单位（DMU）,整合中国大学评价和网大大学排行榜构建指标体系,运用EMS软件进行超效率数据包络分析（SE-DEA）,得出34所高校的超效率得分并进行效率排序,进一步展开松弛变量分析（包括投入冗余指标和产出不足指标分析）,从而对大学绩效的改进和教育资源的优化配置提出政策建议,并对中国高等教育的现有形势和未来发展做总结和展望。     

3.11日本大地震后中国中学生共情与助人关系的研究:文化接触的调节作用

本研究以2011年春季发生的日本地震和云南地震为背景,对汶川地震灾区和非灾区的中学生对地震受灾民众的态度进行比较,发现:1)汶川地震灾区和非灾区的中学生帮助云南受灾民众的意愿都显著高于帮助日本受灾民众的意愿;2)汶川地震灾区的中学生状态共情的程度和帮助云南受灾民众的意愿都显著高于非灾区的中学生,但二者帮助日本受灾民众的意愿差异不显著;3)对日本文化的接触程度调节共情与助人意愿的关系,对日本文化接触越多,帮助日本受灾民众的可能性越大.     

培智学校社区课堂教学模式的构建与探索

基于宁波市达敏学校社区课堂教学的行动研究,本文系统地探讨了智力障碍学生的 社区课堂教学模式的构建,并从实践成效对该模式的可行性、有效性进行了论述,以期提供 培智学校课堂教学新思路,以适应当今世界特殊教育发展的趋势,使学生“学以致用”,融入 社会,提高生活质量.     

艺术类大学生情绪调节策略特点及其与人格、自动思维关系研究

采用问卷法对351名艺术类大学生进行调查,探讨艺术类大学生情绪调节策略特点及其与人格、自动思维的相互关系.结果表明:(1)艺术类大学生在情绪调节策略使用上性别差异不显著;在愤怒和悲伤两种消极情绪调节策略中,注意转移策略最多.前者的情境修正策略最少,后者的人际支持策略最少.表达抑制策略在两种情绪调节中的使用均较少;在快乐情绪调节策略中,支持分享策略使用最多,表达抑制最少.(2)人格特质P、N和L及自动思维与情绪调节策略关系密切;(3)人格特质P,或通过自动思维对情绪调节策略有直接和间接效应.     

小学班主任阅读状况的调查研究

以上海市八个区县22所小学522名小学班主任为对象,调查了书籍阅读、杂志阅读、报纸阅读、网络阅读的状况.结果发现,小学班主任的阅读有一定数量和丰富性,但还需进一步提升,尤其需加强专业性导向.     

关于基础教育国际化的几个问题

教育国际化成为当前理论和实践热点话题,不同于高等教育国际化的是,基础教育的国际化特别需要讨论和澄清一些基本问题,如基础教育是否必须国际化,基础教育国际化与民族化的关系,基础教育与国际接轨问题,国际化人才培养与基础教育关系问题等.     

广州市小学六年级学生教育补习情况研究——基于学生家长的视角

本文通过对广州市初中一年级学生家长的问卷调查,了解学生在六年级时参加教育补习的情况.结果发现,班级排名中等以上的学生参加补习的比例更大;家长让班级排名靠前的学生参加补习是为了增加他们的竞争优势,因而这些学生更倾向于选择竞赛类科目补习;班级排名、家长动机和补习费用是影响家长对教育补习效果主观评价的重要因素;对于班级排名靠前的学生而言,教育补习并不会对他们的排名产生明显的影响.     

儿童哲学研究的缘起与现状考察

儿童哲学的诞生缘于20世纪60年代对话哲学与"批判性思维"运动的兴起.我国有近三十年的儿童哲学研究,相比于前二十年的研究,近十年的研究显得更为"理智",在引进、介绍、实验的同时,研究者开始对儿童哲学研究的方向和内容进行审视,寻找儿童哲学与中国教育改革的契合之路.