基于AHP的网格工作流服务资源配置的研究     

郑凯 《现代图书情报技术》2005,21(12):12-16

如何在海量的具有相同功能的网格服务中，为网格任务选择最合适的网格服务乃是实现服务资源优化配置的关键问题。层次分析法（AHP）是一种比较好的选择，因为它符合人的逻辑判断思维过程，能够解决多目标、多准则或无结构特性的复杂决策问题。因此本文借鉴在企业动态联盟伙伴选择机制中普遍采用的层次分析法，实现网格工作流服务资源的最优配置，从而满足用户的资源需求，达到网格服务资源的优化配置，提高网格工作流系统的性能。  相似文献   

Exploring learning and fit in the transition from higher education to the labour market: A systematic review     

《Educational Research Review》2017

The transition from higher education to the labour market is an important period for youngsters, characterised by extensive changes which act as triggers for learning. Furthermore, students’ educational background and the (in)congruence with their work context is important. Accordingly, the aim of this systematic review is to explore the role of learning and fit in the transition process. Results indicate that most emphasis is put on theoretical knowledge, communication, problem-solving, and learning skills. Although the perception on what has to be learned differs for employers, educators, and graduates, each group valued generic competences most. Results show that transfer can be experienced in three ways and the need for learning at work is stressed. Concerning fit, four types of fit are distinguished: vertical, horizontal, competence, and person-environment fit. Several personal background characteristics are shown to influence fit and findings indicate that fit has an influence on career progress and personal resources.  相似文献   

Information resource orchestration during the COVID-19 pandemic: A study of community lockdowns in China     

《International Journal of Information Management》2020

The outbreak of the COVID-19 pandemic has created significant challenges for people worldwide. To combat the virus, one of the most dramatic measures was the lockdown of 4 billion people in what is believed to be the largest quasi-quarantine in human history. As a response to the call to study information behavior during a global health crisis, we adopted a resource orchestration perspective to investigate six Chinese families who survived the lockdown. We explored how elderly, young and middle-aged individuals and children resourced information and how they adapted their information behavior to emerging online technologies. Two information resource orchestration practices (information resourcing activities and information behavior adaptation activities) and three mechanisms (online emergence and convergence in community resilience, the overcoming of information flow impediments, and the application of absorptive capacity) were identified in the study.  相似文献   

Spontaneous spatial strategy use in learning from scientific text     

《Contemporary educational psychology》2017

Two studies explored the role of the spontaneous use of spatial note-taking strategies (i.e., creating maps and drawings) and spatial ability in learning from a scientific passage. In Study 1, college students read and took notes by hand on a 10-paragraph scientific passage about the human respiratory system. Students tended to use verbal strategies such as lists (on 48% of the paragraphs), outlines (29%) and running text (15%), but also used spatial strategies such as maps (28%) and drawings (11%). Regression analyses indicated that spatial ability and the use of spatial strategies (maps or drawings) significantly predicted learning outcomes, with spatial strategy use explaining additional variance beyond spatial ability. In Study 2, students read the same scientific passage and took notes either by hand on paper (paper group), by hand on a large whiteboard (whiteboard group), or on a laptop computer (computer group). A similar general pattern as Study 1 was found for the paper group, but this pattern was not found for the computer or whiteboard groups, suggesting that the relationships found in Study 1 might depend on the note-taking medium. Results also indicated that students in the paper and whiteboard groups spontaneously used more spatial strategies, whereas the computer group tended to use verbal strategies (i.e., words only), suggesting that different note-taking contexts encourage different strategies.  相似文献   

Exploring Verbal,Visual and Schematic Learners' Static and Dynamic Mental Images of Scientific Species and Processes in Relation to Their Spatial Ability     

Sulaiman M. Al-Balushi 《International Journal of Science Education》2013,35(3):460-489

The current study compared different learners’ static and dynamic mental images of unseen scientific species and processes in relation to their spatial ability. Learners were classified into verbal, visual and schematic. Dynamic images were classified into: appearing/disappearing, linear-movement, and rotation. Two types of scientific entities and their related processes were investigated: astronomical and microscopic. The sample included 79 female students from Grades 9 and 10. For the purpose of the study, three instruments were used. The Mental Images by Guided Imagery instrument was designed to investigate participants' visualization of static and dynamic mental images. The Water-Level Task was adopted to estimate participants' spatial ability. The Learning Styles Inventory was used to classify participants into verbal, visual and schematic learners. The research findings suggest that schematic learners outperformed verbal and visual learners in their spatial ability. They also outperformed them in their vividness of microscopic images; both micro-static and micro-dynamic images; especially in the case of appearing/disappearing images. The differences were not significant in the case of astronomical images. The results also indicate that appearing/disappearing images received the least vividness scores for all three types of learners.  相似文献   

用“远程学习圈理论”分析网络学习管理系统   总被引：4，自引：0，他引：4  

菅光宾  孙淑艳 《现代教育技术》2005,15(1):28-32,36

LMS 是网络教育和基于网络培训的支撑系统。本文首先介绍了两种对LMS 进行功能分类和评价的理论,然后通过借鉴“远程学习圈理论”提出对LMS 进行功能分析的框架,最后利用这个框架对三个知名的LMS 进行分析,旨在为 企业和学校引进LMS 时提供参考和借鉴。  相似文献   

卢文弨和李兆洛与江阴暨阳书院     

赵统 《南京晓庄学院学报》2006,22(5):111-117

暨阳书院设于江苏江阴,著名学者卢文弨和李兆洛曾先后担任院长,他们对暨阳书院做出了重要贡献,暨阳书院因他们而名声大振。  相似文献   

从新课标看自主学习     

任清敏 《安顺师范高等专科学校学报》2005,7(1):7-8

学习必须主动、独立、创新,培养实际能力.自主学习是指具有自觉的意识和反应的学习方式.自主阅读是自主学习的关键.总结能力是自主学习非常重要的一个方面.自主学习是指教学条件下的学生的高品质的学习.  相似文献   

加强高职新生英语教学衔接的思考     

胡海 《温州职业技术学院学报》2007,7(4):84-87

通过对高职新生英语学习过渡与衔接情况的研究,分析了高中和高职两个阶段的英语教学在教学目标、教学内容和教学模式上的差异。推进高职英语教学的自然过渡,合理地解决高职新生英语教学衔接问题,培养学生的学习策略,这对于帮助学生适应高职英语学习、提高语言交际能力有着重要的意义。  相似文献   

试论中学研究性学习的个体价值   总被引：1，自引：0，他引：1  

李淑杰 《江西师范大学学报(哲学社会科学版)》2003,36(3):122-124,128

研究性学习作为一种课题，引起了专家学者的积极讨论，在理论上给予了充分的重视。然而，研究性学习作为一门实实在在的课程，却没有引起人们足够的关注，在实践中得不到落实。当然，造成这种现状的原因是多种多样的。笔者认为，人们对研究性学习的教育价值，尤其是中学研究性学习的个体价值的认识不足是其中一个重要的原因。  相似文献