Librarians and Open Government Data: Opening Possibilities     

Suzanne R. Townsdin 《Public Services Quarterly》2018,14(1):65-74

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科学过程技能的性别差异     

罗国忠 《教育科学》2006,22(6):9-10

本研究运用表现性评价方式评价科学过程技能,结果发现男女学生的总体科学过程技能不存在差异,但除找出变量之外,其他各过程技能均存在差异。最后,针对这种性别差异讨论了相应的教学和评价建议。  相似文献   

西非—中国航线原油远洋运输方案优化     

周晓玲  王震  肖文涛  许国栋 《上海海事大学学报》2017,38(1):31-36

为满足西非—中国航线的原油远洋运输方案的时效性要求,以油船运费、滞期费和靠港费之和最低为目标函数,以供需平衡、港口水深和装卸时间为约束条件,求解一个包含船型组合、装/卸港航线组合、油种替换、批次拆分等多决策变量的大规模NP(Non-deterministic Polynomial)难问题.采用差分进化算法进行求解.为提高求解速度,采用双染色体编码、基因组压缩编码、船型与拼装变量隐式联锁、配送油种比对解码等方法,进行供需平衡约束,降低问题规模,并缩减问题的"劣质解空间",提高差分进化算法的搜索时效.利用提出的算法对中国石化某月度西非—中国航线实际原油远洋运输方案进行优化,得到优化方案平均用时约5 min,可节约运费50余万美元.  相似文献   

Accounting for quality: arts evaluation,public value and the case of “Culture counts”     

Abigail Gilmore  Hilary Glow  Katya Johanson 《Cultural Trends》2017,26(4):282-294

Arts policy has a longstanding relationship with the concept of “quality” and the ways in which organisations measure, evaluate and account for it. Culture Counts, an evaluation system and digital platform, compiles data from standardised evaluation surveys of different stakeholder groups – organisations, audiences, critics, funders and peers – and provides the means to compare and triangulate data in an accessible format. As a result, it claims to provide a more effective, democratic tool for quality measurement of art, which demonstrates the public value of funding [Department of Culture and the Arts, & Knell, J. (2014). Public value measurement framework: Measuring the quality of the arts. Perth: Department of Culture and the Arts.]. Through qualitative research with two consortia of organisations involved in Culture Counts pilot projects in Manchester, England and Victoria, Australia, we explore these claims, comparing the reception and promotion of the system in both countries and considering its potential incorporation into policy assessment frameworks and adoption within arts organisations’ existing evaluation capacities.  相似文献   

Analysis of single comments left for bioRxiv preprints till September 2019     

Mario Mali ki  Joseph Costello  Juan Pablo Alperin  Lauren A. Maggio 《Biochemia medica : ?asopis Hrvatskoga dru?tva medicinskih biokemi?ara / HDMB》2021,31(2)

IntroductionWhile early commenting on studies is seen as one of the advantages of preprints, the type of such comments, and the people who post them, have not been systematically explored.Materials and methodsWe analysed comments posted between 21 May 2015 and 9 September 2019 for 1983 bioRxiv preprints that received only one comment on the bioRxiv website. The comment types were classified by three coders independently, with all differences resolved by consensus.ResultsOur analysis showed that 69% of comments were posted by non-authors (N = 1366), and 31% by the preprints’ authors themselves (N = 617). Twelve percent of non-author comments (N = 168) were full review reports traditionally found during journal review, while the rest most commonly contained praises (N = 577, 42%), suggestions (N = 399, 29%), or criticisms (N = 226, 17%). Authors’ comments most commonly contained publication status updates (N = 354, 57%), additional study information (N = 158, 26%), or solicited feedback for the preprints (N = 65, 11%).ConclusionsOur results indicate that comments posted for bioRxiv preprints may have potential benefits for both the public and the scholarly community. Further research is needed to measure the direct impact of these comments on comments made by journal peer reviewers, subsequent preprint versions or journal publications.  相似文献   

A first assignment to create student buy‐in in an introductory business statistics course     

Daria Newfeld 《Teaching Statistics》2016,38(3):87-90

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以科研促教改,积极创建优质精品课程     

杨立元 《唐山学院学报》2011,24(2):97-99,102

介绍了唐山师范学院中文系文艺学教研室以科研为先导,以教改为基础,积极创建优质精品课程的先进做法和经验.  相似文献   

我国运动休闲产业联动机制创新发展研究     

冯俊祥 《广州体育学院学报》2017,37(3):59-61

在世界市场经济的语境中,联动机制是在不同企业乃至产业间的互动协调机制,它使得企业或者产业间的合作更加高效,从而可以节约资源,提高产品的生产效益和专业化程度.运动休闲产业涉及的企业种类和产业众多,内部产业链结构复杂,因此建立产业联动机制对于运动休闲产业发展来讲更加迫切.我国运动休闲产业在前期的意识转变、产业结构调整和市场准备等方面都取得了重要进展,但目前处于发展的瓶颈期.构建多种机制交织的运动休闲产业联动机制是冲破瓶颈期,取得运动休闲产业发展的必要条件.  相似文献   

Multimodal data as a means to understand the learning experience     

《International Journal of Information Management》2019

Most work in the design of learning technology uses click-streams as their primary data source for modelling & predicting learning behaviour. In this paper we set out to quantify what, if any, advantages do physiological sensing techniques provide for the design of learning technologies. We conducted a lab study with 251 game sessions and 17 users focusing on skill development (i.e., user's ability to master complex tasks). We collected click-stream data, as well as eye-tracking, electroencephalography (EEG), video, and wristband data during the experiment. Our analysis shows that traditional click-stream models achieve 39% error rate in predicting learning performance (and 18% when we perform feature selection), while for fused multimodal the error drops up to 6%. Our work highlights the limitations of standalone click-stream models, and quantifies the expected benefits of using a variety of multimodal data coming from physiological sensing. Our findings help shape the future of learning technology research by pointing out the substantial benefits of physiological sensing.  相似文献   

中文电子病历的分词及实体识别研究   总被引：1，自引：0，他引：1  

王若佳  赵常煜  王继民 《图书情报工作》2019,63(2):34-42

[目的/意义]健康医疗大数据是我国重要的基础性战略资源，本研究对中文电子病历分词与实体识别的探讨与实证较好地完成了医疗数据的信息抽取任务，对今后医疗大数据在语义层面的应用发展具有重要意义。[方法/过程]本研究首先融合权威词表、官方标准、健康网站数据及其他医学补充词库构建了词语数量级达到10万的医学词表；然后对电子病历的字段进行分词，对比了jieba工具、导入词典后的jieba、无监督学习及AC自动机4种模型的分词效果；最后，以自动分词和人工标注结果为语料，实现基于条件随机场的电子病历实体识别研究，并比较不同实体类别以及不同文本特征下的实体识别效果，选出最优模板。[结果/结论]分词结果显示，AC自动机的效果最好，F值可达82%；实体识别结果表明，"检查"和"疾病"实体的识别效果最好，而"症状"的识别效果不太理想。  相似文献