面向中文科技文献非结构化摘要的知识元表示与抽取研究——基于知识元本体理论     

郑梦悦  秦春秀  马续补 《情报理论与实践》2020,43(2):157-163

[目的/意义]近年来,科技文献资源呈爆炸性增长,海量科技文献中依旧存在大量非结构化摘要。非结构化摘要一方面不利于学者阅读与理解;另一方面不利于对摘要内部信息进行知识的自动化抽取和相应的检索。研究科技文献非结构化摘要的知识表示模型及其自动化抽取方法,对学者快速阅读和机器自动化处理具有重要意义。[方法/过程]文章在分析科技文献非结构化摘要结构的基础上,结合知识元本体理论,构建了一个面向科技文献非结构化摘要的知识元本体模型。通过分析非结构化摘要的写作特征,将文本按句子级划分为目的、方法、结果或结论三个要素,统计每个要素句中的线索词、句型和位置,建立相关规则库,根据本体模型和规则库构建相关抽取算法。最后,下载《计算机技术与发展》中的部分文献进行实验。[结果/结论]通过增加句型集和线索词集,完善了非结构化摘要的要素,构建了非结构化摘要知识元本体模型。实验结果表明,根据本文提出的模型能有效地对非结构化摘要中的知识元进行抽取。[局限]实验的不足之处是需要人工对摘要中的句型和线索词进行归纳总结。  相似文献   

Assessment of attention in school children: teachers' ratings related to tests of attention     

Timothy C. Papadopoulos  J. P. Das  H. M. Nelly Kodero  Veronica Solomon 《欧洲特需教育杂志》2013,28(1):15-32

The paper provides (1) a teacher-administered rating instrument for inattention without confounding the rating with hyperactivity and conduct disorder, and (2) evidence that the ratings correlate with the scores obtained from cognitive tests of attention. In Study I, the first objective was to investigate the construct validity and the inter-rater reliability of the Attention Checklist (ACL) by factor analysing the teacher ratings of 110 Grade 4 children, obtained by using the ACL. The second objective was to investigate the predictive validity of the ACL by examining the relationship between the scores obtained for the participants from teachers' ratings using the ACL and the scores obtained by participants in the lab-type attention tests. The results of factor analysis showed that a single factor labelled ‘inattention’ underlies the 12 items in the ACL. Examining the differences in performance on attention tests, the ‘low attention’ children as rated by the teachers on the ACL scored lower than the ‘high attention’ children on the objective tests of attention. These findings were replicated in Study II, which was conducted to test further the construct validity and predictive validity of the ACL. This time, only those two tests (Auditory Attention and Visual Attention) that had shown relatively poor discrimination between the high and low attention groups in Study I were, again, administered to another cohort of 97 Grade 4 children, as it was our intention to further challenge the reliability of the ACL. Overall, the results of both studies suggest that comprehensive assessment of attention skills should include both ACL and objective measures of selective attention.  相似文献   

激发学生认知心理之网页设计的视觉效应     

易霜  曾暇  黄云 《教育技术导刊》2010,9(2):187-189

从学生进行网上学习的心理出发,分析如何使用更好的视觉设计,激发学生的学习需求,引导学生高效学习。  相似文献   

关于Visual FoxPro教学的思考     

林向宝 《襄樊职业技术学院学报》2007,6(4):95-96

结合教学实践,阐述对Visual FoxPro教学的思考,探讨如何改进教学思路,合理进行教学内容和实践环节的组织和安排,更快地提高高等院校计算机基础课程的教学水平。  相似文献   

基于Visual C + +的北京奥运会游泳项目成绩预测方法          下载免费PDF全文

何江海 《武汉体育学院学报》2007,41(6):63-65,84

采用了一种简便易用、通用性强的数据插值算法，以历届奥运会成绩数据为基础，以灰色理论分析方法为理论依据，对2008年北京奥运会游泳成绩做出了预测。对模型化的算法采用计算机编程方式，并提供可视化界面，大大减少了冗余复杂的数据计算，只需录入历年成绩，程序本身就可自动算出北京奥运会的该项目成绩预测值，极大方便了此预测算法的使用。  相似文献   

“Visual Basic程序设计”的“慕课化”探讨     

冯建国  张正贤 《科教文汇》2015,(17)

慕课一出现就受到广泛关注,被视为教育史上的一场数字海啸。当前,国内只有为数不多的高校开设了慕课课程。虽然对慕课的讨论如火如荼,但大规模的慕课并未真正全面展开。本文以对慕课的认识为基础,讨论了“Visual Basic程序设计”“慕课化”的必要性及可行性,并从课程体系构建、平台选择和团队建设三个方面做了初步设计,以提高学生的计算机水平。  相似文献   

‘The Product of the Town Itself’: Community Representation and the Stanley Cup Hockey Challenges of the Kenora Thistles, 1903–1907     

Stacy L. Lorenz 《国际体育史杂志》2015,32(17):2078-2106

This case study of community representation in Canadian hockey analyzes media accounts of four Stanley Cup hockey series played by the Kenora Thistles between 1903 and 1907. It examines newspaper coverage of the Thistles hockey club as it moved from an amateur team represented by players with roots in their home community to a professional aggregation that included paid imports from outside the town. The essay explores the relationship between sport and civic identity during a key time of change in top-level hockey. The dominant narrative surrounding the Thistles portrayed players as true ‘members’ of the town of Kenora. Even after the turn to professionalism, narratives of small-town, amateur purity and close connections to the community characterized coverage of the Thistles as they pursued the Stanley Cup. At the same time, however, a growing emphasis on securing the personnel that could ensure victory led to praise for the club’s efforts to please its supporters, or ‘customers’. As a result, this study of notions of civic representation in early hockey provides insight into the process by which sports teams came to be viewed as symbolic representatives of their communities.  相似文献   

《司岗里》传说:佤族走失文明的历史再现     

袁智中 《河池学院学报》2011,31(4):124-128

佤族没有文字,其历史文化均以口耳相传的方式传承下来,这为佤族历史文化的解读提供了诸多可能。佤族创世神话《司岗里》流传于整个阿佤山地带,乃至缅甸、泰国、老挝、柬埔寨、印度,内容不仅涵盖了宇宙、人类及万物的起源,还包括了佤族及其先祖数千年颠沛流离的迁徙史。当我们将这部神话传说与失落千年的古滇国文化、夜郎文化、哀牢文化和石佛洞文化进行链接的时候,佤族那段走失的文明便会以另一种方式再现。  相似文献   

表象训练在“二十四式”教学中的应用研究     

封慧歆 《廊坊师范学院学报(自然科学版)》2011,11(5):100-101,110

针对武术项目教学"三多"的问题,以人体生理学运动技能形成的过程为切入点,在传统的"二十四式"教学方法的基础上采用对比实验法、数理统计法、文献资料等研究方法,对表象训练法的教学效果进行研究。实验证明这种教学方法能激发学生的学习主观想象力,达到更好的教学效果。  相似文献   

论安·塞克斯顿诗歌《灰姑娘》中的重复     

尹青  闵西鸿  卞一多 《佳木斯教育学院学报》2015,(5)

美国现代作家塞克斯顿在其诗歌《灰姑娘》中运用类像和怪异两种重复方式对原格林童话进行了成功的"变形",揭示了后现代社会的表征危机以及消费主义文化。  相似文献