基于知识元的学术论文内容创新性智能化评价研究   总被引：1，自引：0，他引：1  

李贺  杜杏叶 《图书情报工作》2020,64(1):93-104

[目的/意义] 创新性是对学术论文质量最基本的要求，是学术论文的灵魂，是学术论文评价的核心。知识元是学术论文基本组成单元。基于知识元理论和机器学习相关理论与算法，从学术论文内容层面研究计算机如何智能化地进行创新性评价及其实现过程与方法。[方法/过程] 首先，构建学术论文的研究问题、理论、方法、结论4个知识元本体，接着提出基于知识元的学术论文创新性判断模型。其次，根据学术论文研究特点，构建理论与方法机器分类模型及知识元的抽取规则与抽取方法，建立规则库和知识语料库。最后，基于语义相似度计算方法，根据判断规则和相关权重对学术论文4个维度的创新性进行评分。[结果/结论] 基于知识元抽取的学术论文创新性评分系统的实证结果表明，该智能化评价方法具有一定的可行性，可为学术论文内容创新性智能化评价系统的最终实现提供方法借鉴。  相似文献   

初中体育“翻转课堂”教学策略分析     

朱小明 《当代体育科技》2020,(12):190-191

翻转课堂是当代教育理念下发展形成的一种新型教学方式,将其合理应用于我国初中体育教学较传统教学方式能够更好地满足当代学生的体育学习要求。但由于该教学理念在我国刚刚进入初期应用阶段,很多细节方面仍有待完善,因此,教师还应进行细致研究,加强新型教育工作实践,制定科学、合理的翻转课堂教学策略,提高初中体育教学工作效率。  相似文献   

超高含水原油混合流动及初始沉积特性     

邢晓凯  吕朝旭  刘珈铨 《中国科学院大学学报》2020,37(2):228-233

使用自行设计的实验装置，对超高含水原油的流动特性和初始沉积过程进行探究。系统研究实验温度、混合流速和体积含水率对超高含水原油初始沉积过程的影响，分析不同温度下原油的运动形态和初始沉积方式。初始沉积过程可分为蔓延沉积过程和粘连沉积过程，根据沉积特点和压降曲线的变化趋势将初始沉积过程分为3个阶段：沉积诱导期、快速沉积期和沉积动态平衡期。通过对沉积物碳数分布的分析，得知超高含水原油初始沉积过程中，同时存在剪切剥离作用、胶凝作用和分子扩散作用。实验温度和体积含水率主要通过改变胶凝作用和分子扩散来影响初始沉积过程，混合流速通过改变剪切剥离强度来影响初始沉积过程。  相似文献   

Actions for sociopolitical consciousness in a high school science class: A case study of ninth grade class with predominantly indigenous students     

Bhaskar Upadhyay  Erin Atwood  Baliram Tharu 《科学教学研究杂志》2020,57(7):1119-1147

This case study explores how a group of Grade 9 students engaged in sociopolitical discourses and actions in a science class in a mostly indigenous student school in Nepal. The study used sociopolitical consciousness (SPC) as a framework to document and understand indigenous students’ SPC-oriented science interactions and subsequent social change actions. We used ethnographic methods of data collection over 6 months. The study focused on the actions of 4 girls and 2 boys belonging to the indigenous Tharu group. Data were analyzed using iterative qualitative methods. The study findings show that students are capable of engaging in critical thinking, critical reflecting, and taking actions for social change. Additionally, students are competent to link their experiences with social, structural, and political discrimination to the relevant science content they learn. The study presents four thematic findings related to SPC and science teaching and learning: Fostering social justice awareness in science class, fostering structural understanding of inequities in sickle cell disease, fostering sociopolitical actions for sickle cell disease, and the teacher's activist pedagogy for SPC in science learning. Implications of the study are that culturally relevant pedagogy helps indigenous students to become sociopolitically more aware of the links between science and social change. Adding aspects of critical pedagogies in science teaching could encourage students to become more sociopolitically reflective about science learning.  相似文献   

Altmetrics的形成与演进:理论假说、发展阶段及学科关系     

张洋  庞进京  母丹 《图书情报工作》2021,64(23):141-150

[目的/意义] Altmetrics诞生十周年之际，对其前期发展情况进行总结，有助于推动其往积极方向发展。[方法/过程] 利用文献计量方法进行量化研究以展现Altmetrics领域的总体研究和发展情况；从术语变迁、定义等方面揭示其内涵；提出三种理论假说寻求Altmetrics存在合理性的理论支撑；划分不同阶段梳理其发展程度；分析它与其他学科的关系以明确学科属性及价值。[结果/结论] Altmetrics为计量学提供了一种新思维、新方法；开放科学假说、数字学术假说和学术传承假说符合新环境Altmetrics发展的新特点，有效支撑了Altmetrics的存在与发展；Altmetrics发展迅速，但现阶段处于发展初期，且国内外发展程度存在差异；在辨析与其密切相关学科之间关系的基础上，认为需推动Altmetrics自身学科纵深发展以及加强跨学科的合作研究。  相似文献   

High ability students with coexisting disabilities: Implications for school psychological practice     

Megan Foley-Nicpon  Susan G. Assouline 《Psychology in the schools》2020,57(10):1615-1626

School psychologists are well-positioned to change the educational landscape for twice-exceptional students, or those who possess high ability in one or more talent domains along with one or more disabilities. Better understanding of the nuanced cognitive and psychosocial assessment patterns within this population may increase well-needed participation in gifted education opportunities and the likelihood of receiving accommodations, as well as decrease missed diagnoses. Based on our review of the empirical literature within domains of twice-exceptionality (e.g., attention deficit hyperactivity disorder, autism spectrum disorder, and specific learning disability), we provide recommendations for how school psychologists can interpret formative and summative assessments taken by twice-exceptional students and subsequently help design educational plans that will meet their unique needs.  相似文献   

我国高危险性体育项目的立法缺陷及其完善     

汪全胜  宋琳璘  张奇 《武汉体育学院学报》2020,54(6):46-53

高危险性体育项目相对一般体育项目而言，是具有危险性大、专业技术性强、安全保障要求高等特点的体育活动。我国对高危险性体育项目有一定的法律规制，但存在顶层设计缺失、法律制度之间的冲突与不一致、可操作性不足等问题。这些制度缺陷产生的根源在于对立法必要性的认识不足、立法不作为，缺乏有效的立法监督机制等，现有制度的缺陷与不足会影响我国高危险性体育项目的发展，难以满足人们体育文化活动的需要。鉴于此，我国应逐步完善高危险性体育项目的法律规制，包括完善高危险性体育项目的审定主体，明确经营高危险性体育项目的主体范围、完善高危险性体育项目的行政许可条件、强化高危险体育项目行政监管以及风险防范等。  相似文献   

用户动机视角下的Altmetrics指标研究     

刘晓娟  王晨琳 《图书情报知识》2020,(3):63-70,96

[目的/意义]从用户动机视角对Altmetrics指标的本质和价值进行分析,使Altmetrics的应用更为科学合理。[研究设计/方法]首先对相关文献中的动机进行组织提炼与规范化表述。在此基础上引入用户行为理论解释和分析用户动机体现的指标价值。再选取Twitter提及量指标,使用内容分析法进行案例研究。[结论/发现]提炼出19种用户动机,其中有6种动机会降低指标应用价值。[创新/价值]探索Altmetrics数据的产生机制,在一定程度上回答了Altmetrics指标可用性问题。  相似文献   

Systematic Comparison of Decision Accuracy of Complex Compensatory Decision Rules Combining Multiple Tests in a Higher Education Context          下载免费PDF全文

Iris E. Yocarini  Samantha Bouwmeester  Guus Smeets  Lidia R. Arends 《Educational Measurement》2018,37(3):24-39

This real‐data‐guided simulation study systematically evaluated the decision accuracy of complex decision rules combining multiple tests within different realistic curricula. Specifically, complex decision rules combining conjunctive aspects and compensatory aspects were evaluated. A conjunctive aspect requires a minimum level of performance, whereas a compensatory aspect requires an average level of performance. Simulations were performed to obtain students' true and observed score distributions and to manipulate several factors relevant to a higher education curriculum in practice. The results showed that the decision accuracy depends on the conjunctive (required minimum grade) and compensatory (required grade point average) aspects and their combination. Overall, within a complex compensatory decision rule the false negative rate is lower and the false positive rate higher compared to a conjunctive decision rule. For a conjunctive decision rule the reverse is true. Which rule is more accurate also depends on the average test reliability, average test correlation, and the number of reexaminations. This comparison highlights the importance of evaluating decision accuracy in high‐stake decisions, considering both the specific rule as well as the selected measures.  相似文献   

鼓励学生互动合作培养英语核心素养探研     

邱征荣 《成才之路》2020,(4):134-135

初中英语教学中的互动合作多以小组合作模式开展。在此过程中,教师需要将核心素养理念贯穿于活动准备、活动开展和活动评价三个阶段,以训练学生英语思维,提升学生语言表达能力。  相似文献