Exploring the forward citation patterns of patents based on the evolution of technology fields     

Su Jung Jee  Minji Kwon  Jung Moon Ha  So Young Sohn 《Journal of Informetrics》2019,13(4):100985

Forward citations of patents have been used extensively to capture the impact of technological knowledge. However, our understanding of the factors shaping patent citation patterns remains limited. One of the main limitations is the lack of scholarly attention paid to the dynamic influences arising from the evolution of technology fields. From an evolutionary perspective, technological impact is not simply determined by the static attributes of a technology itself; it is also dynamically affected by changes in the external conditions. Drawing on this viewpoint, this study suggests a model for understanding patent citation patterns by reflecting the evolution of the technology fields to which each patent belongs. Four such factors are explored: technology cycle time, potential of technological convergence, popularity of the technology field, and technological novelty. Based on the proposed model, we show how expected citation patterns can change as a result of different scenarios for technology field evolution. We conduct a case study of patents in the information technology and healthcare industries to show citation patterns of patents across heterogeneous industries as well as those within an industry. Contributions to the innovation literature and research investment decisions are discussed.  相似文献   

Applying computerized-scoring models of written biological explanations across courses and colleges: prospects and limitations     

Ha M  Nehm RH  Urban-Lurain M  Merrill JE 《CBE life sciences education》2011,10(4):379-393

Our study explored the prospects and limitations of using machine-learning software to score introductory biology students’ written explanations of evolutionary change. We investigated three research questions: 1) Do scoring models built using student responses at one university function effectively at another university? 2) How many human-scored student responses are needed to build scoring models suitable for cross-institutional application? 3) What factors limit computer-scoring efficacy, and how can these factors be mitigated? To answer these questions, two biology experts scored a corpus of 2556 short-answer explanations (from biology majors and nonmajors) at two universities for the presence or absence of five key concepts of evolution. Human- and computer-generated scores were compared using kappa agreement statistics. We found that machine-learning software was capable in most cases of accurately evaluating the degree of scientific sophistication in undergraduate majors’ and nonmajors’ written explanations of evolutionary change. In cases in which the software did not perform at the benchmark of “near-perfect” agreement (kappa > 0.80), we located the causes of poor performance and identified a series of strategies for their mitigation. Machine-learning software holds promise as an assessment tool for use in undergraduate biology education, but like most assessment tools, it is also characterized by limitations.  相似文献   

营造关怀环境 让大学生村官扎根基层     

陈晓健  哈艳 《保定学院学报》2011,24(6):49-52

大学生村官选聘工作进展顺利,效果很好,但也暴露了诸多问题。分析选聘大学生村官呈现的新趋势,阐述普遍存在于这个特殊群体中的内心要求,提出满足这些要求的思路和对策。  相似文献   

关于大学新生个性与潜能的调查分析     

哈志洁 《甘肃高师学报》2002,7(6):71-73

我们根据 10 0 0名新生的个性与潜能现状的调查分析看出 ,人的个性与自身潜能的挖掘程度有密切关系。为此 ,建议高等师范教育应注重培养大学生的良好个性 ,尽可能地为充分发挥大学生的潜能提供完善的教育条件 ,为社会培养更多的能够自我发展、自我实现的开拓型人才。  相似文献   

一种基于加权关联规则的协同推荐算法   总被引：3，自引：0，他引：3  

哈进兵  郑锐  甘利人 《情报学报》2010,29(4)

协同过滤技术不需要分析待推荐资源的内容信息,在电影、音乐、图书等非结构化数据占主流的电子商务推荐领域得到了广泛的应用,成为电子商务推荐领域的主流技术.针对基于项目的协同过滤算法不能实现"跨类型"推荐的缺点,本文提出了一种新的基于关联性评分预测的协同过滤算法IAPCF.区别于传统的算法,IAPCF算法根据项目之间的关联规则,而不是根据多用户对项目评分形成的向量间的相似度来寻找项目的最近邻居集合.该算法能较好地实现"跨类型"项目的推荐.实验结果表明,IAPCF算法具有更好的推荐精度.  相似文献   

Developing Faculty Research Skills: Lessons Learned     

Chau Ha  Madeline Press 《Community College Journal of Research & Practice》2013,37(6):431-440

ABSTRACT

The purpose of this reflective commentary is to describe and analyze how efforts were made to engage polytechnic nursing faculty in a multi-institutional, interprofessional research project, and the effectiveness of methods used. We describe the professional development and project management activities provided along with our reflection as to their effectiveness. The faculty members worked at a polytechnic, a small vocational and technical institution in Western Canada with approximately 14,000 full-time students, where faculty were not required to participate in research. Assumptions were made about their interest, knowledge, and ability regarding the research process. These assumptions led the investigators to implement professional development activities that were not effective. Spontaneous informal, anecdotal feedback from some faculty members to the authors, and the authors’ own observations, informed the results. Assumptions about novice faculty research skills may not be accurate; therefore, an effort should be made to perform a pre-assessment of these skills, to create a lesson plan, to assess the effectiveness of teaching strategies, and to evaluate the effectiveness of supportive measures in order to address learning needs.  相似文献   

欧洲九国共产党情报局机关刊物《争取持久和平,争取人民民主!》与中国关系考述(1949-1956)     

哈战荣 《图书馆杂志》2020,(4):21-26

《争取持久和平,争取人民民主!》是20世纪40年代中后期,欧洲九个社会主义国家的共产党和工人党为了一致行动而建立的情报局机关刊物。该刊物对新中国初期我国经济社会建设及成就进行了大量宣传与报道,对加强我国与世界其他爱好和平、渴求民主的各国人民加强互信、长存友谊贡献很大,也对当前学者研究新中国初期我国经济社会发展的过程、成就和经验等提供了原始史料,学术研究意义也很重大。但是,目前对这份刊物及其发挥过的重大作用了解的人少之又少,时值中国共产党成立100周年之际,对其创刊与发行的历史过程进行回顾、宣传中国社会经济发展的全貌进行展示、推动世界社会主义运动的作用进行肯定,意义都很重大。  相似文献   

Understanding the majority opinion formation process in online environments: An exploratory approach to Facebook     

Sangwon Lee  Taehyun Ha  Daeho Lee  Jang Hyun Kim 《Information processing & management》2018,54(6):1115-1128

Majority opinions are often observed in the process of social interaction in online communities, but few studies have addressed this issue with empirical data. To identify an appropriate theoretical lens for explaining majority opinions in online environments, this study investigates the skewness statistic, which indicates how many “Likes” are skewed to major comments on a Facebook post; 3489 posts are gathered from the New York Times Facebook page for 100 days. Results show that time is not an influential factor for skewness increase, but the number of comments has a logarithmic relation to skewness increase. Regression models and Chow tests show that this relationship differs depending on topic contents, but majority opinions are significant in overall. These results suggest that the bandwagon effect due to social affordance can be a suitable mechanism for explaining majority opinion formation in an online environment and that majority opinions in online communities can be misperceived due to overestimation.  相似文献   

数控仿真系统在数控教学中的应用     

马永青  郇新 《潍坊教育学院学报》2008,21(4):41-43

随着科学技术的迅猛发展,数控加工在机械制造业中占有着越来越重要的地位。本文结合我院近几年使用数控仿真软件教学的实践,对数控仿真教学系统的应用形式及功用等进行介绍。  相似文献   

西部成人高等教育的实践探索、逻辑要义与行动理路 ——以Q大学为例     

郭文龙  哈立新 《继续教育研究》2021,(9):8-14

在国内国际双循环的背景下,进一步提升成人高等教育的教学质量,增强成人高等教育学生的能力和素养,仍是全社会关注的课题.以Q大学为例,阐述了Q大学成人高等教育的基本情况、实践探索.结合《中华人民共和国国民经济和社会发展第十四个五年规划和2035年远景目标纲要》,西部成人高等教育发展在方向性、公益性、公平与质量、终身教育上实现价值旨归是其发展的逻辑要义.基于其逻辑要义,切合于"一带一路""西部大开发"国家发展战略,着眼于人民对不同层次、水平高等教育的需求,未来西部高等教育需要综合施策,主要从政策驱动、未来导向、制度创新等三个方面推动自身内涵式发展和整体能力的提升,以解决西部高等教育全面振兴发展过程中其自身的积极性、发展的可能性与可行性等问题.  相似文献