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1.
计算机软件蕴含大量工作信息,有效挖掘软件数据信息之间的内在关联是信息时代对软件应用的潜在要求。针对经典Apriori算法挖掘数据效率低、复杂度高的问题,提出一种改进Apriori算法用于挖掘计算机软件数据的关联规则。为计算机软件算法设置双重支持度阈值,即频繁项集与非频繁项集支持度阈值,快速获得强关联的频繁项集;在此基础上基于映射规则重构事务数据库,压缩数据库规模,减少算法的剪枝操作,降低计算机软件数据关联规则挖掘复杂度。以人力资源类计算机软件数据为例展开关联分析测试,结果显示,该算法挖掘的关联信息与人力资源实际管理情况一致,相比经典Apriori算法其效率有所提升。  相似文献   
2.
《Research Policy》2022,51(2):104416
Do informal social ties connecting inventors across distant places promote knowledge flows between them? To measure informal ties, we use a new and direct index of social connectedness of regions based on aggregate Facebook friendships. We use a well-established identification strategy that relies on matching inventor citations with citations from examiners. Moreover, we isolate the specific effect of informal connections, above and beyond formal professional ties (co-inventor networks) and geographic proximity. We identify a significant and robust effect of informal ties on patent citations. Further, we find that the effect of geographic proximity on knowledge flows is entirely explained by informal social ties and professional networks. We also show that the effect of informal social ties on knowledge flows is greater for new entrepreneurs or ‘garage inventors’, for older or ‘forgotten’ patents, and for flows across distant technology fields. It has also become increasingly important over the last two decades.  相似文献   
3.
The appearance attribute and pose are two important and complementary features, so integrating them can effectively alleviate the impact of misalignment and occlusion on re-identification. In this paper, we deeply investigate the inner relation between attribute features and the spatial semantic relation between key-point region features of the pose in a person image and propose a person re-identification method based on discriminative feature mining with relation regularization. Firstly, an attribute relation detector based on nonlinear graph convolution is built on mining the inner correlation between attribute features of a person, providing relational attribute features for more effectively distinguishing persons with a similar appearance. Then, we construct a hierarchical pose pyramid to model the multi-grained semantic features of key-point regions of the pose and propose intra-graph and cross-graph node relation information propagation structures to infer the spatial semantic relation between node features within-graph and between-graph. This module is robust to complex pose changes and can suppress noise background redundancy caused by inaccurate key point detection and occlusion. Finally, a refined feature model is proposed to effectively fuse the global appearance feature with the relational attribute and multi-grained pose features, thus providing a more discriminative fusion feature for person re-identification. Many experiments on three large-scale datasets verify the effectiveness and state-of-the-art performance of the proposed method.  相似文献   
4.
Collaborations in funded teams are essential for understanding funded research and funding policies, although of high interest, are still not fully understood. This study aims to investigate directed collaboration patterns from the perspective of the knowledge flow, which is measured based on the academic age. To this end, we proposed a project-based team identification approach, which gives particular attention to funded teams. The method is applicable to other funding systems. Based on identified scientific teams, we detected recurring and significant subgraph patterns, known as network motifs, and under-represented patterns, known as anti-motifs. We found commonly occurred motifs and anti-motifs are remarkably characterized by different structures matching certain functions in knowledge exchanges. Collaboration patterns represented by motifs favor hierarchical structures, supporting intensive interactions across academic generations. Anti-motifs are more likely to show chain-like structures, hindering potentially various knowledge activities, and are thus seldom found in real collaboration networks. These findings provide new insights into the understanding of funded collaborations and also the funding system. Meanwhile, our findings are helpful for researchers, the public and policymakers to gain knowledge on research(ers) evolution, particularly in terms of primordial collaboration patterns.  相似文献   
5.
国际学术合作能够提高科研效率,推动知识创新,探讨国际合著论文中的国家贡献度,对反映国家领域影响力,提升国际合作态势具有重要意义。从数值和内容两个层面构建国际合著国家学术贡献度分析模型,以中国作为重点研究对象,以Web of Science为数据来源,通过构建国际合著网络,结合学术贡献度计算公式,分析近十年中国在Information Science&Library Science(图书情报学,以下简称ISLS)领域的学术贡献度,并以知识图谱的方式揭示中国学术参与主题的演化。结果表明:在数值方面,第一阶段中国学术贡献度较小,但第二阶段持续发力,成为国际合作中的后起之秀,学术贡献度仅次于美国;在内容方面,经历了从理论研究到技术创新的演进,参与的学术主题呈多元化和深入化趋势。  相似文献   
6.
知识管理是知识经济时代提出的新管理思潮与方法,如何使非遗档案成为助力民族紧密团结与繁荣发展的"知识资本",是知识管理理论范式下非遗档案工作的重要使命。文章将知识管理与非遗档案的收集、保管和开发利用相结合,从知识管理的知识获取、知识组织与存储、知识创造与共享三个层面,探讨其在非遗档案领域的应用问题,为非遗档案工作的创新提供了具体的操作思路。  相似文献   
7.
Contemporary information technologies such as social media have invigorated the way knowledge is shared within organizations to the extent that we have to rethink and reassess our understanding of the role and influence of technology in organizational processes and knowledge sharing. This paper uses the strategy as practice lens guided by the interpretivist philosophy to understand the influence of informal social media practices on knowledge sharing and work processes within an organization. The paper uses empirical evidence from the case study of a telecom organization in Tanzania to gain theoretical insight into informal social media practices and knowledge sharing. This research contributes to the Information Systems (IS) literature by asserting that organizational processes are achieved by mundane knowledge sharing mediated by informal social media use within the organization. Also, the study contributes to IS literature by highlighting how emerging informal practices are essential to daily processes within organizations.  相似文献   
8.
知识建构理论鼓励学生进行组间交互形成高层次的集体认知责任,教学过程中会生成一类特殊角色——外组中间人。为探究外组中间人的特征与作用以支持知识建构理论的发展与教育实践,研究全程跟踪南京师范大学硕士班“学习科学”知识建构课堂,原始数据是学生在数课云平台上发表、建构与评论的观点及交互的次数与方向。运用UCINET确定外组中间人,以描述性统计及内容分析归纳外组中间人的关键特征与作用。研究表明:知识建构社区中的外组中间人具有生成性、动态性、嵌套性与间接性的特征;他们通过观点陈述、提供资料、持续追问等方式干预外组活动;他们不仅是信息中介,更是知识中介。教师敏锐发现外组中间人,有意识地积极引导,将有助于促进社区深度知识建构的发展。  相似文献   
9.
文章采取文献计量学的分析方法,对1998—2018年国际教师专业学习研究的分布特征、前沿演进、热点主题、知识基础等做了系统的梳理和分析。研究表明:国际教师专业学习研究前沿热点主要集中在对不同专业发展阶段教师专业学习研究、技术整合与教师专业学习研究和教师专业学习影响因素研究。教师专业学习研究多以情境理论为理论基础,并提倡复杂理论研究视角。教师专业学习的本质是提升教师知识与技能,改变教师信念与态度,建议采用量化和质性相结合的研究方法。  相似文献   
10.
Abstract

Recent significant changes in technology such as Artificial Intelligence (AI) and big data analysis have a wide impact in many areas of human societies, not least in education. Advances in efficiency of new technologies, with impacts in renewable energy and transport affected by environmental concerns and climate change mitigation, demand a reassessment and adjustment of the industrial structure of the economy. Technological advances enhancing creativity and analytical skills mean people must learn and adapt to a fast-changing economic environment. This paper present some key changes in Australian educational areas in recent years that are important and relevant to the subject of education innovation and philosophy to achieve outcomes in training and sustainable economic development, as anticipated by the community and government. Education courses and curricula in many countries have been transformed by technological advance. It is the swift incorporation of new technologies that best prepares students for the dynamics of economic and social change. Even though technological responsiveness is not a new phenomenon, it is established that the teaching methods found to be most successful include complementary and supplemental courses producing multi-skilled and creative graduates. These courses are delivered with significant emphasis upon self-development skills and are less focused upon traditional content. A move toward horizontal focus and a student-centric balance is the current trend, displacing vertical over-specialisation of learning. Yet, the central role of educator is seen as still appropriate and necessary where the aim is to equip graduates with creative and adaptive skills.  相似文献   
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