Data quality management,data usage experience and acquisition intention of big data analytics     

Ohbyung Kwon  Namyeon Lee  Bongsik Shin 《International Journal of Information Management》2014

Big data analytics associated with database searching, mining, and analysis can be seen as an innovative IT capability that can improve firm performance. Even though some leading companies are actively adopting big data analytics to strengthen market competition and to open up new business opportunities, many firms are still in the early stage of the adoption curve due to lack of understanding of and experience with big data. Hence, it is interesting and timely to understand issues relevant to big data adoption. In this study, a research model is proposed to explain the acquisition intention of big data analytics mainly from the theoretical perspectives of data quality management and data usage experience. Our empirical investigation reveals that a firm's intention for big data analytics can be positively affected by its competence in maintaining the quality of corporate data. Moreover, a firm's favorable experience (i.e., benefit perceptions) in utilizing external source data could encourage future acquisition of big data analytics. Surprisingly, a firm's favorable experience (i.e., benefit perceptions) in utilizing internal source data could hamper its adoption intention for big data analytics.  相似文献   

A Challenge for the Developer: Issues of interactivity and linguistic-cognitive appropriateness in English language learning   总被引：1，自引：0，他引：1  

Anita Y. K. Poon 《Open Learning》2013,28(2):135-153

It is argued that language learning ought to be interactive. The traditional language classroom provides a favourable interactive situation for language learners. By contrast, the distance education mode is limited in some ways regarding language learning. Necessarily, distance education involves, primarily, self-learning. Face-to-face learning opportunities are scant compared with traditional classroom-based learning. It is, therefore, a challenge for language professionals to explore new ways of teaching language, the speaking skills in particular, within the constraints of the distance education mode. Being able to master English--an increasingly important international language--provides a key to information and learning societies in the 21 st century. In this paper, I will suggest some ways of maximizing the amount of interactive activities in English language distance learning, based on my work-based experience as a course developer of a new English enhancement course offered by the Open University of Hong Kong. I will focus on the development of listening and speaking skills, which are in fact the most problematic areas--the speaking skill, in particular, involves two-way communication. I will consider the issue from the perspectives of learners' motivation, peer support and technological support. Finally, I will present findings of a survey on the learners and tutors' feedback on the teaching materials of this new English language enhancement course.  相似文献   

Problem-based learning in formal and informal learning environments     

Goran Shimic  Aleksandar Jevremovic 《Interactive Learning Environments》2013,21(4):351-367

Problem-based learning (PBL) is a student-centered instructional strategy in which students solve problems and reflect on their experiences. Different domains need different approaches in the design of PBL systems. Therefore, we present one case study in this article: A Java Programming PBL. The application is developed as an additional module for the Learning Management System (LMS). This way the LMS is extended by PBL functionality and the LMS learning resources can be used in PBL.  相似文献   

学习分析技术:挖掘大数据时代下教育数据的价值     

魏顺平 《现代教育技术》2013,23(2):5-11

当前,大数据时代已经来临,教育领域同样积累了海量数据。教育领域已经部署了众多的学习管理系统,在这些软件系统中存储着海量的学习者信息及学习过程数据。如何利用这些数据,使这些数据转变为信息、知识,并为教学决策、学习优化服务,已成为教育工作者以及学习者们所关注的内容。学习分析技术有助于发挥学习过程数据的价值,使数据成为审慎决策、过程优化的重要依据。该文介绍了国内外学习分析技术研究现状,归纳出学习分析技术的关键技术及分析模式,并以实例从不同用户视角包括管理者、辅导教师、学习者展示了学习分析技术在网络学习过程分析中的应用过程。  相似文献   

大跨度U型钢板-混凝土组合楼盖结构施工技术     

郭立英  冯义民  张大伟 《唐山学院学报》2013,26(3):107-108

根据唐山某工程标准多层工业厂房大跨度U型钢板一混凝土空腹夹层大板楼盖结构施工特点及难点,重点阐述了U型钢板一混凝土空腹夹层楼板构造、施工工艺流程、施工要点及安全质量要求。工程实践表明：该施工工法在质量、成本、工期、节能、环境保护、劳动保护等方面均具有良好的经济效益和社会效益,具有很好的应用前景。  相似文献   

语义Web服务主流框架在数字图书馆中的应用研究   总被引：1，自引：0，他引：1  

张继东  万莉 《情报科学》2011,(1)

语义Web服务主流框架OWL-S、WSMO在数字图书馆中的应用受到了广泛的关注,二者为数字图书馆研究提供了新的思路,已经成为该领域研究的重点和热点问题之一。本文以语义Web服务在数字图书馆中的应用为研究对象,首先对语义Web服务进行了阐述,然后对语义Web服务的主流框架OWL-S和WSMO进行了分析,进而对OWL-S和WSMO进行了比较研究,最后对语义Web服务在数字图书馆中的应用进行了探讨,提出了今后主要的研究方向。  相似文献   

基于Web of Science的开放获取论文分析   总被引：2，自引：1，他引：1  

邱凤鸣  陈惠兰 《现代情报》2011,31(8):115-118

本文采用文献计量学方法,对Web of Science检索平台上1995-2010年间信息科学和图书馆科学学科的开放获取论文进行了发表时间和国家研究实力的分析,采用内容分析法对开放获取近来研究热点、多年来研究主题变化轨迹进行了分析。勾勒出1995-2010年间开放获取研究的发展历程和当前的研究重点,给国内该领域研究人员提供参考。  相似文献   

域名分析法的研究Ⅱ——应用研究   总被引：1，自引：0，他引：1  

邱均平  宋艳辉 《情报科学》2011,(2)

网络信息计量学是由文献计量学衍生出来的,其研究方法表现为移植文献计量学的研究方法,如网络链接分析法、网络内容分析法。对域名分析法的系统研究,有利于形成网络信息计量学真正意义上的特征研究方法。域名分析法应该包含网络日志、网络流量、网络引文等主体分析内容。文中对域名分析法的基本原理做了阐述;在此基础上,从网络日志分析、网络流量分析、网络引文分析角度出发详细介绍域名分析法的具体应用。  相似文献   

Web2.0时代网上公共危机诱因分析   总被引：1，自引：0，他引：1  

王战平  黄谷来 《情报科学》2011,(10)

网络在给我们的生活带来诸多益处的同时,也引发了不少的问题,例如网上公共危机。本文首先阐释了网上公共危机的定义,然后从直接原因、根本原因、间接原因和隐性原因四个方面对web2.0时代网上公共危机产生的诱因进行了深入的分析。  相似文献   

面向社科领域的网络新闻分析与监测   总被引：1，自引：0，他引：1  

刘晓娟  王凌云 《情报科学》2011,(10)

通过自然语言处理技术和数理统计方法的运用,网络新闻在经济金融、公共卫生、政治科学、科研管理、舆情监测与预警等社会科学领域具有很大的利用价值。对新闻分析与监测在各个社会科学领域的应用现状进行分析和综述,包括新闻来源、关键技术、领域特点、实施方法和典型系统,总结得出当前研究的特点及发展趋势。  相似文献