大数据视域下的档案安全管理体系构建及可引入技术分析     

孙宁 《档案管理》2020,(3):12-13

在大数据视域下,以档案管理理论和信息系统安全理论为基础,参考国家相关法规及标准,结合档案管理工作实务,研究当下档案管理工作中的风险,在此基础上初步构建起档案安全管理体系,并对可引入该体系的实用技术进行分析。  相似文献   

Rethinking the intention to behavior link in information technology use: Critical review and research directions     

《International Journal of Information Management》2021

Extant research on technology acceptance has devoted considerable attention to the relationship between behavioral intention (BI) and system use (SU) over time. However, the empirical results have been mixed—studies have found BI to both influence and not influence SU. Studies that examined the BI→SU relationship have employed different research models and research designs. Prior research models have examined direct effects on SU, indirect effects on SU through BI, the moderator effects on BI→SU, and the mediating role of BI in BI→SU. Studies have employed different types of respondents, information technologies, geographic regions, voluntariness, and measurement designs. This study proposes that such differences in research models and designs contribute to the mixed results for BI→SU, and reports a meta-analysis of findings reported in 113 prior studies along with a critical review of the BI→SU relationship. While no significant differences were found in the results for the BI→SU relationship across various research design characteristics, this study finds that the measurement of SU has been conflated with future and current or past behavior, direct and indirect effects on SU impact BI→SU, BI is modeled to fully and partially mediate the effects of other variables on SU, and moderators for the BI→SU relationship may be necessary. This study identifies several directions for future research and underlines the need to rethink the link between BI and SU.  相似文献   

LIS学术论文研究方法知识库构建与应用实验     

陈忆金 《图书馆论坛》2020,(6):47-54

为深入理解图书情报学学术论文中所使用的研究方法的语义功能,为用户提供基于知识单元的细粒度知识服务,文章首先基于体裁理论来分析引文分析法、田野研究法、共词分析法、实验法、比较分析法和问卷调查法的知识单元构成。其次采用文本分析法,检索CSSCI图书情报学领域的18种期刊中使用以上6种研究方法的论文,进行知识单元层次的深度标引,作为知识库构建的语料。再次采用系统设计法,开发具有4种功能的学术论文研究方法学习系统。最后采用实验法,招募30位研究生使用系统,并根据用户体验对其可用性进行评价。结果表明:研究方法的体裁分析能较好地表示使用该方法开展研究的论文的语义功能,解释研究方法使用过程各部分的语义特征,为深入到知识单元层面的标引提供了基础,也为用户提供了基于知识单元的细粒度的检索点,知识库具有很好的可用性。文章揭示了论文研究方法使用过程各部分的语义特征,基于知识单元构成而设计的学术论文研究方法知识库能有效帮助用户学习研究方法,为学术论文研究方法内容的深度语义标引和本体开发奠定了基础,也为用户提供细粒度、多维度的论文研究方法内容的检索服务,对面向知识发现的知识组织研究具有参考意义。  相似文献   

An extension of the technology acceptance model in the big data analytics system implementation environment     

Surabhi Verma  Som Sekhar Bhattacharyya  Saurav Kumar 《Information processing & management》2018,54(5):791-806

Research on the adoption of systems for big data analytics has drawn enormous attention in Information Systems research. This study extends big data analytics adoption research by examining the effects of system characteristics on the attitude of managers towards the usage of big data analytics systems. A research model has been proposed in this study based on an extensive review of literature pertaining to the Technology Acceptance Model, with further validation by a survey of 150 big data analytics users. Results of this survey confirm that characteristics of the big data analytics system have significant direct and indirect effects on belief in the benefits of big data analytics systems and perceived usefulness, attitude and adoption. Moreover, there are mediation effects that exist among the system characteristics, benefits of big data analytics systems, perceived usefulness and the attitude towards using big data analytics system. This study expands the existing body of knowledge on the adoption of big data analytics systems, and benefits big data analytics providers and vendors while helping in the formulation of their business models.  相似文献   

本科教学改革的系统思考——以“高考不分文理”改革目标为背景     

高耀明 《复旦教育论坛》2014,(6)

"高考不分文理"将为大学推进本科教学改革和实施通识教育带来契机。本文以"高考不分文理"改革目标为背景,运用系统思考原理,讨论了大学本科教学改革的成长上限,揭示了本科教学改革的高杠杆解,并尝试提出了本科教学改革的路径:把课程实施大纲作为本科教学改革的高杠杆解,通过推行课程实施大纲,分三步持续推进本科教学改革,实现本科通识教育的改革目标。  相似文献   

GIS在CRM系统中的应用研究     

朱海兵  艾菊梅 《科技广场》2007,(1):155-156

本文探讨了GIS在CRM(Customer Relationship Management)中的应用,以期不断促进GIS在企业管理与决策及电子商务中的应用。  相似文献   

Subspace design of low-rank estimators for higher-order statistics     

Ivan Bradaric  Athina P. Petropulu  Konstantinos I. Diamantaras 《Journal of The Franklin Institute》2002,339(2):161-187

Higher-order statistics (HOS) are well known for their robustness to additive Gaussian noise and ability to preserve phase. HOS estimates, on the other hand, have been criticized for high complexity and the need for long data in order to maintain small variance. Since rank reduction offers a general principle for reduction of estimator variance and complexity, we consider the problem of designing low-rank estimators for HOS. We propose three methods for choosing the transformation matrix that reduces the mean-square error (MSE) associated with the low-rank HOS estimates. We also demonstrate the advantages of using low-rank third-order moment estimates for blind system estimation. Results indicate that the full rank MSE corresponding to some data length N can be attained by a low-rank estimator corresponding to a length significantly smaller than N.  相似文献   

入侵检测系统的分析研究     

彭斌 《科技广场》2007,(1):114-116

介绍了一种新的网络安全技术---入侵检测系统,它是一种以攻为守的主动式防御措施,而且是针对网络内部攻击进行防御。本文涉及了入侵检测系统的诸多方面,为进行入侵检测系统的研究提供相应的理论依据。  相似文献   

校园综合信息平台解决方案     

肖晓梅 《科技广场》2005,(5):48-50

文结合校园Internet／Intranet教育信息平台，对高等学校信息化教学的基本功能、主要特点、组成构架及软、硬件设备选型进行了简要概述，并就如何确定网络设计方案及方案的具体实施提出了建设性的意见。  相似文献   

基于Java的网络即时通讯系统设计分析     

刘瑛  范文娟  刘群一 《科技广场》2005,(12):41-44

网络即时通讯系统是为了满足异地用户之间必要的网络通讯而设计的一套系统，是在通讯双方认可的条件下进行即时的文字交流和文件交流．本文从用户、已实现的应用程序源代码的角度分析系统的应用需求、功能模块、系统数据库、通讯机制设计和源代码的结构。  相似文献