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Web环境下关联数据的应用 总被引:1,自引:0,他引:1
阐述了关联数据的基本理论、4个基本原则和核心的实现技术,对比分析了当前Web资源与关联数据应用之后所形成的数据Web之间的异同,然后对Web环境下关联数据的两方面应用进行分析研究,最后,给出关联数据应用所面临的挑战。Abstract: The paper expatiates on the basic theory,4 basic principles and the core implementation technologies of linked data.It also compares and analyzes the differences and similarities between the current Web resources and the Web of data after using the linked data.The paper then analyzes and studies the application of linked data in 2 aspects in the Web environment.Finally,the challenges faced by the application of linked data are described. 相似文献
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基于Web的数据仓库与数据挖掘技术 总被引:14,自引:0,他引:14
The paper discusses the Web-based data warehousing and data mining technologies, analyzes the similarities and differences between the traditional data warehousing and data mining and the Web-based data warehousing and data mining. The architecture of the Web-based data warehousing is presented. The problems that should be solved are pointed out and some solutions are given. 相似文献
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网络文本数据搜索引擎与搜索技术 总被引:3,自引:0,他引:3
This paper describes the functions, characteristics and operating principles of search engines based on Web text, and the searching and data mining technologies for Web-based text information. Methods of computer-aided text clustering and abstacting are also given. Finally, it gives some guidelines for the assessment of searching quality. 相似文献
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学术期刊文献信息的传播与编辑 总被引:5,自引:0,他引:5
The characteristics and functions of academic journals and the new demand for documentary information in academic journals in the information age are expounded. By introducing the characteristics of edition and dissemination of printed journals, secondary documents and academic journals (CD), the paper emphasizes the importance of large-scale integration and secondary edition of documentary information in journals for enhancing information dissemination and availability ratio of academic journals. 相似文献
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FU Bojie 《中国科学院院刊(英文版)》2004,18(3):178-185
The overall situation of the world‘s current disciplinary development in the sciences dealing with resources and the environment features the following characteristics: the guiding thoughts of holism and systematics are leading a growing trend of all-round enhancement while inter-disciplinary integration and crossbreeding between the natural sciences and social sciences or the humanities are emerging in the research of resources and environment problems; the holistic, 相似文献
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Stretchable electronics are emerging for personalized and decentralized clinics,wearable devices and human-machine interactions.Nowadays,separated stretchable functional parts have been well developed and are approaching practical usage.However,the production of whole stretchable devices with full functions still faces a huge challenge:the integration of different components,which was hindered by the mechanical mismatch and stress/strain concentration at the connection interfaces.To avoid connec... 相似文献
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The characteristics and development ofcluster technology are briefly introduced. The requirement for cluster technolgv, the grade of availability, the advantage of cluster technology and the system structure model are discussed. Finally,the article specifies 3 data sharing models,that is,Mirror,Share Nothing and Share All. 相似文献
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Li Jun 《中国科学院研究生院学报》1992,(2)
Monitoring the development and evolution of a deep convec-tive system from gcostationary satellite imagery is very important tonowcasting and heavy rainfall estimation.Using combined infrared andvisible imagery to analyse convective clouds is feasible and effective,but unfortunately,visible satellite data are not available at night.Inthis paper,a method of fuzzy clustering scheme based on texture featureanalysis has been put forward to distinguish the deep convective cloudsfrom cirrus and stratiform by use of GMS/IR image.Results from usingonly IR data and using both IR and VIS data are compared and discus-Sed. 相似文献
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Mandated storage,curation and management of research data is likely to significantly challenge and change established institutional repository processes in coming years.At the major repository conferences,management of research data and metadata has been the hot topic of recent years.The biggest institutions with large research communities and well-resourced digital libraries,are already actively working on integrating ‘data’ into their repository ecosystems. 相似文献
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JingYipeng GerhardBorner 《中国科学院院刊(英文版)》2004,18(2):58-59
The Partner Group does research in cosmology, focussing on the quantitative modeling of the structure and evolution of galaxies and galaxy clusters, the pattern of galaxies and of larger structures. The usual approach in this field is the dark matter paradigm, i.e. the assumption that the basic structures are laid out in a matter component of particles which interact only gravitationally. Numerical simulations of large scale and high resolution are used to follow the evolution of condensations of dark matter particles during cosmological evolution. Analytic models and detailed statistical investigations of astronomical data sets supplement the numerical work. 相似文献
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数据质量影响用户数据的整合过程与结果、数据库的应用性、商业智能开发以及商业品牌。由信息系统呈现的数据,为满足用户的需求并将其做有效的应用,基础均在于数据的质量。针对数据质量的评估方式、管理架构和评估要素,建构数据质量评价指标体系,为提高数据质量从而改善图书馆信息服务提供参考。 相似文献
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利用498家高新技术上市公司的数据,探讨供应链集成对企业技术创新绩效提升的作用机制。研究发现,企业供应链集成显著正向影响企业技术创新绩效,技术创新资源配置中研发资金配置和人力资源配置均显著正向调节供应链集成与企业技术创新绩效的关系,协同创新程度在企业供应链集成与技术创新绩效之间起到正向调节作用。最后,从技术创新资源配置等角度向企业管理部门提出政策建议,为企业提升技术创新绩效提供实践指导。 相似文献
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企业大数据能力培育机制研究 总被引:2,自引:0,他引:2
文章简述了企业大数据能力的内涵,分析了大数据能力提升企业竞争优势的路径,阐述了影响企业大数据能力的关键因素,提出了提升企业大数据能力的对策和措施。 相似文献
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[目的/意义] 融合多源数据,从大量真实具体的企业竞争对手中抽取出竞争对手的画像,为解决海量竞争对手无限性和企业竞争情报资源有限性之间的矛盾提供启发。[方法/过程] 从画像指标体系、数据采集、数据融合、数据分析、画像构建和画像应用等环节出发,提出了一套融合多源数据的企业竞争对手画像构建模式,然后以H公司为例开展了实证研究。[结果/结论] 基于所提出的竞争对手画像构建模式,构建了H公司的主要竞争对手画像,从而为企业的竞争对手画像构建实践以及为后续相关理论研究和实证研究提供参考。 相似文献
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本文基于浙江企业的调研数据,从联盟动机、合作方式和成果形式等方面实证分析了专利联盟提升企业自主创新能力的作用方式。实证结果表明获取技术领先优势和提升产品竞争优势的联盟动机对企业自主创新能力提升有着积极作用,"技术+技术"和共建研发机构的合作方式与企业自主创新能力提升之间有着显著的正相关关系,市场融合、技术融合和专利融合的成果形式更有利于联盟活动的开展。而专利联盟作用的发挥更是需要有效的政策措施来加以引导保障,在政府政策的推动下可以确保专利联盟高效地提升企业自主创新能力。 相似文献
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领先的企业正在通过灵活的面向服务的体系结构(SOA)构建适应性强、可重用的业务流程和服务来实现业务的灵活扩展或整合,提升业务运营效率。基于SOA架构,通过对准实时平台、信息集成平台的建设和对接,整合营销MIS系统、配网生产系统、配网自动化系统等相关业务系统,桂林供电局构建起以配电GIS系统为基础的营配一体化平台,有效消除信息孤岛、发挥资源最大能量,实现营配协同管理的创新管理模式。 相似文献