浅析信息资源数字化的存储技术   总被引：2，自引：0，他引：2  

臧国全 《情报科学》2000,18(12):1113-1115

本文讨论了数字化信息的生成技术、数字化信息的逻辑存储技术、数字化信息的物理存储技术和数字化信息的压缩技术。  相似文献   

A probabilistic model of information retrieval: development and comparative experiments: Part 2     

K. Sparck Jones  S. Walker  S. E. Robertson   《Information processing & management》2000,36(6):809

The paper combines a comprehensive account of the probabilistic model of retrieval with new systematic experiments on TREC Programme material. It presents the model from its foundations through its logical development to cover more aspects of retrieval data and a wider range of system functions. Each step in the argument is matched by comparative retrieval tests, to provide a single coherent account of a major line of research. The experiments demonstrate, for a large test collection, that the probabilistic model is effective and robust, and that it responds appropriately, with major improvements in performance, to key features of retrieval situations.Part 1 covers the foundations and the model development for document collection and relevance data, along with the test apparatus. Part 2 covers the further development and elaboration of the model, with extensive testing, and briefly considers other environment conditions and tasks, model training, concluding with comparisons with other approaches and an overall assessment.Data and results tables for both parts are given in Part 1. Key results are summarised in Part 2.  相似文献   

Refining and Extending the Business Model With Information Technology: Dell Computer Corporation   总被引：7，自引：0，他引：7  

Kenneth L. Kraemer  Jason Dedrick  Sandra Yamashiro 《The Information Society》2000,16(1):5-21

The exceptional performance of Dell Computer in recent years illustrates an innovative response to a fundamental competitive factor in the personal computer industry - the value of time. This article shows how Dell's strategies of direct sales and build-to-order production have proven successful in minimizing inventory and bringing new products to market quickly, enabling it to increase market share and achieve high returns on investment. The Dell case illustrates how one business model may have inherent advantages under particular market conditions, but it also shows the importance of execution in exploiting those advantages. In particular, Dell's use of information technology (IT) has been vital to executing both elements of its business model - direct sales and build-to-order - and provides valuable insights into how IT can be applied to achieve speed and flexibility in an industry in which time is critical. Many of the insights gained from this case can be applied more generally to other time-dependent industries, suggesting that the findings from the Dell case will have implications for a growing number of companies and industries in the future.  相似文献   

移天缩地,咫尺万里--评《数字信息资源的检索与利用》     

董小英 《大学图书馆学报》2004,22(3):88-89

评述了《数字信息资源的检索与利用》一书,认为该书是中国第一部真正意义上的数字信息资源检索与利用方面的指南性工具书,指出其对于培养读者的检索技能、提高其信息素养的重大价值。  相似文献   

网上图书情报专业论坛模式研究   总被引：4，自引：0，他引：4  

张文彦 《大学图书馆学报》2004,22(2):75-78

对国内外几个重要的图书情报专业论坛作了简要述评,总结了论坛发展的特点,提 出促进论坛发展的几个途径。  相似文献   

国内外信息管理研究的流派与研究框架   总被引：1，自引：0，他引：1  

周晓燕  孙青 《大学图书馆学报》2004,22(6):14-18

在对国内外信息管理研究中关于信息管理概念的不同提法进行综述和分析的基础上,依据研究体系、范畴、对象的不同特点,将当前的信息管理研究划分为四个不同的流派,并分别对他们的研究框架进行了归纳总结和剖析。最后,对信息管理领域新的研究方向作出了展望。  相似文献   

从CALIS到CADLIS--"中国高等教育数字化图书馆"建设项目正式启动   总被引：7，自引：1，他引：6  

李晓明 《大学图书馆学报》2004,22(5):3-4,10

总结了中国高等教育文献保障体系(CALIS)“九五”阶段的建设成果和经验,“十五”建设项目由CALIS二期工程和中英文图书数字化国际合作计划(CADAL)两个专题组成,名称调整为“中国高等教育文献保障体系——中国高等教育数字化图书馆”(CADLIS),指出了其建设目标、建设内容和任务。  相似文献   

Differences in representations of Japanese name authority data among CJK countries and the Library of Congress     

Maiko Kimura 《Information processing & management》2014

This study aims to compare representations of Japanese personal and corporate name authority data in Japan, South Korea, China (including Hong Kong and Taiwan), and the Library of Congress (LC) in order to identify differences and to bring to light issues affecting name authority data sharing projects, such as the Virtual International Authority File (VIAF). For this purpose, actual data, manuals, formats, and case reports of organizations as research objects were collected. Supplemental e-mail and face-to-face interviews were also conducted. Subsequently, five check points considered to be important in creating Japanese name authority data were set, and the data of each organization were compared from these five perspectives. Before the comparison, an overview of authority control in Chinese, Japanese, Korean-speaking (CJK) countries was also provided. The findings of the study are as follows: (1) the databases of China and South Korea have mixed headings in Kanji and other Chinese characters; (2) few organizations display the correspondence between Kanji and their yomi; (3) romanization is not mandatory in some organizations and is different among organizations; (4) some organizations adopt representations in their local language; and (5) some names in hiragana are not linked with their local forms and might elude a search.  相似文献   

An information delivery model for banking business     

《International Journal of Information Management》2014,34(2):139-150

Banking is an enterprise consists of different levels of users with the requirement of different levels of information. We propose an information delivery model for banking business which takes information from business analysis and finds the best user for this information with respect to criteria and delivers the multi criteria reporting. There are many multi criteria decision making techniques [MCDM] available to find the best alternative in MCDM problem. We applied fuzzy MCDM technique which resolves inconsistency and uncertainty issues involved in decision making of information delivery for bank users. This model classifies most preferred user to least preferred user for the given information using fuzzy score. This information delivery model and its layers can be applied to other domains to build information delivery model.  相似文献   

基于移动社交网络的区域信息服务平台研究     

魏笑笑 《科技管理研究》2014,(16)

在分析MSNS的应用现状和技术特征的基础上,归纳出区域信息服务平台开展MSNS的可行性和优势;以高校图书馆微信应用为例进行实证研究,剖析目前我国区域信息服务平台应用MSNS的基本现状,总结MSNS在区域信息服务平台中的应用趋势,从而为其它行业应用MSNS进行信息服务提供参考和借鉴。  相似文献