回溯建库效益分析     

罗少芬 《图书馆学研究》2003,(11):23-24,14

本文在回溯建库概述、回溯建库对象及用户信息需求分析的基础上，以等额投入的方式客观地分析了回溯建库的效益问题。  相似文献   

中美商情数据库建设比较研究     

杨奕虹  武夷山 《情报学报》2003,22(3):315-320

美国是商情数据库建设起步最早、发展最快的国家 ,因此研究美国商情数据库建设及其发展对加速我国商情数据库的建设有着实际的意义。本文通过对中美两国商情数据库发展概况的比较研究 ,发现我国商情数据库建设中存在的问题 ,并提出几点建议  相似文献   

Extensions to the STAIRS Study—Empirical Evidence for the Hypothesised Ineffectiveness of Boolean Queries in Large Full-Text Databases     

Eero Sormunen 《Information Retrieval》2001,4(3-4):257-273

The STAIRS study conducted by Blair and Maron in the mid-80's is a milestone in the history of IR evaluation. Blair and Maron made strong conclusion about the inadequacy of free-text searching large databases, and their study has been widely referred in the literature to justify the problems of effectiveness in IR systems. However, some critics of the study have plausibly pointed out that the ineffectiveness conclusions were not solidly based on empirical data.This paper introduces a new theoretical and empirical approach to study the problems of high recall searching in large databases and reports the results of a case experiment. The findings verify some of the hypothetical conclusions introduced in the STAIRS study, and expands the picture of falling performance. It is shown that low precision in high recall searching is unavoidable in exact-match Boolean searching since even major concepts are often expressed implicitly in relevant documents. The author suggests that the problem could be reduced in facet-based best-match searching.  相似文献   

基于Java技术解决数字图书馆异构平台数据库访问   总被引：10，自引：0，他引：10  

刘科  郑巧英  徐汝兴 《现代图书情报技术》2002,18(3):10-13

文章简要介绍和分析了几种基于Web的数据库访问技术及其局限性。详细论述了JSP/Serlet和JDBC技术原理在数据库访问中的实现过程和实现机制。论述了基于Java技术的Browser-Server多层体系架构模型的图书馆异构平台数据源访问系统解决方案。  相似文献   

构建地方文献回溯书目数据库初探   总被引：10，自引：1，他引：9  

李玲 《图书馆论坛》2002,22(4):52-54

文章从地方文献书目数据库的体系、建库的特点和模式等方面就回溯建库的一些问题进行了初步的探讨。  相似文献   

以豆瓣网和中国国家图书馆为案例的网上书目推荐系统研究   总被引：3，自引：0，他引：3  

范旭 《图书馆学研究》2008,(8)

现有网上书目推荐系统根据应用服务理念的不同可以分为Web2．0型和传统型,根据其使用的过滤技术可以分为非个性化推荐、基于产品属性的推荐、基于相关用户的推荐和基于用户知识结构的推荐。书目推荐的开展应当遵循针对性、可行性、时效性这三个原则。本文通过对豆瓣网和中国国家图书馆的网上书目推荐服务的调查,从有用性、易用性、满意度、可找到性、普及性和可靠性六个方面对它们进行了比较,概括了传统型网上书目推荐系统的优势和改进意见。  相似文献   

我国高校图书馆特色数据库建设现状及发展策略研究   总被引：14，自引：1，他引：13  

刘莹 《图书馆学研究》2008,(7)

本文采用文献调查分析和网络调查分析等方法,调查了我国高校图书馆特色数据库建设的现状,所取得的成绩和存在的问题,提出了完善我国高校特色数据库发展的建议。  相似文献   

图像数字化整合技术应用研究     

吴涛  郭金玲 《高校图书馆工作》2008,28(2):41-43

系统地总结和研究了图像数字化技术应用的新成果和经验,探讨了图像数字化加工过程中诸多环节的关键技术问题,并较为具体地给出了解决的方案.参考文献3.  相似文献   

The Future of the Past: Archaeology and Anthropology on the World Wide Web     

John W. Hoopes 《Archives and Museum Informatics》1997,11(2):87-105

In the final scene of Raiders of the Lost Ark, a crate containing the object of Indiana Jones' quest is wheeled into an immense warehouse for indefinite storage and questionable research access. Unfortunately, this fate is not all that far from reality. Collections of archaeological and ethnographic materials ranging from stone axes, broken potsherds, and carved monuments to baskets, ceremonial masks, and skin canoes have been held by museums collections since the Renaissance. However, their inestimable value and unique conservation and curatorial requirements often conspire to remove them from the reach of all but the most diligent scholars. The potential of the Web to enhance the quality of research on archaeological and ethnographic collections is enormous. This paper will examine ways that one can use the Web to enhance research and improve access to a variety of materials; while there are many other resources for archaeology available on the Web, this paper focusses on museum-related sites. It will also explore the potential of the Web for innovative research strategies. Digitization of catalogs, associated documents, and images to help one locate and study collections and specific artifacts are just one approach. Others include the connection of devices to the Web, such as cameras and microscopes, the creation of virtual reference collections, and the establishment of research networks that will enhance the identification and analysis of material culture. This paper will also consider the role the Web could play in issues of cultural property, contributing to and in many ways intensifying ongoing debates of ownership, curation, conservation, and repatriation of sensitive materials.  相似文献   

国家档案资源书目控制模式分析   总被引：1，自引：0，他引：1  

谭必勇 《山西档案》2006,(2):22-24

国家档案资源的书目控制的目的，其一在于加强国家档案资源的监督与控制，其二便于国家档案资源的开发与共享。文章从探讨国家档案资源书目控制的必要性入手，分析了两种不同的国家档案资源书目控制模式的优势与不足，并指出了构建国家档案资源书目控制模式中的关键问题。  相似文献