AACR2第9章应用于电子资源 MARC21格式的著录分析*     

毛世蓉  邹勇 《现代图书情报技术》2005,21(3):90-93

介绍了AACR2第9章修订版的特点和内容,并结合MARC21格式对电子资源几个特殊字段的著录要点进行分析。  相似文献   

An approach to web-based Personal Health Records filtering using fuzzy prototypes and data quality criteria     

Francisco P. Romero  Ismael CaballeroJesus Serrano-Guerrero  Jose A. Olivas 《Information processing & management》2012

Nowadays, new ways of managing and accessing to health-care information are continuously appearing. Web-based Personal Health Records (web PHRs) have the potential to make data about health-care available to clinicians, researchers and students in different medical contexts and applications. Therefore, the amount of web PHRs accessible through Internet has grown enormously and as a result health-care professionals are currently burdened with more and more data. It’s probable that these data, unfortunately, have not always the adequate levels of quality, making that their work cannot always be as successful as expected. As a way of alleviating this fact, the present work is focused on improving the document filtering results in the context of web PHRs management. To achieve this goal, a new kind of document filtering model is proposed. This model is based on fuzzy prototypes which are defined by means of conceptual prototypes. These prototypes are obtained by using a data quality analysis of documents. This analysis guarantees that filtered information will be relevant enough for the information user. The complete model provides an efficient strategy of document filtering that can be very useful when it is necessary to deal with a constant flow of new information.  相似文献   

BALIS原文传递服务系统管理探析   总被引：2，自引：0，他引：2  

丁永玲  黄智武 《大学图书馆学报》2010,28(5)

经历了近三年的发展,BALIS原文传递系统不但扩充了成员馆数量,也与社科院研究生院、国家图书馆开展合作,其服务在北京地区得到广泛应用,用户注册数、使用量等各项指标快速增长。这与系统整体的管理特点密不可分,人性化与科学发展、强调协作的分布式管理、充分的激励机制,无不对原文传递服务的整体发展起到积极的促进作用。充分发扬优秀的管理经验,将有利于促进高校间的原文传递服务,平衡馆藏建设,深化资源共建共享。  相似文献   

新时期我国文献传递服务的发展现状及路向分析   总被引：4，自引：0，他引：4  

刘巧英 《图书馆建设》2010,(5)

我国文献传递服务从上世纪20年代开始发展到现在,已呈现出欣欣向荣的发展态势。但在新时期逐步显现出发展不平衡、资源重复建设、缺少协调和评价、技术难突破等问题。为突破这些制约我国文献传递有效前行的瓶颈,新时期我国文献传递服务呈现出下列发展态势:直接面向用户的非中介式传递方式是发展趋势;地区—全国文献传递系统的建立是最佳选择;开辟特种文献及特色文献传递渠道是努力方向;产业化文献传递道路是必然归宿。  相似文献   

利用文档加密技术防止企业知识资产的外泄     

陈远  王菲菲 《图书情报知识》2010,(2)

企业知识资产不仅需要创造,同样也需要保护。本文分析了常用的文档、操作系统、口令、物理隔离等加密手段的局限,提出了基于企业利益的文档安全管理目标,即实时透明加密、多种介质兼容、集中远程控制、操作程序限制、身份权限验证、动态授权管理六个方面;探讨了文档安全管理系统的工作原理和系统组成及其在企业中的应用策略,即采用数据库管理文档的方式、RBAC与DAC结合的动态授权机制以及自动透明加密技术策略等等。  相似文献   

网络环境下文献传递模式的研究与构想     

杜春光 《新世纪图书馆》2010,(3):64-66

文献传递解决了用户对于一次文献的需求。当前在国内普遍存在四种文献传递的模式。随着数字图书馆解决方案的成熟,通过各情报机构及商业机构的协调,将最终实现方便快捷的传递模式。  相似文献   

论网络环境下图书馆信息资源建设   总被引：19，自引：1，他引：18  

刘晓洁 《高校图书馆工作》2005,25(4):43-44

文章分析了当前图书馆资源建设外部环境的特点,并对信息社会馆藏资源建设的新模式以及今后资源共建共享等问题进行了探讨。参考文献4。  相似文献   

海阔凭鱼跃天高任鸟飞--论网络环境下文献检索课教师的出路   总被引：2，自引：0，他引：2  

肖秋红 《高校图书馆工作》2005,25(6):82-83,86

文章站在现代信息技术发展的角度,提出网络环境下文献检索课教师所肩负的重任.论述文检课教师面临网络信息技术的挑战,如何抓住机遇,加强自身综合素质的培养,积极开展教学研究,开辟文献检索领域的新天地.  相似文献   

试论图书馆的非中介性文献传递服务   总被引：8，自引：1，他引：7  

范丽莉 《大学图书馆学报》2004,22(2):43-45,48

非中介性文献传递服务是国外图书馆普遍采用的一种文献传递方式,它消除了读者和文献供应商之间馆员介入的中转环节,从而带来时间和成本上的节约,极大地提高了服务效率。文章以国外一些大学图书馆开展该项服务的有关资料来分析非中介性文献传递服务的利弊,讨论该服务开展的必要性和可行性。  相似文献   

Web document summarization by exploiting social context with matrix co-factorization     

Minh-Tien Nguyen  Viet Cuong Tran  Xuan Hoai Nguyen  Le-Minh Nguyen 《Information processing & management》2019,56(3):495-515

In the context of social media, users usually post relevant information corresponding to the contents of events mentioned in a Web document. This information posses two important values in that (i) it reflects the content of an event and (ii) it shares hidden topics with sentences in the main document. In this paper, we present a novel model to capture the nature of relationships between document sentences and post information (comments or tweets) in sharing hidden topics for summarization of Web documents by utilizing relevant post information. Unlike previous methods which are usually based on hand-crafted features, our approach ranks document sentences and user posts based on their importance to the topics. The sentence-user-post relation is formulated in a share topic matrix, which presents their mutual reinforcement support. Our proposed matrix co-factorization algorithm computes the score of each document sentence and user post and extracts the top ranked document sentences and comments (or tweets) as a summary. We apply the model to the task of summarization on three datasets in two languages, English and Vietnamese, of social context summarization and also on DUC 2004 (a standard corpus of the traditional summarization task). According to the experimental results, our model significantly outperforms the basic matrix factorization and achieves competitive ROUGE-scores with state-of-the-art methods.  相似文献