首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 187 毫秒
1.
在情报处理与传递的电子网络化进程中,众多具有特色的跨国联网信息机构涌入情报服务市场,形成世界范围的书目信息资源共享,也正导致情报检索系统的大变革,对目前的检索语言提出了挑战。本文介绍并分析了各检索系统近年来采用的代表着检索语言发展趋势的相应对策和有关检索语言研究项目,讨论了情报检索词汇的联机显示、词汇兼容、自由词的使用、检索语言及系统的易用与透明化手段等。为了提供集系统语言、检索语言和用户语言为一体的,能由用户用于查寻并组织自己的作品(即经过分析综和的检索结果),且再生产和传送出创造性作品的语言,本文提出一种以高度专业化的知识库为基础的检索语言,在对现在各检索词汇、用户提问、文献、专家经验、学科分类体系以及各种工具书(如机读词典)进行分析的基础上产生,满足两种最基本的需要:允许用户在检索提问中使用自然语言,支持标引、查寻、检索、浏览、组织情报全过程。本文还对中国未来检索语言的研究与发展路向提出了几点建议。  相似文献   

2.
在我国的各类读群中,大学生是属于化层次较高,各方面索质较好的一群,他们也将是我国今后利用情报资源最主要的用户。但从目前的情况看,火学生的情报意识并不很强,而献检索与利用的能力更差,所以对大学生进行情报教育仍然是一项很重要的工作。  相似文献   

3.
我国分类检索语言计算机化的回顾与前瞻   总被引:4,自引:1,他引:3  
朱丽 《图书馆》1997,(1):28-31
本文回顾了国内分类检索语言计算机化的进展与成果,并通过国内外对比研究指出,加快分类法机读文档建设及加强机检适应性,将是未来发展的重要方向  相似文献   

4.
USMARC向UNIMARC格式转换系统的实现   总被引:2,自引:2,他引:0  
本文介绍了一种可用的图书情报机读记录格式转换软件。该软件可将USMARC数据自动转换为UNIMARC数据;它既可以处理来自UNIMARC磁带的数据.也可以处理来自CDROM的UNIMARC数据.该系统巳成功地转换了1800多条书目记录、本文还阐述了格式转换技术在图书情报自动化中的重要作用和实际意义  相似文献   

5.
高校情报用户机检教育的教学重点分析许萍(西北师范大学)从我国计算机检索的发展过程分析,目前机检事业已初具规模,但却存在着十分尖锐的矛盾,即我国机检事业的投入与产出之间存在着巨大差距。先进的情报处理设备同落后的情报意识之间形成了尖锐矛盾。由于机检教育尚...  相似文献   

6.
电子期刊又叫机读期刊,它是一种借助数字语言通过编码和程序设计,把文字、图像、声音等变成计算机可识别的信息,并存储在磁带、磁盘、光盘等媒体上所形成的一种电子出版物。最早出版发行的电子期刊是1976年10月的EIES。20世纪70年代,联机的电子期刊——机读磁带版书目数据库出现,并通过大型联机系统为世界各地检索利用。  相似文献   

7.
网络环境下《中图法》发展及第五版述要   总被引:3,自引:0,他引:3  
网络环境下,<中图法>历经了机读化、电子化、网络化的发展过程.本文对分类法与主题法机读化、电子化、网络化过程中的关键技术方法进行了总结分析,对其相应的表现形式即机读数据库、电子版、Web版的特点、功能进行了介绍.同时,对网络环境下<中图法>的修订概况、修订思路以及第五版特点介绍和说明.  相似文献   

8.
情报语言漫笔(F)   总被引:5,自引:1,他引:4  
张琪玉先生《情报语言漫笔》系列之六,收录针对网络信息资源的情报语言专题文章6篇。  相似文献   

9.
吴丹 《图书情报工作》2009,53(13):120-81
查询翻译歧义性问题是影响跨语言信息检索结果的关键,因此针对查询翻译的消歧研究已成为信息检索领域的研究热点。在对现有研究与应用调研的基础上,详细分析四类自动消歧方法,分别是:对查询进行结构化处理、通过语言分析帮助消歧、借助机读化语言资源进行消歧以及通过人机交互消歧,以期为跨语言信息检索查询翻译提供较好的消歧方法。  相似文献   

10.
情报人-机-环境系统工程基础研究   总被引:2,自引:1,他引:1  
文章从人-机-环境系统工程理论出发,将情报工作视为人-机-环境系统来研究,提出了主要研究内容,着重分析了该系统中人的心理、行为特征,人机相互作用,影响情报行为的环境因素。最后,提出了情报人-机-环境系统研究发展的方向。  相似文献   

11.
近年高校图书馆文献资源需求利用分析   总被引:19,自引:1,他引:18  
搜集上世纪90年代以来有关高校读者文献需求利用的文献,分析高校图书馆馆藏结构变化后,馆藏资源的需求变化情况,包括对文献语种,传统印刷型文献、机读文献与电子型文献的需求状态。  相似文献   

12.
邱悦 《图书情报工作》2006,50(10):82-86
认为网络语言和用户语言的多样化使跨语言信息检索成为一个重要的研究领域,该领域所采用的技术主要包括基于机器翻译的方法、基于机读双语词典的方法、基于主题词表的方法以及基于平行语料库的方法。跨语言信息检索的实现除以技术为基础外,还需要查询扩展技术的辅助。  相似文献   

13.
面对基于双语词典的跨语言检索查询翻译方法中固有的一对多等翻译模糊问题,已有研究成果存在对于非组合型复合词无法进行准确翻译、双语词典和其他翻译资源联合使用引入较大计算开销等弊端。为建立英汉双向跨语言检索实用性系统,在现有的一部包含若干科技词汇和短语的双语科技词典的基础上,着重研究如何引入平行语料来改进已有的双语词典问题。目标是生成一部基于句对齐平行语料的科技类双语概率词典,为跨语言检索查询翻译消歧提供实时性支持。  相似文献   

14.
党报中的"新联+评论"组合报道,担负着既传播事实信息,又传播理性信息的双重功能.如何使之更具有可读性,是应当给予认真总结和积极探索的.  相似文献   

15.
This article discusses best-selling science books, the characteristics of the audience for popular science books, and the role of books within science popularization and science education. Best-selling science books have been rare, but generally readable. Regional books, also important sources of scientific information, aim at much smaller, far more price-sensitive audiences. Many successful regional, nontechnical science books are readable, heavily illustrated, and in some cases, cross-disciplinary. To increase the attentive audience for scientific information, improvement in science education is necessary, and the most efficacious role for scientific institutions may be the production of materials that can be easily incorporated into school curricula. He is the author of several nontechnical guides to the geology of Kansas and teaches science writing at the University of Kansas School of Journalism and Mass Communications A slightly different version of this paper was presented at the joint meeting of the Association of Earth Science éditors, European Association of Editors, and the Council of Biology Editors, Ottawa, Ontario, September 1989.  相似文献   

16.
加强高校图书馆数据库建设   总被引:4,自引:0,他引:4  
高校图书馆自动化方面首先要做的工作是制作标准机读目录数据。以此达到社会性的数据资源共享。随着信息产业的日益发展,图书馆对教育、科研的作用越来越重要。  相似文献   

17.
Abstract

The article examined the pattern and distribution of the secondary information, systems and services in China. The objects of the study include the governments role and relevant policies, the distribution of discipline-oriented systems, the development from printed material to machine readable to data bases and the influence of transition to a market economy on the operation of current systems. The study showed that the structure of the secondary information systems was established and the government has played a dominant role in developing and maintaining the systems. The article further discussed the challenge of a new social and economic environment to the systems and the possible expansion of new products and services.  相似文献   

18.
This study examines how the readability of scientific discourses changes over time and to what extent readability can explain scientific impact in terms of citation counts. The basis are representative datasets of 135,502 abstracts from academic research papers pertaining to twelve technologies of different maturity. Using three different measures of readability, it is found that the language of the abstracts has become more complex over time. Across all technologies, less easily readable texts are more likely to receive at least one citation, while the effects are most pronounced for comparatively immature research streams. Among the more mature or larger discourses, the abstracts of the top 10% and 1% of the most often cited articles are significantly less readable. It remains open to what extent readability actually influences future citations and how much of the relationship is causal. If readability indeed drives citations, the results imply that scientists have an incentive to (artificially) reduce the readability of their abstracts in order to signal quality and competence to readers—both to get noticed at all and to attract more citations. This may mean a prisoner dilemma in academic (abstract) writing, where authors intentionally but unnecessarily complicate the way in which they communicate their work.  相似文献   

19.
Reimsbach  Michael  Aycock  John 《Archival Science》2021,21(3):281-294

Having content in an archive is of limited value if it cannot be read and used. As a case study of extricating information from obsolete media, making it readable once again through deep learning techniques, we examine the Cauzin Softstrip: one of the first two-dimensional bar codes, released in 1985 by Cauzin Systems, which could be used for encoding all manner of digital data. Softstrips occupy a curious middle ground, as they were both physical and digital. The bar codes were printed on paper, and in that sense are no different in an archival way than any printed material. Softstrips can be found in old computer magazines, computer books, and booklets of software Cauzin produced. However, managing the digital nature of these physical artifacts falls within the scope of digital curation. To make the information on them readable and useful, the digital information needs to be extracted, which originally would have occurred using a physical Cauzin Softstrip reader. Obtaining a working Softstrip reader is already extremely difficult and will most likely be impossible in the coming years. In order to extract the encoded data, we created a digital Softstrip reader, making Softstrip data accessible without needing a physical reader. Our decoding strategy is able to decode over 91% of the 1229 Softstrips in our Softstrip corpus; this rises to 99% if we only consider Softstrip images produced under controlled conditions. Furthermore, we later acquired another set of 117 Softstrips and we were able to decode nearly 95% of them with no adjustments to the decoder. These excellent results underscore the fact that technology like deep learning is readily accessible to non-experts; we obtained these results using a convolutional neural network, even though neither of the authors are expert in the area.

  相似文献   

20.
论文阐述了网络环境下图书馆编目工作出现的一些新特点:编目对象的范围扩大至网络信息,各种编目规则及相关规范进行了更新,机读格式不断修改,新型的元数据格式涌现,规范控制日益受重视。论文同时对未来的编目工作提出一些思考与展望。  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号