共查询到20条相似文献，搜索用时 15 毫秒
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从文献检索到信息检索——网络环境下检索课教学内容与方法的调整 总被引：21，自引：0，他引：21
从文献检索到信息检索最大的变化 :一是由文献单元向信息单元为基础的组织方式的改变 ;二是由手工分类、主题标引、著者标引经过机器的主题词、自由词抽取、标引发展到全文标引乃至超文本检索。网络技术、超媒体技术和智能技术等是促其变化的关键。作为一门学科的教学必须创建以CAI课件为主导的实践教学方法和建立信息检索课程的基本框架体系。参考文献 4。 相似文献
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针对实践中查词效率和查目效率难以兼顾的两难问题,提出运用概括性强的类称词替代下属的大量特称词,以控制词表的规模;允许各文献情报机构在标引时根据需要将被替代的专指性强的特称词作为类称词的标识词使用,以控制检索系统中相同主题词款目的数量。 相似文献
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试论信息检索途径的多样性 总被引：7，自引：0，他引：7
有感于平时上信息检索课找不到一泰关于信息检索途径方面的完整资料，于是自己动手归纳。文章在简要介绍信息检索概念和检索原理的基础上，从文献的形式特征和内容特征两个方面提出了多种信息检索途径，如题名途径、著者途径、序号途径、引文途径、“名称”途径、来源途径、关联途径、年代途径、分类号途径、摘要途径、代码途径、主题词途径，主题词途径包括标题词途径、元词途径、叙词途径、关键词途径等等。 相似文献
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[目的/意义]针对电子舞曲数字资源急剧增长带来的资源组织与检索需求匹配度低的问题,尝试构建电子舞曲信息资源检索需求模型,以指导新网络环境下的电子舞曲信息资源组织实践活动。[方法/过程]通过对国内主流电子舞曲音乐平台的检索实验,得出电子舞曲检索需求访谈提纲,进而运用扎根理论探究电子舞曲听众的音乐信息检索需求并建构相应的信息检索需求模型。[结果/结论]研究发现,电子舞曲听众的需求具有"成长性",这种"成长性"连接了听众音乐信息检索需求的审美主体（听众）和审美客体（音乐）两个维度,而促生该"成长性"的内因是信息需求的马太效应。研究指出电子舞曲的资源组织需兼顾主观感受、外部描述、内容要素和生产过程等核心维度,为新网络环境下电子舞曲信息资源组织提供了参考依据。 相似文献
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国家图书馆中文名称规范的探讨 总被引：2，自引：0，他引：2
本文回顾了国图中文名称规范的历史,并指出个人名称标目学科附加成分存在的问题,提出个人名称非规范标目附加成分的重要性,分析虚拟团体名称,最后对中文名称规范工作提出4点建议。 相似文献
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[目的/意义]以情报学为例,探索基于社会化问答网站热点的学科认知特点挖掘方法及其可行性。通过总结归纳知乎用户对情报学的知识期待和学科认知,为情报学学科建设提供特定参考。[方法/过程]以知乎情报学话题下的"精华"讨论内容作为分析对象,运用聚类分析、多维尺度分析等方法挖掘关注热点,并对这些关注热点的自身属性、相互关系和核心程度等特征进行分析与探究。[结果/结论]知乎的情报学关注热点可分为信息检索与搜索引擎、网络营销与电子商务等7类,反映出大众对情报学的技术、商业、学科、社会4方面的知识需求,进而构建出信息技术、现实应用、信息社会3个维度的学科认知特点。 相似文献
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论述针对不同人群信息检索需求,提高信息检索速度和效率,将个人的信息检索行为在关注域和角色上给予划分,建立角色Agent池和关注域Agent池。信息检索行为通过Agent池之间的垂直合作以及平行合作实现。基于关注域的Multi-Agent信息检索是由充分合作的Agent组成的,可以高效地建立知识库,提高检索效率,实验证明其查准率较高。 相似文献
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对情报检索语言“标引耦合”这一普遍现象的原理进行了初步研究,并将其运用于情报检索语言词汇对应关系的研究及检索工具查全率与查准率的测定。 相似文献
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针对Web信息检索现状和当前智能检索系统存在的问题，提出一个“先控”智能检索系统，面向基础用户，充分利用质量较高的网络资源分类目录体系，辅助形象化的“知识地图”显示，快速准确地定位用户的信息需求范畴，以提高检索效率和检索精度，同时分析了实现技术和尚待解决的问题。 相似文献
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主题法在网络信息组织中的应用 总被引：17，自引：0，他引：17
主题法包括关键词法，标题词法，叙词法等。主题法作为两种主要的情报检索语言之一，其功用在传统的文献检索中已经得到了充分的体现。本文论述了以上三种语言的特点以及在网络信息组织中的应用方法。 相似文献
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《The Reference Librarian》2013,54(49-50):135-145
The purpose of this chapter is to address the issues of information seeking behavior within a context of an information poor life style. Several factors can be attributed to an information poor world. For example, it is one in which the mass media are not viewed as providers of useful information. Moreover, this is a world in which there is a parsimony of helpful interpersonal channels. Thus, both formal and personal sources are devoid of everyday practical information of the kind that is needed by poor people. In addressing reasons to explain this phenomenon, knowledge gap theory is examined. The conclusion drawn from this analysis is that, although the mass media are perceived as sources of information for some (the "media rich"), they do not respond to the needs of the poor. Unfortunately, the role that interpersonal sources might play in this process, have not been adequately addressed by knowledge gap researchers. 相似文献
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《Cataloging & classification quarterly》2013,51(2):45-50
In reclassifying a Library and Information Science library from DDC to LC, an attempt was made to concentrate books with related subject headings on the shelf for maximum shelf retrieval even in cases where the Subject Authorities or C.I.P. assign them varying numbers. Most of the shelf concentration was achieved either by selecting a single number for a given heading and then classifying all books with the heading in that number or by replacing the standard LC number for a heading with one which placed it together with related books on the shelf. 相似文献
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《Government Information Quarterly》2001,18(3):195-208
The need to improve information access on the Web has resulted in Illinois’ implementation of lexicographer Dr. Jessica Milstead’s subject tree for the Find-It! Illinois Program. In 1999, when the Illinois State Library joined four other states in implementing a state Government Information Locator Service (GILS) project, developing a controlled vocabulary became an essential component for maximizing retrieval of government information. Furthermore, application of library cataloging tools such as the Library of Congress Subject Headings (LCSH) is insufficient for online retrieval. An analysis of the structure and content of Dr. Milstead’s subject tree reveals the importance of new tools for improving online access methods. Illinois’ implementation of Dr. Milstead’s subject tree exposed the interest for nationwide application. The Illinois subject tree has been named the “Jessica Tree” to convey its expanded utility. The national adoption of a controlled vocabulary for retrieving state government information online will require collaboration among all states, so that the vision of a Find-It! America can be actualized. 相似文献
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通过控制提高检索效率是情报语言学研究的根本目的。在计算机化的“自然语言检索系统”中,控制的手段、方法和技术发生了变化,这些变化开辟了情报语言学研究的新领域:主题词词典、类主题词典、后控词表和术语等。 相似文献
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[目的/意义]推动信息检索课的教学改革,为高校图书馆嵌入式学科服务找到了最佳切入点.[方法/过程]利用LibGuides平台,创建信息检索课课程导引,并开展嵌入网络教学系统的具体实践,采用问卷调查、点击量分析的方法,检验该实践的可行性以及实用价值.[结果/结论]总结教师创建课程导引的优势、宣传策略的效果以及开发本土学科服务平台的必要性,同时,指出利用LibGuides平台,嵌入学校网络教学以及管理系统,是提升图书馆学科服务的一个有效途径. 相似文献
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《Government Information Quarterly》2023,40(2):101805
In the era of big data, data creates new added value by collecting, analyzing, and transforming the thoughts and actions of economic members and creating insights that can predict the future. This means that in the near future, data-driven decisions based on data, rather than subjectivity or experience, will be the driving force behind society.However, since valuable and useful data is bound to be generated from personal information, how to safely utilize personal information is becoming an important topic in the big data era. To protect personal information in this environment, data services and database providers have increased their focus on the implementation of de-identification, a technique that can protect personal information while maintaining the usefulness of the data. Moreover, many countries have introduced new policies and laws focusing on the de-identification of personal information.Accordingly, this paper compares and analyzes how the European Union, the United States, Japan, and South Korea have recently adopted the concept of de-identification in their own personal information protection laws, and presents common trends and implications. As a comparative framework, each country's conceptual classification system related to de-identification, legal treatment, data controller obligations, and de-identification procedures was included.This study identifies the shifts made in each country's regulatory system following the introduction of the concept of de-identification. These include a shift from a binary approach to an approach that considers the identifiability spectrum, from a belief in anonymization to regulation from a risk management perspective, and from a focus on de-identification methods, to responsibility for follow-up management.This study contributes to the establishment of specialized knowledge of de-identification practices by empirically examining the current status of de-identification information-related legal systems adopted by major countries/regions. Also, the study proved the actualization of theory by confirming that the de-identification policy approach from the perspective of risk management is actually applied to the laws of each country. In addition, the attempt to present a framework for systematic comparison of de-identification systems by country provides a new perspective that can trace the trend of future de-identification system changes on a consistent basis. In addition, this study brings the gradual expansion of data policy research by expanding the research on de-identified information, which has been studied mainly in Europe and the United States, to case studies in Japan and South Korea. 相似文献