Visualizing and mapping the intellectual structure of information retrieval

Information retrieval is a long established subfield of library and information science. Since its inception in the early- to mid -1950s, it has grown as a result, in part, of well-regarded retrieval system evaluation exercises/campaigns, the proliferation of Web search engines, and the expansion of digital libraries. Although researchers have examined the intellectual structure and nature of the general field of library and information science, the same cannot be said about the subfield of information retrieval. We address that in this work by sketching the information retrieval intellectual landscape through visualizations of citation behaviors. Citation data for 10 years (2000-2009) were retrieved from the Web of Science and analyzed using existing visualization techniques. Our results address information retrieval’s co-authorship network, highly productive authors, highly cited journals and papers, author-assigned keywords, active institutions, and the import of ideas from other disciplines.     

网络环境下对高校文献检索课的若干思考

本文论述了网络信息检索的发展及对文献检索的影响,提出了网络环境下开展高校文献检索课程的几点措施及其发展趋势。     

模糊理论在信息检索上的应用

模糊理论是为了解决真实世界中普遍存在的模糊现象而发展的一门学问,模糊理论以模糊集合为基础,基本精神是接受模糊性现象存在的事实,而以处理概念模糊不确定的事物为其研究目标,并积极地将其严密量化成计算机可以处理的信息。本文首先简介模糊理论,而后将模糊理论在信息检索上的应用做一探讨,希望通过本文,使大学对模糊理论有更深入的了解,并且思考如何将之更广泛地应用于图书信息学上。     

论信息商品的价格理论

文章从信息商品的定价理论研究现状出发,分析了信息商品定价的主要问题,并引入盈余的概念,构筑了信息商品的盈余定价理论。在此基础上,还就信息商品交易中买卖双方有关信息商品价格的估算、议价谈判及影响信息商品价格的因素等进行了综合探讨。     

基于集合理论的信息检索模型

本文围绕信息检索模型的数学表示，详细讨论了基于集合理论的三种模型；对简单布尔模型的基本原理及其优缺点进行了评价，并采用矢量的方法对扩展布尔检索模型进行探讨；最后重点介绍了以模糊集合理论为基础的模糊集合模型。     

中国极地研究知识图谱

利用前沿信息计量工具对维普数据库中《极地研究》13年载文进行分析,以可视化知识图谱的方式展示我国极地研究领域的研究热点与发文网络等。通过研究发现我国研究热点主要集中在南极、北极以及海冰等方面,同时极地研究领域学者间合作广泛。     

多媒体信息检索技术略论

由于传统的信息检索技术不适用于多媒体信息的检索,因此,本文论述了多媒体信息（图形、图像、视频、声音）的检索技术。     

国内数量经济学2009年研究热点分析——南京大学知识图谱研究组系列论文

利用知识图谱工具对CSSCI数据库中2009年数量经济学文献进行分析,以可视化图谱的形式展示了2009年我国数量经济学的研究热点以及它们之间的交叉关系,发现2009年数量经济学的研究热点主要有经济增长、通货膨胀、面板数据、博弈、投入产出分析、供应链和评价等。     

信息时代信息检索工具发展的新走向

通过分析传统检索工具和电子、网络型检索工具的优势和不足,可以看出传统检索工具是电子、网络型检索工具迅速发展的基础,二者相互补充、相互融合、长期共存。     

竞争情报研究方法体系的架构与选用

本文初步构建了竞争情报研究方法体系的框架,并尝试性探索了竞争情报主要研究范畴可使用的分析方法。     

Division of labour and sharing of knowledge for synchronous collaborative information retrieval

Synchronous collaborative information retrieval (SCIR) is concerned with supporting two or more users who search together at the same time in order to satisfy a shared information need. SCIR systems represent a paradigmatic shift in the way we view information retrieval, moving from an individual to a group process and as such the development of novel IR techniques is needed to support this. In this article we present what we believe are two key concepts for the development of effective SCIR namely division of labour (DoL) and sharing of knowledge (SoK). Together these concepts enable coordinated SCIR such that redundancy across group members is reduced whilst enabling each group member to benefit from the discoveries of their collaborators. In this article we outline techniques from state-of-the-art SCIR systems which support these two concepts, primarily through the provision of awareness widgets. We then outline some of our own work into system-mediated techniques for division of labour and sharing of knowledge in SCIR. Finally we conclude with a discussion on some possible future trends for these two coordination techniques.     

论跨语言网络信息检索技术系统：以Mulinex为例

文章结合Mulinex系统，阐述了跨语言网络信息检索技术系统的开发背景和目标，分析了系统功能，结构和工作原理。     

INTERNET信息检索系统的功能

本文论述了Internet网上信息及信息检索系统的特点,并对网上著名的六大信息检索系统及其检索方式进行了比较分析。     

Review of “Search Engines: Information Retrieval in Practice” by Croft,Metzler and Strohman

Despite the common public use of Web search engines, their internal design details mostly remain as a black art. The speculation is that there is a significant knowledge gap between what is published by academia and what is guarded behind the doors of large-scale search companies. “Search Engines: Information Retrieval in Practice” is one of the few books that make an attempt to cover issues involved in search engine design and is probably the most comprehensive book published so far on this topic. Unfortunately, the book fails to be a complete search engine guide as its content is dominated by the topics from information retrieval, text processing, and statistics. More precisely, the focus of the book is biased towards the “search” rather than the “engines” as, in most places, discussions on effectiveness dominate those on efficiency by a great margin. However, the book stands as a very solid IR book.     

中文搜索引擎的现状与发展

随着我国互联网络的发展，网上的中文信息资源和上网的中文用户大量增加，迫切需要一种能提供中文界面，能搜索网上中文站点资源的搜索引擎，以满足广大用户对中文信息的查询需求。在这样的形势下，中文搜索引擎便应运而生了。本文对几种常用的中文搜索引擎作了分析评价，指出了中文搜索引擎现存的问题，并对中文搜索引擎今后的发展提出了几点建议。     

Soft approaches to information access on the Web: An introduction to the special issue

Soft Computing (SC) tools present a great potential in real-life problems related with engineering, industrial applications, medicine, finances, etc. In this special issue we present a set of seven papers that report original research about the use of SC techniques to solve the problems in the field of information access on the Web.     

学位论文的特点及其检索方法

本文阐述了学位论文的特点与DAI的著录形式及其检索方法。