基于《中图法》的自动分类研究现状与展望

将人工智能研究领域中的文本自动分类技术应用于信息资源管理领域是当前的研究重点之一,而目前信息资源管理领域具有体系结构严格、类目数量巨大、类目层次众多等特点。本文充分考虑这些特点,针对《中国图书馆图书分类法》分类体系下文本自动分类研究的现状,从研究目的、类目体系、资源类型等方面,参考国外相关研究的成果和方法予以分析和评价;结合国外相关研究的最新成果,提出我国在《中国图书馆图书分类法》分类体系下应用文本自动分类技术时应注意的问题及今后的研究方向。     

1999～2008年国内文本分类研究文献计量分析

文本分类作为处理和组织大量文本数据的关键技术,在信息过滤、信息检索、搜索引擎、数字图书馆等领域有着广泛的应用前景.基于文献计量法对1999～2008年间文本分类相关研究论文作了统计分析,按基础理论研究和应用研究两部分分别进行了深入的探讨,前者涉及了文本分类过程中的各种关键技术:文本预处理、文本表示、特征降维、分类算法、效果评估,后者则包括文本分类在各领域的应用研究和文本分类系统的设计与开发.文章深入地揭示了文本分类研究内容、发展历程、研究热点和理论成果,并对未来的研究趋势进行了预测.     

中文文本情感倾向分析研究

文章首先采用文献计量的方法,统计分析了中文文本情感领域相关的研究论文并给出当前研究框架;接着分类研究了中文文本情感分析的代表性成果,按基础理论研究和应用研究两部分进行深入探讨,前者包括词语和文档情感极性判断、细粒度情感信息抽取、情感分析资源建设,后者则包括其在各领域的应用研究及相关商业系统;最后对中文文本情感倾向分析进行了展望。     

美国著名智库文本成果研究——以人工智能领域为例

从文本视角分析智库文本型成果,可为智库研究、决策分析等领域提供新思路。文章基于自然语言处理技术以及可视化计量分析对美国主流智库的人工智能研究文献进行研究,并结合时事政策事件等进行综合分析,洞察美国智库背后特点,掌握该领域内智库专家的思想动态,为我国智库研究提供参考。     

国内外文本分类研究计量分析与综述

运用文献计量分析方法、计算机统计分析技术、社会网络分析软件对文本分类领域的历史文献进行计量分析及可视化,通过绘制文献数量分布图、核心关键词的共现网络,挖掘文本分类领域的发展趋势、目前研究概况、热点及未来研究趋势等信息,并对文本分类领域研究热点和未来研究趋势进行综述。     

Mashup国内外研究综述

对2005-2009年国内外Mashup研究论文,从来源数据库、发表时间方面进行统计分析,并按主题简要介绍该领域理论研究和应用研究两个层次的主要成果,并对这些成果从内容和研究方法上进行述评,指出Mashup发展中存在的不足,对研究中存在的问题进行分析总结,并对未来该领域的研究趋势进行预测。     

FCA在医学领域文本分类中的研究和应用

在对文本分类技术和形式概念分析理论进行分析的基础上,针对医学领域文本的专业性特点,阐述利用形式概念分析进行医学领域文本分类的技术路线。通过中图法构建形式背景,进而生成概念格,利用概念格对领域文本进行分类,使分类效果接近人工分类。探索基于形式概念分析的医学领域文本分类的新途径。     

一种基于科技规划文本的研究前沿主题地图构建方法

[目的/意义]利用自然语言处理技术,研究一种从科技规划文本内容中自动构建研究前沿主题地图方法。[方法/过程]首先,利用自然语言处理领域中的信息抽取、主题识别等技术对科技规划文本进行主题挖掘分析,然后,利用Java语言开发相应挖掘工具,构建科学研究前沿主题地图,并进行可视化展示。[结果/结论]通过对碳纳米管研究领域的实证研究证明,该方法能够全面、快速准确的绘制出该领域科学研究前沿地图。     

Web自动文本分类技术研究综述

Web自动文本分类是信息检索与数据挖掘领域的研究热点与核心技术,近年来得到了广泛的关注和快速的发展.本文首先分析了国内外Web自动文本分类方法的研究现状,接着对新近出现的多分类器融合的方法、基于群的分类方法、基于RBF网络的文本分类模型、基于模糊-粗糙集的文本分类模型、潜在语义分类模型等新方法,以及K-近邻算法和支持向量机的新发展等进行了深入探讨;并对Web自动文本分类过程中的几个关键技术:文本预处理、文本表示、特征降维、训练方法和分类算法等进行了分析;最后总结了当前Web自动文本分类技术存在的问题及其发展趋势.     

引文文本分类与实现方法研究综述

[目的/意义] 对引文文本分类的标准、实现方法和应用进行梳理,分析存在的问题,提出可改进的方向。[方法/过程] 总结目前引文文本分类的几个重要角度,如基于引用功能、基于情感倾向、基于引文影响力等,对引文文本分类的实现方法进行比较,分析其优缺点。[结果/结论] 目前引文文本没有统一的分类标准和实现方法,引文文本的获取较为困难,计算机分类算法准确率较低,中文引文文本分析文献少。未来研究思路和方向应该是:统一文本分类的标准,提高引文文本计算机处理技术的准确性,扩大应用范围。     

Periodicals of Ethnic Minorities in Poland

ABSTRACT

The article examines the most important periodicals of ethnic minorities in Poland. After 1989, many ethnic groups (e.g., Germans and Romanies) were allowed to publish journals and newspapers for the first time since the end of World War II. The publications examined show the rich cultural life of the various ethnic groups as well as their current status in Poland. In addition to popular titles, some scholarly publications are also discussed.     

Reference Question Answered: Bibliographic Sources for the Ukrainian Periodical Press in the 1840s: Encyclopedias,Bibliographies, Guides,and Library Catalogs

The author answers a reference question on bibliographic sources for the Ukrainian periodical press 1840–1850. Helpful publications include bibliographies, guides, and library catalogs. These potentially make mention of revolutionary developments in Hungary (such as the Twelve Points paragraph of the Demands of the Hungarian Nation in March 1848, the subsequent April Laws, and Hungary's declaration of independence in April 1949), and elsewhere in the Hapsburg Empire.     

The Slavic Humanities Index: Current Developments and Future Plans

The author describes the Slavic Humanities Index, a bibliographic database of scholarly and cultural articles on subjects including history; literature; language teaching; linguistics; philosophy; ethnology; performing arts; and cultural, borderland, and regional studies. She discusses its development, its current form and functionality, and plans for the future.     

Jewish Book Publishing Today in the Countries of the Former USSR

SUMMARY

This article discusses Jewish book publishing in most of the Soviet Union's successor states after 1990. All publications on Jewish history, culture, traditions, and religion (Judaism) are included under this rubric. In addition to scholarly and educational publications, fiction translated from Yiddish and Hebrew, and “Russian-Jewish literature” are also included. The author provides statistics and discusses basic themes, linguistic issues, and problems encountered in the post-Soviet states. The article lists different publishers and organizations involved in Jewish book publishing.     

An Empirical Research Study of the Efficacy of Two Plagiarism-Detection Applications

This article describes a study of the two most popular plagiarism-detection software platforms available on today's market—Turnitin (http://www.turnitin.com/static/index.html) and SafeAssign (http://www.safeassign.com/). After a brief discussion of plagiarism's relevance to librarians, the authors examine plagiarism-detection methodology and conduct a review of the current literature regarding plagiarism-detection efficacy. To evaluate detection efficacy for Turnitin and SafeAssign, the authors constructed a brief study in which twenty sample papers containing portions of plagiarized material were submitted to each platform. The results show that Turnitin had the highest overall success at plagiarism detection with an 82.4 percent detection rate. Additionally, both platforms had a combined false-positive detection rate of 16.8 percent. The authors conclude that close review of material suspected of plagiarism is still essential for proper identification.     

中美引文数据库比较研究

本文选择了国内外几个典型的引文数据库,如:美国《艺术与人文科学引文索引》、《社会科学引文索引》、中国的《中文社会科学引文索引》、《中国科技论文引文分析数据库》、中国科学引文数据库等,并对其收录范围、来源文献的学科分布、更新频率等方面进行了比较研究,对今后我国引文数据库的建设提出了一些建议。     

BAZTECH: Polish Technical Journal Contents

ABSTRACT

The article describes the development and use of the database BAZTECH: Polish Technical Journal Contents. The database indexes Polish-language scientific and technical journals, and is available free-of-charge on the Internet.     

Russian Publishing, 2000-2001

Abstract

The Russian government is exerting increasing control over the country's media, although the media are resisting. This government-media conflict is relevant to Western academics and libraries, because the variety and quality of Russian periodicals is at stake. In addition, if the media are constrained, publishers of books are likely to experience restrictions, too. The difficulties the government is having in controlling the media, however, are a measure of how much Russia has changed. At the same time this conflict is occurring, book publishing is thriving. Official statistics show the number of titles published surpassed even the previous record set in 1977. Planning is in progress to restructure the state book industry sector, including publishing, printing and distribution. Book prices have increased more rapidly than inflation, and postage costs have also increased. Russian Press Service is doing its best to keep its prices to Western libraries down.     

Electronic Document Delivery in Pakistan: A Case Study

SUMMARY

Describing her experience of establishing an Electronic Document Delivery Service at the library of the Lahore University of Management Sciences (LUMS), the author discusses the various issues, which significantly effect the net cost, delivery time and management process of providing such a service by a library in Pakistan. While presenting multiple options leading to an effective solution, the advantages and disadvantages of each option have been highlighted, and their implications, with particular reference to Pakistani libraries, have been discussed. The various points to be considered by Pakistani Librarians, while selecting a commercial Document Provider, have also been discussed. In the end, the author discusses the potential of using the Electronic Document Delivery facility as a time-saving and cost-effective tool for Resource Sharing among libraries in Pakistan.     

Hey,Look Who Took This Out!-Privacy in the Electronic Library

ABSTRACT

No one can predict what document delivery will look like in the future, but librarians must guard patron confidentiality even in an electronic environment. This time it isn't an easily solved problem like finding another way of recording circulation than handwriting patron names onto circulation cards, it is instead the tracking of personal information attached to electronic text supplied by publishers that is a potential violator of patron privacy. Unmonitored in their efforts to protect their intellectual property without considering the rights of their customers, publishers could pose a threat to their customers' privacy, thus limiting their legal right of free access to information. Although encryption technology would appear to provide an answer to the confidentiality problem, it is not a panacea and that must be considered as the National Information Infrastructure is developed. Librarians need to stay alert to the developments in electronic publishing to be sure their concerns for patron privacy continue to be heard.