一种新型实用的索书号结构之探讨

基于长期从事图书标引与检索工作的实践,就目前广泛采用的几种用于图书标引与检索的索书号结构进行比较．介绍一种新型的索书号结构,即“分类号＋书名＋著者＋出版年月＋N位容量码”的组合索书号结构。     

Using Company Blogs to Win over Decision Makers

Company blogs offer publishers a media platform to build online communities around issues of interest to customers and prospects. Web 2.0 represents the fundamental shift from “old” marketing where publishers engaged in one-directional push messaging and “new” marketing where customers and prospects are also creators of content and key messages in response to their individual experiences. Whether companies decide to participate in the online conversation or not, they and their products are being discussed. To maintain credibility and support their brands, publishers must engage their audiences online. Creating a company blog as the centerpiece of a Social Media strategy can be a meaningful investment in a publisher’s longevity.     

Document keyphrases as subject metadata: incorporating document key concepts in search results

Most search engines display some document metadata, such as title, snippet and URL, in conjunction with the returned hits to aid users in determining documents. However, metadata is usually fragmented pieces of information that, even when combined, does not provide an overview of a returned document. In this paper, we propose a mechanism of enriching metadata of the returned results by incorporating automatically extracted document keyphrases with each returned hit. We hypothesize that keyphrases of a document can better represent the major theme in that document. Therefore, by examining the keyphrases in each returned hit, users can better predict the content of documents and the time spent on downloading and examining the irrelevant documents will be reduced substantially.     

Device-Driven Research: The Impact of Chromebooks in American Schools

Chromebooks and the G Suite group of products, like Google Search, Gmail, and Google Docs, have rapidly expanded in American schools during the past 5 years. The impact of one-to-one Chromebook devices and the pervasive use of Google's software products in American education cannot be overstated. This article explores some of the influences of these products on research, based on the experiences of a librarian and technology coordinator at an elementary education level. The author has several suggestions for effective research with these products in mind.     

Will Web Search Engines Replace Bibliographic Databases in the Systematic Identification of Research?

The availability of web search engines offers opportunities in addition to those provided by bibliographic databases for identifying academic literature, but their usefulness for retrieving research is uncertain. A rigorous literature search was undertaken to investigate whether web search engines might replace bibliographic databases, using empirical research in health and social care as a case study. Eight databases and five web search engines were searched between 20 July and 6 August 2015. Sixteen unique studies which compared at least one database with at least one web search engine were examined, as well as drawing lessons from the authors’ own search process. Web search engines were limited in that the searcher cannot be certain that the principles of Boolean logic apply and they were more limited than bibliographic databases in their functions, such as exporting abstracts. Recommendations are made for improving the rigour and quality of reporting studies of academic literature searching.     

国内外信息源选择研究述评及一个整合的理论模型

信息源选择是信息搜寻领域的重要课题,自20世纪60年代以来受到广泛关注。随着互联网应用的深化,信息源的种类和数量不断增加,相关研究取得了颇为丰硕的成果。系统梳理已有研究成果,可为后续研究提供参考。本文从研究文献学科分布、核心概念及相关理论基础三个方面介绍国内外信息源选择的研究概况,从信息源、任务与环境、信息搜寻者主体等维度对影响信息源选择的理论要素进行全面综述,包括信息源的可获取性和质量,任务的复杂性、重要性与紧迫性,搜寻者的社会资本等,在此基础上构建了一个整合的信息源选择理论模型。文章最后对信息源选择的未来研究趋势进行展望,包括理论集成构建,研究对象群体的拓展,研究变量的细分与交叉,以及社会结构因素的纳入等。图3。表2。参考文献109。     

CALIS与国图OPAC书目检索结果对比研究

以笔者长期检索经验为基础,以抽样检索结果为依据,将CALIS与国图OPAC书目检索结果进行对比分析。检索结果表明,二者书目数据质量高,值得肯定;存在的差异,各有特色。二者的共同问题是数据不规范、不一致。建议实行统一的编目规则,并严格执行,遵循以用户为中心的原则,以便于书目信息资源共享。     

Meeting Reference Responsibilities Through Library Web Sites

Summary

Among the many ways the World Wide Web has changed libraries are the additional tools gained by librarians and library users for answering reference questions. In addition to the growing number of licensed resources providing the full text of articles from newspapers, magazines, academic journals, and reference works are the millions of free Web sites offering an incredible variety of information about everything. Locating the most useful of these sites and organizing them into categories on library Web sites can be enormously beneficial both to patrons and libraries. After deciding to make their sites reference portals, librarians must make a number of important decisions.     

“Flash” Back: New Format,Old Issues

In recent years book publishers have begun a gradual trend towards providing academic libraries with USB flash drives as content bearers of their products and services. This article reviews the current uses of the USB flash drive in academic libraries as well as the updates and changes to the USB flash drive. These updates and changes to the USB flash drive make it more appealing as the conveyor of the digital book; therefore giving librarians' flashbacks of old issues associated with a new trend.     

How Google Uses Metadata to Improve Search Results

This article critically examines four Google search products (Google Advanced Search, Google News Advanced Search, Google Books Advanced Search, and Google Advanced Scholar Search) and shows how each uses metadata to enhance or improve search results. In addition, the article shows how metadata can increase search precision and recall in information discovery systems. From a library perspective, this article analyzes some of the metadata-enabled features of Google's advanced search pages and compares these features to those found in a typical online library catalog. From a serials perspective, Google News Advanced Search demonstrates how Google indexes news websites, sites that are essentially continuing resources. As Google incorporates more and more metadata functionality into its advanced search pages, they increasingly begin to function more like online library catalogs and less like search pages found in a traditional Internet search engine. The simple search box has many limitations, and like libraries, Google is increasingly creating and offering metadata-enabled search features that improve search precision and recall in its products.