第二讲 信息组织方法论-课件.ppt

叙词表款目示例 COMPETENCY BASED EDUCATION Mar. 1980 CIJE: 884 RIE: 2881 GC: 330 SN Educational system that emphasizes the specification, learning, and demonstrating of those competencies (knowledge, skills, behaviors) that are of central importance to a given task, activity, or career. UF Consequence Based Education Criterion Referenced Education Output Oriented Education NT Competency Based Teacher Education BT Education RT Academic Standards Accountability Back to Basics Individualized Instruction …… 显示 字顺Alphabetical 分类Classified 层次Hierarchical 关键词索引Permuted Keyword Index 图象表示Graphical 序词表的设计 – 两步法 Is a thesaurus necessary? If it is, which of the followings would be a better or more suitable approach? Buying Compiling Adapting A very useful Web site to find information about thesaurus construction and use – prepared by Willpower Information http://www.willpower.demon.co.uk/thesbibl.htm 叙词表的设计 – 信息系统因素 Subject field Type of literature/data Quantity of literature/data Language considerations System users Questions, searchers, profiles Resources available (Source: Aitchison, Gilchrist, Bawden, 1997, Section B) 如何开发叙词表——自顶向下方法 Convene a group of subject experts to decide on the scope and broad categories of terms to be included. Use existing dictionaries and thesauri to decide on the terms and their relationships. Review and organize the preliminary term set: decide on preferred terms and make Use references from the variants and synonyms; and build hierarchical and associative relationships among the preferred terms. Produce a draft thesaurus, test index and revise. (source: /site/thesbuild.shtml) Develop a group of subject experts to serve as advisors; work with them to determine the scope if it is not already set. If there is a set of representative already-indexed documents, use the index terms from this set as your preliminary term list. If not, index a set of representative documents using free language (i.e., no