Examines the knowledge base of an intermediary expert system that provides advice about search term selection. Topics include a proposal for an integrated approach, including an option focusing on terminological attributes based on knowledge acquired from professional searchers; and the content of the knowledge base and the research needed to…

The issue of free-text versus controlled vocabulary is examined. The history of the issue, which is seen as beginning with the debate over title term indexing in the nineteenth century, is reviewed and questions not satisfactorily addressed by previous research are raised. (Author/EM)

Provides overview of Ergonomics Abstracts Retrieval System (EARS), an online bibliographic search and retrieval system in the area of human factors engineering. Other online systems are described, the design of EARS based on inverted file organization is explained, and system expansions including a thesaurus are discussed. (Author/LRW)

Describes the organization of the descriptors used in the ERIC database to indicate age, educational, and student levels, and suggests appropriate search strategies for the retrieval of information on specific age groups. (CLB)

Explains the efforts of the ICSTI (International Council for Scientific and Technical Information) Group on Interdisciplinary Searching to identify and describe problems of interdisciplinary searching and to propose solutions. Problems are summarized in six areas: database coverage and technical content, bibliographic information, textual content,…

Grounded on object filtering, automatic indexing, and co-occurrence analysis, an experiment was performed using a parallel supercomputer to analyze over 400,000 abstracts in an INSPEC computer engineering collection. A user evaluation revealed that system-generated thesauri were better than the human-generated INSPEC subject thesaurus in concept…

Considers the quality of bibliographic control achieved by the three online databases offering significant coverage of the literature of librarianship: ERIC, LISA, and Library Literature. Focusing on coverage and indexing, the study compares online search results with the tables of contents of 67 journals and reports the results. (27 references)…

Presents the advantages and disadvantages of free text and controlled vocabulary retrieval techniques and a methodology to assist in deciding on the optimal technique for a particular purpose. The relevance of the techniques for expert systems and full text contexts is also discussed and recommendations for further research are made. (Author/EM)

The purpose of this research is to investigate indexing issues that pertain to the development of digital libraries, including: the identification of sublanguage vocabulary; domain-specific indexing; and other indexing tools. Thesauri are needed for digital libraries in order to improve end-user access. To demonstrate the importance of thesauri to…

Describes a study that compared the coverage of the nursing profession, subject heading specificity, and ease of retrieval of the MEDLINE and Nursing & Allied Health (CINAHL) online databases. The strengths and weaknesses of each database are discussed and hints for searching on both databases are provided. (four references) (CLB)

Argues that online search capabilities are a form of indexing and that access is determined by the total mix of preexisting and added "search capability" indexing. The design of a "superthesaurus," geared to the needs of users and to online rather than manual searching, is proposed as part of a user friendly interface. (19…

Describes a study of professional searchers that investigated their decisions about using search terms. The use of descriptors from a controlled vocabulary versus the use of textwords for free-text searching is examined, searching styles and differences in subject areas are discussed, and the quality of thesauri and indexing is considered. (six…

This core thesaurus of terms suitable for indexing Australian educational literature was developed by the Australian Council for Educational Research by means of a systematic and thorough revision of the "Thesaurus of ERIC Descriptors." Based on the actual terminology of education in Australia, this thesaurus includes: key words and…

Describes the development of a bibliographic information system designed to assist architecture/engineering firms under contract to the Army Corps of Engineers in locating regulations or guidelines for the planning, design, or construction of army facilities. A sample search of the system is appended. (Author/CLB)

Reviews ConSearch 3.0, a product that provides flexible searching of electronic files, allowing the location of related meanings as well as exact matches. ConSearch 3.0 differs from other file retrieval approaches by relating words in search phrases of questions to the "meaning" of the words, which are stored in a "conceptual…