Procedures for coordinate indexing are described and the importance of a controlled vocabulary common to indexer and searcher discussed. (Author)

Introduced are methods for computation of term-term association factors, indexing, assignment of term-document relevance values, and computation for recall and relevance. Recall and relevance are based on quantitative intenal system computations, and results are compared with user evaluations. (Author/MF)

To assess value of abstracts in online information retrieval, this study attempts to match free-text search phrases to index terms and provides classification of documents indicating form of retrieval to be expected by searching three databases--Energyline; Management Contents; and America, History and Life. Results of a sample search are…

Discusses the quality of information retrieval using "free text" searching in full-text databases and presents a critical perspective on the importance of augmenting access to full-text databases through some form of text enhancement, such as the use of a limited controlled vocabulary for indexing general concepts. (Author/JL)

Describes procedures followed in the use of a microcomputer to develop an index to a collection of vocal sheet music at the Music Library of the University of Colorado. Indexes generated using four fields--title, composer's last name, lyricist's last name, and first line--are noted. (EJS)

INDEX, an interactive retrieval program developed at Pepperdine University, is described. It is easy to use and maintain, locates sources of information from a general description of the information needed, requires only a modest investment of time, and is widely applicable. (MLW)

Reviews the literature of citation theory and advocates the development of a more consistent citing typology. Authors are encouraged to be more restrained and selective in their referencing habits to provide greater consistency in reference practice. Fifty-one references are cited. (RAA)

Describes three criteria for evaluating indexing performances--quality, effectiveness, and consistency. The impracticality of effectiveness measurements and the unreliability of consistency measurements are discussed, and recommendations for assessing indexing quality are made. Two references are provided. (Author/BK)

Describes large scale experiments to test the value of index term weighting based on relevance information, and presents results showing that weighting leads to remarkable improvements in retrieval performance. (Author/CWM)

Describes the problems encountered in the design and implementation of a complete, computerized retrieval system for the engineering and architectural drawings of several large Southern California land development firms: developing a specialized cataloging system and format, a customized thesaurus, computer software, and managerial procedures. The…

Suggests a new ranking scheme especially adapted for hypertext environments in order to produce more effective retrieval results and still use Boolean search strategies. Topics include Boolean ranking schemes; single-term indexing and term weighting; fuzzy set theory extension; and citation indexing. (64 references) (Author/LRW)

Provides an overview of this special issue on organizing resources on the Internet and discusses metadata. Topics include full-text indexing; adding additional data, or metadata; user needs; standard library cataloging; examples of the use of metadata; development of GEM (Gateway to Educational Materials); Dublin Core; and OCLC efforts. (LRW)

Examines trends in World Wide Web searching; reviews new search services; and describes changes in major Web search services. Highlights include commercial sites, subject access, target audience, custom interfaces, concept searching, and results lists. (LRW)

Explores the use of linear models and a combination of neural networks and linear classifiers to create a hybrid hierarchical mixture of experts (HME) model. Results confirm that using the hierarchical structure of the classification vocabulary improves categorization performance. (AEF)