Discussion of graph-drawing algorithms compares and evaluates five algorithms for generated automatic graphic display of sentence dependency structures that have been implemented in the TEXTNET text structure management system. Evaluation criteria are discussed, and a test of the algorithms with a database of newspaper articles is described. (16…

Summarizes the best known methods of using the signature file access method as a storage structure in information retrieval in nonbusiness applications of multimedia data. The relationships between application area, type of data, and signature file organization are emphasized. Results are summarized in a selection guide. (Contains 26 references.)…

Organizes, describes, and evaluates management information systems research from 1981 to 1985 to provide an understanding of what constitutes management information systems research and to indicate areas for future research. (210 references) (Author/CLB)

Describes a comparative study of the "help" facilities of 16 interactive information retrieval systems. Guidelines for the design of a "help" facility are presented and then used to evaluate the quality and friendliness of each system. Suggestions for the improvement of online "help" facilities are discussed. (31…

Describes a study that measured the speed, error rates, and subjective evaluation of arrow jump keys, a jump mouse, number keys, and a touch screen in an interactive encyclopedia. The results of previous studies are discussed as well as the findings of this study. Improvements in selection devices are suggested. (41 references) (Author/CLB)

Presents a measure of the relative standing of professional journals in an aggregated journal citation matrix. The results of the application of the measure to a network of geographic journals during two time periods are reported and discussed. (35 references) (Author/CLB)

Presents a model for information retrieval evaluation based on the notion of total relevance, a function derived from the traditional summation of relevance ratings over the documents in a collection. The model makes explicit the perceptual underpinnings of relevance assessments while allowing for consideration of interdocument dependencies. (37…

Summarizes the similarities between classification systems for catalog selection and information retrieval systems, and discusses system characteristics that allow the use of measures such as recall and precision in system evaluation. (27 references) (Author/CLB)

Various methods for calculating and presenting results of information retrieval (IR) evaluation research are discussed, with illustrations from recent laboratory results. Highlights include measures for calculating recall and precision, user needs for high or low level of recall, and comparisons of Boolean and ranked output retrieval. (22…

Describes the results of a survey that examined what kinds of database vendors are improving their retrieval software and the decision processes involved. Respondents included large and small vendors from the public and private sectors. An appendix presents vendors' reasons for and against specific innovations. (12 references) (CLB)