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.)…

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)