Describes an automatic display system which has been developed for the editing of concept subnetworks within a relational index and which employs only a floppy diskette drive and a PET 2001 microcomputer. Appendices on Farradane's Nine Relations and on the Graphic Editing System Commands and a reference list are included. (Author/JL)

Investigates methods of compressing headings identified by MARC subfield codes to reduce the size of browsable displays. An argument is made for sorting subdivisions by a conceptual, rather than an alphabetical, approach to present efficient browsable displays and relieve the user of the burden of data organization. (14 references) (Author/CLB)

Describes some of the problems encountered in full text searching and suggests ways to overcome them. Areas discussed include differences between online and offline versions of full text; lack of precise and flexible indexing; software inadequacies; record displays; typographical errors; and problems with both global and source searching. (six…

Describes applications in variety of settings of videodiscs as tools of information retrieval with online databases, identifies underlying technical capabilities, and discusses five operations required to implement any application: coordinating diverse formats; indexing; physically arranging items on disc; designing input, search, and output;…

Proposes a single underlying structure for the production of a variety of computer index displays, using a networking system which represents both concepts and links by nodes. Desirable characteristics of index displays are outlined, and algorithmic extraction of subnetworks for local use is discussed. References are included. (Author/BK)

Describes a microcomputer-based multimedia system that enables videotape presentations to be created by assembling still or moving data, with sound and in color, from a variety of sources. Source media include Macintosh storage of text and graphics, and various types of videotape and disc players. (18 references) (CLB)

Describes an information retrieval system developed at Bell Laboratories to create and maintain a variety of different but interrelated databases, and to provide controlled access to these databases. The components discussed include the interfaces, indexing rules, display languages, response time, and updating procedures of the system. (6 notes…

Describes videotex development; discusses optimal internal organization, visual display, and presentation of information on videotex screen; addresses policy issues of equity, privacy, and costs that affect instructional use of videotex; outlines videotex field trials and experiments within education; and draws conclusions on significance of…