Explores the new storage technology of optical data disks and introduces a data structure, the inverted signature tree, for storing data on optical data disks for efficient text searching. The inverted signature tree approach is compared to the use of text signatures and the B+ tree. (22 references) (Author/CLB)

Built using a distributed architecture, this prototype distributed information retrieval system uses statistical ranking techniques to provide better service to the end user. Distributed architecture was shown to be a feasible alternative to centralized or CD-ROM information retrieval, and user testing of the ranking methodology showed both…

Describes a study comparing information retrieval from print and CD-ROM versions of Compton's Encyclopedia. Forty-eight sixth-grade students searched four questions in both versions. The results showed that the searches took the same amount of time in both. The novice searchers were able to use an information retrieval system with minimal…