The papers presented at the 18th Clinic on Library Applications of Data Processing discuss current developments and applications of new technologies for processing, transmitting, and storing information, as well as some issues raised by these new technologies. Ten papers are included: (1) a keynote speech on the changing roles of the information…

Discusses impact of three selected command language facilities (positional or free text operations, crossfile searching, term frequency analysis--ZOOM) on the man-system interface in relation to operational online information retrieval (IR). A cognitive IR model, searchers' knowledge structures, and searching with different types of command…