The report deals with experiments in testing and evaluation of an information retrieval system within the Comparative Systems Laboratory (CSL). Section I outlines the approach and the general methodology developed in CSL, the operational design of the experiments, the construction and use of the manuals, and the general significance of the…

This book deals with properties of vocabularies for indexing and searching document collections; the construction, organization, display, and maintenance of these vocabularies; and the vocabulary as a factor affecting the performance of retrieval systems. Most of the text is concerned with vocabularies for post-coordinate retrieval systems, with…

The purpose of this project was to provide guidance to ERIC on how to facilitate product information retrieval. Information on practitioner needs, on the use of descriptors and abstracting procedures, and on alternatives for improving the system was gathered and circulated to NIE staff members. The resulting document described three alternative…