Investigated the impact of term frequencies, term distributions, and indexing exhaustivity on the representation of document spaces in a visual, vector-based retrieval environment. Compares document-space densities and discusses visualization techniques, term weights, and implications for automatic indexing in information retrieval systems.…

Describes an experiment comparing the performance of an automatic full-text indexing software for personal computers (i.e., the Quick-Finder facility in WordPerfect 6.1 for Windows) with the human intellectual assignment of indexing terms to each document in a collection. Results are discussed in terms of ease of use, the time factor, and recall…

Describes the design of an automatic indexing system that is based on statistical techniques and expert system technology. Highlights include system architecture; the derivation of topic indicators, including word frequency; experimental results using documents from ERIC; the effects of stemming; and the identification of characteristic…