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SAPHIRE--an information retrieval system featuring concept matching, automatic indexing, probabilistic retrieval, and
1Harvard Medical School, Brigham and Women's Hospital, Department of Radiology, Boston, Massachusetts 02115.
Computers and Biomedical Research, an International Journal
|October 1, 1990
Abstract:
SAPHIRE (Semantic and Probabilistic Heuristic Information Retrieval Environment) is an experimental computer program designed to test new techniques in automated information retrieval in the biomedical domain. A main feature of the program is a concept-finding algorithm that processes free text to find canonical concepts. The algorithm is designed to handle a wide variety of synonyms and convert them to canonical form. This allows natural language to be used for query input and also serves as the basis for a new approach to automatic indexing based on a combination of probabilistic and linguistic methods.