EFFECTIVENESS OF INFORMATION RETRIEVAL METHODS
BOLT BERANEK AND NEWMAN INC CAMBRIDGE MA
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Results of some fifty different retrieval methods applied in three experimental retrieval systems were subjected to the analysis suggested by statistical decision theory. The analysis validates a previously-proposed measure of effectiveness and demonstrates its several desirable properties. The examination of a wide range of data in relation to this one metric provides a clear and general assessment of the current state of the retrieval art, and shows that the art is still far from what might be considered a desirable state.
- Information Science
- Statistics and Probability