Effectiveness of retrieval in statistically-based and knowledge-based retrieval systems
Subtitle: report for the period October 1989 to September1990 to the British Library Research and Development Department on Project SI/G/871
By: Alexander M. Robertson [...et al.].
Contributors: Robertson, Alexander M.; British Library. Research and Development Department.; University of Sheffield. Department of Information Studies.
Series: British Library R & D report -- 6042; SI/G/871
Publisher: University of Sheffield, Department of Information Studies
Published: 1990
Place of publication: Sheffield
Language: eng