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ERIC Number: EJ190871
Record Type: Journal
Publication Date: 1978
Pages: N/A
Abstractor: N/A
Reference Count: N/A
An Extension of the Signal Detection Model of Information Retrieval.
Hutchinson, T. P.
Journal of Documentation, v34 n1 p51-54 Mar 1978, Mar78
Suggests that a possible reason for receiver-operating characteristics (ROC) curves having a slope other than unity when plotted on Normal-deviate axes is that the dichotomy into relevant and nonrelevant items is artificial, and that there is really a bivariate distribution of objective relevance and relevance as assessed by the information retrieval system, with positive correlation. (Author/VT)
Publication Type: N/A
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A