Known-Item Search Success
Known-item search is the case where the user is looking for one specific document they already know exists — a particular paper, book, web page, or record — rather than exploring a topic. Evaluation is correspondingly specialized: with exactly one correct answer per query, the question is simply how high the system ranks that single target. The natural measures are reciprocal rank (and its mean, MRR), success-at-k, and Cooper's expected search length, which counts how many wrong documents the user must wade through before reaching the right one. These metrics, averaged over many known-item topics, give a clean, interpretable picture of how well a system supports re-finding a specific document.
Registre font
Les citacions es copien textualment del registre font del mètode. No s'infereix cap verificació a nivell de reclam d'elles.
- Cooper, W. S. (1968). Expected search length: A single measure of retrieval effectiveness based on the weak ordering action of retrieval systems. American Documentation, 19(1), 30-41. · DOI 10.1002/asi.5090190108
- Manning, C. D., Raghavan, P., & Schütze, H. (2008). Introduction to Information Retrieval. Cambridge University Press. · ISBN 9780521865715
- Voorhees, E. M., & Harman, D. K. (Eds.). (2005). TREC: Experiment and Evaluation in Information Retrieval. MIT Press. · ISBN 9780262220736
Reclamacions curades
Les reclamacions s'han persistit al registre de proves, cadascuna amb la seva pròpia avaluació.
Aquesta vista no inventa una avaluació de reclam quan el registre no en té cap.
Mètodes relacionats
Generat a partir del gràfic de mètodes i mostrat com a relacions suggerides per la màquina; no s'infereix cap reclamació d'evidència.