Showing posts with label discount Cumulative Gain. Show all posts
Showing posts with label discount Cumulative Gain. Show all posts

Friday, March 31, 2023

Ranked Retrieval Evaluation - Rank Based Measures - Non- Binary relevance

Non- Binary relevance

Documents are rarely entirely relevant or non-relevant  to a query
Many sources of graded relevance judgments
Relevance judgments on a 5-point scale
Multiple judges
Click distribution and deviation from expected levels
(but click-through != relevance judgments)





Normalized Discounted  Cumulative Gain (NDCG)















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