Ranking Task Performance Measure

A Ranking Task Performance Measure is a prediction performance measure for a ranking task.

• Context:
  • It can (often) be used as an IR Task Performance Measure (for an IR task).
• Example(s):
  • Precision@K, Recall@K.
  • Mean Reciprocal Rank (MRR).
  • Normalized Discounted Cummulative Gain (NDCG).
  • …
• Counter-Example(s):
  • a Classification Performance Measure.
  • a Point Estimation Performance Measure.
• See: AveP, MAP Measure, Relevance (Information Retrieval).

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