Metrics, NLP, Search, Recommendation System, Evaluation.
average of multiple “precision over k” values for each query. For the user query — What character did Robert Downey Jr. play?: - For k=1, precision over k is 0 as Elon Musk is an incorrect answer - For k=2, precision over k is 0 as both Elon Musk and Tony are incorrect answers - For k=3, precision