NDCG (Normalized Discounted Cumulative Gain)
NDCG rescales DCG by the ideal ordering’s DCG. A score is only comparable when the gain convention, cutoff, candidate set, and empty-query rule are the same.
NDCG rescales DCG by the ideal ordering’s DCG. A score is only comparable when the gain convention, cutoff, candidate set, and empty-query rule are the same.