ggfm.data.ndcg_at_k¶

class ggfm.data.ndcg_at_k(r, k)[source]¶

Bases:

Compute the Normalized Discounted Cumulative Gain (NDCG) at rank k.

Parameters:

r (list) – A list of relevance scores representing the ranking of items.
k (int) – The rank at which to compute NDCG.

Returns:

The Normalized Discounted Cumulative Gain (NDCG) value.

Return type:

float