NDCG Class Reference

Normalized discounted cumulative gain (NDCG) of a list of ranked items. More...

List of all members.

Static Public Member Functions
static double	Compute (IList< int > ranked_items, ICollection< int > correct_items, ICollection< int > ignore_items=null)
	Compute the normalized discounted cumulative gain (NDCG) of a list of ranked items.

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Detailed Description

Normalized discounted cumulative gain (NDCG) of a list of ranked items.

See http://recsyswiki.com/wiki/Discounted_Cumulative_Gain

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Member Function Documentation

static double Compute	(	IList< int >	ranked_items,
		ICollection< int >	correct_items,
		ICollection< int >	ignore_items = null
	)		[inline, static]

Compute the normalized discounted cumulative gain (NDCG) of a list of ranked items.

See http://recsyswiki.com/wiki/Discounted_Cumulative_Gain

Parameters:

ranked_items	a list of ranked item IDs, the highest-ranking item first
correct_items	a collection of positive/correct item IDs
ignore_items	a collection of item IDs which should be ignored for the evaluation

Returns:

the NDCG for the given data

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The documentation for this class was generated from the following file:

• NDCG.cs