NDCG measures: ranking quality with graded relevance scores

NDCG measures ranking quality with graded relevance scores

NDCG evaluates the effectiveness of search engine algorithms by considering the graded relevance of documents in search results. It accounts for both the usefulness of the results and their position in the list.

Example

For a search query, if the first result is highly relevant, the second moderately relevant, and the third barely relevant, NDCG would assign higher scores to the first result compared to the others due to its graded relevance.

Remember this

Understanding NDCG helps improve search engine algorithms by optimizing for both relevance and ranking position.

Text adapted from Wikipedia, licensed under CC BY-SA 4.0.

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