NDCG@10 > 1

[agazzarini]

The NDCG value should be always between 0 and 1; sometimes happens that it is bigger than 1, like in the attached screenshot.

The only thing I see is that the rating files, in that case, is declaring more than 10 relevant documents, as it follows:

"relevant_documents": {
   "3": ["193"],
   "1": ["13475", "54138", "152", "154", "157", "168","200","201","199","172","174"]
}

[agazzarini]

Fixed, problem was in the "ideal" DCG calculaton.