CIKM Cup 2016 Track 2: Personalized E-Commerce Search Challenge Forum

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> NDCG formula

The wikipedia page linked in the description lists two possible DCG formulas. Which one is used for this competition?

Posted by: agrigorev @ Aug. 23, 2016, 1:23 p.m.

Also, I googled a bit and found that typically NDCG@k is used. What is k here?

Posted by: agrigorev @ Aug. 23, 2016, 1:40 p.m.

Hi! Sorry for a slow reply on this question. Here is the code that is used for evaluation: https://www.dropbox.com/s/gz1xwg9w7gfabwj/score.py?dl=0

Posted by: spirinus @ Sept. 9, 2016, 5:17 p.m.
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