Jiaming Yuan 1450aebb74
Fix pairwise objective with NDCG metric along with custom gain. (#10100)
* Fix pairwise objective with NDCG metric.

- Allow setting `ndcg_exp_gain` for `rank:pairwise`.

This is useful when using pairwise for objective but ndcg for metric.
2024-03-11 14:54:10 +08:00
..
2023-08-24 05:29:52 +08:00
2022-09-21 18:06:50 +08:00
2023-03-01 00:39:06 +08:00
2020-08-12 01:26:02 -07:00