3 Commits

Author	SHA1	Message	Date
Jiaming Yuan	972730cde0	Use matrix for gradient. (#9508) ... - Use the `linalg::Matrix` for storing gradients. - New API for the custom objective. - Custom objective for multi-class/multi-target is now required to return the correct shape. - Custom objective for Python can accept arrays with any strides. (row-major, column-major)	2023-08-24 05:29:52 +08:00
Jiaming Yuan	e206b899ef	Rework MAP and Pairwise for LTR. (#9075)	2023-04-28 02:39:12 +08:00
Jiaming Yuan	ef13dd31b1	Rework the NDCG objective. (#9015)	2023-04-18 21:16:06 +08:00