Jiaming Yuan 9fbde21e9d
Rework the precision metric. (#9222)
- Rework the precision metric for both CPU and GPU.
- Mention it in the document.
- Cleanup old support code for GPU ranking metric.
- Deterministic GPU implementation.

* Drop support for classification.

* type.

* use batch shape.

* lint.

* cpu build.

* cpu build.

* lint.

* Tests.

* Fix.

* Cleanup error message.
2023-06-02 20:49:43 +08:00
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2022-12-13 18:37:31 +08:00