Skip to content

GitLab

Commit a69f41e2 authored by Nikita Titov's avatar Nikita Titov Committed by Guolin Ke
Browse files

added note about max label in rank task (#1092)

parent 159668d6
Hide whitespace changes
Inline Side-by-side
Showing with 4 additions and 2 deletions
docs/Parameters.rst
View file @ a69f41e2
...@@ -88,7 +88,9 @@ Core Parameters ...@@ -88,7 +88,9 @@ Core Parameters
- the label should be ``int`` type in lambdarank tasks, and larger number represent the higher relevance (e.g. 0:bad, 1:fair, 2:good, 3:perfect) - the label should be ``int`` type in lambdarank tasks, and larger number represent the higher relevance (e.g. 0:bad, 1:fair, 2:good, 3:perfect)
- ``label_gain`` can be used to set the gain(weight) of ``int`` label - `label_gain <#objective-parameters>`__ can be used to set the gain(weight) of ``int`` label
- all values in ``label`` must be smaller than number of elements in ``label_gain``
- ``boosting``, default=\ ``gbdt``, type=enum, - ``boosting``, default=\ ``gbdt``, type=enum,
options=\ ``gbdt``, ``rf``, ``dart``, ``goss``, options=\ ``gbdt``, ``rf``, ``dart``, ``goss``,
...@@ -535,7 +537,7 @@ Objective Parameters ...@@ -535,7 +537,7 @@ Objective Parameters
- will optimize `NDCG`_ at this position - will optimize `NDCG`_ at this position
- ``label_gain``, default=\ ``0,1,3,7,15,31,63,...``, type=multi-double - ``label_gain``, default=\ ``0,1,3,7,15,31,63,...,2^30-1``, type=multi-double
- used in ``lambdarank`` - used in ``lambdarank``
......
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment