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[docs] Add alt text to image in Parameters-Tuning.rst #4035

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Mar 2, 2021
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[docs] Add alt text to image in Parameters-Tuning.rst #4035

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[docs] Add alt text to image in Parameters-Tuning.rst
subhamagrawal7 Mar 1, 2021
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Update docs/Parameters-Tuning.rst
subhamagrawal7 Mar 1, 2021
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Merge remote-tracking branch 'upstream/master' into docs-add-alt-image
subhamagrawal7 Mar 2, 2021
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Expand Up @@ -70,6 +70,7 @@ LightGBM adds nodes to trees based on the gain from adding that node, regardless

.. image:: ./_static/images/leaf-wise.png
:align: center
:alt: Three consecutive images of decision trees, where each shows the tree with an additional two leaf nodes added. Shows that leaf-wise growth can result in trees that have some branches which are longer than others.

Because of this growth strategy, it isn't straightforward to use ``max_depth`` alone to limit the complexity of trees. The ``num_leaves`` parameter sets the maximum number of nodes per tree. Decrease ``num_leaves`` to reduce training time.

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