Updated dart.rst with correct links (#8229)

Updated the DART paper link as it was invalid and link was broken.
dmlc · Sep 7, 2022 · dc07137 · dc07137
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Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/doc/tutorials/dart.rst b/doc/tutorials/dart.rst
@@ -11,7 +11,7 @@ This is a instruction of new tree booster ``dart``.
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 Original paper
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-Rashmi Korlakai Vinayak, Ran Gilad-Bachrach. "DART: Dropouts meet Multiple Additive Regression Trees." `JMLR <http://www.jmlr.org/proceedings/papers/v38/korlakaivinayak15.pdf>`_.
+Rashmi Korlakai Vinayak, Ran Gilad-Bachrach. "DART: Dropouts meet Multiple Additive Regression Trees." [`PMLR <http://proceedings.mlr.press/v38/korlakaivinayak15.pdf>`_, `arXiv <https://arxiv.org/abs/1505.01866>`_].
 
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 Features