walterddr commented on a change in pull request #6425: [FLINK-9664][Doc] fixing 
documentation in ML quick start
URL: https://github.com/apache/flink/pull/6425#discussion_r209430609
 
 

 ##########
 File path: docs/dev/libs/ml/quickstart.md
 ##########
 @@ -129,6 +129,10 @@ and the [test set 
here](http://www.csie.ntu.edu.tw/~cjlin/libsvmtools/datasets/b
 This is an astroparticle binary classification dataset, used by Hsu et al. 
[[3]](#hsu) in their
 practical Support Vector Machine (SVM) guide. It contains 4 numerical 
features, and the class label.
 
+Before importing the traning and test dataset, Flink SVM only supports 
threshold binary values of 
+`+1.0` and `-1.0`. Thus a conversion is needed upon downloading the svmguide1 
dataset since it is 
+labelled using `1`s and `0`s.
+
 
 Review comment:
   thx for the detail explanation @azagrebin . Sorry for the previous 
confusion. I updated the document, please take another look when you have time 
:-)

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