[jira] [Created] (IGNITE-9064) Decision tree optimization

[Yury Babak (JIRA)]

Yury Babak created IGNITE-9064:
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             Summary: Decision tree optimization
                 Key: IGNITE-9064
                 URL: https://issues.apache.org/jira/browse/IGNITE-9064
             Project: Ignite
          Issue Type: Improvement
          Components: ml
            Reporter: Yury Babak
            Assignee: Alexey Platonov
             Fix For: 2.7


We need to optimize impurity function calculation by additional index structure 
for all sorted features and reusing it in learning iterations.



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