zhengruifeng created SPARK-19057:
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Summary: Instances' weight must be non-negative
Key: SPARK-19057
URL: https://issues.apache.org/jira/browse/SPARK-19057
Project: Spark
Issue Type: Improvement
Components: ML
Reporter: zhengruifeng
Priority: Trivial
It looks like that negative-weighted instances make no sense and can cause
divergence in ml algs.
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