Davies Liu created SPARK-4562:
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Summary: Improve serializationi of DenseVector
Key: SPARK-4562
URL: https://issues.apache.org/jira/browse/SPARK-4562
Project: Spark
Issue Type: Improvement
Components: MLlib, PySpark
Affects Versions: 1.2.0
Reporter: Davies Liu
There is a performance regression in test of GLM, it's introduced by
serialization change of Vector.
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