fuminglin created SPARK-3942:
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Summary: LogisticRegressionWithLBFGS should not use
SquaredL2Updater
Key: SPARK-3942
URL: https://issues.apache.org/jira/browse/SPARK-3942
Project: Spark
Issue Type: Bug
Components: MLlib
Affects Versions: 1.1.0
Reporter: fuminglin
LBFGS method use line search for step size, in all mllib`s updater use
step-size decreasing with the square root of the number of iterations, this may
cause Wolfe condition not hold.
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