Feynman Liang created SPARK-10478:
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Summary: Improve spark.ml.ann implementations for MLP
Key: SPARK-10478
URL: https://issues.apache.org/jira/browse/SPARK-10478
Project: Spark
Issue Type: Bug
Components: ML
Reporter: Feynman Liang
Priority: Critical
SPARK-9471 adds an implementation of multi-layer perceptrons. However, there
are a few issues with the current code that should be addressed, namely:
* Style guide: 4 indent method arguments, braces around one-line {{if}}s,
punctuation in scaladocs
* Comments: cryptic variable names (e.g. {{gw}}, {{gb}}, {{gwb}}) should be
documented
* Performance: parts of the code can be improved using Breeze broadcasts,
vectorized operations, and Breeze UFuncs to avoid manual iteration and leverage
BLAS optimization
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