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Posted to issues@spark.apache.org by "zhengruifeng (Jira)" <ji...@apache.org> on 2019/09/17 09:05:00 UTC
[jira] [Created] (SPARK-29118) Avoid redundant computation in
GMM.transform
zhengruifeng created SPARK-29118:
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Summary: Avoid redundant computation in GMM.transform
Key: SPARK-29118
URL: https://issues.apache.org/jira/browse/SPARK-29118
Project: Spark
Issue Type: Improvement
Components: ML
Affects Versions: 3.0.0
Reporter: zhengruifeng
In SPARK-27944, the computation for output columns with empty name is skipped.
Now, I find that we can furthermore optimize GMM.transform by directly obtaining the prediction(double) from its probabilty prediction(vector), like what ProbabilisticClassificationModel and ClassificationModel do.
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