[SPARK-5987] [MLlib] Save/load for GaussianMixtureModels by MechCoder · Pull Request #4986 · apache/spark

MechCoder · 2015-03-11T20:11:10Z

Should be self explanatory.

MechCoder · 2015-03-11T20:12:37Z

cc: @mengxr @jkbradley

SparkQA · 2015-03-11T20:12:49Z

Test build #28481 has started for PR 4986 at commit 4898d57.

This patch merges cleanly.

SparkQA · 2015-03-11T21:33:16Z

Test build #28481 has finished for PR 4986 at commit 4898d57.

This patch passes all tests.
This patch merges cleanly.
This patch adds the following public classes (experimental):
- case class Data(weights: Array[Double], mus: Array[Vector], sigmas: Array[Array[Double]])

AmplabJenkins · 2015-03-11T21:33:20Z

Test PASSed.
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mengxr · 2015-03-12T23:43:51Z

Should be private.

Agreed it should be private, but then it should be private in all other files as well.

AmplabJenkins · 2015-03-13T19:52:48Z

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shaneknapp · 2015-03-13T19:52:58Z

jenkins, test this please

MechCoder · 2015-03-13T19:55:00Z

@mengxr I am not sure if we should flatten it or not, would it be worth if the number of clusters is large? Also I think it would be better if we deal with MatrixUDT after this PR is done with. wdyt?

SparkQA · 2015-03-13T19:58:06Z

Test build #28584 has started for PR 4986 at commit 9aaa535.

This patch merges cleanly.

mengxr · 2015-03-13T20:27:25Z

The number of clusters won't be very large. Flattening an Array[Array[Double]] doesn't copy the data, so there is no overhead. The content of parquet file is easy to inspect if we list each center as a record. I think we should just use Array[Double] instead being blocked by MatrixUDT. GMM models are usually dense.

AmplabJenkins · 2015-03-13T20:46:38Z

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shaneknapp · 2015-03-13T20:48:22Z

jenkins, test this please

SparkQA · 2015-03-13T20:53:14Z

Test build #28588 has started for PR 4986 at commit 9aaa535.

This patch merges cleanly.

SparkQA · 2015-03-13T22:15:28Z

Test build #28588 has finished for PR 4986 at commit 9aaa535.

This patch passes all tests.
This patch merges cleanly.
This patch adds the following public classes (experimental):
- case class Data(weights: Array[Double], mus: Array[Vector], sigmas: Array[Array[Double]])

AmplabJenkins · 2015-03-13T22:15:34Z

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MechCoder · 2015-03-14T05:38:48Z

@mengxr I thing I have addressed your comments. sigmas is now stored as an Array of Doubles, Do you have any more comments? Thanks!

SparkQA · 2015-03-14T05:43:08Z

Test build #28607 has started for PR 4986 at commit 4321743.

This patch merges cleanly.

SparkQA · 2015-03-14T07:04:02Z

Test build #28607 has finished for PR 4986 at commit 4321743.

This patch passes all tests.
This patch merges cleanly.
This patch adds the following public classes (experimental):
- case class Data(weights: Array[Double], mus: Array[Vector], sigmas: Array[Double])

AmplabJenkins · 2015-03-14T07:04:06Z

Test PASSed.
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MechCoder · 2015-03-21T06:59:50Z

@mengxr I rebased over master and used MatrixUDT. Please review! :)

SparkQA · 2015-03-21T07:03:09Z

Test build #28937 has started for PR 4986 at commit 23d707e.

This patch merges cleanly.

mengxr · 2015-03-24T18:59:41Z

This is not efficient because it may trigger multiple passes to the parquet file. Let's call collect() directly.

MechCoder · 2015-03-24T19:31:08Z

@mengxr fixed !

SparkQA · 2015-03-24T19:33:25Z

Test build #29101 has started for PR 4986 at commit e7a14cb.

This patch merges cleanly.

mengxr · 2015-03-24T20:15:30Z

Please also update the Java example.

SparkQA · 2015-03-24T20:50:23Z

Test build #29101 has finished for PR 4986 at commit e7a14cb.

This patch passes all tests.
This patch merges cleanly.
This patch adds the following public classes (experimental):
- case class Data(weight: Double, mu: Vector, sigma: Matrix)

AmplabJenkins · 2015-03-24T20:50:27Z

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MechCoder · 2015-03-25T04:47:56Z

@mengxr I have addressed your comments. Please have a look !

SparkQA · 2015-03-25T04:48:15Z

Test build #29148 has started for PR 4986 at commit 7d2cd56.

This patch merges cleanly.

SparkQA · 2015-03-25T06:08:49Z

Test build #29148 has finished for PR 4986 at commit 7d2cd56.

This patch passes all tests.
This patch merges cleanly.
This patch adds the following public classes (experimental):
- case class Data(weight: Double, mu: Vector, sigma: Matrix)

AmplabJenkins · 2015-03-25T06:08:53Z

Test PASSed.
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mengxr · 2015-03-25T21:45:44Z

LGTM. Merged into master. Thanks!!

MechCoder · 2015-03-26T17:13:24Z

@mengxr thanks for the merge! For supporting this in PySpark, we would need support for MatrixUDT, which would need support for sparse matrices right? I could not find any existing JIRA related to sparse matrix support, if you are able to please link me to it.

mengxr reviewed Mar 12, 2015
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MechCoder mentioned this pull request Mar 18, 2015

[SPARK-6364] [MLlib] Implement equals and hashcode for Matrix #5081

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MechCoder added 3 commits March 21, 2015 03:06

[SPARK-5987] Save/load for GaussianMixtureModels

cb77095

Minor

b9794e4

Store sigmas as Array[Double] instead of Array[Array[Double]]

7422bb4

MechCoder force-pushed the spark-5987 branch from 4321743 to 23d707e Compare March 21, 2015 06:58

Rebased over master and used MatrixUDT

505bd57

mengxr reviewed Mar 24, 2015
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Minor

e7a14cb

mengxr reviewed Mar 24, 2015
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Comment thread docs/mllib-clustering.md

mengxr Mar 24, 2015

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Please also update the Java example.

Iterate over dataframe in a better way

7d2cd56

MechCoder force-pushed the spark-5987 branch from 1706b8e to 7d2cd56 Compare March 25, 2015 04:45

asfgit closed this in 4fc4d03 Mar 25, 2015

MechCoder deleted the spark-5987 branch March 26, 2015 03:01

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