ASF GitHub Bot logged work on MATH-1524:

                Author: ASF GitHub Bot
            Created on: 25/Mar/20 14:58
            Start Date: 25/Mar/20 14:58
    Worklog Time Spent: 10m 
      Work Description: coveralls commented on issue #131: MATH-1524: Add 
package-info.java file in package initialization.
URL: https://github.com/apache/commons-math/pull/131#issuecomment-603888837
   Coverage remained the same at 90.547% when pulling 
**4f073eba548f55ea333ea69af1565729c9e787cc on 
chentao106:PackageInfoForClusterInitializations** into 
**6b0395898e9469fda20f011ded8dce3f9d0df907 on apache:master**.
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Issue Time Tracking

    Worklog Id:     (was: 409553)
    Time Spent: 1h 20m  (was: 1h 10m)

> "chooseInitialCenters" should move out from KMeansPlusPlusClusterer
> -------------------------------------------------------------------
>                 Key: MATH-1524
>                 URL: https://issues.apache.org/jira/browse/MATH-1524
>             Project: Commons Math
>          Issue Type: Improvement
>            Reporter: Chen Tao
>            Priority: Major
>         Attachments: centroid.png, getCenter.png
>          Time Spent: 1h 20m
>  Remaining Estimate: 0h
> There are two reason for "chooseInitialCenters" should be move out from 
> "KMeansPlusPlusClusterer":
> # k-means++ clusterer is a special case of k-means clusterer, that k-means++ 
> initialize the cluster centers with k-means++ algorithm. Another case is 
> initialize the cluster centers with random points.
> # The mini batch k-means will reuse "chooseInitialCenters". 

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