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Posted to issues@commons.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2020/03/10 17:51:00 UTC
[jira] [Work logged] (MATH-1524) "chooseInitialCenters" should move
out from KMeansPlusPlusClusterer
[ https://issues.apache.org/jira/browse/MATH-1524?focusedWorklogId=400898&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-400898 ]
ASF GitHub Bot logged work on MATH-1524:
----------------------------------------
Author: ASF GitHub Bot
Created on: 10/Mar/20 17:50
Start Date: 10/Mar/20 17:50
Worklog Time Spent: 10m
Work Description: chentao106 commented on pull request #125: MATH-1524 Move "chooseInitialCenters" out of the KMeansPlusPlusClusterer
URL: https://github.com/apache/commons-math/pull/125
[MATH-1524](https://issues.apache.org/jira/projects/MATH/issues/MATH-1522) Move "chooseInitialCenters" out of the KMeansPlusPlusClusterer
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Issue Time Tracking
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Worklog Id: (was: 400898)
Remaining Estimate: 0h
Time Spent: 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
> Time Spent: 10m
> 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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