Hi Suman & Meethu, Apologies---I was wrong about KMeans supporting an initial set of centroids! JIRA created: https://issues.apache.org/jira/browse/SPARK-8018 If you're interested in submitting a PR, please do! Thanks, Joseph
On Mon, Jun 1, 2015 at 2:25 AM, MEETHU MATHEW <meethu2...@yahoo.co.in> wrote: > Hi Joseph, > I was unable to find any function in Kmeans.scala where the initial > centroids could be specified by the user. Kindly help. > > Thanks & Regards, > Meethu M > > > > On Tuesday, 19 May 2015 6:54 AM, Joseph Bradley <jos...@databricks.com> > wrote: > > > Hi Suman, > > For maxIterations, are you using the DenseKMeans.scala example code? (I'm > guessing yes since you mention the command line.) If so, then you should > be able to specify maxIterations via an extra parameter like > "--numIterations 50" (note the example uses "numIterations" in the current > master instead of "maxIterations," which is sort of a bug in the example). > If that does not cap the max iterations, then please report it as a bug. > > To specify the initial centroids, you will need to modify the DenseKMeans > example code. Please see the KMeans API docs for details. > > Good luck, > Joseph > > On Mon, May 18, 2015 at 3:22 AM, MEETHU MATHEW <meethu2...@yahoo.co.in> > wrote: > > Hi, > I think you cant supply an initial set of centroids to kmeans > > Thanks & Regards, > Meethu M > > > > On Friday, 15 May 2015 12:37 AM, Suman Somasundar < > suman.somasun...@oracle.com> wrote: > > > Hi,, > > I want to run a definite number of iterations in Kmeans. There is a > command line argument to set maxIterations, but even if I set it to a > number, Kmeans runs until the centroids converge. > Is there a specific way to specify it in command line? > > Also, I wanted to know if we can supply the initial set of centroids to > the program instead of it choosing the centroids in random? > > Thanks, > Suman. > > > > > >
