Well, weka still stands as an option. And frankly, you can call R from java pretty easily.
But more importantly, *experimenting* with these alternatives doesn't need to be in Java. You can noodle around with all the clustering algorithms in the world, select one and port it into Java or find an implementation. And if you don't describe your problem in a bit more detail, we can't help you. Clustering specifically and machine learning in general is domain dependent. Your graphs don't explain what your data is, what your are trying to do, what results you expect to get nor why you don't like the results you are getting. It is not obvious. I note that I asked essentially these same questions 10 days ago. On Sun, Aug 14, 2011 at 11:35 PM, Alexander Kerner < [email protected]> wrote: > Matlab or R is not an option, since I need to integrate this clustering > into an existing Java program. > > On 08/05/2011 06:02 PM, Jeff Eastman wrote: > >> You may be better off experimenting with Weka (or MatLab or R) to try out >> various clustering algorithms on your data. Unless you have billions of >> points this sort of low-dimension clustering can all be done in memory and >> you don't need Mahout. >> >> >> -----Original Message----- >> From: Alexander Kerner >> [mailto:a.kerner@dkfz-**heidelberg.de<[email protected]> >> ] >> Sent: Friday, August 05, 2011 7:28 AM >> To: [email protected]>> "[email protected]" >> Subject: Re: Clustering Data >> >> Here is a link: >> >> Clustering >> data<http://kerner.cc/box.**tightening.challenges.png<http://kerner.cc/box.tightening.challenges.png> >> > >> >> On 08/05/2011 02:31 PM, Sean Owen wrote: >> >>> (Attachments don't come through on apache.org<http://apache.org> >>> mailing lists. Can you post it elsewhere, or describe it?) >>> >>> On Fri, Aug 5, 2011 at 1:30 PM, Alexander Kerner >>> <[email protected]<**mailto:a.kerner@dkfz-**heidelberg.de<[email protected]>>> >>> wrote: >>> >>> Hi all, >>> >>> I would like to cluster following data (see attached picture) into >>> three >>> groups (light blue, dark blue, black). >>> Can I use Apache Mahout for this? I want to integrate clustering >>> within >>> my existing Java application. >>> What algorithm would I need to use and how do I set this up >>> programatically? >>> >>> Many thanks, >>> Alex >>> >>> >>> >>> > -- > Alexander Kerner > PhD Student > > Divison of Stem Cells and Cancer A010 > German Cancer Research Center, DKFZ > and > Heidelberg Institute for Stem Cell Technology > and Experimental Medicine > HI-STEM GmbH > > Neuenheimer Feld 280 > 69120 Heidelberg > > Tel.: +49(0)6221/42-3922 > Fax: +49(0)6221/42-3902 > > Email: [email protected] > >
