Have you verified the trunk code on some real data. I am getting same point for all clusters regardless of the distnce measure
Robin On Wed, Feb 17, 2010 at 6:41 PM, Pallavi Palleti < pallavi.pall...@corp.aol.com> wrote: > Yes. It shouldn't be a problem. My point was that we are extending > numpoints as part of ClusterBase, though we are not using it in SoftCluster. > Other that that, I don't see any issue w.r.t. functionality. > > > Thanks > Pallavi > > Robin Anil wrote: > >> In the impl of SoftClusters on writeOut it calculates the centroid and >> writes it and when read(in) it reads the centroid in to the center. >> >> In ClusterDumper it reads into the ClusterBase and does value.getCenter(); >> It should work normally right >> >> Robin >> >> >> >> On Wed, Feb 17, 2010 at 6:02 PM, Pallavi Palleti < >> pallavi.pall...@corp.aol.com> wrote: >> >> >> >>> Yes. But not the total number of points. So, the numpoints from >>> ClusterBase >>> will not be used in SoftCluster. numpoints is specific to Kmeans similar >>> to >>> weightedpoint total for fuzzy kmeans. >>> >>> >>> Robin Anil wrote: >>> >>> >>> >>>> the center is still the averaged out centroid right? >>>> weightedtotalvector/totalprobWeight >>>> >>>> >>>> >>>> On Wed, Feb 17, 2010 at 5:10 PM, Pallavi Palleti < >>>> pallavi.pall...@corp.aol.com> wrote: >>>> >>>> >>>> >>>> >>>> >>>>> I haven't yet gone thru ClusterDumper. However, ClusterBase would be >>>>> having >>>>> number of points to average out (pointTotal/numPoints as per kmeans) >>>>> where >>>>> as SoftCluster will have weighted point total. So, I am wondering how >>>>> can >>>>> we >>>>> reuse ClusterBase here? >>>>> >>>>> >>>>> Thanks >>>>> Pallavi >>>>> >>>>> Robin Anil wrote: >>>>> >>>>> >>>>> >>>>> >>>>> >>>>>> yes. So that cluster dumper can print it out. >>>>>> >>>>>> On Wed, Feb 17, 2010 at 5:02 PM, Pallavi Palleti < >>>>>> pallavi.pall...@corp.aol.com> wrote: >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>>> Hi Robin, >>>>>>> >>>>>>> when you meant by reusing ClusterBase, are you planning to extend >>>>>>> ClusterBase in SoftCluster? For example, SoftCluster extends >>>>>>> ClusterBase? >>>>>>> >>>>>>> Thanks >>>>>>> Pallavi >>>>>>> >>>>>>> >>>>>>> Robin Anil wrote: >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>>> I have been trying to convert FuzzyKMeans SoftCluster(which should >>>>>>>> be >>>>>>>> ideally be named FuzzyKmeansCluster) to use the ClusterBase. >>>>>>>> >>>>>>>> I am getting* the same center* for all the clusters. To aid the >>>>>>>> conversion >>>>>>>> all i did was remove the center vector from the SoftCluster class >>>>>>>> and >>>>>>>> reuse >>>>>>>> the same from the ClusterBase. These are essentially making no >>>>>>>> change >>>>>>>> in >>>>>>>> the >>>>>>>> tests which passes correctly. >>>>>>>> >>>>>>>> So I am questioning whether the implementation keeps the average >>>>>>>> center >>>>>>>> at >>>>>>>> all ? Anyone who has used FuzzyKMeans experiencing this? >>>>>>>> >>>>>>>> >>>>>>>> Robin >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>> >>>> >>> >> >> >
