I am trying to compare the clustering results of KMeans & O-Cluster. I am able to cluster my 4000 records data (ID, V1, V2, V3, V4) using K-means into 50 clusters. I am trying to do the same suing O-Cluster, but it keeps grouping all the data in one cluster. Any idea what I am missing
My table (ID, V1, V2, V3, V4, V5) used to be defined as (Varchar2, float, float, float, float, float). Now, I changed it to (Number, float, float, float, float, float).
Same problem in a different way. Only 700 records out of ~4K were assigned to one cluster!
What do you think?
Thanks Mark, I guess this explains what is happening here as my values look like below, I guess OC is not able to detect any split in the data because of the small difference between the values. Not sure if this makes any sense!
(ID, V1, V2, V3, V4)
(123, 0.00124, 0.00114, 0.00110, 0.00105, 0.00100)