I've items that have a geo-spatial position and a temporal origin. For both dimensions, I build clusters so far.
I'm now in search of a way to merge this different clusters forming spatio-temporal clusters. Of course, I want to prevent calculating completely new clusters from the scratch and rather use the existing information through the previous clustering.
Is there any algorithm how to build 3d clusters by merging a previous 1d and a 2d clustering process?