Hi Robert,
First, I modified cluster.jsp and now the cluster has a vivisimo
look. I used javascript to show the treeview. Another small change
is that I call the cluster recursively twice, so that two levels of
> clustering are shown.
Yep, this is the simplest way of inducing a hierarchy. There are
algorithms that do it faster -- a whole spectrum of agglomerative or
divisive approaches (AHC), a simple overlap-merging method used in STC
or the commercial version of Lingo clustering component. Vivisimo most
likely uses a single-pass variant as well.
D.
