[Topic-models] HLDA NCRP branching off
ccrraappy at gmail.com
Sat Mar 20 00:49:36 EDT 2010
I have some questions regarding the branching of NCRP with reference
to this earlier post by David Blei,
what are the possible paths that can be drawn? first, there is one
for each existing leaf in the tree. then, there is a new one for
each level---a new branch can be spawned at any level from the second
down. in total, this is the number of nodes in the currently
populated tree. for a particular path c, when one of the levels is a
new restaurant, the quantity (C) above is 0.
I want to ask regarding this sentence "a new branch can be spawned at
any level from the second down"
May I know why is it second down and not first down?
That means we can start spawning new nodes off the root node.
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