hierarchical discretization

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frito
Posts: 32
Joined: Wed Dec 12, 2007 8:51 pm

hierarchical discretization

Post by frito »

Where can I read more about the hierarchical discretization used in genie e.g. what algorithm, some bechmarks of BNs built upon different discretization methods...?
mark
Posts: 179
Joined: Tue Nov 27, 2007 4:02 pm

Post by mark »

Here is the algorithm:

Input: N=# of records, K=# of desired bins.
1. Let k denote the running number of bins, initialized to k=N (each record starts in its own cluster).
2. If k=K quit, else set k=k-1 by combining the two bins whose mean value has the smallest separation.
3. Repeat 2.

Unfortunately, I don't have any references.
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