BayesFusion Support Forum

Hi,

The tornado diagram is only available in GeNIe, not in SMILE.

Best,

Martijn

Hi,

Polytree is the algorithm proposed by Pearl:
Here's a reference:

Judea Pearl. (1986). Fusion, Propagation, and Structuring in Belief Networks. Artificial Intelligence, 29(3), 241-288
Pdf: http://www.ece.tamu.edu/~bjyoon/ecen689 ... l_1986.pdf

Hi Vikram,

Did you use the VS 2005 version of our library?
You can find it on our download page:
http://genie.sis.pitt.edu/index.php/downloads

Best,

Martijn

Hi, The SMILE library does not have the ability to read from a database directly. In general, you would have to implement that yourself (in your own code) and, using the SMILE library, construct the DSL_network object from what you have read from your database. Are you storing whole xdsl files in yo...

Hi Oscar, One more question. I don't quite understand what the difference is between having the DBN unrolled or not. Does it make any difference to the parameter learning process? No, it's just a matter of representation. A DBN is in fact just a normal Bayesian network, with some added symantics (we...

We have the Annealed MAP algorithm implemented which will find the most probable sequence of states, but it doesn't work directly on DBNs, i.e. with temperal plates. Currently it crashes. It will work when you unroll your network. You can find it under Network -> Annealed Map Right clicking on the n...

Hi Oscar, I've tried to run EM myself on your data and network (which was attached to your previous post) and found a few thing you will have to fix. I wasn't successful running the SMILE code, and when trying to learn the parameters using GeNIe I found the following: 1. There's a mismatch between v...

Hi Oscar, Since your network is a DBN, you may need a different approach to EM learning (Shooltz, does MatchNetwork work with DBNs already?) On our wiki we have two tutorials dealing with performing EM on DBNs: http://genie.sis.pitt.edu/wiki/SMILearn_Tutorial_6:_Learning_with_the_EM_Algorithm_(Dynam...

Hi YY,

As far as I can tell you can only replace missing values one column at a time.

Best,

Martijn

Hi YY, You can update the network by pressing F5 (for updating once), or by pressing ctr-F5 (for continuously updating the network). For a more convenient view of all posteriors you can select all the nodes, press the right mouse button and go to view as-> Bar chart. This will show all nodes as bar ...

hi Suchard,

Yes, that's how it works.

Best,

Martijn

Hi, You would need the joint probability distribution of the nodes you are interested in. Unfortunately, it is not possible to acquire such a distribution in GeNIe directly, but it is possible to manually try and acquire what you need. Don't know how feasible it will be to do it by hand though. We'v...

Hi,

It's not part of the GeNIe installation, it actually didn't exist yet
The wiki page was never finished.

I have created it and you can find a link to tutorial17.xdsl on the page.
https://genie.sis.pitt.edu/wiki/GeNIe_T ... n_Networks

Best,

Martijn

Hi Sumin,

Most likely you'll need to correct:
naive.setClassVariableId("type");

Check if the column name is exactly "type"

To be safe you could check if the input file works properly in GeNIe.

Best,

Martijn

Hi, There's useful information in the SMILE documentation, http://genie.sis.pitt.edu/wiki/Reference_Manual:_DSL_bs You'll find explanation of the parameters that can be set there. Basically the algorithm does a hill climbing search with random restarts. The BDeu metric is used for the scoring of the...