Search found 9 matches

by ninio
Wed May 27, 2009 9:05 am
Forum: GeNIe
Topic: calculating posteriors over a set of data
Replies: 0
Views: 9214

calculating posteriors over a set of data

I have a network with some hidden variables, for which I successfully trained the parameters (and thanks again for the great support!). Now I want to calculate a set of posteriors and likelihoods for the hidden variables over some additional data set of similar variables. I can do this manual (set ...
by ninio
Tue May 26, 2009 9:34 am
Forum: GeNIe
Topic: problems with parameter learning with EM
Replies: 14
Views: 28369

Re: I can't reproduce it now

shooltz wrote:
ninio wrote:Any news on the updated code?
Send me the private message.

thanks, looks like it works fine. Its great to see such support!
by ninio
Mon May 25, 2009 7:54 am
Forum: GeNIe
Topic: problems with parameter learning with EM
Replies: 14
Views: 28369

Re: I can't reproduce it now

I had a set where this happened consistently, but I saved over the file. I will try to see if I can find a copy.

Thanks for all your help!

coming to think about it, the crashing may have happend on a slightly out of date version ( 2.0.3259.0 ) I have been using until recently. It may still be ...
by ninio
Wed May 20, 2009 5:14 pm
Forum: GeNIe
Topic: problems with parameter learning with EM
Replies: 14
Views: 28369

I can't reproduce it now

I had a set where this happened consistently, but I saved over the file. I will try to see if I can find a copy.

Thanks for all your help!
by ninio
Wed May 20, 2009 4:45 am
Forum: GeNIe
Topic: problems with parameter learning with EM
Replies: 14
Views: 28369

glad to hear

is there a time frame for the next release? Is it possible to get a preview?

I'm currently stuck with my project, being unable to train my network.


As for the crashes - the software will crash when the input network has a node with distribution with a sum grater then one, and this network is sent ...
by ninio
Tue May 19, 2009 7:22 pm
Forum: GeNIe
Topic: problems with parameter learning with EM
Replies: 14
Views: 28369

not randomizing the parameters

I have a good idea what I want, and randomizing will give my hidden variables some random meaning, which will probably not match what I want.

And while at the subject - in what units is the "Confidence" setting? I used 1 to get the results above.

I will mention that on my large network (a dozen ...
by ninio
Tue May 19, 2009 11:55 am
Forum: GeNIe
Topic: problems with parameter learning with EM
Replies: 14
Views: 28369

some more observations

I updated to the latest version, and still get this.
In addition, I found that Genie has a problem when the network loaded from an xdsl file has a cpt with a total conditional distribution that's more then one. For example, on a binary variable, if I set the probs to 1 and 1e-5, and then train ...
by ninio
Mon May 18, 2009 7:33 am
Forum: GeNIe
Topic: problems with parameter learning with EM
Replies: 14
Views: 28369

some more information

i'm using 2.0.3259.0, and the program tends to crash after several iterations of training.
by ninio
Sun May 17, 2009 12:31 pm
Forum: GeNIe
Topic: problems with parameter learning with EM
Replies: 14
Views: 28369

problems with parameter learning with EM

I'm trying to learn a network with several hidden variables and some missing data from real live data. When I remove the hidden variables and learn a Naive Bayes network, learning works fine. But when I try to learn with the hidden variables I get the following message
em: not all nodes are updated ...