Search found 7 matches

by MartinA
Mon Apr 29, 2019 7:20 am
Forum: SMILE
Topic: EM algorithm and smoothing
Replies: 9
Views: 8662

Re: EM algorithm and smoothing

Yes sure it does!

I will try different ESS values and see if I can improve the learning.

Thanks !
by MartinA
Thu Apr 25, 2019 8:57 am
Forum: SMILE
Topic: EM algorithm and smoothing
Replies: 9
Views: 8662

Re: EM algorithm and smoothing

Hi Mark, Thanks a lot for your answer! I agree with you, normally it should be avoided to have a combination of variables appearing only in the new data. However that cannot really be avoided in my case (or at least as far as I see it now), that is why I thought smoothing would help here. Then, my q...
by MartinA
Wed Apr 24, 2019 3:51 pm
Forum: SMILE
Topic: EM algorithm and smoothing
Replies: 9
Views: 8662

Re: EM algorithm and smoothing

Hi Marek, Mark, Thanks a lot for your answers, and sorry if this appears to be confusing. Let me try to rephrase and give a bit more details about what I want to do. First, I now understand that if you use the uniform distribution as a starting point, you are doing some smoothing (to avoid having CP...
by MartinA
Wed Apr 24, 2019 7:57 am
Forum: SMILE
Topic: EM algorithm and smoothing
Replies: 9
Views: 8662

Re: EM algorithm and smoothing

Hi Mark,

Thanks a lot for your answer. I see the point although I do not really know how to set the prior distribution of my variable (at least without doing this manually). Could you help me out?
by MartinA
Fri Apr 12, 2019 9:29 am
Forum: SMILE
Topic: EM algorithm and smoothing
Replies: 9
Views: 8662

EM algorithm and smoothing

Hello, I have a question related to the EM algorithm implemented in the dsl_em class. Is there any smoothing implemented during the EM process? I could not find the info, and it does not seem that any parameters in the function can control this. - If yes, which is the exact smoothing implemented? - ...
by MartinA
Fri Nov 30, 2018 3:48 pm
Forum: GeNIe
Topic: Training with a completely hidden node
Replies: 2
Views: 4420

Re: Training with a completely hidden node

Oh actually that was easy :)

Thanks a lot it works well now !
by MartinA
Fri Nov 30, 2018 1:20 pm
Forum: GeNIe
Topic: Training with a completely hidden node
Replies: 2
Views: 4420

Training with a completely hidden node

Hi all, I would like to have more insights on training a BN with a node that is completely hidden. Can I do that? A small illustration to make things clearer: I am building a network for the purpose of monitoring some variations in the performances of an electronic circuit. These variations cannot b...