Search found 1205 matches

by shooltz[BayesFusion]
Thu Oct 24, 2019 8:25 pm
Forum: SMILE
Topic: Structure Learning scoring heuristic (Python wrapper)
Replies: 5
Views: 305

Re: Structure Learning scoring heuristic (Python wrapper)

There's no publicly available function in SMILE which takes an existing network (DBN or not) and a dataset, then calculates the log likelihood sore.
by shooltz[BayesFusion]
Mon Oct 21, 2019 4:06 pm
Forum: SMILE
Topic: Structure Learning scoring heuristic (Python wrapper)
Replies: 5
Views: 305

Re: Structure Learning scoring heuristic (Python wrapper)

GeNIe's manual is correct - at this point it's not possible to learn the structure of the DBN. If you have a dataset and use it as a data source for structure learning (including Bayesian Search learning), you'll get the network structure with non-temporal arcs (therefore the network is not a dynami...
by shooltz[BayesFusion]
Mon Oct 21, 2019 11:32 am
Forum: SMILE
Topic: Structure Learning scoring heuristic (Python wrapper)
Replies: 5
Views: 305

Re: Structure Learning scoring heuristic (Python wrapper)

Bayesian search algorithm uses log likelihood for scoring. You can obtain the score for the best network structure after learn() by calling get_last_score() method.
by shooltz[BayesFusion]
Tue Oct 15, 2019 5:37 pm
Forum: SMILE
Topic: Update error
Replies: 5
Views: 141

Re: Update error

Can you post your network here?
by shooltz[BayesFusion]
Tue Oct 15, 2019 11:44 am
Forum: SMILE
Topic: Update error
Replies: 5
Views: 141

Re: Update error

Try marking some nodes as targets. Alternatively, switch to a sampling algorith, like EPIS:

Code: Select all

net.BayesianAlgorithm = Network.BayesianAlgorithmType.EpisSampling;
by shooltz[BayesFusion]
Tue Oct 15, 2019 11:41 am
Forum: SMILE
Topic: GetNodeValue C#
Replies: 1
Views: 89

Re: GetNodeValue C#

Update doesn't work without a try because it's too complex
If your UpdateBeliefs call fails, the node values are invalid and getNodeValue throws an exception.
by shooltz[BayesFusion]
Sat Sep 28, 2019 11:40 am
Forum: SMILE
Topic: View graphically in C #
Replies: 1
Views: 187

Re: View graphically in C #

You can obtain node positions and colors from Smile.NET, but there's no function to draw a complete network.
by shooltz[BayesFusion]
Fri Sep 27, 2019 2:35 pm
Forum: SMILE
Topic: Bayes Search C#
Replies: 11
Views: 740

Re: Bayes Search C#

I have a String vector that would be the names of the nodes and a data array that represents the RB information. Assuming that your Bayesian network will include only CPT nodes: 1. start with an empty DataSet object. 2. in a loop call AddIntVariable for each node (using node name from String vector...
by shooltz[BayesFusion]
Mon Sep 23, 2019 6:08 pm
Forum: SMILE
Topic: Installing the PySMILE wrapper for spyder/anaconda 14.04
Replies: 2
Views: 212

Re: Installing the PySMILE wrapper for spyder/anaconda 14.04

General note for both jSMILE and PySMILE:

While we minimize the external binary dependencies in the wrappers, it's simply not possible to provide a single binary for Linux which will work with all Linux distributions. We can build the wrapper for specific platform if required.
by shooltz[BayesFusion]
Thu Sep 19, 2019 7:13 pm
Forum: SMILE
Topic: Bayes Search C#
Replies: 11
Views: 740

Re: Bayes Search C#

Check your PM inbox on this forum.
by shooltz[BayesFusion]
Mon Sep 16, 2019 11:46 am
Forum: SMILE
Topic: Bayes Search C#
Replies: 11
Views: 740

Re: Bayes Search C#

I am working with an evolutionary algorithm, every time I perform a certain number of inference I have to generate a new RB.
In such case, I recommend using DataSet's methods to initialize its content in memory (without going through DataSet.ReadFile).
by shooltz[BayesFusion]
Thu Sep 12, 2019 7:01 pm
Forum: SMILE
Topic: Bayes search
Replies: 7
Views: 973

Re: Bayes search

There's no image in your post. If file is not found, maybe it's just not on your machine?
by shooltz[BayesFusion]
Thu Sep 12, 2019 7:00 pm
Forum: SMILE
Topic: Bayes Search C#
Replies: 11
Views: 740

Re: Bayes Search C#

Is BayesSearch working for .NET? It is available in version 1.4.1 (not yet available on our download site). I can send you a private download link if you need Bayesian Search in your .NET program. Second is: The problem is that the file is generated in memory so I would have to save to file to read...
by shooltz[BayesFusion]
Wed Sep 11, 2019 7:26 pm
Forum: SMILE
Topic: PySMILE wrapper " To Be Done" ?
Replies: 4
Views: 688

Re: PySMILE wrapper DONE

The programmer's manual for SMILE wrappers (including PySMILE) has been updated and now includes information about DBNs, continuous/hybrid models and learning.
by shooltz[BayesFusion]
Wed Sep 11, 2019 10:12 am
Forum: GeNIe
Topic: Hybrid dynamic bayesian network-An inquiry about developing HDBN model using GeNIe
Replies: 2
Views: 896

Re: Hybrid dynamic bayesian network-An inquiry about developing HDBN model using GeNIe

As you noticed, GeNIe does not support hybrid dynamic models yet. The best approximation would be to use an unrolled structure based on a discrete dynamic model as a starting point. The unrolled model is just a plain Bayesian network, which can be modified by changing types of some nodes from CPT to...