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User Forums => HUGIN GUI Discussion => Topic started by: lauchlin on August 14, 2012, 07:17:14

Title: Creating DBN using the GUI
Post by: lauchlin on August 14, 2012, 07:17:14
Hi,

I am currently working on some OO DBNs and at the moment am using the Java api to programmatically using a sliding window approach to roll out an n timestep DBN.  My colleague mentioned that you can use the GUI to do this but according to this post http://forum.hugin.com/index.php?topic=148.msg313#msg313 it is not possible.  Seeing as this post is from 2009 is it still the case that DBNs can only be done programmatically?

Thanks.
Title: Re: Creating DBN using the GUI
Post by: Anders L Madsen on August 14, 2012, 09:14:05
You can create a finite time-sliced model with a fixed number of time steps using OOBNs.

If the number of time steps, in principle, is infinite or you only want to represent a limited number of times slides in the model, e.g., three, and use a sliding window to represent a snapshot, then it is necessary to implement the process of moving the evidence and updating the belief state using one of the APIs. This is not yet supported by the tool.

You can use the HUGIN GUI to create the desired number of instances to represent the sliding window.