BayesFusion Support Forum

Just want know if there is any difference between way 1 and way 2

way 1 (set and update)
set note evidence -> update
set next note evidence -> update
. . .

way 2 (set all of evidence then update once)
set note evidence
set next note evidence
. . .

update

please advise

Hi,

Your code apparently uses 1-based temporal indices (the loop goes from 1 to
6 with 6 slices), while Network.SetTemporalEvidence requires the temporal index to be zero-based.

The internal C++ implementation of SetTemporalEvidence simply stores the temporal index and outcome without validation ...

We recently found out that the probabilities generated by API (API - DBN we received in June 2009) DID NOT match the probabilities generated by GeNie.



net. ClearAllEvidence ();
net. SliceCount = myTable.Rows.Count;

foreach (DataRow myRow in myTable.Rows)
setEvidenceProcess(myRow, actionNode ...

Is there a easy way to retrieve the structure of a BN at run time?
It seems I can use getParents/ getChildren to read node one by one in a loop and then determine the relationship. but just wonder if there is any easy way?

Our problem has been solved.

there is no return value for this void method. so if there are a lot nodes and states need to set (loop), we have to check the probabilities generated. It is hard for us to debug.

void setEvidence(String nodeId, String outcomeId)

How do I know the following setEvidence is properly set or not if there are several nodes and states need to set?
net.SetEvidence(appNodeName, StateName);

Thanks

One more thing.

I guess getting the value of MAU Node is as the same as the way get Value Node mentioned above?

Thanks

we have a couple of chance nodes and few value nodes.

What is the best way to get Value Node value

double expectedUtility = net.GetNodeValue("Node1");
??

Also, we need to read BN file and get all of those nodes(Chance, Value),
how to identify or distinguish change node and value before the method of
GetOutcomeIds?

If it is Chance node then
use GetOutcomeIds
else
use other method


foreach (int handle in net)
{

String[] outcomeIds = net ...

We have several Chance nodes and Value nodes.

We need to get the value of Value Node

The following code is working for chance node but not working for Value Node

error:


foreach (int handle in net)
{
String[] outcomeIds = net.GetOutcomeIds(handle);
}

Could you tell me why or is there other method I can use?