Property Sheets: Network Property Sheet
From DSL
The Network property sheet can be displayed in 2 ways.
- . Double clicking on a clear area of the network in the graph view.
- . Right clicking on the name of the network in the Tree view or right clicking on a clear area of the network in the graph view. This will display the Network popup menu. Select Network Properties from the menu.
- . Select the Network Properties command in the Network menu as shown below.
The property sheets, once opened, consist of several tabs. Various tabs can be accessed by clicking on the tab name.
Shown below is a typical Network Properties Sheet with the General Tab:
Contents |
General Tab:
Shown above is the General Tab of Network Properties Sheet.
Identifier: It displays the identifier for the network. You can also specify your own identifier. Identifiers must start with a letter, and can contain letters, numerals and underscore (_).The identifier for the network shown above is Untitled2.
Name: It displays the name for the network. You can give your own name for the network. It has no limitations like the identifier. The name for the network shown above is Untitled2.
Target name Format: It is used to define the format for the special name given to the states in a target node. The special name can be set from the Node Properties Sheet. if the diagnostic properties are enabled. See Enable Diagnosis for more information.
Shown below is a snapshot of the Node Properties Sheet . If you want to use the Target name format from the Network Property Sheet then we have to set the drop down list [ 
] to Inherited.
The special name is displayed at 
.
Description:
You can give a description for this particular network here.
Sampling Tab:
The Sampling Tab allows the user to set the various parameters for the approximate inference algorithms used in GeNIe.
The Number of samples command sets the number of samples used in each subsequent execution of the simulation algorithms. The number of samples determines the precision of simulation algorithms (the more samples, the more precise the results will be) but at the same time it determines the computation time (the more samples, the longer the running time). Please keep in mind that if you would like to recompute the values with the new number of samples (larger number of samples give you a higher precision), you will need to invalidate all values (see the Invalidate values command above) and by this force GeNIe to recompute them.
The EPIS algorithm parameters are used to fine tune the EPIS algorithm execution. Click on the Explain button for a short description of the EPIS algorithm. parameters.
User Properties Tab:
The Properties tab allows the user to define properties of the node that can be later retrieved by an application program using SMILE. For example, the following tab for the node Success of the venture contains two properties: author with the value "http://www.sis.pitt.edu/~dsl" and location with the value "d:\GeNIe 1.0\Example Networks\VentureBN.dsl". Neither GeNIe nor SMILE use these properties and they provide only placeholders for them. They are under full control and responsibility of the user and/or the application program using the model. GeNIe only allows for editing them.
Add: Used to add a user defined property.
Edit: Used to edit an already defined property.
Delete: Used to delete an already defined property.
Statistics Tab:
The Statistics Tab can be used to see statistics of the following:
- The no. of nodes of each type used in the network.
- The no. of arcs used in the network.
- The no. of submodels used in the network.
The no. of text boxes used in the network.
Shown above is the statistics tab of a network. This particular network has 56 nodes and 66 arcs. Breakup of the types of nodes is shown as:
Chance - General = 56
Chance - NoisyOR = 0
