The Network Menu plays an important role in algorithms and allows for performing operations that relate to the entire network. It offers the following commands:
Network Properties invokes the Network Properties sheet for the current model. The network property sheet can also be invoked by double-clicking in any clear area on the main model Graph view window. See Network properties section for more information.
Update Beliefs (shortcut F5) command invokes the selected algorithm on the model. The Update Beliefs command can be also executed by pressing the Update (
) tool from the Standard Toolbar.
Update Immediately (Shortcut CTRL+F5) command toggles between the immediate and lazy updating of models.
Invalidate values is a command that mimics a tool box in a Rolls Royce, which in theory should never be needed. Normally, GeNIe will take care that all values in the nodes that are not marked as Invalid are up to date. Occasionally, because of an (unlikely) error in the program, the values in nodes that are not Invalid may be wrong. Also, if you have run a stochastic sampling algorithm and would like to recompute the values with the new number of samples (larger number of samples give you a higher precision), you may need to invalidate all values and force GeNIe to recompute them. The Invalidate values command is a manual escape for such situations. It will invalidate all values in the network and allow to update them, which in most cases should fix the problem.
Clear All Targets, Clear All Evidence, and Clear All Decisions allow for retracting all target markings, evidence, and decisions in one simple step rather than doing it for each individual node.
Algorithm submenu allows for choosing the default belief updating algorithm for Bayesian networks and the default evaluation algorithm for Influence diagrams. It is discussed in detail in the Introduction to the current section.
Dynamic Models submenu groups all operations on dynamic Bayesian networks (DBNs). This submenu is discussed in detail in the section Dynamic Bayesian networks.
Probability of Evidence (shortcut CTRL+E), Most Probable Explanation and Annealed MAP are special algorithms discussed in Special algorithms section.
Value of Information is a special algorithms for Influence diagrams, discussed in the Influence diagrams section.
Sensitivity Analysis is a model exploration technique discussed in Sensitivity analysis in Bayesian networks section.
Strength of Influence calculates the strength of influence for every model arc. It is a model exploration technique that is discussed in Strength of influences section.
Show Adjacency Matrix shows the adjacency matrix of the model graph and is discussed in the Graph View section.
Show Nodes by Indegree invokes a dialog with a list of all nodes, sorted by their indegree. The dialog is discussed in the Structural analysis section.
Show Equations invokes a dialog with a list of all equations used in the model. The dialog is discussed in the Constructing equation-based models section.
Geoprocessing... invokes a dialog for processing map files, discussed in detail in Geoprocessing section.
Obfuscate... is a special algorithm for obfuscating the network for the purpose of protecting intellectual property, discussed in Obfuscation section.