Child pages
  • WebSimulator Administration

Contents

Overview

The administration page allows you to set up and publish your models via the BayesiaLab server.

There are two ways to publish a network:

  • Using the Simulator, i.e. the observations set on the Input Nodes are used to update the posterior probability distributions of the Output Nodes.
  • Using the Adaptive Questionnaire, i.e. the Input Nodes are dynamically ordered to take into account the information they bring to the set of Target Nodes, given the current set of observations.

Login

The administration page is available via the simulator page by clicking the navigate button and selecting Go to Admin, or directly via the following URL: http://simulator.bayesialab.com/#!adminlogin

Your User Name and Password are the same as your Bayesia License Server credentials, which were originally emailed to you from bayesialab@bayesia.com (Subject: Bayesia License Server Login Information). If you cannot find this email, please request a new password via the following link: http://bls1.bayesia.com/users/resetPassword.

If you do not yet have BLS credentials associated with your BayesiaLab license, you will first need to use your BayesiaLab Client Identifier (format: AAAA-BBBB-CCCC-DDDD) to sign in to the Bayesia License Server and register.

If you have multiple accounts, you will have to select the account you want to use to publish your network.

 

 

Setting up your Simulator

Click the Browse button to select the Bayesian network (XBL file) you want to base your simulator on, and then click Upload to send it to the server.

By default, the Name of the simulator takes the name of the XBL file. This field is mandatory. This is the name that will identify your model in the list of all the available simulators.

The Author field is also mandatory. It is associated with the properties of your model that are available by clicking the Information icon .

You have to use BayesiaLab's WebSimulator Editor to specify what are the Input and Output variables.

The Description editor allows you to provide a detailed description of your model and simulator. This description will be available by clicking the Information icon . The default description is taken from the comment section of the selected Bayesian network (Network | Properties | Comments in BayesiaLab).

You can select an image for illustrating your simulator. For example, a screen-shot of the Bayesian network can be useful to show end users the qualitative part of the model.

  • Click Browse to send the selected image to the server
  • Click to remove the image
  • Click to preview the selected image

This image will be available for end users by clicking on the information icon

Example

  • The Information Monitor is a monitor that indicates the Joint Probability of the current pieces of evidence, as well as the Global Utility, if the Bayesian network contains Utility nodes.
  • Display Variations shows a graphical representation of the impact of the pieces of evidence on the output nodes, either with respect to the previous state or to the Reference State.
  • The Initial Reference State corresponds to the probabilities and values of the marginal distribution, i.e. without any observation. When you check this option, the variations will be computed as the difference between the current state and the reference state. Otherwise, the variations are computed as the difference between the current state and the previous state, i.e. the one before setting the last piece of evidence.
  • Left and Right Layouts allows you to set a default layout to your simulator.

To customize your WebSimulator page, you can add a Title Bar.

This bar can include:

  • A Logo that will be placed at the upper left corner of the webpage;
  • A URL associated with the logo;
  • A Title (centered);
  • A Theme Color.

Example


Editing the Properties

This function allows you to modify the properties of the selected simulator.

A simulator that is currently Published on the server cannot be edited. You first have to Unpublish it.

 

Publishing the Simulator

Once your simulator fully configured, you can publish it on the server. Depending on your subscription, you can choose to make the simulator public  or private .

The listed dates show the respective expiration dates of your subscriptions.

If you choose to publish a private model, you will need to create a password that will be linked to the Identifier of your simulator. 

Passwords should have at least 8 characters, including one or more numerical digits.

The icon indicates that the model is published on the server, and that can be accessed by everyone with in Internet connection.

The icon indicates that the model is published on the server, but that it can only be accessed by users to whom you have provided the Direct URL and the password you defined.

 

Show Details

This function returns all the parameters of the simulator, including its Identifier and Direct URL when the model is published, as well as the Password when it's a private model. 

When the simulator is private, the end users have to get the Direct URL to access the corresponding web page and be able to enter the associated password.

 

Run

Clicking the Run button allows to open the simulator page. The corresponding identifier is automatically added to the URL and the simulator is loaded.

Setting up your Adaptive Questionnaire

Click the Choose File button to select the Bayesian network (XBL file) you want to base your adaptive questionnaire on, and then click Upload to send it to the server.


By default, the Name of the adaptive questionnaire takes the name of the XBL file. This field is mandatory. This is the name that will identify your model in the list of all the available questionnaires.

The Author field is also mandatory. It is associated with the properties of your model that are available by clicking the Information icon .

You have to use the BayesiaLab's WebSimulator Editor to specify what are the Input and Output variables, as well as the Target variables that will be used for ordering the Input variables.

The Costs associated with the nodes are also taken into account in the computation of the value of information of each variable. The costs correspond to the price to pay to get evidence on the variables (the states do not matter).

The Description editor allows you to provide a detailed description of your model and adaptive questionnaire. This description will be available by clicking the Information icon . The default description is taken from the comment section of the selected Bayesian network (Network | Properties | Comments in BayesiaLab).

You can select an image for illustrating your adaptive questionnaire. For example, a screen-shot of the Bayesian network can be useful to show end users the qualitative part of the model.

  • Click Browse to send the selected image to the server
  • Click to remove the image
  • Click to preview the selected image

This image will be available for end users by clicking on the information icon

Example

  • The Information Monitor is a monitor that indicates the Joint Probability of the current pieces of evidence, as well as the Global Utility, if the Bayesian network contains Utility nodes.
  • Display Variations shows a graphical representation of the impact of the pieces of evidence on the output nodes, either with respect to the previous state or to the Reference State.
  • The Initial Reference State corresponds to the probabilities and values of the marginal distribution, i.e. without any observation. When you check this option, the variations will be computed as the difference between the current state and the reference state. Otherwise, the variations are computed as the difference between the current state and the previous state, i.e. the one before setting the last piece of evidence.
  • Top Left, Bottom Left and Right Layouts allows you to set a default layout to your adaptive questionnaire.

To customize your WebSimulator page, you can add a Title Bar.

This bar can include:

  • A Logo that will be placed at the upper left corner of the webpage;
  • A URL associated with the logo;
  • A Title (centered);
  • A Theme Color.

Example


Editing the Properties

This function allows you to modify the properties of the selected adaptive questionnaire.

An adaptive questionnaire that is currently Published on the server cannot be edited. You first have to Unpublish it.

 

Publishing the Adaptive Questionnaire

Once your adaptive questionnaire fully configured, you can publish it on the server. Depending on your subscription, you can choose to make the simulator public  or private .

The listed dates show the respective expiration dates of your subscriptions.

If you choose to publish a private model, you will need to create a password that will be linked to the Identifier of your adaptive questionnaire. 

Passwords should have at least 8 characters, including one or more numerical digits.

The icon indicates that the model is used as an adaptive questionnaire.

The icons indicates that the model is published on the server, and that can be accessed by everyone with in Internet connection.

The icons indicates that the model is published on the server, but that it can only be accessed by users to whom you have provided the Direct URL and the password you defined.

 

Show Details

This function returns all the parameters of the adaptive questionnaire, including its Identifier and Direct URL when the model is published, as well as the Password when it's a private model.

When the adaptive questionnaire is private, the end users have to get the Direct URL to access the corresponding web page and be able to enter the associated password.


Run

Clicking the Run button allows to open the adaptive questionnaire page. The corresponding identifier is automatically added to the URL and the questionnaire is loaded.

 

Change your Account or Logout

Clicking the icon  allows you to change the account you are using (available only when you have multiple accounts) and to log out.