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Working with a model

A model is an abstract representation that approximates the behavior of a system. In Terarium, you can build a chain of complex operations to recreate, edit, configure, stratify, calibrate, and simulate models.

Diagram and model representations of an SEIRHD model

Note

For information about:

Model resource

A model resource represents a model you've uploaded to or created in Terarium.

In a workflow graph, a model resource shows its underlying diagram or equations. You can use the resource to:

  • Open, review, and enrich the model variables, parameters, observables, and transitions.
  • Edit or stratify the model.
  • Compare it to other models.
  • Create model configurations or intervention policies.

Model resource for a SIDARTHE model of COVID-19 with a diagram preview

  • Inputs

    • None

  • Outputs

    • Model
Add a model resource to a workflow
  • Drag the resource from the Models section of the Resources panel.
Copy a model
  1. Add the Model operator to a workflow graph and connect it to an Edit model operator.
  2. Click Open on the Edit model operator.
  3. Click Save for re-use, enter a name for the copy, and click Save.

What can I do with a model resource?

Hover over the output of the model resource and click link to use the model as an input to one of the following operators.

  • Modeling

    • Edit model: Add, remove, or change state variables, transitions, parameters, rate laws, and observables.
    • Stratify model: Divide populations into subsets along demographic characteristics such as age and location.
    • Compare models: Compare side-by-side with other models to understand their similarities and differences.

  • Configuration and intervention