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Explore the Extended Definitions, OML Guides, Block Library, API Guide and Glossary.
romAI
Post-Processor Tab
The Post-Processor tab lets you visualize and evaluate the trained ROM.
Architecture (SINDy)
When you use the SINDy method, the Architecture tab contains the approximate system equation.

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Reference Guides
Explore the Extended Definitions, OML Guides, Block Library, API Guide and Glossary.
- Extended Definitions for Advanced Users
  PDF file with in-depth information on key topics in the User's Guide.
- Scripting Guide for OpenMatrix Language
  OpenMatrix is a mathematical scripting language.
- Reference Guide for OpenMatrix Language Functions
  The Reference Guide contains documentation for all functions supported in the OpenMatrix language.
- Block Reference Guide
  Describes all of the blocks in the installed Twin Activate library.
- Function Guide for Twin Activate
  Provides information about developing and simulating models through the Twin Activate Application Program Interface.
- romAI
  - Introduction
    romAI is an application that is comprised of libraries from the Altair Composeand Altair Twin Activate software products.
  - Design Fundamentals
    romAI serves two purposes.
  - Theoretical Framework
    Some system theory terminology must be understood.
  - ROM Framework
  - Workflow
    The typical workflow has four steps.
  - Installation
    The romAI tool is enabled through Extension Manager.
  - GUI
    The first steps of the workflow are accomplished through the GUI.
  - Pre-Processor Tab
    The Pre-Processor tab contains the optional pre-processing step.
  - Builder Tab
    The Builder tab facilitates the training step.
  - Post-Processor Tab
    The Post-Processor tab lets you visualize and evaluate the trained ROM.
    - Check Loss
      View the overall training, validation, and test loss.
    - Check Accuracy
      The R² Accuracy check is applicable only for static models.
    - Define Hyper Planes
    - Time Simulation Tab
      If romAI is used to generate dynamic ROMs, it is important to have a tool that easily performs preliminary time simulations to assess the accuracy of the transient behavior after the romAI model has been trained.
    - Instance Evaluation Tab
      romAI can be used to generate static ROMs.
    - Report Generation
      The report generation tools can be accessed from Tools menu.
    - Architecture (SINDy)
      When you use the SINDy method, the Architecture tab contains the approximate system equation.
  - ROM Generation Tips
  - Batch Training
    The training procedure can be carried over without using the GUI.
  - Batch Execution
    The simulation and evaluation of a romAI model can be also done via batch in the Compose OML editor without the need to deploy the trained romAI model into a Twin Activate block, using the romAI_execute function.
  - romAI Block
    After you install the romAI library in Twin Activate, a new palette appears in the Palette Browser.
  - Examples
  - Frequently Asked Questions
- Glossary
  Key terms associated with the software.
Frequently Asked Questions
You've got questions? We've got answers!

Architecture (SINDy)

When you use the SINDy method, the Architecture tab contains the approximate system equation.

Note: This section is only applicable if Method has been set to SINDy as the training method in the Builder tab.

When you have created a model using the SINDy method, you automatically get access to the approximate system equation. You can copy the formula and reuse it from the Architecture tab.

Depending on the precision set, the coefficient is updated with the corresponding digits.

This feature is useful for creating smarter and more robust control system algorithms.