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Synthetic Data Augmentation with Copulas

Data augmentationCopulasSynthetic dataData generationCopula
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Version3.0Latest, created on 
Jun 12, 2025 11:26 PM
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The University of Saskatchewan
Ph.D. in Interdisciplinary Studies

Created by: Carlos Enrique Diaz, MBM, P.Eng.
Email: carlos.diaz@usask.ca

Supervisor: Lori Bradford, Ph.D.
Email: lori.bradford@usask.ca

Description:

This workflow demonstrates how to assess the quality of synthetic data generated using the Synthetic Data (Copulas) component in KNIME. It uses the well-known Iris dataset as a reference.

Section 1: Original Data Analysis with 150 Observations

  • Loads and preprocesses the Iris dataset (150 rows).

  • Uses Linear Correlation and Statistics nodes to explore the original data’s structure and relationships.

Section 2: Synthetic Data with 500 Observations

  • Generates 500 synthetic rows using the Synthetic Data (Copulas) component.

  • Applies the same analysis nodes to compare the synthetic dataset with the original.

Section 3: Mixed Data Visualization

  • Allows visualization of a 3D plot of real and synthetic data for three features.

This workflow is a simple and effective way to visualize and compare the statistical quality of synthetic data using built-in KNIME nodes.

External resources

  • Synthetic Data (Copulas) Component
Loading deploymentsLoading ad hoc jobs

Used extensions & nodes

Created with KNIME Analytics Platform version 5.4.2
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    KNIME Base nodesTrusted extension

    KNIME AG, Zurich, Switzerland

    Version 5.4.1

    knime
  • Go to item
    KNIME ExpressionsTrusted extension

    KNIME AG, Zurich, Switzerland

    Version 5.4.1

    knime
  • Go to item
    KNIME Interactive R Statistics IntegrationTrusted extension

    KNIME AG, Zurich, Switzerland

    Version 5.4.0

    knime
  • Go to item
    KNIME JavasnippetTrusted extension

    KNIME AG, Zurich, Switzerland

    Version 5.4.0

    knime
  • Go to item
    KNIME Math Expression (JEP)Trusted extension

    KNIME AG, Zurich, Switzerland

    Version 5.4.0

    knime
  • Go to item
    KNIME Python IntegrationTrusted extension

    KNIME AG, Zurich, Switzerland

    Version 5.4.1

    knime
  • Go to item
    KNIME Quick FormsTrusted extension

    KNIME AG, Zurich, Switzerland

    Version 5.4.1

    knime
  • Go to item
    KNIME Statistics NodesTrusted extension

    KNIME AG, Zurich, Switzerland

    Version 5.4.0

    knime
  • Go to item
    KNIME ViewsTrusted extension

    KNIME AG, Zurich, Switzerland

    Version 5.4.2

    knime

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