Evaluation

Statistical Similarity

Measure how closely synthetic data matches the statistical properties of the original dataset.

Measuring Fidelity

Marginal Distribution Fidelity

Compare column-wise distributions using KS tests, Wasserstein distance, and percentile alignment.

Joint Distribution Integrity

Evaluate multivariate relationships and correlation structures to ensure dependencies are preserved.

Summary Statistic Parity

Verify that key descriptive statistics — means, variances, skewness — align between real and synthetic data.