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Jun 24, 2026 · Artificial Intelligence

Why Kriging and Gaussian Process Regression Share a Math Framework Yet Perform So Differently

This article benchmarks Kriging variants, Gaussian Process Regression, and several machine‑learning baselines on the SPE9 3‑D permeability dataset, revealing why GPR dramatically outperforms Kriging in accuracy despite their shared covariance‑kernel foundation, and explains the occurrence of negative R² scores.