How to Detect Hidden Target Leakage in Public Datasets with Python and a Dependency Graph
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How to Detect Hidden Target Leakage in Public Datasets with Python and a Dependency Graph

freeCodeCamp · Sep 19, 2026

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How to Detect Hidden Target Leakage in Public Datasets with Python and a Dependency Graph
Learning September 19, 2026

Some time ago, I gave a machine learning model five columns from a public CDC dataset and asked it to predict a sixth column from the same file. The model scored an R² of 0.998, which is about as clos

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