Within an hour, she had a model: cross-validated ( Q^2 = 0.78 ), a strong predictive power. The model told her exactly which regions of the molecule mattered most. A positive coefficient at a certain grid point meant placing a bulky group there boosted activity; a negative coefficient meant it killed it.
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Elena smiled. “No. It’s free. Open source. Peer-reviewed. Some lab in Paris wrote it a decade ago. And it just saved our project.” open3dqsar