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Prediction rigidities for data-driven chemistry
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DOI：10.1039/d4fd00101j.png)
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Abstract
En 中文
The widespread application of machine learning (ML) to the chemical sciences is making it very important to understand how the ML models learn to correlate chemical structures with their properties, and what can be done to improve the training efficiency whilst guaranteeing interpretability and transferability. In this work, we demonstrate the wide utility of prediction rigidities, a family of metrics derived from the loss function, in understanding the robustness of ML model predictions. We show that the prediction rigidities allow the assessment of the model not only at the global level, but also on the local or the component-wise level at which the intermediate (e.g. atomic, body-ordered, or range-separated) predictions are made. We leverage these metrics to understand the learning behavior of different ML models, and to guide efficient dataset construction for model training. We finally implement the formalism for a ML model targeting a coarse-grained system to demonstrate the applicability of the prediction rigidities to an even broader class of atomistic modeling problems. We demonstrate the wide utility of prediction rigidities, a family of metrics derived from the loss function, in understanding the robustness of machine learning (ML) model predictions.
Keywords:
INITIO MOLECULAR-DYNAMICS
MODELS
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