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The Hiphive Package for the Extraction of High‐Order Force Constants by Machine Learning

The Hiphive Package for the Extraction of High‐Order Force Constants by Machine Learning

The efficient extraction of force constants (FCs) is crucial for the analysis of many thermodynamic materials properties. Approaches based on the systematic enumeration of finite differences scale poorly with system size and can rarely extend beyond third order when input data is obtained from first-principles calculations. Methods based on parameter …