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. 2023 Jun 8;19(12):3509–3525. doi: 10.1021/acs.jctc.3c00279

Table 5. RMSE Values of Individual HDNNPs and the Ensemble Trained on Reference Data Set C Using Learning on a Stationary Batch of All Training Data and Lifelong Learninga.

Individual HDNNPs Stationary data Lifelong learning
RMSE(Etrain)/meV atom–1 6.1 ± 0.2 6.9 ± 0.6
RMSE(Etest)/meV atom–1 6.8 ± 0.2 7.8 ± 0.5
RMSE(Fα,ntrain)/meV Å–1 168 ± 3 185 ± 12
RMSE(Fα,ntest)/meV Å–1 182 ± 4 205 ± 10
Ensemble    
RMSE(E)/meV atom–1 4.3 4.5
RMSE(Fα,n)/meV Å–1 121 122
a

In lifelong learning, only the conformations of reference data set B were trained for the initial 1250 epochs and then the additional conformations of reference data set C were added. The CoRe optimizer with β1b = 0.7 and lifelong adaptive data selection were applied for 2500 epochs.