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Table 1 Comparison of model performance and properties for non-sulphur containing structures generated by the two models

From: Molecular de-novo design through deep reinforcement learning

Model

Prior

Agent

Action basis

REINFORCE

REINFORCE + Prior

Fraction of valid SMILES

0.94 ± 0.01

0.95 ± 0.01

0.95 ± 0.01

0.98 ± 0.00

0.98 ± 0.00

Fraction without sulphur

0.66 ± 0.01

0.98 ± 0.00

0.92 ± 0.02

0.98 ± 0.00

0.92 ± 0.01

Average molecular weight

371 ± 1.70

367 ± 3.30

372 ± 0.94

585 ± 27.4

232 ± 5.25

Average cLogP

3.36 ± 0.04

3.37 ± 0.09

3.39 ± 0.02

11.3 ± 0.85

3.05 ± 0.02

Average NumRotBonds

5.39 ± 0.04

5.41 ± 0.07

6.08 ± 0.04

30.0 ± 2.17

2.8 ± 0.11

Average NumAromRings

2.26 ± 0.02

2.26 ± 0.02

2.09 ± 0.02

0.57 ± 0.04

2.11 ± 0.02

  1. Properties reported as Mean ± SD