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Table 4 Results of transfer learning for chemotype-biased library generation

From: QBMG: quasi-biogenic molecule generator with deep recurrent neural network

Model type

Epoch

TRL

BRL

PCL

Coumarin derivatives

PCL Scaffold

RP

Pre-trained

50

153,733(ZBL)

14,192

50,000

662

18,446

19

Direct-GRU

20

2237

14,192

50,000

37,647

6828

0

50

2237

14,192

50,000

43,402

7642

0

100

2237

14,192

50,000

43,094

7231

0

Transfer-GRU

20

2237

14,192

50,000

32,025

13,543

381

50

2237

14,192

50,000

35,890

14,251

391

100

2237

14,192

50,000

35,972

13,892

384

  1. TRL training library; BRL bioactive reference library; PCL predicted compound library; RP number of compounds existing both PCL and BRL