Table 8 Comparison of temporal and spatial complexity of the proposed model with that of existing blockchain models.

From: Blockchain enabled collective and combined deep learning framework for COVID19 diagnosis

Models in blockchain

Time complexity (Sec)

Space complexity (MB)

Binary class

Multi-class

Binary class

Multi-class

LSTM+blockchain14

0.895

1.254

6.92

8.89

Bi-LSTM+blockchain33

0.725

0.962

5.54

6.98

Blockchain-based federated learning38

0.546

0.823

3.25

4.29

CLCD-Block (Proposed)

0.218

0.312

2.46

3.21

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