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Financial Innovation

Table 14 Cosine similarity of smart contract opcode frequencies

From: Detecting DeFi securities violations from token smart contract code

 

Cosine similarity

Comparison with inter-class similarity

Class

Mean

St. dev

t-value

p-value

Cohen’s d

CI(95%)

Securities violations

0.040

0.024

− 8.561

<0.001

− 0.262

[− 0.322, − 0.202]

Legitimate

0.054

0.062

7.719

<0.001

0.025

[0.019, 0.031]

 

Comparison of violations and legitimate similarities

Inter-class

0.052

0.048

7.381

<0.001

0.225

[0.165, 0.284]

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