Table 2 Symbol table for TraVel scheme.

From: Secure IoT data dissemination with blockchain and transfer learning techniques

Symbol

Description

\(B_{PE}\)

Ethereum private BC

\(N_w\)

IoT network

\(D_t\)

Data

\(TL_m\)

Transfer learning model

\(E_n\)

IoT nodes

\(E_u\)

SH users

\(D_l\)

Data label

\(H_{Fl}\)

Hash value

\(\zeta _k\)

Data transfer request

\(EW_u\)

Ethereum wallet user

\(EW_n\)

Ethereum wallet node

\(R_d\)

Registered entities

\(K_m\)

Known attacks

\(S_C\)

Source domain

\(Z_r\)

Zero-day attacks

\(E_{rr}\)

Least expected error

\(PK_u\)

Primary key user

\(PUBK_u\)

Public key user

\(L_{Tcy}\)

Latency

\(CL_t\)

TL classifier