Skip to main content

Table 2 Notations and descriptions

From: IHVFL: a privacy-enhanced intention-hiding vertical federated learning framework for medical data

Notations

Descriptions

\({\mathcal {C}}\)

Active party in VFL

\({\mathcal {S}}\)

Passive party in VFL

\({\mathcal {F}}\)

Intention of active party

d

Target features

s

Target samples

\(\sigma\)

Features statement

\(\rho\)

Screening vector

\(\tau\)

Conditional vector

\(\lambda\)

Random scalar

I

The data set with target shares

\(L_1\)

The index set with target samples

\(L_2\)

The index set with aligned samples

\(\pi ,\pi ^{-1}\)

Permutations and inverses of permutations

\(\llbracket x \rrbracket\)

The ciphertext of x

\(\langle x \rangle\)

The shares of x