Research Article

t-BMPNet: Trainable Bitwise Multilayer Perceptron Neural Network over Fully Homomorphic Encryption Scheme

Figure 7

Example of for deriving binary exponential function for the input length 8-bit. (a) Encode, encrypt, and absolute value operation of x = −1.5 of length l = 8. (b) Process of deriving ct: xint (: HE Equi). (c) Positive exponentiation process. (d) Negative exponentiation process. (e) Process of considering the sign of the input ct.a. (f) Decryption and decoding process.
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