Digital hardware implementation of sigmoid function and its derivative for artificial neural networks

• Published in: ICM 2001 Proceedings. The 13th International Conference on Microelectronics pp. 189 - 192
• Main Authors: Faiedh, H., Gafsi, Z., Besbes, K.
• Format: Conference Proceeding
• Language: English
• Published: IEEE 2001
• Subjects: Artificial neural networks; Chebyshev approximation; Circuit simulation; CMOS technology; Digital circuits; Frequency; Neural network hardware; Neurons; Polynomials; Silicon

In this paper we propose a polynomial approximation of the sigmoid activation function and its derivative used in artificial neural networks, and we describe the design of the equivalent digital circuit using a floating-point representation for numbers. The simulation of the circuit realized with CM...