Machine Learning Assisted Circuit Sizing Approach for Low-Voltage Analog Circuits with Efficient Variation-Aware Optimization. - Ling-Yen Song; Chih-Yun Chou; Tung-Chieh Kuo; Chien-Nan Liu; Juinn-Dar Huang (ACM Trans. Design Autom. Electr. Syst., 2023)