[1] [1] FELZMANN I, FILHO J F, WANNER L. Risk-5: controlled approximations for RISC-V ［J］. IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, 2020, 39(11): 4052-4063.

[2] [2] LIU W, LOMBARDI F, SCHULTE M. Approximate computing: from circuits to applications ［J］. Proceedings of the IEEE, 2020, 108(12): 2103-2107.

[3] [3] JIANG H, SANTIAGO F, MO H. Approximate arithmetic circuits: a survey, characterization, and recent applications ［J］. Proceedings of the IEEE, 2020, 108(12): 2108-2135.

[4] [4] MRAZEK V, HRBACEK R, VASICEK Z, et al. EvoApprox8b: library of approximate adders and multipliers for circuit design and benchmarking of approximation methods ［C］// Design, Automation & Test in Europe Conference & Exhibition (DATE). Lausanne, Switzerland. 2017: 258-261.

[5] [5] ULLAH S, MURTHY S, KUMAR A. SMApproxLib: library of FPGA-based approximate multipliers ［C］// ACM/ESDA/IEEE Design Automation Conference (DAC). San Francisco, CA, USA. 2018: 1-6.

[6] [6] NARAYANAMOORTHY S, MOGHADDAM H, LIU Z, et al. Energy-efficient approximate multiplication for digital signal processing and classification applications ［J］. IEEE Transactions on Very Large Scale Integration (VLSI) Systems, 2015, 23(6): 1180-1184.

[7] [7] STROLLO A, NAPOLI E, CARO D, et al. Approximate multipliers using static segmentation: error analysis and improvements ［J］. IEEE Transactions on Circuits and Systems I: Regular Papers, 2022, 69(6): 2449-2462.

[8] [8] WANG J, KUANG S, LIANG S. High-accuracy fixed-width modified booth multipliers for lossy applications ［J］. IEEE Transactions on Very Large Scale Integration (VLSI) Systems, 2011, 19(1): 52-60.

[9] [9] HE Y, YI X, ZHANG Z, et al. A probabilistic prediction-based fixed-width booth multiplier for approximate computing ［J］. IEEE Transactions on Circuits and Systems I: Regular Papers, 2020, 67(12): 4794-4803.

[10] [10] CHEN K, LIU W, HAN J, et al. Profile-based output error compensation for approximate arithmetic circuits ［J］. IEEE Transactions on Circuits and Systems I: Regular Papers, 2020, 67(12): 4707-4718.