Semnan University Press Journal of Rehabilitation in Civil Engineering 2345-4415 12 4 2024 11 01 Development of a New Modified Sonar Inspired Optimization based on Machine Learning Methods for Evaluating Compressive of High-Performance Concrete 116 135 8675 10.22075/jrce.2024.33564.2025 EN Ali Nikkhoo Associate Professor, Faculty of Engineering, University of Science and Culture, Tehran, Iran Amin Moshtagh Ph.D. Student, Department of Civil Engineering, University of Science and Culture, Tehran, Iran Mehri Mehrnia Ph.D. Student, Department of Biomedical Engineering, Northwestern University, United States Journal Article 2024 03 16 The nonlinearity observed in high-performance concrete (HPC) can be attributed to its distinctive features. This study examines the effectiveness of expert frameworks in determining compressive strength, aiming to enhance accuracy through the development of a master artificial neural network (ANN) system utilizing the sonar inspired optimization (SIO) algorithm. The ANN model employs exploratory data to establish initial optimal weights and biases, thereby improving precision. Comparison with previous studies validates the accuracy of the proposed system, demonstrating that the SIO-ANN hybrid model offers finer estimation of high-performance concrete properties. Results consistently show a coefficient of determination (R2) exceeding 0.972 and a 50%-67% reduction in error rates compared to conventional fitting curve approaches. Parameters such as population, weight, and bias within the SIO-ANN framework are continuously updated and optimized to achieve optimal values efficiently. Additionally, the SIO-ANN model exhibits superior runtime performance compared to other models. Consequently, the proposed SIO-ANN approach emerges as a viable alternative for accurately assessing and predicting the compressive strength of high-performance concrete. https://civiljournal.semnan.ac.ir/article_8675_f4d674809dab27713f7d2bfef322f59e.pdf