Sharma, R. and Harjule, P. 2026. Modified Gradient Descent Approach Involving Caputo Fractional Derivative with Metaheuristic Optimizer. Journal of Vibration Testing and System Dynamics. 8, 4 (Aug. 2026), 443–453. DOI:https://doi.org/10.5890/JVTSD.2024.12.006.