Soft Optimal Computing to Identify Surface Roughness in Manufacturing Using a Gaussian and a Trigonometric Regressor

Research output: Contributions to collected editions/worksArticle in conference proceedingsResearchpeer-review


This contribution deals with the identification of roughness as a function of gloss in manufacturing using Particle Swarm Optimization (PSO) methods. The proposed PSO method uses a Least Squares Method as a cost function to be optimized. The identification structure uses a Gaussian and a Trigonometric Regressor characterized by seven parameters to be estimated. In PSO algorithms, there is a delicate balance to maintain between exploration (global search) and exploitation (local search) and this is one of the most important issues of this optimization method. An analysis of an increment of the dimension of the search space of the PSO is proposed. This is realized through an increment of its exploitation dimension to improve the precision of the search phase of the PSO, at the cost of more computations in each iteration. Nevertheless, convergence time results to be shorter in the presented case. Thus, an optimal increment of the dimension exists which states a compromise between velocity of the convergence and precision. Measured results from a manufacturing system with and without enlargement of the search space are shown together with results obtained using a Genetic Algorithm (GA) for comparison. Advantages and drawbacks are pointed out.

Original languageEnglish
Title of host publicationSoft Computing and its Engineering Applications : Third International Conference, icSoftComp 2021, Changa, Anand, India, December 10–11, 2021, revised selected papers
EditorsKanubhai K. Patel, Gayatri Doctor, Atul Patel, Pawan Lingras
Number of pages10
Place of PublicationCham
PublisherSpringer Nature Switzerland AG
Publication date2022
ISBN (print)978-3-031-05766-3
ISBN (electronic)978-3-031-05767-0
Publication statusPublished - 2022
Event3rd International Conference on Soft Computing and its Engineering Applications - icSoftComp 2021 - Anand, India
Duration: 10.12.202111.12.2021

    Research areas

  • Curve fitting, Manufacturing applications, Particle Swarm Optimization
  • Engineering