Using Hybrid Filter-Wrapper Feature Selection With Multi-Objective Improved-Salp Optimization for Crack Severity Recognition

Abstract

The emerging technology of Structural Health Monitoring (SHM) paved the way for spotting and continuous tracking of structural damage. One of the major defects in historical structures is cracking, which represents an indicator of potential structural deterioration according to its severity. This paper presents a novel crack severity recognition system using a hybrid filter-wrapper with multi-objective optimization feature selection method. The proposed approach comprises two main components, namely, (1) feature extraction based on hand-crafted feature engineering and CNN-based deep feature learning and (2) feature selection using hybrid filter-wrapper with a multi-objective improved salp swarm optimization. The proposed approach is trained and validated by utilizing 10 representative UCI datasets and 4 datasets of crack images. The obtained experimental results show that the proposed system enhances the performance of crack severity recognition with ≈ 37% and ≈ 31% increase in recognition average accuracy and F-measure, respectively. Also, a reduction rate of ≈ 67% is achieved in the extracted feature set with all the tested datasets compared to the conventional classification approaches using the whole set of features. Moreover, the proposed approach outperforms other approaches with classical feature selection methods in terms of feature reduction rate and computational time. It is noticed that using VGG16 learned features outperforms using the fused hand-crafted features by 17.7%, 15.9%, and 23.5% for fine, moderate, and severe crack recognition, respectively. The significance of this paper is to investigate and highlight the impact of applying multi-feature dimensionality reduction through adopting hybrid filter-wrapper with multi-objective optimization methods for feature selection considering the case study of crack severity recognition for SHM.

A Novel Approach for Detection of Pavement Crack and Sealed Crack Using Image Processing and Salp Swarm Algorithm Optimized Machine Learning

“…us, this finding complies with results reported in recent studies that utilize hybrid computing models in civil engineering [119][120][121][122][123][124][125]. Although SSA has been demonstrated to be an effective swarm intelligent method used for solving various complex optimization tasks Houssein et al 2020; [76,126,127], its application in constructing sophisticated computer vision-based systems is still rare. erefore, the integration of SSA into the proposed framework of CV-SSA-SVM can be considered as an attempt to fill this gap in the literature and point out the potentiality of this swarm-based stochastic search in optimizing other similar computer vision models.…”

Crack damage monitoring for compressor blades based on acoustic emission with novel feature and hybridized feature selection

“…In addition, the traditional filter and embedded methods are used to evaluate the effectiveness of SCES, including intra-class distances (ICD), 45 ReliefF, 24 minimum redundancy and maximum relevance (mRMR), 46 decision trees. 23 After normalization, the result of feature evaluation is shown in Figure 12.…”

“…23 Therefore, feature selection (FS) is an important way to achieve high accuracy with the least features. Elhariri et al 24 presented the crack severity recognition system based on hybrid FS method. The feature is pre-selected by ReliefF and fisher score to reduce original feature dimensionality, and FS is carried out based on SVM model.…”

Historical-crack18-19: A dataset of annotated images for non-invasive surface crack detection in historical buildings

“…doi: https://doi.org/10.1145/3297662.3365800 [1] . E. Elhariri, N. El-Bendary, S. A. Taie, ``Using Hybrid Filter-Wrapper Feature Selection with Multi-Objective Improved-Salp Optimization for Crack Severity Recognition,'' in IEEE Access, 8 (2020), 84290-84315, doi: 10.1109/ACCESS.2020.2991968 [2] . …”