A Novel Efficient Feature Dimensionality Reduction Method and Its Application in Engineering

In the engineering field, excessive data dimensions affect the efficiency of machine learning and analysis of the relationships between data or features. To render feature dimensionality reduction more effective and faster, this paper proposes a new feature dimensionality reduction approach combinin...

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Main Authors: Zhun Cheng, Zhixiong Lu
Format: Article
Language:English
Published: Wiley 2018-01-01
Series:Complexity
Online Access:http://dx.doi.org/10.1155/2018/2879640
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author Zhun Cheng
Zhixiong Lu
author_facet Zhun Cheng
Zhixiong Lu
author_sort Zhun Cheng
collection DOAJ
description In the engineering field, excessive data dimensions affect the efficiency of machine learning and analysis of the relationships between data or features. To render feature dimensionality reduction more effective and faster, this paper proposes a new feature dimensionality reduction approach combining a sampling survey method with a heuristic intelligent optimization algorithm. Drawing on feature selection, this method builds a feature-scoring system and a reduced-dimension length-scoring system based on the sampling survey method. According to feature scores and reduced-dimension lengths, the method selects a number of features and reduced-dimension lengths that are ranked in the front with high scores. This feature dimensionality reduction method allows for in-depth optimal selection of features and reduced-dimension lengths with high scores using an improved heuristic intelligent optimization algorithm. To verify the effectiveness of the dimensionality reduction method, this paper applies it to road roughness time-domain estimation based on vehicle dynamic response and gene-selection research in bioengineering. Results in the first case show that the proposed method can improve the accuracy of road roughness time-domain estimation to above 0.99 and reduce measured data of the vehicle dynamic response, reducing the experimental workload significantly. Results in the second case show that the method can select a set of genes quickly and effectively with high disease recognition accuracy.
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spelling doaj-art-fd3f26d39f6d43e6ada7f0a99d0d302f2025-08-20T03:25:26ZengWileyComplexity1076-27871099-05262018-01-01201810.1155/2018/28796402879640A Novel Efficient Feature Dimensionality Reduction Method and Its Application in EngineeringZhun Cheng0Zhixiong Lu1College of Engineering, Nanjing Agricultural University, Nanjing 210031, ChinaCollege of Engineering, Nanjing Agricultural University, Nanjing 210031, ChinaIn the engineering field, excessive data dimensions affect the efficiency of machine learning and analysis of the relationships between data or features. To render feature dimensionality reduction more effective and faster, this paper proposes a new feature dimensionality reduction approach combining a sampling survey method with a heuristic intelligent optimization algorithm. Drawing on feature selection, this method builds a feature-scoring system and a reduced-dimension length-scoring system based on the sampling survey method. According to feature scores and reduced-dimension lengths, the method selects a number of features and reduced-dimension lengths that are ranked in the front with high scores. This feature dimensionality reduction method allows for in-depth optimal selection of features and reduced-dimension lengths with high scores using an improved heuristic intelligent optimization algorithm. To verify the effectiveness of the dimensionality reduction method, this paper applies it to road roughness time-domain estimation based on vehicle dynamic response and gene-selection research in bioengineering. Results in the first case show that the proposed method can improve the accuracy of road roughness time-domain estimation to above 0.99 and reduce measured data of the vehicle dynamic response, reducing the experimental workload significantly. Results in the second case show that the method can select a set of genes quickly and effectively with high disease recognition accuracy.http://dx.doi.org/10.1155/2018/2879640
spellingShingle Zhun Cheng
Zhixiong Lu
A Novel Efficient Feature Dimensionality Reduction Method and Its Application in Engineering
Complexity
title A Novel Efficient Feature Dimensionality Reduction Method and Its Application in Engineering
title_full A Novel Efficient Feature Dimensionality Reduction Method and Its Application in Engineering
title_fullStr A Novel Efficient Feature Dimensionality Reduction Method and Its Application in Engineering
title_full_unstemmed A Novel Efficient Feature Dimensionality Reduction Method and Its Application in Engineering
title_short A Novel Efficient Feature Dimensionality Reduction Method and Its Application in Engineering
title_sort novel efficient feature dimensionality reduction method and its application in engineering
url http://dx.doi.org/10.1155/2018/2879640
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