Article(id=1149780467467116891, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1149780466032669506, articleNumber=null, orderNo=null, doi=10.12404/j.issn.1671-1815.2403576, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1715702400000, receivedDateStr=2024-05-15, revisedDate=1736438400000, revisedDateStr=2025-01-10, acceptedDate=null, acceptedDateStr=null, onlineDate=1752058625332, onlineDateStr=2025-07-09, pubDate=1744041600000, pubDateStr=2025-04-08, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1752058625332, onlineIssueDateStr=2025-07-09, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1752058625332, creator=13701087609, updateTime=1752058625332, updator=13701087609, issue=Issue{id=1149780466032669506, tenantId=1146029695717560320, journalId=1146123166801305609, year='2025', volume='25', issue='10', pageStart='3969', pageEnd='4395', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1752058624990, creator=13701087609, updateTime=1768456644259, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1218558743898411553, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1149780466032669506, language=EN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1218558743898411554, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1149780466032669506, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=4199, endPage=4205, ext={EN=ArticleExt(id=1149780467710386525, articleId=1149780467467116891, tenantId=1146029695717560320, journalId=1146123166801305609, language=EN, title=Evolution Indicators of Heavy-Duty Railway Rail Wave Wear Damage Based on t-SNE, columnId=1156262729162810294, journalTitle=Science Technology and Engineering, columnName=Papers·Automation and Computational Technology, runingTitle=null, highlight=null, articleAbstract=
Understanding the evolution law of rail service performance is of great significance for reducing the operation and maintenance costs of heavy-duty railway rails. Due to the complex and variable operating environment of rail tracks, which makes it difficult to construct scientifically effective damage evolution indicators to reflect objective development patterns, a method based on t-SNE(t-distributed stochastic neighbor embedding) was proposed for constructing the evolution law of corrugation damage. Firstly, the time-domain, frequency-domain, statistical, and entropy features were extracted from the original rail corrugation vibration signal. The random forest algorithm was then used to rank the features by importance, and the top-ranked features were selected to construct the feature vector. Dimensionality reduction was performed using t-SNE and other methods, and it is found that t-SNE demonstrates superior performance. The final temporal damage degradation index is obtained through Euclidean distance metric and median filtering for smoothing. The results indicate that this method provides good discrimination, anti-interference capability, and practical applicability for damage stages classification.
, correspAuthors=Zhong-mei WANG, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, authorCompany=null, fund=null, authors=null, authorsList=Zhong-mei WANG, Wei DENG, Jian-hua LIU, Peng-xuan NIE, Hai-bo WU, Wen-kun WANG), CN=ArticleExt(id=1149780484881867298, articleId=1149780467467116891, tenantId=1146029695717560320, journalId=1146123166801305609, language=CN, title=基于t-SNE的重载铁路钢轨波磨伤损演化指标, columnId=1156262729783567290, journalTitle=科学技术与工程, columnName=论文·自动化技术、计算机技术, runingTitle=null, highlight=null, articleAbstract=
认识钢轨服役性能演化规律对降低重载铁路钢轨运维成本具有重要意义。针对钢轨运行环境复杂多变,难以构建科学有效的伤损演化指标以反映客观发展规律的问题,提出了基于t-分布随机近邻分布(t-distributed stochastic neighbor embedding,t-SNE)的波磨伤损演化规律构建方法。首先,对钢轨原始波磨振动信号提取时域、频域、统计学、熵的特征指标;然后,使用随机森林算法对特征进行特征重要性排名,选取排名靠前的特征构建特征矢量;接着使用t-SNE等方式降维,验证了t-SNE更具优势,使用欧氏距离度量和中值滤波法进行平滑处理得到最终的时序性伤损退化指标。结果表明本文方法对于伤损阶段的划分具有较好的区分度、抗干扰能力和工程实用性。
, correspAuthors=王忠美, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=Q9ZXDfsgzE8O3Jqn2cyMpQ==, magXml=pz3q59oDWG4+D9crKlwfcQ==, pdfUrl=null, pdf=TsNTpuH21vLZb9e+iO6/RA==, pdfFileSize=4186754, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=gptcFZYiXbXvMIGwDC89Ag==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=7lX9YOym4Kr8w8t+ee6Z5A==, mapNumber=null, authorCompany=null, fund=null, authors=
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王忠美(1984—),男,汉族,湖北荆州人,博士,讲师。研究方向:智能信息处理,智能诊断与健康监测。E-mail:ldwangzm2008@163.com。
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王忠美(1984—),男,汉族,湖北荆州人,博士,讲师。研究方向:智能信息处理,智能诊断与健康监测。E-mail:ldwangzm2008@163.com。
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Ranking of feature importance in random forest, figureFileSmall=x4j6v7gkn3HhUntyw9Mx1Q==, figureFileBig=y24+sYPSgNJDJVjMyFikyQ==, tableContent=null), ArticleFig(id=1218525112794534705, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780467467116891, language=CN, label=图1, caption=
随机森林特征重要性排名结果, figureFileSmall=x4j6v7gkn3HhUntyw9Mx1Q==, figureFileBig=y24+sYPSgNJDJVjMyFikyQ==, tableContent=null), ArticleFig(id=1218525112949723973, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780467467116891, language=EN, label=Fig.2, caption=
Visualization of the dimensionality reduction effect using KPCA, figureFileSmall=rXA5wo+DruE8+Tby6AJSOQ==, figureFileBig=dhUvbTy/cnyJmDHf3DCAig==, tableContent=null), ArticleFig(id=1218525113088136016, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780467467116891, language=CN, label=图2, caption=
KPCA的降维效果可视化, figureFileSmall=rXA5wo+DruE8+Tby6AJSOQ==, figureFileBig=dhUvbTy/cnyJmDHf3DCAig==, tableContent=null), ArticleFig(id=1218525113226548064, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780467467116891, language=EN, label=Fig.3, caption=
Visualization of the dimensionality reduction effect using ISOMAP, figureFileSmall=KWtK4n9PcvIoeJt0JqUtJw==, figureFileBig=t0ErTAC+S2Qd7bOBvPT4IA==, tableContent=null), ArticleFig(id=1218525113360765802, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780467467116891, language=CN, label=图3, caption=
ISOMAP的处理效果可视化, figureFileSmall=KWtK4n9PcvIoeJt0JqUtJw==, figureFileBig=t0ErTAC+S2Qd7bOBvPT4IA==, tableContent=null), ArticleFig(id=1218525113469817717, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780467467116891, language=EN, label=Fig.4, caption=
Visualization of the dimensionality reduction effect using t-SNE, figureFileSmall=cjG1Fe0HTHsE5Fx/7grFJw==, figureFileBig=bgNoj2gVvfjMn5ifjGCgTg==, tableContent=null), ArticleFig(id=1218525113566286716, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780467467116891, language=CN, label=图4, caption=
t-SNE的处理效果可视化, figureFileSmall=cjG1Fe0HTHsE5Fx/7grFJw==, figureFileBig=bgNoj2gVvfjMn5ifjGCgTg==, tableContent=null), ArticleFig(id=1218525113721475976, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780467467116891, language=EN, label=Fig.5, caption=
The final damage evolution metrics obtained using the method proposed in this article, figureFileSmall=mogQfm2Qmzuo58zfc1yJ5Q==, figureFileBig=99a/stzYNC4JZkGonDj94g==, tableContent=null), ArticleFig(id=1218525113947968404, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780467467116891, language=CN, label=图5, caption=
使用本文方法得到的最终伤损演化指标, figureFileSmall=mogQfm2Qmzuo58zfc1yJ5Q==, figureFileBig=99a/stzYNC4JZkGonDj94g==, tableContent=null), ArticleFig(id=1218525114094769057, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780467467116891, language=EN, label=Table 1, caption=
Theextracted Features from various domains in this article
, figureFileSmall=null, figureFileBig=null, tableContent=
| 指标分类 | 特征名称 |
| 统计学 | 最大值,最小值,均值,均方值,方差,方根幅值 |
| 时域 | 峰峰值,峭度,峭度因子,偏度,波形因子,峰值因子,脉冲因子,裕度因子,形状因子,谱峭度的均值,谱峭度的标准差,谱峭度的偏度,谱峭度的峭度 |
| 频域 | 中心频率,均方频率,均方根频率,频率方差,能量特征 |
| 熵特征 | Tsallis熵,Shannon熵,Renyi熵 |
), ArticleFig(id=1218525114325455787, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780467467116891, language=CN, label=表1, caption=
本文提取的各域特征
, figureFileSmall=null, figureFileBig=null, tableContent=
| 指标分类 | 特征名称 |
| 统计学 | 最大值,最小值,均值,均方值,方差,方根幅值 |
| 时域 | 峰峰值,峭度,峭度因子,偏度,波形因子,峰值因子,脉冲因子,裕度因子,形状因子,谱峭度的均值,谱峭度的标准差,谱峭度的偏度,谱峭度的峭度 |
| 频域 | 中心频率,均方频率,均方根频率,频率方差,能量特征 |
| 熵特征 | Tsallis熵,Shannon熵,Renyi熵 |
), ArticleFig(id=1218525114480645046, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780467467116891, language=EN, label=Table 2, caption=
Parameter settings for three dimensionality reduction technique
, figureFileSmall=null, figureFileBig=null, tableContent=
| 降维方法 | 相关参数设置 |
| t-SNE | Perp=30 |
| ISOMAP | n_neighbors=30 |
| KPCA | Kernel=Gauss |
), ArticleFig(id=1218525114606474179, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780467467116891, language=CN, label=表2, caption=
3种降维方法参数设置
, figureFileSmall=null, figureFileBig=null, tableContent=
| 降维方法 | 相关参数设置 |
| t-SNE | Perp=30 |
| ISOMAP | n_neighbors=30 |
| KPCA | Kernel=Gauss |
), ArticleFig(id=1218525114715526089, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780467467116891, language=EN, label=Table 3, caption=
Variation of indicators at each stage of damage evolution
, figureFileSmall=null, figureFileBig=null, tableContent=
| 演化阶段 | 采样区间 | 指标规律 | 指标分布区间 | 均值 | 标准差 | 平均绝对偏差 |
| 一 | [1,6] | 缓慢增长 | [0.000,0.386] | 0.167 | 0.130 | 0.103 |
| 二 | [7,23] | 平缓发展 | [0.961,1.436] | 1.167 | 0.202 | 0.189 |
| 三 | [24,49] | 平缓发展 | [7.538,7.925] | 7.709 | 0.138 | 0.132 |
| 四 | [50,98] | 迅速增长 | [8.068,17.130] | 13.374 | 2.907 | 2.633 |
), ArticleFig(id=1218525114849743829, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780467467116891, language=CN, label=表3, caption=
伤损演化各阶段的指标变化情况
, figureFileSmall=null, figureFileBig=null, tableContent=
| 演化阶段 | 采样区间 | 指标规律 | 指标分布区间 | 均值 | 标准差 | 平均绝对偏差 |
| 一 | [1,6] | 缓慢增长 | [0.000,0.386] | 0.167 | 0.130 | 0.103 |
| 二 | [7,23] | 平缓发展 | [0.961,1.436] | 1.167 | 0.202 | 0.189 |
| 三 | [24,49] | 平缓发展 | [7.538,7.925] | 7.709 | 0.138 | 0.132 |
| 四 | [50,98] | 迅速增长 | [8.068,17.130] | 13.374 | 2.907 | 2.633 |
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