Article(id=1235576339101708987, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1235576335565902637, articleNumber=null, orderNo=null, doi=10.16790/j.cnki.1009-9239.im.2021.06.017, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1595865600000, receivedDateStr=2020-07-28, revisedDate=1600272000000, revisedDateStr=2020-09-17, acceptedDate=null, acceptedDateStr=null, onlineDate=1772513955139, onlineDateStr=2026-03-03, pubDate=1624118400000, pubDateStr=2021-06-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1772513955139, onlineIssueDateStr=2026-03-03, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1772513955139, creator=13701087609, updateTime=1772513955139, updator=13701087609, issue=Issue{id=1235576335565902637, tenantId=1146029695717560320, journalId=1149653034449285133, year='2021', volume='54', issue='6', pageStart='1', pageEnd='124', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1772513954297, creator=13701087609, updateTime=1773989561930, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1241765482630546068, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1235576335565902637, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1241765482634740373, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1235576335565902637, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=107, endPage=115, ext={EN=ArticleExt(id=1235576339445641924, articleId=1235576339101708987, tenantId=1146029695717560320, journalId=1149653034449285133, language=EN, title=Research on Ageing Diagnosis Technology for Oil-paper Insulation Based on Probabilistic Neural Network, columnId=1190369198472794288, journalTitle=Insulating Materials, columnName=Insulation Technology, runingTitle=null, highlight=null, articleAbstract=
An oil-paper sample was conducted accelerate thermal ageing treatment, and its ageing process was divided into five ageing stages according to the variation of polymerization degree. Partial discharge tests were conducted on the air gap discharge model, and the PRPD patterns of the oil-paper sample were collected at different ageing stages. The feature quantities were extracted by using statistical operator, the dimension of the original feature data was reduced by factor analysis method, and the clustering characteristics of the feature data before and after dimension reduction were compared. A probabilistic neural network model (PNN) was established to identify the ageing stages of oil-paper insulation, and a back propagation (BP) neural network model and a support vector machine (SVM) model were built as comparison. The three models were trained by the same data, and their recognition results were compared. The results show that ageing will cause pores in the pressboard, which promotes the occurrence of partial discharge. Compared with other models, the FAM-PNN model has obvious advantages in recognition accuracy and operation efficiency. The ageing state of transformer oil-paper insulation can be evaluated accurately and efficiently using the FAM-PNN model.
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对油纸试样进行加速热老化处理,根据聚合度变化将其老化过程划分为5个老化阶段;基于气隙放电模型进行局部放电试验,采集不同老化阶段油纸试样的PRPD图谱;利用统计算子提取特征量,采用因子分析法(FAM)对原始特征数据降维,比较降维前后特征数据的聚类特性;建立概率神经网络(PNN)模型识别油纸绝缘的老化阶段,作为对照,搭建反向传播(BP)神经网络模型以及支持向量机(SVM)模型,使用相同的数据对其进行训练,比较三者的识别结果。结果表明:老化会导致纸板内部产生孔隙,从而促进局部放电的发生;与其他模型相比,FAM-PNN模型在识别准确率和运算效率上具备明显优势,使用FAM-PNN模型可以准确高效地对变压器油纸绝缘的老化状态进行评估。
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孙长海(1967-),男(汉族),辽宁大连人,教授级高级工程师,研究方向为高电压与绝缘技术。
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a大连理工大学,电气工程学院,辽宁 大连 116024)]), AuthorCompany(id=1235576345367999418, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1235576339101708987, xref=b, ext=[AuthorCompanyExt(id=1235576345372193724, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1235576339101708987, companyId=1235576345367999418, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
bSchool of Control Science and Engineering, Dalian University of Technology, Dalian 116024, China), AuthorCompanyExt(id=1235576345380582333, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1235576339101708987, companyId=1235576345367999418, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
b大连理工大学,控制科学与工程学院,辽宁 大连 116024)])], figs=[ArticleFig(id=1235576349801377905, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1235576339101708987, language=EN, label=Fig.1, caption=
Change curve of polymerization degree for the oil-paper during ageing, figureFileSmall=ES6k0Omuvgp+KlPBLgQ8ow==, figureFileBig=vi0C4pK126rSXqvvxTiFyw==, tableContent=null), ArticleFig(id=1235576349927207034, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1235576339101708987, language=CN, label=图1, caption=
老化过程中油纸的聚合度变化曲线, figureFileSmall=ES6k0Omuvgp+KlPBLgQ8ow==, figureFileBig=vi0C4pK126rSXqvvxTiFyw==, tableContent=null), ArticleFig(id=1235576350124339333, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1235576339101708987, language=EN, label=Fig.2, caption=
Artificial air gap model, figureFileSmall=PxaFTa0l+h5qiFh4N6OYOQ==, figureFileBig=MC8xes9clMzJ5kw/ieKiPg==, tableContent=null), ArticleFig(id=1235576350204031115, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1235576339101708987, language=CN, label=图2, caption=
人工气隙模型, figureFileSmall=PxaFTa0l+h5qiFh4N6OYOQ==, figureFileBig=MC8xes9clMzJ5kw/ieKiPg==, tableContent=null), ArticleFig(id=1235576350292111503, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1235576339101708987, language=EN, label=Fig.3, caption=
Schematic diagram of partial discharge test system, figureFileSmall=6AJlFPkqtAHCZlGMp5lXEw==, figureFileBig=yK/ppy7jQgkKoWvn5bFpDQ==, tableContent=null), ArticleFig(id=1235576350401163413, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1235576339101708987, language=CN, label=图3, caption=
局部放电试验系统结构示意图, figureFileSmall=6AJlFPkqtAHCZlGMp5lXEw==, figureFileBig=yK/ppy7jQgkKoWvn5bFpDQ==, tableContent=null), ArticleFig(id=1235576350510215323, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1235576339101708987, language=EN, label=Fig.4, caption=
Hq(φ) spectrum of oil-paper insulation air gap discharge, figureFileSmall=sbtNQmT/2xJfVoL5WNldRg==, figureFileBig=dsVseAwqc5J+We9bXpUWgw==, tableContent=null), ArticleFig(id=1235576350610878626, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1235576339101708987, language=CN, label=图4, caption=
油纸绝缘气隙放电Hq(φ)图谱, figureFileSmall=sbtNQmT/2xJfVoL5WNldRg==, figureFileBig=dsVseAwqc5J+We9bXpUWgw==, tableContent=null), ArticleFig(id=1235576350698959015, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1235576339101708987, language=EN, label=Fig.5, caption=
Hn(φ) spectrum of oil-paper insulation air gap discharge, figureFileSmall=AhR8DZJiu9A2gKh0ekoynA==, figureFileBig=t4wuDEc9tQKqaxzmEKnaIg==, tableContent=null), ArticleFig(id=1235576352179548332, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1235576339101708987, language=CN, label=图5, caption=
油纸绝缘气隙放电Hn(φ)图谱, figureFileSmall=AhR8DZJiu9A2gKh0ekoynA==, figureFileBig=t4wuDEc9tQKqaxzmEKnaIg==, tableContent=null), ArticleFig(id=1235576352255045810, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1235576339101708987, language=EN, label=Fig.6, caption=
Variation of average discharge capacity and discharge times with test voltage under different ageing stages, figureFileSmall=xiOhztIG6Y1u5jhMhZ2Xdw==, figureFileBig=/3Z6u0SOs498uDj31u2VJA==, tableContent=null), ArticleFig(id=1235576352355709111, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1235576339101708987, language=CN, label=图6, caption=
不同老化阶段下平均放电量和放电次数随试验电压的变化, figureFileSmall=xiOhztIG6Y1u5jhMhZ2Xdw==, figureFileBig=/3Z6u0SOs498uDj31u2VJA==, tableContent=null), ArticleFig(id=1235576352456372413, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1235576339101708987, language=EN, label=Fig.7, caption=
Flow chart of factor analysis algorithm, figureFileSmall=j0PMbTLVeg9bjw+7AqMtNw==, figureFileBig=+tAiBjk3LxtBoEdNSF/kVw==, tableContent=null), ArticleFig(id=1235576352569618630, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1235576339101708987, language=CN, label=图7, caption=
因子分析算法流程图, figureFileSmall=j0PMbTLVeg9bjw+7AqMtNw==, figureFileBig=+tAiBjk3LxtBoEdNSF/kVw==, tableContent=null), ArticleFig(id=1235576352674476234, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1235576339101708987, language=EN, label=Fig.8, caption=
The effect of clustering distribution before dimensionality reduction, figureFileSmall=41suC1gqjbtPonr90Wj9/w==, figureFileBig=JW6lYk5UMh5c69eykaDHJQ==, tableContent=null), ArticleFig(id=1235576352787722446, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1235576339101708987, language=CN, label=图8, caption=
降维前聚类分布效果图, figureFileSmall=41suC1gqjbtPonr90Wj9/w==, figureFileBig=JW6lYk5UMh5c69eykaDHJQ==, tableContent=null), ArticleFig(id=1235576352884191443, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1235576339101708987, language=EN, label=Fig.9, caption=
The effect of clustering distribution after dimensionality reduction, figureFileSmall=aqIv28x6Jv3oAEEEiVhpCQ==, figureFileBig=/39Wg4gJANuG4YnDnizoqg==, tableContent=null), ArticleFig(id=1235576352976466137, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1235576339101708987, language=CN, label=图9, caption=
降维后聚类分布效果图, figureFileSmall=aqIv28x6Jv3oAEEEiVhpCQ==, figureFileBig=/39Wg4gJANuG4YnDnizoqg==, tableContent=null), ArticleFig(id=1235576353068740823, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1235576339101708987, language=EN, label=Fig.10, caption=
Basic structure diagram of probabilistic neural network, figureFileSmall=cRrMYzNOKBEStVwgnN+VcQ==, figureFileBig=Fyec4WLo7UXbkoAjWTlqeQ==, tableContent=null), ArticleFig(id=1235576353152626905, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1235576339101708987, language=CN, label=图10, caption=
概率神经网络基本结构图, figureFileSmall=cRrMYzNOKBEStVwgnN+VcQ==, figureFileBig=Fyec4WLo7UXbkoAjWTlqeQ==, tableContent=null), ArticleFig(id=1235576353244901599, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1235576339101708987, language=EN, label=Fig.11, caption=
Recognition results of PNN model training sample and test sample, figureFileSmall=RqnIZbb1Nnkqo+vVeXylDA==, figureFileBig=RwJ6Pjo2KvS0sbiXskstUg==, tableContent=null), ArticleFig(id=1235576353324593380, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1235576339101708987, language=CN, label=图11, caption=
PNN模型训练样本和测试样本识别结果, figureFileSmall=RqnIZbb1Nnkqo+vVeXylDA==, figureFileBig=RwJ6Pjo2KvS0sbiXskstUg==, tableContent=null), ArticleFig(id=1235576353412673768, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1235576339101708987, language=EN, label=Tab.1, caption=
PRPD spectrum characteristic parameter statistics table, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | | Hqmax(φ) | | Hqn(φ) | | Hn(φ) | | Hn(q) |
|---|
| Sk | | | | | | | | | | | |
| Ku | | | | | | | | | | | |
| Peaks | | | | | | | | | | | |
| Asy | | Asy1 | | Asy2 | | Asy3 | | — |
| Cc | | | | | | | | — |
), ArticleFig(id=1235576353525919984, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1235576339101708987, language=CN, label=表1, caption=
PRPD图谱特征参量统计表
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | | Hqmax(φ) | | Hqn(φ) | | Hn(φ) | | Hn(q) |
|---|
| Sk | | | | | | | | | | | |
| Ku | | | | | | | | | | | |
| Peaks | | | | | | | | | | | |
| Asy | | Asy1 | | Asy2 | | Asy3 | | — |
| Cc | | | | | | | | — |
), ArticleFig(id=1235576353626583283, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1235576339101708987, language=EN, label=null, caption=
Tab.2Definition of skewness () variable, figureFileSmall=null, figureFileBig=null, tableContent=
| | Hqmax(φ) | | Hqn(φ) | | Hn(φ) | | Hn(q) |
|---|
| 特征量 | | | | | | | | | | | |
| 原始变量 | | X1 | X2 | | X3 | X4 | | X5 | X6 | | X7 |
), ArticleFig(id=1235576353710469365, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1235576339101708987, language=CN, label=表2, caption=
偏斜度变量定义
, figureFileSmall=null, figureFileBig=null, tableContent=
| | Hqmax(φ) | | Hqn(φ) | | Hn(φ) | | Hn(q) |
|---|
| 特征量 | | | | | | | | | | | |
| 原始变量 | | X1 | X2 | | X3 | X4 | | X5 | X6 | | X7 |
), ArticleFig(id=1235576353802744060, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1235576339101708987, language=EN, label=Tab.3, caption=
Feature root and variance contribution rate, figureFileSmall=null, figureFileBig=null, tableContent=
| 编号 | 特征根 | 方差贡献率/% | 累计方差贡献率/% |
|---|
| F1 | 5.029 | 70.201 | 70.201 |
| F2 | 1.998 | 18.823 | 86.702 |
| F3 | 1.032 | 10.239 | 92.669 |
| F4 | 0.281 | 3.654 | 96.078 |
| F5 | 0.138 | 1.269 | 98.145 |
| F6 | 0.031 | 0.431 | 99.318 |
| F7 | 0.021 | 0.220 | 100.000 |
), ArticleFig(id=1235576353878241533, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1235576339101708987, language=CN, label=表3, caption=
特征根及方差贡献率
, figureFileSmall=null, figureFileBig=null, tableContent=
| 编号 | 特征根 | 方差贡献率/% | 累计方差贡献率/% |
|---|
| F1 | 5.029 | 70.201 | 70.201 |
| F2 | 1.998 | 18.823 | 86.702 |
| F3 | 1.032 | 10.239 | 92.669 |
| F4 | 0.281 | 3.654 | 96.078 |
| F5 | 0.138 | 1.269 | 98.145 |
| F6 | 0.031 | 0.431 | 99.318 |
| F7 | 0.021 | 0.220 | 100.000 |
), ArticleFig(id=1235576354004070655, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1235576339101708987, language=EN, label=Tab.4, caption=
Comparison of factor loads before and after factor rotation, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量 | 旋转前因子载荷 | 旋转后因子载荷 |
|---|
| F1 | F2 | F3 | F1 | F2 | F3 |
|---|
| X1 | 0.813 | 0.645 | -0.224 | 0.978 | 0.159 | 0.131 |
| X2 | 0.603 | 0.738 | -0.501 | 0.109 | 0.954 | 0.084 |
| X3 | 0.706 | 0.497 | -0.466 | 0.964 | 0.098 | 0.127 |
| X4 | 0.686 | -0.254 | 0.410 | 0.023 | 0.904 | 0.073 |
| X5 | 0.756 | -0.346 | 0.352 | 0.960 | 0.176 | 0.109 |
| X6 | 0.862 | -0.358 | 0.429 | 0.072 | 0.932 | 0.145 |
| X7 | 0.775 | -0.357 | 0.547 | 0.146 | 0.056 | 0.976 |
| 特征根 | 5.029 | 1.998 | 1.032 | — | — | — |
| 累计贡献率/% | 70.201 | 86.702 | 92.669 | — | — | — |
), ArticleFig(id=1235576354104733958, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1235576339101708987, language=CN, label=表4, caption=
因子旋转前后因子载荷对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量 | 旋转前因子载荷 | 旋转后因子载荷 |
|---|
| F1 | F2 | F3 | F1 | F2 | F3 |
|---|
| X1 | 0.813 | 0.645 | -0.224 | 0.978 | 0.159 | 0.131 |
| X2 | 0.603 | 0.738 | -0.501 | 0.109 | 0.954 | 0.084 |
| X3 | 0.706 | 0.497 | -0.466 | 0.964 | 0.098 | 0.127 |
| X4 | 0.686 | -0.254 | 0.410 | 0.023 | 0.904 | 0.073 |
| X5 | 0.756 | -0.346 | 0.352 | 0.960 | 0.176 | 0.109 |
| X6 | 0.862 | -0.358 | 0.429 | 0.072 | 0.932 | 0.145 |
| X7 | 0.775 | -0.357 | 0.547 | 0.146 | 0.056 | 0.976 |
| 特征根 | 5.029 | 1.998 | 1.032 | — | — | — |
| 累计贡献率/% | 70.201 | 86.702 | 92.669 | — | — | — |
), ArticleFig(id=1235576354209591558, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1235576339101708987, language=EN, label=Tab.5, caption=
Feature reduction results, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 信息量/% | 公共因子及含义 |
|---|
| 92.669% | F1 | Hqmax(φ)、Hqn(φ)、Hn(φ)正半周偏斜度 |
| F2 | Hqmax(φ)、Hqn(φ)、Hn(φ)负半周偏斜度 |
| F3 | Hn(q)偏斜度 |
| 90.749% | F4 | Hqmax(φ)、Hqn(φ)、Hn(φ)正半周峭度 |
| F5 | Hqmax(φ)、Hqn(φ)、Hn(φ)负半周峭度 |
| F6 | Hn(q)峭度 |
| 88.863% | F7 | Hqmax(φ)、Hqn(φ)、Hn(φ)正半周尖峰数 |
| F8 | Hqmax(φ)、Hqn(φ)、Hn(φ)负半周尖峰数 |
| F9 | Hn(q)尖峰数 |
| 90.283% | F10 | Hqmax(φ)、Hqn(φ)、Hn(φ)不对称度 |
| 86.267% | F11 | Hqmax(φ)、Hqn(φ)、Hn(φ)互相关系数 |
), ArticleFig(id=1235576354335420682, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1235576339101708987, language=CN, label=表5, caption=
特征量降维结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 信息量/% | 公共因子及含义 |
|---|
| 92.669% | F1 | Hqmax(φ)、Hqn(φ)、Hn(φ)正半周偏斜度 |
| F2 | Hqmax(φ)、Hqn(φ)、Hn(φ)负半周偏斜度 |
| F3 | Hn(q)偏斜度 |
| 90.749% | F4 | Hqmax(φ)、Hqn(φ)、Hn(φ)正半周峭度 |
| F5 | Hqmax(φ)、Hqn(φ)、Hn(φ)负半周峭度 |
| F6 | Hn(q)峭度 |
| 88.863% | F7 | Hqmax(φ)、Hqn(φ)、Hn(φ)正半周尖峰数 |
| F8 | Hqmax(φ)、Hqn(φ)、Hn(φ)负半周尖峰数 |
| F9 | Hn(q)尖峰数 |
| 90.283% | F10 | Hqmax(φ)、Hqn(φ)、Hn(φ)不对称度 |
| 86.267% | F11 | Hqmax(φ)、Hqn(φ)、Hn(φ)互相关系数 |
), ArticleFig(id=1235576354440278287, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1235576339101708987, language=EN, label=Tab.6, caption=
Comparison of recognition accuracy of different models, figureFileSmall=null, figureFileBig=null, tableContent=
| 老化阶段 | 训练/测试样本识别准确率 |
|---|
| PNN | SVM | BPNN | PNN (原始数据) |
|---|
| A | 93%/86% | 88%/84% | 85%/76% | 67%/46% |
| B | 90%/85% | 90%/85% | 82%/73% | 64%/62% |
| C | 92%/85% | 91%/84% | 84%/73% | 85%/74% |
| D | 90%/84% | 91%/86% | 81%/75% | 73%/58% |
| E | 91%/87% | 87%/83% | 82%/75% | 72%/60% |
| 平均值 | 91.2%/85.4% | 89.4%/84.4% | 82.8%/74.4% | 72.2%/60.0% |
), ArticleFig(id=1235576354666770709, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1235576339101708987, language=CN, label=表6, caption=
不同模型识别准确率对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 老化阶段 | 训练/测试样本识别准确率 |
|---|
| PNN | SVM | BPNN | PNN (原始数据) |
|---|
| A | 93%/86% | 88%/84% | 85%/76% | 67%/46% |
| B | 90%/85% | 90%/85% | 82%/73% | 64%/62% |
| C | 92%/85% | 91%/84% | 84%/73% | 85%/74% |
| D | 90%/84% | 91%/86% | 81%/75% | 73%/58% |
| E | 91%/87% | 87%/83% | 82%/75% | 72%/60% |
| 平均值 | 91.2%/85.4% | 89.4%/84.4% | 82.8%/74.4% | 72.2%/60.0% |
), ArticleFig(id=1235576354784211225, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1235576339101708987, language=EN, label=Tab.7, caption=
Comparison of calculation time of different models, figureFileSmall=null, figureFileBig=null, tableContent=
| 算法类型 | PNN | SVM | BPNN | PNN(原始数据) |
|---|
| 计算时间/s | 2.32 | 6.32 | 2.13 | 19.23 |
), ArticleFig(id=1235576354884874524, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1235576339101708987, language=CN, label=表7, caption=
不同模型计算时间对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 算法类型 | PNN | SVM | BPNN | PNN(原始数据) |
|---|
| 计算时间/s | 2.32 | 6.32 | 2.13 | 19.23 |
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