Article(id=1149738629389533586, tenantId=1146029695717560320, journalId=1146031787341344770, issueId=1149738621005119786, articleNumber=1003-3033(2024)09-0087-12, orderNo=null, doi=10.16265/j.cnki.issn1003-3033.2024.09.1631, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1710345600000, receivedDateStr=2024-03-14, revisedDate=1718640000000, revisedDateStr=2024-06-18, acceptedDate=null, acceptedDateStr=null, onlineDate=1752048650356, onlineDateStr=2025-07-09, pubDate=1727452800000, pubDateStr=2024-09-28, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1752048650356, onlineIssueDateStr=2025-07-09, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1752048650356, creator=13701087609, updateTime=1752048650356, updator=13701087609, issue=Issue{id=1149738621005119786, tenantId=1146029695717560320, journalId=1146031787341344770, year='2024', volume='34', issue='9', pageStart='1', pageEnd='252', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1752048648358, creator=13701087609, updateTime=1757401551172, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1172190322751816581, tenantId=1146029695717560320, journalId=1146031787341344770, issueId=1149738621005119786, language=EN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1172190322751816582, tenantId=1146029695717560320, journalId=1146031787341344770, issueId=1149738621005119786, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=87, endPage=98, ext={EN=ArticleExt(id=1149738630127731106, articleId=1149738629389533586, tenantId=1146029695717560320, journalId=1146031787341344770, language=EN, title=Obstacle detection on mining roads based on multi-scale feature fusion and attention mechanism, columnId=1149733269173878863, journalTitle=China Safety Science Journal, columnName=Safety engineering technology, runingTitle=null, highlight=null, articleAbstract=
In order to solve the problem of travelling obstacle detection in the context of complex open pit mines,a mining road obstacle detection algorithm based on improved cross-scale feature fusion is proposed. Firstly,to address the problem of unbalanced small target sample categories in the original mine dataset,a data enhancement method based on geometric transformation and weighted Poisson fusion is used to expand the number of samples.Secondly,a cross-stage connectivity network that is more suitable for obstacle detection is proposed in the feature extraction stage to increase the detection scale and improve the algorithm's learning ability of the small target features,and then a 3D parameterless attention (SimAM) and de-weighted Bi-directional feature fusion pyramid network (Bi-FPN) are proposed in the feature fusion stage to improve the multi-scale detection performance by enlarging the predicted feature map and feature receptive field. Finally,to address the problems of sample imbalance and imprecise obstacle bounding box localisation in the training,the quality focal loss function (QFL) and the scalable Intersection and combination ratio loss function (SIoU),which combines the classification score with the quality prediction of the position to improve the localisation accuracy for dense occlusion targets. The results show that the improved method can effectively identify unstructured road obstacles in open pit mining area under complex background,and in practical application,the detection accuracy reaches 91.88% and the detection speed reaches 68.7 f/s,which has a better performance of small-target and multi-scale detection compared with the mainstream detection methods,and it can satisfy the requirements of obstacle safety detection in the travelling of unmanned mine cards in open pit mining area.
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为解决复杂露天矿区背景下的行车障碍检测问题,提出一种基于改进跨尺度特征融合的矿区道路障碍检测算法。首先,针对原始矿山数据集中小目标样本类别不平衡的问题,采用一种基于几何变换和加权泊松融合的数据增强方法扩大样本数量;其次,在特征提取阶段提出更适用于障碍检测的跨阶段连接网络,以增大检测尺度,提高算法对小目标特征的学习能力;然后,在特征融合阶段提出基于3D无参注意力(SimAM)和去权重的双向特征融合金字塔网络(Bi-FPN),通过扩大预测特征图和特征感受野,提升多尺度检测性能;最后,针对训练中样本不均衡和障碍物边界框定位不精准问题,引入质量焦点损失函数(QFL)和可扩展的交并比损失函数(SIoU),将分类得分与位置的质量预测结合,提高对密集遮挡目标的定位精度。结果表明:改进方法能有效识别复杂背景下露天矿区非结构化道路障碍物,在实际应用中,检测精度达到91.88%,检测速度达到68.7 帧/s,相较于主流检测方法有着更好的小目标和多尺度检测性能,可满足露天矿区无人矿卡行进中的障碍安全检测要求。
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李 刚 (1979—),男,吉林德惠人,博士,教授,主要从事矿山压力及巷道围岩控制和智慧矿山等方面的研究。E-mail:ligang@lntu.edu.cn。
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李 刚 (1979—),男,吉林德惠人,博士,教授,主要从事矿山压力及巷道围岩控制和智慧矿山等方面的研究。E-mail:ligang@lntu.edu.cn。
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Open pit obstacles and their characteristics, figureFileSmall=pHWbs2RH7UulGU1U/LW1jA==, figureFileBig=kCqAS8Qk3XSxHb1eJUuNOA==, tableContent=null), ArticleFig(id=1167865411203769133, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149738629389533586, language=CN, label=图1, caption=
负障碍检测模型特征信息, figureFileSmall=pHWbs2RH7UulGU1U/LW1jA==, figureFileBig=kCqAS8Qk3XSxHb1eJUuNOA==, tableContent=null), ArticleFig(id=1167865411317015342, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149738629389533586, language=EN, label=Fig.2, caption=
Bidirectional feature fusion for mining obstacle detection modeling, figureFileSmall=+ohuaVo3+9WxTtigGHoQ5A==, figureFileBig=xr0C+ahOwPh7yYpgvW632g==, tableContent=null), ArticleFig(id=1167865411379929903, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149738629389533586, language=CN, label=图2, caption=
双向特征融合的矿区障碍检测模型 注:快速空间金字塔池(Spatial Pyramid Pooling Fast,SPPF);卷积批归一化激活(Conv Batch Normalization SiLU,CBS); 3D无参注意力(3D Parameterless Attention,SimAM);跨阶段连接层(Cross Stage Partial Layer,CSPLayer);单阶段无头检测结构(Single Stage Headless,SSH)。
, figureFileSmall=+ohuaVo3+9WxTtigGHoQ5A==, figureFileBig=xr0C+ahOwPh7yYpgvW632g==, tableContent=null), ArticleFig(id=1167865411476398896, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149738629389533586, language=EN, label=Fig.3, caption=
Spatial pyramid pooling and spatial pyramid pooling fast, figureFileSmall=ZWLJFWAw4bcmcfWnN8jp3w==, figureFileBig=+2Ac3WII6iL2DS/iMsT1yw==, tableContent=null), ArticleFig(id=1167865411535119153, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149738629389533586, language=CN, label=图3, caption=
SPP和SPPF, figureFileSmall=ZWLJFWAw4bcmcfWnN8jp3w==, figureFileBig=+2Ac3WII6iL2DS/iMsT1yw==, tableContent=null), ArticleFig(id=1167865411614810930, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149738629389533586, language=EN, label=Fig.4, caption=
SimAM-based attention and de-weighting bidirectional feature fusion module, figureFileSmall=wBOkPaSJkyIkWa+2Qmm1tQ==, figureFileBig=nBhQtdX5O5YFusSLVVEUIg==, tableContent=null), ArticleFig(id=1167865411681919795, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149738629389533586, language=CN, label=图4, caption=
基于SimAM注意力与去权双向特征融合模块, figureFileSmall=wBOkPaSJkyIkWa+2Qmm1tQ==, figureFileBig=nBhQtdX5O5YFusSLVVEUIg==, tableContent=null), ArticleFig(id=1167865411770000180, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149738629389533586, language=EN, label=Fig.5, caption=
SimAM attention mechanism structure diagram, figureFileSmall=cCZ0VZtHQ2gZThUomhMiFA==, figureFileBig=00TUhFBKNsB/2/plrJbHOg==, tableContent=null), ArticleFig(id=1167865411832914741, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149738629389533586, language=CN, label=图5, caption=
SimAM 注意力机制结构, figureFileSmall=cCZ0VZtHQ2gZThUomhMiFA==, figureFileBig=00TUhFBKNsB/2/plrJbHOg==, tableContent=null), ArticleFig(id=1167865411895829302, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149738629389533586, language=EN, label=Fig.6, caption=
Angular loss in loss function, figureFileSmall=FYvFzT99KXAgubFJVI48Tw==, figureFileBig=mUiZiaKdCvZRACMZUk/gMw==, tableContent=null), ArticleFig(id=1167865411958743863, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149738629389533586, language=CN, label=图6, caption=
损失函数中的角度损失, figureFileSmall=FYvFzT99KXAgubFJVI48Tw==, figureFileBig=mUiZiaKdCvZRACMZUk/gMw==, tableContent=null), ArticleFig(id=1167865412021658424, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149738629389533586, language=EN, label=Fig.7, caption=
Data enhanced images, figureFileSmall=ZYXtAosI2IO8NGcEtSglxA==, figureFileBig=9kGewrDFw7XxFY7CQZaQLQ==, tableContent=null), ArticleFig(id=1167865412172653369, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149738629389533586, language=CN, label=图7, caption=
数据增强图像, figureFileSmall=ZYXtAosI2IO8NGcEtSglxA==, figureFileBig=9kGewrDFw7XxFY7CQZaQLQ==, tableContent=null), ArticleFig(id=1167865412239762234, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149738629389533586, language=EN, label=Fig.8, caption=
Detection results of road obstacles in mining area, figureFileSmall=eSTBYR2h0gh9q30SQfVAdQ==, figureFileBig=KWnSvMGDA27t35rmdKByhQ==, tableContent=null), ArticleFig(id=1167865412306871099, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149738629389533586, language=CN, label=图8, caption=
矿区道路障碍物检结果, figureFileSmall=eSTBYR2h0gh9q30SQfVAdQ==, figureFileBig=KWnSvMGDA27t35rmdKByhQ==, tableContent=null), ArticleFig(id=1167865412390757180, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149738629389533586, language=EN, label=Fig.9, caption=
Training results of different backbone networks, figureFileSmall=LlyJLxV+LulqhiMMsZiymQ==, figureFileBig=MzAFOQjSMMj1kMVZdvRT8Q==, tableContent=null), ArticleFig(id=1167865412512391997, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149738629389533586, language=CN, label=图9, caption=
不同主干网络训练结果, figureFileSmall=LlyJLxV+LulqhiMMsZiymQ==, figureFileBig=MzAFOQjSMMj1kMVZdvRT8Q==, tableContent=null), ArticleFig(id=1167865412579500862, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149738629389533586, language=EN, label=Fig.10, caption=
Characterization of different attention mechanisms based on GradCAM, figureFileSmall=Y1Nqg3q+OhHcxu5q78BrtQ==, figureFileBig=j0scEuYVs87Euc1mQ7D/5g==, tableContent=null), ArticleFig(id=1167865412638221119, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149738629389533586, language=CN, label=图10, caption=
基于GradCAM的不同注意力机制特征, figureFileSmall=Y1Nqg3q+OhHcxu5q78BrtQ==, figureFileBig=j0scEuYVs87Euc1mQ7D/5g==, tableContent=null), ArticleFig(id=1167865412709524288, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149738629389533586, language=EN, label=Table 1, caption=
Sample distribution before and after data enhancement
, figureFileSmall=null, figureFileBig=null, tableContent=
| 类别 | 样本数量/个 |
| 卡车 | 挖机 | 推土机 | 行人 | 汽车 | 坑洞 | 总图片数 |
训练集数 据增强前 | 7 739 | 2 786 | 779 | 387 | 997 | 331 | 4 909 |
训练集数 据增强后 | 38 695 | 13 930 | 3 895 | 1 935 | 4 985 | 1 655 | 24 545 |
训练集数 据均衡后 | 9 240 | 4 779 | 4 887 | 8 605 | 7 385 | 3 906 | 24 204 |
), ArticleFig(id=1167865412759855937, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149738629389533586, language=CN, label=表1, caption=
数据增强前后样本分布
, figureFileSmall=null, figureFileBig=null, tableContent=
| 类别 | 样本数量/个 |
| 卡车 | 挖机 | 推土机 | 行人 | 汽车 | 坑洞 | 总图片数 |
训练集数 据增强前 | 7 739 | 2 786 | 779 | 387 | 997 | 331 | 4 909 |
训练集数 据增强后 | 38 695 | 13 930 | 3 895 | 1 935 | 4 985 | 1 655 | 24 545 |
训练集数 据均衡后 | 9 240 | 4 779 | 4 887 | 8 605 | 7 385 | 3 906 | 24 204 |
), ArticleFig(id=1167865412818576194, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149738629389533586, language=EN, label=Table 2, caption=
Configuration of experimental parameters
, figureFileSmall=null, figureFileBig=null, tableContent=
| 训练数据 | 预训练数据 | 文中数据 |
| 图像输入尺寸 | 640×640×3 | 640×640×3 |
| 冻结训练batchsize | — | 16 |
| 冻结训练Epoch | — | 20 |
| 冻结训练学习率 | — | 0.001 25 |
| 解冻训练batchsize | 16 | 16 |
| 解冻训练Epoch | 50 | 280 |
| 解冻训练学习率 | 0.005 | 0.01 |
| 动量参数 | 0.937 | 0.937 |
| 优化方法 | SGD | SGD |
| NMS阈值 | 0.65 | 0.65 |
), ArticleFig(id=1167865412873102147, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149738629389533586, language=CN, label=表2, caption=
试验各项参数配置
, figureFileSmall=null, figureFileBig=null, tableContent=
| 训练数据 | 预训练数据 | 文中数据 |
| 图像输入尺寸 | 640×640×3 | 640×640×3 |
| 冻结训练batchsize | — | 16 |
| 冻结训练Epoch | — | 20 |
| 冻结训练学习率 | — | 0.001 25 |
| 解冻训练batchsize | 16 | 16 |
| 解冻训练Epoch | 50 | 280 |
| 解冻训练学习率 | 0.005 | 0.01 |
| 动量参数 | 0.937 | 0.937 |
| 优化方法 | SGD | SGD |
| NMS阈值 | 0.65 | 0.65 |
), ArticleFig(id=1167865412944405316, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149738629389533586, language=EN, label=Table 3, caption=
Comparison of different network models
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| 模型 | 输入尺寸 | 精确率/% | 速度/(帧·s-1) | 参数量/MB | 计算量/GB | 坑洞精度 |
| SSD | 300×300 | 61.37 | 176.3 | 24.41 | 30.68 | 41.74 |
| Faster-RCNN | 800×800 | 80.36 | 48.0 | 41.37 | 134.09 | 61.57 |
| RetinaNet | 600×600 | 84.50 | 38.1 | 36.43 | 82.45 | 65.54 |
| EfficientDet-d3 | 896×896 | 78.72 | 42.5 | 18.44 | 108.20 | 58.70 |
| RepVGG-A2 | 512×512 | 83.99 | 52.4 | 41.12 | 57.66 | 67.39 |
| YOLOX-m | 640×640 | 82.04 | 95.6 | 25.28 | 36.76 | 61.68 |
| YOLOX-tiny | 640×640 | 77.54 | 133.0 | 5.03 | 7.58 | 56.88 |
| Our Model | 640×640 | 91.88 | 68.7 | 17.80 | 20.77 | 76.51 |
), ArticleFig(id=1167865412998931269, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149738629389533586, language=CN, label=表3, caption=
不同网络模型对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 模型 | 输入尺寸 | 精确率/% | 速度/(帧·s-1) | 参数量/MB | 计算量/GB | 坑洞精度 |
| SSD | 300×300 | 61.37 | 176.3 | 24.41 | 30.68 | 41.74 |
| Faster-RCNN | 800×800 | 80.36 | 48.0 | 41.37 | 134.09 | 61.57 |
| RetinaNet | 600×600 | 84.50 | 38.1 | 36.43 | 82.45 | 65.54 |
| EfficientDet-d3 | 896×896 | 78.72 | 42.5 | 18.44 | 108.20 | 58.70 |
| RepVGG-A2 | 512×512 | 83.99 | 52.4 | 41.12 | 57.66 | 67.39 |
| YOLOX-m | 640×640 | 82.04 | 95.6 | 25.28 | 36.76 | 61.68 |
| YOLOX-tiny | 640×640 | 77.54 | 133.0 | 5.03 | 7.58 | 56.88 |
| Our Model | 640×640 | 91.88 | 68.7 | 17.80 | 20.77 | 76.51 |
), ArticleFig(id=1167865413070234438, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149738629389533586, language=EN, label=Table 4, caption=
Impact of different backbone networks on model performance
, figureFileSmall=null, figureFileBig=null, tableContent=
| 主干网络 | VOC精 度/% | 矿山精 度/% | 参数量/ MB | 坑洞精 度/% |
| Base | 88.71 | 87.82 | 7.06 | 72.69 |
| ResNet50 | 91.47 | 88.61 | 25.60 | 73.01 |
| RepVGG A0 | 74.33 | 77.70 | 7.03 | 56.81 |
| CSPDarknnet+ | 88.90 | 88.49 | 7.79 | 73.30 |
), ArticleFig(id=1167865413124760391, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149738629389533586, language=CN, label=表4, caption=
不同主干网络对模型性能影响
, figureFileSmall=null, figureFileBig=null, tableContent=
| 主干网络 | VOC精 度/% | 矿山精 度/% | 参数量/ MB | 坑洞精 度/% |
| Base | 88.71 | 87.82 | 7.06 | 72.69 |
| ResNet50 | 91.47 | 88.61 | 25.60 | 73.01 |
| RepVGG A0 | 74.33 | 77.70 | 7.03 | 56.81 |
| CSPDarknnet+ | 88.90 | 88.49 | 7.79 | 73.30 |
), ArticleFig(id=1167865413183480648, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149738629389533586, language=EN, label=Table 5, caption=
Impact of different attention mechanisms on model performance
, figureFileSmall=null, figureFileBig=null, tableContent=
注意力 模块 | VOC精 度/% | 矿山精 度/% | 坑洞精 度/% | 参数量/ MB | 计算量/ MB |
| Baseline | 89.30 | 88.89 | 73.65 | +0 | +0 |
| SENet | 90.95 | 89.39 | 74.80 | +0.021 | 3.072 |
| CBAM | 90.78 | 88.54 | 72.67 | +0.003 | 6.144 |
| CA | 90.87 | 88.98 | 73.56 | +0.012 | 7.168 |
| ECA | 90.97 | 89.40 | 75.05 | +0 | 2.048 |
| SimAM | 90.89 | 89.40 | 74.92 | +0 | +0 |
), ArticleFig(id=1167865413242200905, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149738629389533586, language=CN, label=表5, caption=
不同注意力机制对模型性能影响
, figureFileSmall=null, figureFileBig=null, tableContent=
注意力 模块 | VOC精 度/% | 矿山精 度/% | 坑洞精 度/% | 参数量/ MB | 计算量/ MB |
| Baseline | 89.30 | 88.89 | 73.65 | +0 | +0 |
| SENet | 90.95 | 89.39 | 74.80 | +0.021 | 3.072 |
| CBAM | 90.78 | 88.54 | 72.67 | +0.003 | 6.144 |
| CA | 90.87 | 88.98 | 73.56 | +0.012 | 7.168 |
| ECA | 90.97 | 89.40 | 75.05 | +0 | 2.048 |
| SimAM | 90.89 | 89.40 | 74.92 | +0 | +0 |
), ArticleFig(id=1167865413300921162, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149738629389533586, language=EN, label=Table 6, caption=
Ablation experiment
, figureFileSmall=null, figureFileBig=null, tableContent=
| 数据扩增 | 数据均衡 | 多尺度 | Bi-FPN | SimAM | QFL | SIoU | VOC数据精度 | 矿山数据精度 | 坑洞精度 |
| — | — | — | — | — | — | — | 88.71 | 73.67 | 34.24 |
| √ | — | — | — | — | — | — | 88.71 | 83.69 | 65.52 |
| — | √ | — | — | — | — | — | 88.71 | 87.82 | 72.69 |
| — | √ | √ | — | — | — | — | 88.90 | 88.49 | 73.30 |
| — | √ | √ | √ | — | — | — | 89.30 | 88.89 | 73.65 |
| — | √ | √ | √ | √ | — | — | 90.89 | 89.40 | 74.98 |
| — | √ | √ | √ | √ | √ | — | 92.13 | 90.56 | 75.66 |
| — | √ | √ | √ | √ | √ | √ | 93.21 | 91.88 | 77.12 |
), ArticleFig(id=1167865413384807243, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149738629389533586, language=CN, label=表6, caption=
消融试验
, figureFileSmall=null, figureFileBig=null, tableContent=
| 数据扩增 | 数据均衡 | 多尺度 | Bi-FPN | SimAM | QFL | SIoU | VOC数据精度 | 矿山数据精度 | 坑洞精度 |
| — | — | — | — | — | — | — | 88.71 | 73.67 | 34.24 |
| √ | — | — | — | — | — | — | 88.71 | 83.69 | 65.52 |
| — | √ | — | — | — | — | — | 88.71 | 87.82 | 72.69 |
| — | √ | √ | — | — | — | — | 88.90 | 88.49 | 73.30 |
| — | √ | √ | √ | — | — | — | 89.30 | 88.89 | 73.65 |
| — | √ | √ | √ | √ | — | — | 90.89 | 89.40 | 74.98 |
| — | √ | √ | √ | √ | √ | — | 92.13 | 90.56 | 75.66 |
| — | √ | √ | √ | √ | √ | √ | 93.21 | 91.88 | 77.12 |
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