Article(id=1157001744011059418, tenantId=1146029695717560320, journalId=1146120084050784272, issueId=1157001740768858346, articleNumber=null, orderNo=null, doi=10.19562/j.chinasae.qcgc.2024.07.009, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1705939200000, receivedDateStr=2024-01-23, revisedDate=1709308800000, revisedDateStr=2024-03-02, acceptedDate=null, acceptedDateStr=null, onlineDate=1753780311825, onlineDateStr=2025-07-29, pubDate=1721836800000, pubDateStr=2024-07-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1753780311825, onlineIssueDateStr=2025-07-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1753780311825, creator=13701087609, updateTime=1753780311825, updator=13701087609, issue=Issue{id=1157001740768858346, tenantId=1146029695717560320, journalId=1146120084050784272, year='2024', volume='46', issue='7', pageStart='1137', pageEnd='1334', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=0, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1753780311052, creator=13701087609, updateTime=1756792480363, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1169635694612853253, tenantId=1146029695717560320, journalId=1146120084050784272, issueId=1157001740768858346, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1169635694612853254, tenantId=1146029695717560320, journalId=1146120084050784272, issueId=1157001740768858346, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=1219, endPage=1227, ext={EN=ArticleExt(id=1157001744866697439, articleId=1157001744011059418, tenantId=1146029695717560320, journalId=1146120084050784272, language=EN, title=Trajectory Prediction Method Enhanced by Self-supervised Pretraining, columnId=null, journalTitle=Automotive Engineering, columnName=null, runingTitle=null, highlight=null, articleAbstract=
To address limitation in prediction accuracy and data utilization efficiency of supervised learning-based trajectory prediction models, a trajectory prediction model and a general self-supervised pretraining strategy are proposed. Firstly, a lightweight trajectory prediction model based on Transformer is established to extract temporal-spatial features while modeling interaction relationship. Secondly, three types of masks, namely motion information temporal mask, road information spatial mask, and interaction relationship mask, are designed for self-supervised pre-training tasks on the model to enhance the model's ability to extract general scene features. Finally, pretraining weights are used as initialization parameters for supervised learning fine-tuning in downstream tasks. Experimental results on the Argoverse2 Motion Forecasting dataset show that the model can effectively reconstruct traffic scenes in pretraining tasks. The introduction of self-supervised pretraining improves prediction accuracy and data utilization efficiency. Moreover, it exhibits universality for different prediction tasks, achieving a 3.3% and 3.7% improvement in the minFDE6 for single-agent and multi-agent trajectory prediction tasks, respectively.
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针对目前基于监督学习的轨迹预测模型数据利用效率低、精度有限的问题,提出一种轨迹预测模型及通用的自监督预训练策略。首先,基于Transformer搭建轻量化的轨迹预测模型,实现场景时序空间特征提取与交互关系建模;其次,设计运动信息时序掩码、道路信息空间掩码、交互关系掩码3类掩码重建任务对模型进行自监督预训练,以提升模型对场景通用特征的提取能力;最后,以预训练权重为初始化参数在下游任务中进行监督学习微调。在Argoverse2 Motion Forecasting数据集的实验表明,模型在预训练任务中能够很好地重建出交通场景,引入自监督预训练能够有效提升预测精度和数据利用效率,且对不同预测任务具有通用性,在单目标轨迹预测与多目标轨迹预测任务上minFDE6指标分别提升3.3%与3.7%。
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骑行者轨迹预测, figureFileSmall=NbKEfCk7uR4DR/UwdoIJXw==, figureFileBig=9+mVH+o9oF2Yk6dSc7YVcA==, tableContent=null), ArticleFig(id=1157001959099163225, tenantId=1146029695717560320, journalId=1146120084050784272, articleId=1157001744011059418, language=EN, label=null, caption=null, figureFileSmall=Bl+iRd2gye8GQh7v0eEbRQ==, figureFileBig=CsMQ92ELvPp/JgskhqN+5A==, tableContent=null), ArticleFig(id=1157001959149494876, tenantId=1146029695717560320, journalId=1146120084050784272, articleId=1157001744011059418, language=CN, label=图11, caption=
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| 模型 | minADE1 | minADE6 | minFDE1 | minFDE6 | MR1 | MR6 | 排行榜名次 |
| MultiPath++[5] | 2.14 | 0.86 | 5.34 | 1.71 | 0.66 | 0.25 | 59 |
| THOMAS[6] | 1.96 | 0.88 | 4.62 | 1.51 | 0.64 | 0.20 | 45 |
| Forecast-MAE[19] | 1.76 | 0.80 | 4.38 | 1.41 | 0.61 | 0.18 | 31 |
| GANet[7] | 1.78 | 0.73 | 4.48 | 1.35 | 0.61 | 0.17 | 36 |
| 本方法 Scratch | 1.791 | 0.732 | 4.484 | 1.453 | 0.613 | 0.186 | 37 |
| 本方法 Pretrained | 1.733 | 0.711 | 4.332 | 1.403 | 0.590 | 0.173 | 26 |
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单目标轨迹预测性能指标
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| 模型 | minADE1 | minADE6 | minFDE1 | minFDE6 | MR1 | MR6 | 排行榜名次 |
| MultiPath++[5] | 2.14 | 0.86 | 5.34 | 1.71 | 0.66 | 0.25 | 59 |
| THOMAS[6] | 1.96 | 0.88 | 4.62 | 1.51 | 0.64 | 0.20 | 45 |
| Forecast-MAE[19] | 1.76 | 0.80 | 4.38 | 1.41 | 0.61 | 0.18 | 31 |
| GANet[7] | 1.78 | 0.73 | 4.48 | 1.35 | 0.61 | 0.17 | 36 |
| 本方法 Scratch | 1.791 | 0.732 | 4.484 | 1.453 | 0.613 | 0.186 | 37 |
| 本方法 Pretrained | 1.733 | 0.711 | 4.332 | 1.403 | 0.590 | 0.173 | 26 |
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| 模型 | minADE1 | minADE6 | minFDE1 | minFDE6 | MR1 | MR6 |
| FJMP[22] | 1.52 | 0.81 | 4.00 | 1.89 | | 0.23 |
| FFINet[23] | 1.24 | 0.77 | 3.18 | 1.77 | | 0.24 |
| 本方法 Scratch | 1.401 | 0.734 | 3.668 | 1.676 | 0.334 | 0.200 |
| 本方法 Pretrained | 1.368 | 0.708 | 3.576 | 1.615 | 0.333 | 0.196 |
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多目标轨迹预测性能指标
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| 模型 | minADE1 | minADE6 | minFDE1 | minFDE6 | MR1 | MR6 |
| FJMP[22] | 1.52 | 0.81 | 4.00 | 1.89 | | 0.23 |
| FFINet[23] | 1.24 | 0.77 | 3.18 | 1.77 | | 0.24 |
| 本方法 Scratch | 1.401 | 0.734 | 3.668 | 1.676 | 0.334 | 0.200 |
| 本方法 Pretrained | 1.368 | 0.708 | 3.576 | 1.615 | 0.333 | 0.196 |
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| 时序 掩码 | 空间 掩码 | 交互 掩码 | minADE6 | minFDE6 | MR6 |
| √ | | | 0.726 | 1.396 | 0.190 |
| √ | | 0.735 | 1.402 | 0.218 |
| | √ | 0.709 | 1.367 | 0.177 |
| √ | √ | | 0.723 | 1.389 | 0.191 |
| √ | | √ | 0.707 | 1.355 | 0.179 |
| √ | √ | √ | 0.703 | 1.344 | 0.174 |
| Scratch | 0.759 | 1.418 | 0.221 |
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不同类型掩码重建任务的消融实验
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| 时序 掩码 | 空间 掩码 | 交互 掩码 | minADE6 | minFDE6 | MR6 |
| √ | | | 0.726 | 1.396 | 0.190 |
| √ | | 0.735 | 1.402 | 0.218 |
| | √ | 0.709 | 1.367 | 0.177 |
| √ | √ | | 0.723 | 1.389 | 0.191 |
| √ | | √ | 0.707 | 1.355 | 0.179 |
| √ | √ | √ | 0.703 | 1.344 | 0.174 |
| Scratch | 0.759 | 1.418 | 0.221 |
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| 抽取比例 | minADE6 | minFDE6 | MR6 |
| 0.8 | 0.711 | 1.352 | 0.175 |
| 0.7 | 0.739 | 1.388 | 0.186 |
| 0.6 | 0.753 | 1.411 | 0.214 |
| 0.5 | 0.783 | 1.496 | 0.227 |
| Scratch | 0.759 | 1.418 | 0.221 |
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数据效率实验
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| 抽取比例 | minADE6 | minFDE6 | MR6 |
| 0.8 | 0.711 | 1.352 | 0.175 |
| 0.7 | 0.739 | 1.388 | 0.186 |
| 0.6 | 0.753 | 1.411 | 0.214 |
| 0.5 | 0.783 | 1.496 | 0.227 |
| Scratch | 0.759 | 1.418 | 0.221 |
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| 模型 | 参数量/ Million | 计算量/GFlops | 推理耗时/ms |
| MultiPath++ | 21.1 | 3.62 | 16.3 |
| Forecast-MAE | 1.92 | 0.949 | 5.03 |
| 本方法 | 1.25 | 0.692 | 3.37 |
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模型参数量及推理耗时
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| 模型 | 参数量/ Million | 计算量/GFlops | 推理耗时/ms |
| MultiPath++ | 21.1 | 3.62 | 16.3 |
| Forecast-MAE | 1.92 | 0.949 | 5.03 |
| 本方法 | 1.25 | 0.692 | 3.37 |
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