Article(id=1196058110214320506, tenantId=1146029695717560320, journalId=1189621681917173762, issueId=1196058106951156162, articleNumber=null, orderNo=null, doi=10.19620/j.cnki.1000-3703.20240092, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=null, receivedDateStr=null, revisedDate=1713110400000, revisedDateStr=2024-04-15, acceptedDate=null, acceptedDateStr=null, onlineDate=1763092075159, onlineDateStr=2025-11-14, pubDate=1748016000000, pubDateStr=2025-05-24, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1763092075159, onlineIssueDateStr=2025-11-14, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1763092075159, creator=13701087609, updateTime=1763092075159, updator=13701087609, issue=Issue{id=1196058106951156162, tenantId=1146029695717560320, journalId=1189621681917173762, year='2025', volume='', issue='5', pageStart='1', pageEnd='62', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1763092074382, creator=13701087609, updateTime=1763092350927, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1196059266915288024, tenantId=1146029695717560320, journalId=1189621681917173762, issueId=1196058106951156162, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1196059266915288025, tenantId=1146029695717560320, journalId=1189621681917173762, issueId=1196058106951156162, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=39, endPage=46, ext={EN=ArticleExt(id=1196058110424035710, articleId=1196058110214320506, tenantId=1146029695717560320, journalId=1189621681917173762, language=EN, title=Automatic Generation Method of Autonomous Driving Simulation Test Scenarios Based on Tree-Structured Parzen Estimator, columnId=null, journalTitle=Automobile Technology, columnName=null, runingTitle=null, highlight=null, articleAbstract=
In view of the exponential increase in the number of key scene scenarios generated in high-dimensional space, and the difficulty of traditional artificial construction or random search methods to balance coverage and efficiency, this paper proposes a search method based on single-objective Tree structure Parzen Estimator (TPE) and Multi-ObjectiveTree structure Parzen Estimator (MOTPE). A software-in-the-loop automated simulation testing framework is built by using the CARLA simulator. Taking weather elements as an example, the critical scenario generation effects of the different search algorithms are compared. The experimental results indicate that the TPE-based search method and the MOTPE-based method increase the number of key scenarios generated by 3.11 times and 2.06 times, respectively, compared to the random search method. The MOTPE method is 1.53 times better than TPE in terms of scenario quality. When combined with scenario automaed generation and testing frameworks, these methods effectively address the issue of exploding scenario numbers, allowing for the discovery of scenarios with high testing value.
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针对高维空间中生成关键场景场景数量呈指数增长,传统人工构造或随机搜索方法难以兼顾覆盖率与效率问题,提出基于单目标树结构Parzen估计器(TPE)和多目标树结构Parzen估计器(MOTPE)的搜索方法。通过CARLA模拟器搭建软件在环自动化仿真测试框架,以天气要素为例,对比不同搜索算法的关键场景生成效果。试验结果表明:基于TPE的搜索方法和基于MOTPE的方法相较于随机搜索方法生成的关键场景数量分别提高3.11倍和2.06倍,MOTPE方法的场景质量方面是TPE的1.53倍,配合场景自动化生成与测试框架,可有效解决场景数量爆炸问题,发现具有高测试价值的场景。
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1 Shanghai Polytechnic University, School of Intelligent Manufacturing and Control Engineering, Shanghai 201209), AuthorCompanyExt(id=1196558422352114049, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1196058110214320506, companyId=1196558422335336831, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1 上海第二工业大学智能制造与控制工程学院,上海 201209)]), AuthorCompany(id=1196558422410834306, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1196058110214320506, xref=2, ext=[AuthorCompanyExt(id=1196558422419222915, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1196058110214320506, companyId=1196558422410834306, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 School of Electrical Engineering and Telecommunications, University of New South Wales, Sydney 2052), AuthorCompanyExt(id=1196558422423417220, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1196058110214320506, companyId=1196558422410834306, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 新南威尔士大学电气工程与通信学院,澳大利亚 悉尼 2052)]), AuthorCompany(id=1196558422549246342, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1196058110214320506, xref=3, ext=[AuthorCompanyExt(id=1196558422557634951, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1196058110214320506, companyId=1196558422549246342, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3 College of Automotive Engineering, Jilin University, Changchun 130015), AuthorCompanyExt(id=1196558422566023560, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1196058110214320506, companyId=1196558422549246342, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3 吉林大学汽车工程学院,长春 130015)])], figs=[ArticleFig(id=1196558425741111725, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1196058110214320506, language=EN, label=null, caption=null, figureFileSmall=dFiQL+QirLVuRXCyYYyESg==, figureFileBig=lXNkpZswUjXFA7/DARIvJQ==, tableContent=null), ArticleFig(id=1196558425812414894, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1196058110214320506, language=CN, label=图1, caption=
关键场景自动化生成与测试框架, figureFileSmall=dFiQL+QirLVuRXCyYYyESg==, figureFileBig=lXNkpZswUjXFA7/DARIvJQ==, tableContent=null), ArticleFig(id=1196558425904689583, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1196058110214320506, language=EN, label=null, caption=null, figureFileSmall=ZolJwXp88lJQXLSw7eE2ng==, figureFileBig=jpAnhAG7MJErIKxRA5Sypg==, tableContent=null), ArticleFig(id=1196558425971798448, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1196058110214320506, language=CN, label=图2, caption=
图结构搜索空间, figureFileSmall=ZolJwXp88lJQXLSw7eE2ng==, figureFileBig=jpAnhAG7MJErIKxRA5Sypg==, tableContent=null), ArticleFig(id=1196558426030518705, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1196058110214320506, language=EN, label=null, caption=null, figureFileSmall=Mk0d9pK+9jiAqGA0f/Gnlg==, figureFileBig=b+zMN2OhJOvuF+j9fshiqQ==, tableContent=null), ArticleFig(id=1196558426089238962, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1196058110214320506, language=CN, label=图3, caption=
y与Y*的关系示意, figureFileSmall=Mk0d9pK+9jiAqGA0f/Gnlg==, figureFileBig=b+zMN2OhJOvuF+j9fshiqQ==, tableContent=null), ArticleFig(id=1196558426147959219, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1196058110214320506, language=EN, label=null, caption=null, figureFileSmall=1mUmihIMWBhnZNqEIOpU4A==, figureFileBig=tk6minInc2FV8YRPdGNNYA==, tableContent=null), ArticleFig(id=1196558426202485172, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1196058110214320506, language=CN, label=图4, caption=
软件在环仿真测试框架, figureFileSmall=1mUmihIMWBhnZNqEIOpU4A==, figureFileBig=tk6minInc2FV8YRPdGNNYA==, tableContent=null), ArticleFig(id=1196558426257011125, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1196058110214320506, language=EN, label=null, caption=null, figureFileSmall=GqzJ6fBfqshmoAJtMGZXkg==, figureFileBig=hDxCrGjzpSjys6/xQNFnjg==, tableContent=null), ArticleFig(id=1196558426328314294, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1196058110214320506, language=CN, label=图5, caption=
CARLA仿真场景示意, figureFileSmall=GqzJ6fBfqshmoAJtMGZXkg==, figureFileBig=hDxCrGjzpSjys6/xQNFnjg==, tableContent=null), ArticleFig(id=1196558426391228855, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1196058110214320506, language=EN, label=null, caption=null, figureFileSmall=w47hQEGreVMSmrgMGgV3/g==, figureFileBig=J9H3NB83cS32LvF6/5Faiw==, tableContent=null), ArticleFig(id=1196558426441560504, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1196058110214320506, language=CN, label=图6, caption=
小镇道路示意, figureFileSmall=w47hQEGreVMSmrgMGgV3/g==, figureFileBig=J9H3NB83cS32LvF6/5Faiw==, tableContent=null), ArticleFig(id=1196558426500280761, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1196058110214320506, language=EN, label=null, caption=null, figureFileSmall=mdzP8g/HjRNypQ4FsjBKqA==, figureFileBig=cl5GPr/Wj52BjytaPzUuYw==, tableContent=null), ArticleFig(id=1196558426571583930, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1196058110214320506, language=CN, label=图7, caption=
不同方法统计评价指标结果, figureFileSmall=mdzP8g/HjRNypQ4FsjBKqA==, figureFileBig=cl5GPr/Wj52BjytaPzUuYw==, tableContent=null), ArticleFig(id=1196558426630304187, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1196058110214320506, language=EN, label=null, caption=null, figureFileSmall=d1cxSZHDjdWGbNUeAExh7A==, figureFileBig=B0xP+c6CvvUUtYtUK289VA==, tableContent=null), ArticleFig(id=1196558426693218748, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1196058110214320506, language=CN, label=图8, caption=
不同方法搜索结果空间分布, figureFileSmall=d1cxSZHDjdWGbNUeAExh7A==, figureFileBig=B0xP+c6CvvUUtYtUK289VA==, tableContent=null), ArticleFig(id=1196558426751939005, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1196058110214320506, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
输入:初始观测值D={(x(1),y(1)),…,(x(k),y(k))},迭代次数Nt,候选场景数Nc,分位数γ,约束条件R,约束条件数量Rn,逻辑场景参数的数量T。 输出:关键场景集合。 |
for t =1,2,, Nt do Dl={(x,y) ∈D | y包含在集合D中目标函数值小于y*的集合中} Dg=D\Dl S[ ]=NULL //下一轮测试具体场景列表 for i=1, 2,, T do //对所有逻辑场景参数进行采样 C[ ]=NULL //初始化候选参数列表 for j=1, 2,, Nc do t=sample(l(xi)) //从l(xi)中采样参数值 for k=1, 2,, Rn do //检查所有约束 if 约束条件是关于逻辑场景参数i的then (p,r)=getParea(i,t) //参数t所在节点的祖先节点的采样范围 if judge(p,r,S) //判断已经采样的父节点p是否在约束范围内 C[j]=t //将其赋值给候选参数值列表 j=j+1 end for end for S[i]= l(xi)/g(xi) //将C中采集函数值最大的候选场景赋值给S[i] end for D=D∪{(S, f(S))} end for return D中关键场景集合H |
), ArticleFig(id=1196558426823242174, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1196058110214320506, language=CN, label=表1, caption=
基于TPE的搜索算法
, figureFileSmall=null, figureFileBig=null, tableContent=
输入:初始观测值D={(x(1),y(1)),…,(x(k),y(k))},迭代次数Nt,候选场景数Nc,分位数γ,约束条件R,约束条件数量Rn,逻辑场景参数的数量T。 输出:关键场景集合。 |
for t =1,2,, Nt do Dl={(x,y) ∈D | y包含在集合D中目标函数值小于y*的集合中} Dg=D\Dl S[ ]=NULL //下一轮测试具体场景列表 for i=1, 2,, T do //对所有逻辑场景参数进行采样 C[ ]=NULL //初始化候选参数列表 for j=1, 2,, Nc do t=sample(l(xi)) //从l(xi)中采样参数值 for k=1, 2,, Rn do //检查所有约束 if 约束条件是关于逻辑场景参数i的then (p,r)=getParea(i,t) //参数t所在节点的祖先节点的采样范围 if judge(p,r,S) //判断已经采样的父节点p是否在约束范围内 C[j]=t //将其赋值给候选参数值列表 j=j+1 end for end for S[i]= l(xi)/g(xi) //将C中采集函数值最大的候选场景赋值给S[i] end for D=D∪{(S, f(S))} end for return D中关键场景集合H |
), ArticleFig(id=1196558426961654207, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1196058110214320506, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
输入:观测数据集D={(x(1),y(1)),…,(x(k),y(k))},分位数γ。 输出:Dl,Dg,Dl={} //初始化集合Dl |
j=1 //从帕累托排序等级为1开始添加到集合DI中 while $ \left|D_{l}\right|+\left|D_{\text {rank }(j)}\right|<=\lfloor\gamma|D|\rfloor$ //直到将等级j的场景全部加入时,不超出Dl场景的数量 Dl=Dl∪Drank(j) //将等级j的场景全部加入 j=j+1 end while Dl=Dl∪贪婪超体积子集选择($ D_{\text {rank }(j),}\lfloor\gamma|D|\rfloor-\left|D_{l}\right|$) //使用贪婪超体积子集选择算法得到近似最优子集,并加入到Dl中 Dg=D\Dl return (Dl,Dg) |
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场景划分
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输入:观测数据集D={(x(1),y(1)),…,(x(k),y(k))},分位数γ。 输出:Dl,Dg,Dl={} //初始化集合Dl |
j=1 //从帕累托排序等级为1开始添加到集合DI中 while $ \left|D_{l}\right|+\left|D_{\text {rank }(j)}\right|<=\lfloor\gamma|D|\rfloor$ //直到将等级j的场景全部加入时,不超出Dl场景的数量 Dl=Dl∪Drank(j) //将等级j的场景全部加入 j=j+1 end while Dl=Dl∪贪婪超体积子集选择($ D_{\text {rank }(j),}\lfloor\gamma|D|\rfloor-\left|D_{l}\right|$) //使用贪婪超体积子集选择算法得到近似最优子集,并加入到Dl中 Dg=D\Dl return (Dl,Dg) |
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输入:选择集合Di,待选择数量Ns。 输出:近似最优子集。 |
Ds={} for all(x,y)∈Di do //计算所有属于集合Di的体积贡献度 Cy=IIH({y}) end for for j=1, 2,,Ns do (x′,y′)= (Cy) //选取超体积指标最大的加入近似最优子集 Di=Di\{(x′,y′)} for all(x,y)∈Di do Cy=IIH(Ds∪{(max(y1,y1′),…,max(ym,ym′))}-IIH(Ds) //更新超体积指标 end for Ds=Ds∪{(x′,y′)} end for return Ds |
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贪婪超体积子集选择
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输入:选择集合Di,待选择数量Ns。 输出:近似最优子集。 |
Ds={} for all(x,y)∈Di do //计算所有属于集合Di的体积贡献度 Cy=IIH({y}) end for for j=1, 2,,Ns do (x′,y′)= (Cy) //选取超体积指标最大的加入近似最优子集 Di=Di\{(x′,y′)} for all(x,y)∈Di do Cy=IIH(Ds∪{(max(y1,y1′),…,max(ym,ym′))}-IIH(Ds) //更新超体积指标 end for Ds=Ds∪{(x′,y′)} end for return Ds |
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| 场景要素 | 属性 | 分布范围 |
| 天气 | 云量/% | [40,100] |
| 降雨量/mm·m-3 | [40,100] |
| 积水量/% | [20,40] |
| 光照角度/(°) | [-90,90] |
| 雾浓度/% | [20,35] |
| 雾能见度/m | [0,20] |
| 交通参与者 | 交通密度/10辆∙km-1 | [1,10] |
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场景要素参数分布
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| 场景要素 | 属性 | 分布范围 |
| 天气 | 云量/% | [40,100] |
| 降雨量/mm·m-3 | [40,100] |
| 积水量/% | [20,40] |
| 光照角度/(°) | [-90,90] |
| 雾浓度/% | [20,35] |
| 雾能见度/m | [0,20] |
| 交通参与者 | 交通密度/10辆∙km-1 | [1,10] |
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| 方案 | 搜索 场景 /个 | 关键 场景 /% | 搜索 时间 /min | 相邻场景 欧式距离 之和 | 关键场景 平均时间 间隔/min |
| Random Search | 100 | 18 | 483 | 1 963.51 | 26.83 |
| BallTree-RNS | 100 | 27 | 490 | 1 713.37 | 18.15 |
| TPE | 100 | 56 | 534 | 848.17 | 9.54 |
| MOTPE | 100 | 37 | 529 | 1 294.10 | 14.30 |
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不同搜索方法结果对比
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| 方案 | 搜索 场景 /个 | 关键 场景 /% | 搜索 时间 /min | 相邻场景 欧式距离 之和 | 关键场景 平均时间 间隔/min |
| Random Search | 100 | 18 | 483 | 1 963.51 | 26.83 |
| BallTree-RNS | 100 | 27 | 490 | 1 713.37 | 18.15 |
| TPE | 100 | 56 | 534 | 848.17 | 9.54 |
| MOTPE | 100 | 37 | 529 | 1 294.10 | 14.30 |
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