The rank-sum test is a nonparametric method used in variety evaluation. However, the hypothesis testing of the method hasn＇t been established for multi-trait comprehensive ranking. In this paper, under null hypothesi...The rank-sum test is a nonparametric method used in variety evaluation. However, the hypothesis testing of the method hasn＇t been established for multi-trait comprehensive ranking. In this paper, under null hypothesis H0： the variety＇s ranking on each trait is random, the theoretical distribution of sum of ranks （SR） was firstly derived and further used to obtain the critical values for multi-trait comprehensive evaluation in rank-sum testing. A new C＋＋ class and its basic arithmetic were defined to deal with the miscount caused by the precision limitation of built-in data type in common statistical software under large number of varieties and traits. Finally, an application of the theoretical results was demonstrated using five starch viscosity traits of 12 glutinous maize varieties. The proposed method is so simple and convenient that it can be easily used to rank different varieties by multiple traits.展开更多
目的:综合评价安徽医科大学附属亳州医院抗肿瘤药物临床合理应用管理指标,为后续抗肿瘤药物管理提供参考。方法:以季度为节点,提取该院2022−2024年(2022Q1表示2022年第一季度,以此类推)抗肿瘤药物的14项管理指标,包括门诊、住院患者限...目的:综合评价安徽医科大学附属亳州医院抗肿瘤药物临床合理应用管理指标,为后续抗肿瘤药物管理提供参考。方法:以季度为节点,提取该院2022−2024年(2022Q1表示2022年第一季度,以此类推)抗肿瘤药物的14项管理指标,包括门诊、住院患者限制使用级抗肿瘤药物使用率等。结合指标难度赋权法、加权逼近理想解排序(technique for order preference by similarity to ideal solution,Topsis)法和秩和比(Rank-sum ratio,RSR)法,对12个季度的管理指标进行评价并分档。结果:2022Q2、Q4和2023Q4的管理指标均处于“上”级别(C_(i)≥0.6435),2024Q1−Q4及其他4个季度的管理指标维持在“中”级别(0.3751≤Ci≤0.6244),处于“差”级别的季度仅有2022Q1(C_(i)=0.1506)。结论:基于指标难度赋权-Topsis-RSR法建立的抗肿瘤药物管理指标评价方法,赋权合理、评价结果具体,对后续工作具有一定的指导意义。展开更多
为解决影响装备健康状态参数的权重分配及各参数评估值的融合问题,根据装备特点和其自身延寿需求,提出基于区间直觉模糊集(interval-valued intuitionistic fuzzy,IVIF)和融合逼近理想解排序法(technique for order preference by simil...为解决影响装备健康状态参数的权重分配及各参数评估值的融合问题,根据装备特点和其自身延寿需求,提出基于区间直觉模糊集(interval-valued intuitionistic fuzzy,IVIF)和融合逼近理想解排序法(technique for order preference by similarity to an ideal solution,TOPSIS)与秩和比法(ranksum ratio,RSR)的装备健康状态评估方法。引入IVIF确定决策专家自身权重,根据其评估犹豫度及相似度综合确定指标权重,获取加权规范化矩阵;建立TOPSIS-RSR的评估框架实现对装备的健康状态评估及决策;利用仿真案例对多个同型号装备健康状态进行评估排序分级,对比2种已知评估方法验证方法了的可行性。展开更多
为克服单一赋权法的局限性,结合山区干线公路交通特征及交通安全评价指标的选取原则,从社会因素、驾驶因素、环境因素、管理因素和道路因素五个维度出发,选取18个综合评价指标,运用序关系分析法(Order Relation Analysis Method,G1)-指...为克服单一赋权法的局限性,结合山区干线公路交通特征及交通安全评价指标的选取原则,从社会因素、驾驶因素、环境因素、管理因素和道路因素五个维度出发,选取18个综合评价指标,运用序关系分析法(Order Relation Analysis Method,G1)-指标相关性权重确定法(Criteria Importance Through Intercriteria Correlation,CRITIC)确定各评价指标的权重,并结合折中妥协多属性决策法(VlseKriterijumska Optimizacija I Kompromisno Resenje,VIKOR)对山区干线公路交通安全进行综合评价,提出了基于G1-CRITIC-VIKOR模型的山区干线公路交通安全综合评价及比选方法。以中国西部6条山区干线公路为例进行实证研究,结果表明,G1-CRITIC-VIKOR模型的评价效果与传统的秩和比(Rank-Sum Ratio,RSR)综合评价法及加权逼近理想解排序法(Technique for Order Preference by Similarity to Ideal Solution,TOPSIS)的评价结果基本一致,且评价效果明显优于后者,具有更好的辨识性,验证了该模型的可行性和科学性。展开更多
基金supported by the National Key Basic Research Program of China(2006CB101700)the Program for New Century Excellent Talents in University of Ministry of Education of China(NCET2005-05-0502)
文摘The rank-sum test is a nonparametric method used in variety evaluation. However, the hypothesis testing of the method hasn＇t been established for multi-trait comprehensive ranking. In this paper, under null hypothesis H0： the variety＇s ranking on each trait is random, the theoretical distribution of sum of ranks （SR） was firstly derived and further used to obtain the critical values for multi-trait comprehensive evaluation in rank-sum testing. A new C＋＋ class and its basic arithmetic were defined to deal with the miscount caused by the precision limitation of built-in data type in common statistical software under large number of varieties and traits. Finally, an application of the theoretical results was demonstrated using five starch viscosity traits of 12 glutinous maize varieties. The proposed method is so simple and convenient that it can be easily used to rank different varieties by multiple traits.
文摘目的:综合评价安徽医科大学附属亳州医院抗肿瘤药物临床合理应用管理指标,为后续抗肿瘤药物管理提供参考。方法:以季度为节点,提取该院2022−2024年(2022Q1表示2022年第一季度,以此类推)抗肿瘤药物的14项管理指标,包括门诊、住院患者限制使用级抗肿瘤药物使用率等。结合指标难度赋权法、加权逼近理想解排序(technique for order preference by similarity to ideal solution,Topsis)法和秩和比(Rank-sum ratio,RSR)法,对12个季度的管理指标进行评价并分档。结果:2022Q2、Q4和2023Q4的管理指标均处于“上”级别(C_(i)≥0.6435),2024Q1−Q4及其他4个季度的管理指标维持在“中”级别(0.3751≤Ci≤0.6244),处于“差”级别的季度仅有2022Q1(C_(i)=0.1506)。结论:基于指标难度赋权-Topsis-RSR法建立的抗肿瘤药物管理指标评价方法,赋权合理、评价结果具体,对后续工作具有一定的指导意义。
文摘为解决影响装备健康状态参数的权重分配及各参数评估值的融合问题,根据装备特点和其自身延寿需求,提出基于区间直觉模糊集(interval-valued intuitionistic fuzzy,IVIF)和融合逼近理想解排序法(technique for order preference by similarity to an ideal solution,TOPSIS)与秩和比法(ranksum ratio,RSR)的装备健康状态评估方法。引入IVIF确定决策专家自身权重,根据其评估犹豫度及相似度综合确定指标权重,获取加权规范化矩阵;建立TOPSIS-RSR的评估框架实现对装备的健康状态评估及决策;利用仿真案例对多个同型号装备健康状态进行评估排序分级,对比2种已知评估方法验证方法了的可行性。
文摘为克服单一赋权法的局限性,结合山区干线公路交通特征及交通安全评价指标的选取原则,从社会因素、驾驶因素、环境因素、管理因素和道路因素五个维度出发,选取18个综合评价指标,运用序关系分析法(Order Relation Analysis Method,G1)-指标相关性权重确定法(Criteria Importance Through Intercriteria Correlation,CRITIC)确定各评价指标的权重,并结合折中妥协多属性决策法(VlseKriterijumska Optimizacija I Kompromisno Resenje,VIKOR)对山区干线公路交通安全进行综合评价,提出了基于G1-CRITIC-VIKOR模型的山区干线公路交通安全综合评价及比选方法。以中国西部6条山区干线公路为例进行实证研究,结果表明,G1-CRITIC-VIKOR模型的评价效果与传统的秩和比(Rank-Sum Ratio,RSR)综合评价法及加权逼近理想解排序法(Technique for Order Preference by Similarity to Ideal Solution,TOPSIS)的评价结果基本一致,且评价效果明显优于后者,具有更好的辨识性,验证了该模型的可行性和科学性。
