基于两个体比较的交互式遗传算法(Interactive Genetic Algorithm based on paired comparison,PC-IGA)允许用户在每次评估过程中比较两个个体并从中选择一个优胜者,以代替传统的用户评分方式,从而减轻用户的精神压力.但是,PC-IGA中用...基于两个体比较的交互式遗传算法(Interactive Genetic Algorithm based on paired comparison,PC-IGA)允许用户在每次评估过程中比较两个个体并从中选择一个优胜者,以代替传统的用户评分方式,从而减轻用户的精神压力.但是,PC-IGA中用户比较次数太多,加重了用户的生理疲劳.为此,本文提出一种新的用户评估方式——锦标赛选择,并给出锦标赛选择交互式遗传算法(Interactive Genetic Algorithm Based on Tournament Selection,TS-IGA)的关键技术和实现步骤.将该算法应用于服装色彩优化系统,研究了种群规模和子种群规模的选择对算法性能的影响.最后,将该算法与PC-IGA进行对比实验,结果表明本文提出的算法在选择合适的子种群规模的情况下,能有效减少用户的比较次数和算法收敛时间,从而减轻用户疲劳.展开更多
Researchers in several disciplines and fields agree that the image establishing has both perceptual and affecfive evaluations. The paper comparatively analyzes the image of landscapes in ancient water towns held by 16...Researchers in several disciplines and fields agree that the image establishing has both perceptual and affecfive evaluations. The paper comparatively analyzes the image of landscapes in ancient water towns held by 1619 tourists after the investigations of Zbouzhuang and Tongli of Jiangsu Province. Based on the elements of the image of urban landscapes, the perceptual/cognitive image of tourist landscapes in water towns is developed including path, node, landmark, important courtyard, district and edge. Particularly the important courtyard plays the great role on the perceptive image of tourists, however, the perceptual/cognitive images of the district and the edge are obviously weak. Meanwhile, the finding showed that the affective images of tourist landscapes in Zhonzhuang differ with those of Tongli by the method of paired comparison. The main reason is that the affective images are influenced by the impressive scenery spots. Furthermore, the commercialization of streets and pollution of rivers are easy to be functioned negatively.展开更多
Red X工具是分析系统和统计工程的方法,通过分析极端样件差异找到复杂问题产生的根本原因。本文以N400车型前轮罩为例,基于其焊合总成焊接后无法取出焊具的问题,通过运用问题定义树、项目定义树、测量系统验证、配对对比、工位查找等几...Red X工具是分析系统和统计工程的方法,通过分析极端样件差异找到复杂问题产生的根本原因。本文以N400车型前轮罩为例,基于其焊合总成焊接后无法取出焊具的问题,通过运用问题定义树、项目定义树、测量系统验证、配对对比、工位查找等几个Red X策略步骤的研究分析,找到了问题的根源。不仅成功解决了此问题,还为后续车型开发提供了重要的设计参考依据。展开更多
文摘基于两个体比较的交互式遗传算法(Interactive Genetic Algorithm based on paired comparison,PC-IGA)允许用户在每次评估过程中比较两个个体并从中选择一个优胜者,以代替传统的用户评分方式,从而减轻用户的精神压力.但是,PC-IGA中用户比较次数太多,加重了用户的生理疲劳.为此,本文提出一种新的用户评估方式——锦标赛选择,并给出锦标赛选择交互式遗传算法(Interactive Genetic Algorithm Based on Tournament Selection,TS-IGA)的关键技术和实现步骤.将该算法应用于服装色彩优化系统,研究了种群规模和子种群规模的选择对算法性能的影响.最后,将该算法与PC-IGA进行对比实验,结果表明本文提出的算法在选择合适的子种群规模的情况下,能有效减少用户的比较次数和算法收敛时间,从而减轻用户疲劳.
基金Under the auspices of the National Natural Science Foundation of China (No. 40371030), Research Project of Ministry of Construction (No. 20031018)
文摘Researchers in several disciplines and fields agree that the image establishing has both perceptual and affecfive evaluations. The paper comparatively analyzes the image of landscapes in ancient water towns held by 1619 tourists after the investigations of Zbouzhuang and Tongli of Jiangsu Province. Based on the elements of the image of urban landscapes, the perceptual/cognitive image of tourist landscapes in water towns is developed including path, node, landmark, important courtyard, district and edge. Particularly the important courtyard plays the great role on the perceptive image of tourists, however, the perceptual/cognitive images of the district and the edge are obviously weak. Meanwhile, the finding showed that the affective images of tourist landscapes in Zhonzhuang differ with those of Tongli by the method of paired comparison. The main reason is that the affective images are influenced by the impressive scenery spots. Furthermore, the commercialization of streets and pollution of rivers are easy to be functioned negatively.
