摘要
为了科学地评定西藏引进甘薯品种的生产价值,利用加速遗传算法的投影寻踪模型,以解决果实品质质量高低的判定问题,最大限度避免了权重矩阵取值的人为干扰。结果表明:YS-8号综合投影值最大(1.5186),最适合在西藏地区栽培。采用投影寻踪法来确定权重,减小了人为因素的干扰,分析结果更加科学、准确。
In order to assess the production values of sweet-potato introduced in Tibet scientifically, projection pursuit classification model based on RAGA was applied to the assessment on its projection direction was optimized and highdimension data were converted into low-dimension space with PPC, value of projection indexes could was obtained. The results showed that comprehensive values of projection（1. 5186）was biggest for YS-8 among these species. Based on these projection function values,subjective impact on weight matrix farthest could be avoided with PPC model. As the subjective factor was avoided, the evaluation results was scientific and precise.
出处
《北方园艺》
CAS
北大核心
2011年第18期35-36,共2页
Northern Horticulture
基金
西藏自治区科技厅地区基金资助项目
西藏农牧学院211工程师资队伍建设资助项目(SZRC-211-04)
关键词
甘薯
生产评价
投影寻踪
西藏
sweet-potato
production evaluation
projection pursuit
Tibet
