摘要
通过构建适合的二元Copula函数模型,基于葡萄酒理化指标和专家评价关系,探索简单易行的葡萄酒定级方法。通过实例分析证明,Copula函数能够用于葡萄酒理化指标和专家评价关系的分析,尤其对尾部相关性的描述为葡萄酒质量辨别提供了新方法,为葡萄酒定级研究提出了新思路。
A simple and practicable method for wine classification has been explored through the construction of suitable binary Copula function models based on the relations between wine physical and chemical indicators and expert＇s evaluation. Case analysis proved that Copula function could be used for the analysis of the relations between wine physical and chemical indicators and expert＇s evaluation. Especially, the description of tail dependence provided a new method for the discrimination of wine quality and a new approach for the research on wine classification.
出处
《酿酒科技》
北大核心
2013年第4期57-60,共4页
Liquor-Making Science & Technology
基金
国家自然科学基金重点项目:No.81130068
中央高校专项业务经费:No.JKQ2011032
关键词
偏最小二乘
COPULA函数
综合理化指标
partial least-square
Copula function
comprehensive physical and chemical indicators
