葡萄酒质量的评估模型-毕业论文.doc

目 录 摘要 1 Abstract 2 前 言 3 1 问题分析 4 2 模型假设 5 3 符号说明 5 4 模型建立与求解 6 4.1 两组评酒员的评价结果可信度分析 6 4.2 酿酒葡萄的理化指标和酿酒葡萄的质量对酿酒葡萄的分级情况 8 4.3 酿酒葡萄与葡萄酒的理化指标之间的联系 11 4.4 酿酒葡萄的理化指标与葡萄的质量的影响 18 5 模型评价与改进 19 5.1 模型的评价 19 5.2 模型的改进 19 成果声明 20 致 谢 21 参考文献 22 附录 23 葡萄酒质量的评估模型 马群长 摘要: 本文通过评酒员的评价结果、酿酒葡萄的理化指标和葡萄酒的质量以及葡萄酒的理化指标之间的联系，在问题1中利用信度分析和SPSS软件以及EXCEL得到两组评酒员之间无显著差异，且第二组评酒员的评价结果更可信。在问题2中，采用相关系数和聚类分析法得到27种酿酒红葡萄可分为三级，其中样品1,2,3,4,5,7,9,10,11,12,13,14,15,16,17,18,19, 20,22,23,24，25,26,27为一级，样品6为二级，样品3,21为三级.酿酒白葡萄可分为五级，其中样品1,2,4，6，7,8,9,10,11，12,14,17,18,20,21,22,23, 26为一级，样品 13,19,16为二级，样品5,15,25,27,24为三级，样品28为四级，样品3为五级. 在问题3中，根据酿酒葡萄和葡萄酒的理化指标之间的数据，利用回归分析和残差检验，得到酿酒红葡萄的16个理化指标与红葡萄酒的指标的回归方程，得出酿酒白葡萄的13个理化指标与白葡萄酒的指标的回归方程，在问题4中，利用相关分析法分别得到红葡萄酒的质量与氨基酸、蛋白质、VC含量和酒石酸等呈正相关与苹果酸、柠檬酸、多酚氧化酶等呈负相关；同理可得到白葡萄酒的质量与氨基酸、VC含量、花色苷鲜重、酒石酸等呈正相关，而与蛋白质、柠檬酸、DPPH自由基等呈负相关，可以用葡萄和葡萄酒的理化指标来评价葡萄酒的质量. 关键词: 信度分析 相关系数 聚类分析 回归分析 Evaluation of wine quality model Ma Qunzhang Abstract: Between the indicators and the wine of the member of liquor evaluation results, the grape wine quality and physicochemical index linked, in problem 1 by reliability analysis and SPSS software and EXCEL have no significant difference between the two groups of member of liquor, evaluation and second group member of liquor results more credible. In issue 2, 27 kinds of red wine grape can be divided into three stages by correlation coefficient and cluster analysis, one sample 1,2,3,4,5,7,9,10,11,12,13,14,15,16,17,18,19, 20,22,23,24, 25,26,27 as a sample, 6 to two, the sample 3,21 is three. Wine grape can be divided into five levels, the samples of 1,2,4, 6, 7,8,9,10,11, 12,14,17,18,20,21,22,23, 26 level, two level of sample 13,19,16, sample 5,15,25,27,24 three, samples of 28 to four, 3 to five samples. In question 3, according to the physicochemical indexes of wine grape and wine data, regression analysis and residual test, and obtained the regression equation of red wine grape, 16 physicochemical index and the index of red wine, the regression equat