According to the relevant data from Chinese Statistical Yearbook, the overall agricultural structure and the internal structure of agriculture in Yimeng Mountainous area are analyzed. The status quo of the agricultura...According to the relevant data from Chinese Statistical Yearbook, the overall agricultural structure and the internal structure of agriculture in Yimeng Mountainous area are analyzed. The status quo of the agricultural and the internal structure of agriculture in Yimeng Mountainous area are analyzed through the method of comprehensive appraisal of the improved factors. The safety coefficient of the comprehensive appraisal is from 2.626 696 to 4.987 546,which is exclude in the safety extent, so it needs adjusting. At the same time, the internal relations of the internal structure of agriculture in Yimeng Mountainous area are studied by using the relativity analysis. The overall agricultural structure of Yimeng Mountainous area is in negative correlation to planting structure and forestry structure, and in positive correlation to livestock breeding industry; the plating structure is in negative correlation to livestock breeding structure and in positive correlation to forestry structure and the forestry structure is in negative correlation to livestock breeding structure.展开更多
以《中国高考评价体系》为蓝本,根据新高考数学试题的特点,构建新高考数学试题难度指标模型。针对现有区间值直觉模糊最优最劣方法(interval value intuitionistic fuzzy best worst method,IVIF-BWM)的不足,提出了改进的IVIF-BWM。该...以《中国高考评价体系》为蓝本,根据新高考数学试题的特点,构建新高考数学试题难度指标模型。针对现有区间值直觉模糊最优最劣方法(interval value intuitionistic fuzzy best worst method,IVIF-BWM)的不足,提出了改进的IVIF-BWM。该方法建立了基于乘法一致的区间值直觉模糊偏好关系(interval value intuitionistic fuzzy preference relation,IVIFPR)的目标规划模型求解准则的最优区间值直觉模糊(interval value intuitionistic fuzzy,IVIF)权重,并推导出IVIF环境下的一致性指标(consistency index,CI)和一致性比率(consistency ratio,CR)来验证结果的可靠性,将改进的IVIF-BWM用于计算难度指标和难度水平的权重,建立新高考试题综合难度模型。最后利用该模型评价2022年新高考数学试卷,验证所构建的新高考数学试题综合难度模型的有效性。展开更多
文摘According to the relevant data from Chinese Statistical Yearbook, the overall agricultural structure and the internal structure of agriculture in Yimeng Mountainous area are analyzed. The status quo of the agricultural and the internal structure of agriculture in Yimeng Mountainous area are analyzed through the method of comprehensive appraisal of the improved factors. The safety coefficient of the comprehensive appraisal is from 2.626 696 to 4.987 546,which is exclude in the safety extent, so it needs adjusting. At the same time, the internal relations of the internal structure of agriculture in Yimeng Mountainous area are studied by using the relativity analysis. The overall agricultural structure of Yimeng Mountainous area is in negative correlation to planting structure and forestry structure, and in positive correlation to livestock breeding industry; the plating structure is in negative correlation to livestock breeding structure and in positive correlation to forestry structure and the forestry structure is in negative correlation to livestock breeding structure.
文摘以《中国高考评价体系》为蓝本,根据新高考数学试题的特点,构建新高考数学试题难度指标模型。针对现有区间值直觉模糊最优最劣方法(interval value intuitionistic fuzzy best worst method,IVIF-BWM)的不足,提出了改进的IVIF-BWM。该方法建立了基于乘法一致的区间值直觉模糊偏好关系(interval value intuitionistic fuzzy preference relation,IVIFPR)的目标规划模型求解准则的最优区间值直觉模糊(interval value intuitionistic fuzzy,IVIF)权重,并推导出IVIF环境下的一致性指标(consistency index,CI)和一致性比率(consistency ratio,CR)来验证结果的可靠性,将改进的IVIF-BWM用于计算难度指标和难度水平的权重,建立新高考试题综合难度模型。最后利用该模型评价2022年新高考数学试卷,验证所构建的新高考数学试题综合难度模型的有效性。
