直觉犹豫模糊集的相关系数在群推荐中的应用

摘要

在直觉犹豫模糊集描述的群推荐系统中,首先,针对直觉犹豫模糊距离公式计算相似性问题中存在的不足,提出了直觉犹豫模糊集相关系数的概念;其次,给出直觉犹豫模糊集相关系数的聚类算法,并分析采用直觉犹豫模糊集相关系数公式与距离公式计算相似性的区别;最后,利用直觉犹豫模糊集相关系数对电影进行推荐,结论表明了直觉犹豫模糊集相关系数方法的实用性和有效性.%There are some group recommendation systems which are described by the information of intuitionistic hesitant fuzzy sets (IHFS).Fristly,in view of the problems existing in the calculation of the similarity between two intuitionistic hesitant fuzzy sets by distance formula,we define the concept of correlation coefficient of the intuitionistic hesitant fuzzy set.Secondly,we apply the correlation coefficient measures to group recommendation under the intuitionistic hesitant fuzzy environment,and analyze the difference between the formulas of the correlation coefficient and the distance formulas.Finally,a practical example of movie recommendation is given to demonstrate the practicality and effectiveness of the proposed approach.