假设有 4 个集合:
s1={1,2,3,4};s2={2,3,4};s3={2,3,4,5};s4={1,3,4,5};
s1={1,2,3,4}; s2={2,3,4}; s3={2,3,4,5}; s4={1,3,4,5};
有没有标准的度量来表示这组 4 个集合的相似度?
Is there any standard metric to present the similarity degree of this group of 4 sets?
感谢您对Jaccard方法的建议.然而，这似乎是成对的.如何计算整组集合的相似度?
Thank you for the suggestion of Jaccard method. However, it seems pairwise. How can I compute the similarity degree of the whole group of sets?
推荐答案成对计算，您可以计算 Jaccard距离 两组.它只是两个集合之间的距离，如果它们是一个空间中的布尔向量，其中 {1, 2, 3...} 都是单位向量.
Pairwise, you can compute the Jaccard distance of two sets. It's simply the distance between two sets, if they were vectors of booleans in a space where {1, 2, 3…} are all unit vectors.