Jaccard distance 075. Jaccard distance is also useful as previously cited. Jaccard index 025.
We use hamming distance if we need to deal with categorical attributes.
A nb positive bits for vector A. If you want the magnitude compute the Euclidean distance instead. Jaccard index 025. The index is known by several other names especially SorensenDice index Sorensen index and Dices coefficientOther variations include the similarity coefficient or index such as Dice similarity coefficient DSCCommon alternate spellings for Sorensen are Sorenson Soerenson and Soerenson and all three can also be seen with the sen ending.