Distance between a point and a distribution by measuring the distance between the point and the mean of the distribution using the coordinate system defined by the principal components.

Levenshtein distance calculates the number of operations needed to change one word to another by …

As simple as the inner product of two vectors $$ d_{cos} = \frac{\vec A}{\vert \vec A \vert} \cdot …

Jaccard index is the ratio of the size of the intersect of the set and the size of the union of the …