trigram-similarity ( a b -- n )

Vocabulary

math.similarity

Inputs

a	an object
b	an object

Outputs

n

an object

Definition

USING: grouping kernel math sequences sets ;

IN: math.similarity

: trigram-similarity ( a b -- n )
    [ 3 clump ] bi@ [ intersect ] [ union ] 2bi [ length ] bi@ /
    ;