Exact Match Rate

Problem

Return the fraction of predictions that exactly equal their references, comparing element by element. Return 0.0 for an empty prediction list. Assumes the two lists have the same length.

Test cases

case 1

in: [["a","b","c"],["a","x","c"]]

expected: 0.6666666666666666

case 2

in: [["yes"],["no"]]

expected: 0

case 3

in: [[],[]]

expected: 0

case 4

in: [["1","2"],["1","2"]]

expected: 1

Starter codePython

def exact_match_rate(preds, refs):
    # Your code here
    pass

4 test cases · run your code against them in the editor