Implicit Feedback Confidence

Problem

Compute implicit-feedback confidence values: 1 + alpha * interaction.

Return the list; empty input returns [].

Hint

Confidence grows linearly with the strength of implicit interaction.

case 1

in: [[0,1,5],0.5]

expected: [1,1.5,3.5]

case 2

in: [[2],1]

expected: [3]

case 3

in: [[],0.5]

expected: []

Starter codePython

def implicit_confidence(interactions, alpha):
    # Your code here
    pass

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