def euclidean_distance(v1, v2):
    distance = np.sqrt(np.power((v1 - v2), 2).sum())
    return (1 / (1 + distance))
def euclidean_distance(v1, v2):
    distance = np.sqrt(np.power((v1 - v2), 2).sum())
    return (1 / (1 + distance))