takashioya

# License:
#   I hereby state this snippet is below "threshold of originality" where applicable (public domain).
#
# Otherwise, since initially posted on Stackoverflow, use as:
#   CC-BY-SA 3.0 skyking, Glenn Maynard, Axel Huebl
#   http://stackoverflow.com/a/31047259/2719194
#   http://stackoverflow.com/a/4858123/2719194

import builtins
import types

takashioya

from itertools import permutations 
import numpy as np
import pandas as pd

def get_optimal_solution(random_seed, answers_df):
    answers = answers_df.values
    names = answers_df.index.values
    N = answers.shape[0]
    # 全パターンの順位を取得 (8!通り)
    all_orders = np.array(list(permutations(range(N))))

takashioya

import numpy as np
from itertools import combinations
from sklearn.metrics import roc_auc_score

def calc_auc_slow(label, pred):
    #激遅
    n = label.shape[0]
    all_combs = np.array(list(combinations(np.arange(n), 2)))
    label_pairs = label[all_combs]
    pred_pairs = pred[all_combs]