KarimLulu

from collections import Counter
import logging
import numpy as np
from scipy.stats import kendalltau
from typing import List, Any, Union


LOG_FORMAT = ("%(asctime)s - %(levelname)s - "
              "%(filename)s:%(lineno)s - %(funcName)s"
              " - %(message)s")

KarimLulu

"""Information Retrieval metrics

Useful Resources:
http://www.cs.utexas.edu/~mooney/ir-course/slides/Evaluation.ppt
http://www.nii.ac.jp/TechReports/05-014E.pdf
http://www.stanford.edu/class/cs276/handouts/EvaluationNew-handout-6-per.pdf
http://hal.archives-ouvertes.fr/docs/00/72/67/60/PDF/07-busa-fekete.pdf
Learning to Rank for Information Retrieval (Tie-Yan Liu)
"""
import numpy as np

KarimLulu

import io


class IOChain(object):
    def __init__(self, files):
        self.files = iter(files)
        try:
            self._current_file = next(self.files)
        except StopIteration:
            self._current_file = None

KarimLulu

import heapq
import unittest


def merge(*args):
    iterators = [iter(i) for i in args]
    heads = []
    for idx, iterator in enumerate(iterators):
        try:
            value = next(iterator)