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- # coding:utf-8
- import os
- import pickle
- import collections
- import argparse
- import numpy as np
- import pandas as pd
- TRAIN_LINE_COUNT = 45840617
- TEST_LINE_COUNT = 6042135
-
-
- class DataStatsDict():
- def __init__(self):
- self.field_size = 39 # value_1-13; cat_1-26;
- self.val_cols = ["val_{}".format(i + 1) for i in range(13)]
- self.cat_cols = ["cat_{}".format(i + 1) for i in range(26)]
- #
- self.val_min_dict = {col: 0 for col in self.val_cols}
- self.val_max_dict = {col: 0 for col in self.val_cols}
- self.cat_count_dict = {col: collections.defaultdict(int) for col in self.cat_cols}
- #
- self.oov_prefix = "OOV_"
- self.cat2id_dict = {}
- self.cat2id_dict.update({col: i for i, col in enumerate(self.val_cols)})
- self.cat2id_dict.update({self.oov_prefix + col: i + len(self.val_cols) for i, col in enumerate(self.cat_cols)})
- # { "val_1": , ..., "val_13": , "OOV_cat_1": , ..., "OOV_cat_26": }
-
- def stats_vals(self, val_list):
- assert len(val_list) == len(self.val_cols)
- def map_max_min(i, val):
- key = self.val_cols[i]
- if val != "":
- if float(val) > self.val_max_dict[key]:
- self.val_max_dict[key] = float(val)
- if float(val) < self.val_min_dict[key]:
- self.val_min_dict[key] = float(val)
- for i, val in enumerate(val_list):
- map_max_min(i, val)
-
- def stats_cats(self, cat_list):
- assert len(cat_list) == len(self.cat_cols)
- def map_cat_count(i, cat):
- key = self.cat_cols[i]
- self.cat_count_dict[key][cat] += 1
- for i, cat in enumerate(cat_list):
- map_cat_count(i, cat)
- #
- def save_dict(self, output_path, prefix=""):
- with open(os.path.join(output_path, "{}val_max_dict.pkl".format(prefix)), "wb") as file_wrt:
- pickle.dump(self.val_max_dict, file_wrt)
- with open(os.path.join(output_path, "{}val_min_dict.pkl".format(prefix)), "wb") as file_wrt:
- pickle.dump(self.val_min_dict, file_wrt)
- with open(os.path.join(output_path, "{}cat_count_dict.pkl".format(prefix)), "wb") as file_wrt:
- pickle.dump(self.cat_count_dict, file_wrt)
-
- def load_dict(self, dict_path, prefix=""):
- with open(os.path.join(dict_path, "{}val_max_dict.pkl".format(prefix)), "rb") as file_wrt:
- self.val_max_dict = pickle.load(file_wrt)
- with open(os.path.join(dict_path, "{}val_min_dict.pkl".format(prefix)), "rb") as file_wrt:
- self.val_min_dict = pickle.load(file_wrt)
- with open(os.path.join(dict_path, "{}cat_count_dict.pkl".format(prefix)), "rb") as file_wrt:
- self.cat_count_dict = pickle.load(file_wrt)
- print("val_max_dict.items()[:50]: {}".format(list(self.val_max_dict.items())))
- print("val_min_dict.items()[:50]: {}".format(list(self.val_min_dict.items())))
-
- def get_cat2id(self, threshold=100):
- for key, cat_count_d in self.cat_count_dict.items():
- new_cat_count_d = dict(filter(lambda x: x[1] > threshold, cat_count_d.items()))
- for cat_str, _ in new_cat_count_d.items():
- self.cat2id_dict[key + "_" + cat_str] = len(self.cat2id_dict)
- # print("before_all_count: {}".format( before_all_count )) # before_all_count: 33762577
- # print("after_all_count: {}".format( after_all_count )) # after_all_count: 184926
- print("cat2id_dict.size: {}".format(len(self.cat2id_dict)))
- print("cat2id_dict.items()[:50]: {}".format(list(self.cat2id_dict.items())[:50]))
-
- def map_cat2id(self, values, cats):
- def minmax_scale_value(i, val):
- # min_v = float(self.val_min_dict[ "val_{}".format(i+1) ])
- max_v = float(self.val_max_dict["val_{}".format(i + 1)])
- # return ( float(val) - min_v ) * 1.0 / (max_v - min_v)
- return float(val) * 1.0 / max_v
- id_list = []
- weight_list = []
- for i, val in enumerate(values):
- if val == "":
- id_list.append(i)
- weight_list.append(0)
- else:
- key = "val_{}".format(i + 1)
- id_list.append(self.cat2id_dict[key])
- weight_list.append(minmax_scale_value(i, float(val)))
-
- for i, cat_str in enumerate(cats):
- key = "cat_{}".format(i + 1) + "_" + cat_str
- if key in self.cat2id_dict:
- id_list.append(self.cat2id_dict[key])
- else:
- id_list.append(self.cat2id_dict[self.oov_prefix + "cat_{}".format(i + 1)])
- weight_list.append(1.0)
- return id_list, weight_list
-
- def mkdir_path(file_path):
- if not os.path.exists(file_path):
- os.makedirs(file_path)
-
- def statsdata(data_source_path, output_path, data_stats1):
- with open(data_source_path, encoding="utf-8") as file_in:
- errorline_list = []
- count = 0
- for line in file_in:
- count += 1
- line = line.strip("\n")
- items = line.split("\t")
- if len(items) != 40:
- errorline_list.append(count)
- print("line: {}".format(line))
- continue
- if count % 1000000 == 0:
- print("Have handle {}w lines.".format(count // 10000))
- values = items[1:14]
- cats = items[14:]
- assert len(values) == 13, "values.size: {}".format(len(values))
- assert len(cats) == 26, "cats.size: {}".format(len(cats))
- data_stats1.stats_vals(values)
- data_stats1.stats_cats(cats)
- data_stats1.save_dict(output_path)
-
- def add_write(file_path, wrt_str):
- with open(file_path, 'a', encoding="utf-8") as file_out:
- file_out.write(wrt_str + "\n")
-
- def random_split_trans2h5(input_file_path, output_path, data_stats2, part_rows=2000000, test_size=0.1, seed=2020):
- test_size = int(TRAIN_LINE_COUNT * test_size)
-
- all_indices = [i for i in range(TRAIN_LINE_COUNT)]
- np.random.seed(seed)
- np.random.shuffle(all_indices)
- print("all_indices.size: {}".format(len(all_indices)))
- test_indices_set = set(all_indices[: test_size])
- print("test_indices_set.size: {}".format(len(test_indices_set)))
- print("----------" * 10 + "\n" * 2)
-
- train_feature_file_name = os.path.join(output_path, "train_input_part_{}.h5")
- train_label_file_name = os.path.join(output_path, "train_output_part_{}.h5")
- test_feature_file_name = os.path.join(output_path, "test_input_part_{}.h5")
- test_label_file_name = os.path.join(output_path, "test_output_part_{}.h5")
-
- train_feature_list = []
- train_label_list = []
- test_feature_list = []
- test_label_list = []
- with open(input_file_path, encoding="utf-8") as file_in:
- count = 0
- train_part_number = 0
- test_part_number = 0
- for i, line in enumerate(file_in):
- count += 1
- if count % 1000000 == 0:
- print("Have handle {}w lines.".format(count // 10000))
- line = line.strip("\n")
- items = line.split("\t")
- if len(items) != 40:
- continue
- label = float(items[0])
- values = items[1:14]
- cats = items[14:]
- assert len(values) == 13, "values.size: {}".format(len(values))
- assert len(cats) == 26, "cats.size: {}".format(len(cats))
- ids, wts = data_stats2.map_cat2id(values, cats)
- if i not in test_indices_set:
- train_feature_list.append(ids + wts)
- train_label_list.append(label)
- else:
- test_feature_list.append(ids + wts)
- test_label_list.append(label)
- if train_label_list and (len(train_label_list) % part_rows == 0):
- pd.DataFrame(np.asarray(train_feature_list)).to_hdf(train_feature_file_name.format(train_part_number),
- key="fixed")
- pd.DataFrame(np.asarray(train_label_list)).to_hdf(train_label_file_name.format(train_part_number),
- key="fixed")
- train_feature_list = []
- train_label_list = []
- train_part_number += 1
- if test_label_list and (len(test_label_list) % part_rows == 0):
- pd.DataFrame(np.asarray(test_feature_list)).to_hdf(test_feature_file_name.format(test_part_number),
- key="fixed")
- pd.DataFrame(np.asarray(test_label_list)).to_hdf(test_label_file_name.format(test_part_number),
- key="fixed")
- test_feature_list = []
- test_label_list = []
- test_part_number += 1
-
- if train_label_list:
- pd.DataFrame(np.asarray(train_feature_list)).to_hdf(train_feature_file_name.format(train_part_number),
- key="fixed")
- pd.DataFrame(np.asarray(train_label_list)).to_hdf(train_label_file_name.format(train_part_number),
- key="fixed")
-
- if test_label_list:
- pd.DataFrame(np.asarray(test_feature_list)).to_hdf(test_feature_file_name.format(test_part_number),
- key="fixed")
- pd.DataFrame(np.asarray(test_label_list)).to_hdf(test_label_file_name.format(test_part_number), key="fixed")
-
- if __name__ == "__main__":
- parser = argparse.ArgumentParser(description='Get and Process datasets')
- parser.add_argument('--base_path', default="/home/wushuquan/tmp/", help='The path to save dataset')
- parser.add_argument('--output_path', default="/home/wushuquan/tmp/h5dataset/",
- help='The path to save h5 dataset')
-
- args, _ = parser.parse_known_args()
- base_path = args.base_path
- data_path = base_path + ""
- # mkdir_path(data_path)
- # if not os.path.exists(base_path + "dac.tar.gz"):
- # os.system(
- # "wget -P {} -c https://s3-eu-west-1.amazonaws.com/kaggle-display-advertising-challenge-dataset/dac.tar.gz --no-check-certificate".format(
- # base_path))
- os.system("tar -zxvf {}dac.tar.gz".format(data_path))
- print("********tar end***********")
- data_stats = DataStatsDict()
-
- # step 1, stats the vocab and normalize value
- data_file_path = "./train.txt"
- stats_output_path = base_path + "stats_dict/"
- mkdir_path(stats_output_path)
- statsdata(data_file_path, stats_output_path, data_stats)
- print("----------" * 10)
- data_stats.load_dict(dict_path=stats_output_path, prefix="")
- data_stats.get_cat2id(threshold=100)
- # step 2, transform data trans2h5; version 2: np.random.shuffle
- in_file_path = "./train.txt"
- mkdir_path(args.output_path)
- random_split_trans2h5(in_file_path, args.output_path, data_stats, part_rows=2000000, test_size=0.1, seed=2020)
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