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user_cate_shop2.py
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user_cate_shop2.py
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from datetime import datetime
from datetime import timedelta
import pandas as pd
import pickle
import os
import numpy as np
from sklearn.model_selection import StratifiedKFold
import lightgbm as lgb
from dateutil.parser import parse
import warnings
from sklearn import preprocessing
warnings.filterwarnings('ignore')
# 读取用户数据(全量数据)
def get_basic_user_feat():
dump_path = './cache/basic_user_F12_5.pkl'
if os.path.exists(dump_path):
user = pd.read_pickle(dump_path)
else:
user = pd.read_pickle('./cache/origin_user.pkl')
user_info = user.copy()
age_df = pd.get_dummies(user["age"], prefix="age")
sex_df = pd.get_dummies(user["sex"], prefix="sex")
user_lv_df = pd.get_dummies(user["user_lv_cd"], prefix="user_lv_cd")
city_level_df = pd.get_dummies(user["city_level"], prefix="city_level")
province_df = pd.get_dummies(user["province"], prefix="province")
user = pd.concat([user[['user_id', 'city', 'county']], age_df, sex_df, user_lv_df, city_level_df, province_df],
axis=1)
city_count_map = user_info.city.value_counts()
province_count_map = user_info.province.value_counts()
user_info['province_count_map'] = user_info['province'].map(province_count_map).fillna(-1)
user_info['city_count_map'] = user_info['province'].map(city_count_map).fillna(-1)
now = datetime.today()
user_info['user_reg_tm'] = pd.to_datetime(user_info['user_reg_tm'])
user_info['user_duration'] = user_info['user_reg_tm'].fillna(now).apply(lambda x: (now - x).days)
_ = user_info.pop('user_reg_tm')
user_info.city_level = user_info.city_level.fillna(4.0)
user_stat = user_info[['user_id', 'province_count_map', 'city_count_map', 'user_duration']]
user = user.merge(user_stat, on='user_id', how='left')
pickle.dump(user, open(dump_path, 'wb'))
print('user finished')
return user
# 读取行为数据,与产品数据拼接(起始时间-结束时间的行为数据)
def get_actions_product(start_date, end_date):
dump_path = './cache/all_action_product_F12_5_%s_%s.pkl' % (start_date, end_date)
if os.path.exists(dump_path):
actions = pd.read_pickle(dump_path)
else:
actions = pd.read_pickle('./cache/origin_action.pkl')
product = pd.read_pickle('./cache/origin_product.pkl')
shop = pd.read_pickle('./cache/origin_shop.pkl')
actions = actions[(actions.action_time >= start_date) & (actions.action_time < end_date)]
actions = actions[actions['type'] != 5] # 训练集时间区间内无type=5, 仅测试集时间区间存在
actions = actions[actions['sku_id'].isin(product['sku_id'])] # 行为中sku_id不在product中的
actions = pd.merge(actions, product, on='sku_id', how='left')
actions = actions[actions['cate'] != 13] # cate13的数据没有购买行为
actions = pd.merge(actions, shop[['shop_id', 'vender_id']], on=['shop_id'], how='left')
print(actions.shape)
actions = actions[actions['vender_id'] != 3666] # 数据没有购买行为
print(actions.shape)
actions.to_pickle(dump_path)
return actions
# 读取行为数据,与产品数据拼接(用于生成购物车特征)
def get_actions_product_cart(start_date, end_date):
dump_path = './cache/all_action_product_cart_F12_5_%s_%s.pkl' % (start_date, end_date)
if os.path.exists(dump_path):
actions = pd.read_pickle(dump_path)
else:
actions = pd.read_pickle('./cache/origin_action.pkl')
product = pd.read_pickle('./cache/origin_product.pkl')
shop = pd.read_pickle('./cache/origin_shop.pkl')
actions['action_time'] = pd.to_datetime(actions['action_time'])
actions = actions[(actions.action_time >= start_date) & (actions.action_time < end_date)]
actions = actions[actions['sku_id'].isin(product['sku_id'])] # 行为中sku_id不在product中的
actions = pd.merge(actions, product, on='sku_id', how='left')
actions = actions[actions['cate'] != 13] # cate13的数据没有购买行为
actions = pd.merge(actions, shop[['shop_id', 'vender_id']], on=['shop_id'], how='left')
print(actions.shape)
actions = actions[actions['vender_id'] != 3666] # 数据没有购买行为
print(actions.shape)
actions.to_pickle(dump_path)
return actions
# 行为比例特征(2.01-4.08) 滑窗
def get_accumulate_user_feat_cart(start_date, end_date):
dump_path = './cache/user_feat_accumulate_cart_F12_5_%s_%s.pkl' % (start_date, end_date)
if os.path.exists(dump_path):
f11_actions = pd.read_pickle(dump_path)
else:
actions = get_actions_product_cart(start_date, end_date)
df = pd.get_dummies(actions['type'], prefix='%s-%s-action' % (start_date, end_date))
actions = pd.concat([actions[['user_id', 'cate', 'shop_id']], df], axis=1)
# 索引
f11_actions = actions[['user_id', 'cate', 'shop_id']].drop_duplicates()
actions1 = actions.drop(['cate', 'shop_id'], axis=1)
actions1 = actions1.groupby(['user_id'], as_index=False).sum().add_prefix('user_id_')
actions1['user_action_1_ratio_%s_%s' % (start_date, end_date)] = actions1['user_id_%s-%s-action_2' % (
start_date, end_date)] / actions1['user_id_%s-%s-action_1' % (start_date, end_date)]
actions1['user_action_4_ratio_%s_%s' % (start_date, end_date)] = actions1['user_id_%s-%s-action_2' % (
start_date, end_date)] / actions1['user_id_%s-%s-action_4' % (start_date, end_date)]
actions1['user_action_3_ratio_%s_%s' % (start_date, end_date)] = actions1['user_id_%s-%s-action_2' % (
start_date, end_date)] / actions1['user_id_%s-%s-action_3' % (start_date, end_date)]
actions1['user_action_5_ratio_%s_%s' % (start_date, end_date)] = actions1['user_id_%s-%s-action_2' % (
start_date, end_date)] / actions1['user_id_%s-%s-action_5' % (start_date, end_date)]
actions1.rename(columns={'user_id_user_id': 'user_id'}, inplace=True)
actions2 = actions.drop(['user_id', 'shop_id'], axis=1)
actions2 = actions2.groupby(['cate'], as_index=False).sum().add_prefix('cate_')
actions2['cate_action_1_ratio_%s_%s' % (start_date, end_date)] = actions2['cate_%s-%s-action_2' % (
start_date, end_date)] / actions2['cate_%s-%s-action_1' % (start_date, end_date)]
actions2['cate_action_4_ratio_%s_%s' % (start_date, end_date)] = actions2['cate_%s-%s-action_2' % (
start_date, end_date)] / actions2['cate_%s-%s-action_4' % (start_date, end_date)]
actions2['cate_action_3_ratio_%s_%s' % (start_date, end_date)] = actions2['cate_%s-%s-action_2' % (
start_date, end_date)] / actions2['cate_%s-%s-action_3' % (start_date, end_date)]
actions2['cate_action_5_ratio_%s_%s' % (start_date, end_date)] = actions2['cate_%s-%s-action_2' % (
start_date, end_date)] / actions2['cate_%s-%s-action_5' % (start_date, end_date)]
actions2.rename(columns={'cate_cate': 'cate'}, inplace=True)
actions3 = actions.drop(['user_id', 'cate'], axis=1)
actions3 = actions3.groupby(['shop_id'], as_index=False).sum().add_prefix('shop_id_')
actions3['shop_action_1_ratio_%s_%s' % (start_date, end_date)] = actions3['shop_id_%s-%s-action_2' % (
start_date, end_date)] / actions3['shop_id_%s-%s-action_1' % (start_date, end_date)]
actions3['shop_action_4_ratio_%s_%s' % (start_date, end_date)] = actions3['shop_id_%s-%s-action_2' % (
start_date, end_date)] / actions3['shop_id_%s-%s-action_4' % (start_date, end_date)]
actions3['shop_action_3_ratio_%s_%s' % (start_date, end_date)] = actions3['shop_id_%s-%s-action_2' % (
start_date, end_date)] / actions3['shop_id_%s-%s-action_3' % (start_date, end_date)]
actions3['shop_action_5_ratio_%s_%s' % (start_date, end_date)] = actions3['shop_id_%s-%s-action_2' % (
start_date, end_date)] / actions3['shop_id_%s-%s-action_5' % (start_date, end_date)]
actions3.rename(columns={'shop_id_shop_id': 'shop_id'}, inplace=True)
actions4 = actions
actions4 = actions4.groupby(['user_id', 'cate', 'shop_id'], as_index=False).sum().add_prefix(
'user_cate_shop_id_')
actions4['user_cate_shop_id_action_1_ratio_%s_%s' % (start_date, end_date)] = actions4[
'user_cate_shop_id_%s-%s-action_2' % (
start_date, end_date)] / \
actions4[
'user_cate_shop_id_%s-%s-action_1' % (
start_date, end_date)]
actions4['user_cate_shop_id_action_4_ratio_%s_%s' % (start_date, end_date)] = actions4[
'user_cate_shop_id_%s-%s-action_2' % (
start_date, end_date)] / \
actions4[
'user_cate_shop_id_%s-%s-action_4' % (
start_date, end_date)]
actions4['user_cate_shop_id_action_3_ratio_%s_%s' % (start_date, end_date)] = actions4[
'user_cate_shop_id_%s-%s-action_2' % (
start_date, end_date)] / \
actions4[
'user_cate_shop_id_%s-%s-action_3' % (
start_date, end_date)]
actions4['user_cate_shop_id_action_5_ratio_%s_%s' % (start_date, end_date)] = actions4[
'user_cate_shop_id_%s-%s-action_2' % (
start_date, end_date)] / \
actions4[
'user_cate_shop_id_%s-%s-action_5' % (
start_date, end_date)]
actions4.rename(columns={'user_cate_shop_id_user_id': 'user_id', 'user_cate_shop_id_cate': 'cate',
'user_cate_shop_id_shop_id': 'shop_id'}, inplace=True)
# 拼接
f11_actions = f11_actions.merge(actions1, on='user_id', how='left')
f11_actions = f11_actions.merge(actions2, on='cate', how='left')
f11_actions = f11_actions.merge(actions3, on='shop_id', how='left')
f11_actions = f11_actions.merge(actions4, on=['user_id', 'cate', 'shop_id'], how='left')
#f11_actions.to_pickle(dump_path)
print('accumulate user cart finished')
return f11_actions
# 行为比例特征(2.01-4.08) 滑窗
def get_accumulate_user_feat(start_date, end_date):
dump_path = './cache/user_feat_accumulate_F12_5_%s_%s.pkl' % (start_date, end_date)
if os.path.exists(dump_path):
f11_actions = pd.read_pickle(dump_path)
else:
actions = get_actions_product(start_date, end_date)
df = pd.get_dummies(actions['type'], prefix='%s-%s-action' % (start_date, end_date))
actions = pd.concat([actions[['user_id', 'cate', 'shop_id']], df], axis=1)
# 索引
f11_actions = actions[['user_id', 'cate', 'shop_id']].drop_duplicates()
actions1 = actions.drop(['cate', 'shop_id'], axis=1)
actions1 = actions1.groupby(['user_id'], as_index=False).sum().add_prefix('user_id_')
actions1['user_action_1_ratio_%s_%s' % (start_date, end_date)] = actions1['user_id_%s-%s-action_2' % (
start_date, end_date)] / actions1['user_id_%s-%s-action_1' % (start_date, end_date)]
actions1['user_action_4_ratio_%s_%s' % (start_date, end_date)] = actions1['user_id_%s-%s-action_2' % (
start_date, end_date)] / actions1['user_id_%s-%s-action_4' % (start_date, end_date)]
actions1['user_action_3_ratio_%s_%s' % (start_date, end_date)] = actions1['user_id_%s-%s-action_2' % (
start_date, end_date)] / actions1['user_id_%s-%s-action_3' % (start_date, end_date)]
actions1.rename(columns={'user_id_user_id': 'user_id'}, inplace=True)
actions2 = actions.drop(['user_id', 'shop_id'], axis=1)
actions2 = actions2.groupby(['cate'], as_index=False).sum().add_prefix('cate_')
actions2['cate_action_1_ratio_%s_%s' % (start_date, end_date)] = actions2['cate_%s-%s-action_2' % (
start_date, end_date)] / actions2['cate_%s-%s-action_1' % (start_date, end_date)]
actions2['cate_action_4_ratio_%s_%s' % (start_date, end_date)] = actions2['cate_%s-%s-action_2' % (
start_date, end_date)] / actions2['cate_%s-%s-action_4' % (start_date, end_date)]
actions2['cate_action_3_ratio_%s_%s' % (start_date, end_date)] = actions2['cate_%s-%s-action_2' % (
start_date, end_date)] / actions2['cate_%s-%s-action_3' % (start_date, end_date)]
actions2.rename(columns={'cate_cate': 'cate'}, inplace=True)
actions3 = actions.drop(['user_id', 'cate'], axis=1)
actions3 = actions3.groupby(['shop_id'], as_index=False).sum().add_prefix('shop_id_')
actions3['shop_action_1_ratio_%s_%s' % (start_date, end_date)] = actions3['shop_id_%s-%s-action_2' % (
start_date, end_date)] / actions3['shop_id_%s-%s-action_1' % (start_date, end_date)]
actions3['shop_action_4_ratio_%s_%s' % (start_date, end_date)] = actions3['shop_id_%s-%s-action_2' % (
start_date, end_date)] / actions3['shop_id_%s-%s-action_4' % (start_date, end_date)]
actions3['shop_action_3_ratio_%s_%s' % (start_date, end_date)] = actions3['shop_id_%s-%s-action_2' % (
start_date, end_date)] / actions3['shop_id_%s-%s-action_3' % (start_date, end_date)]
actions3.rename(columns={'shop_id_shop_id': 'shop_id'}, inplace=True)
actions4 = actions
actions4 = actions4.groupby(['user_id', 'cate', 'shop_id'], as_index=False).sum().add_prefix(
'user_cate_shop_id_')
actions4['user_cate_shop_id_action_1_ratio_%s_%s' % (start_date, end_date)] = actions4[
'user_cate_shop_id_%s-%s-action_2' % (
start_date, end_date)] / \
actions4[
'user_cate_shop_id_%s-%s-action_1' % (
start_date, end_date)]
actions4['user_cate_shop_id_action_4_ratio_%s_%s' % (start_date, end_date)] = actions4[
'user_cate_shop_id_%s-%s-action_2' % (
start_date, end_date)] / \
actions4[
'user_cate_shop_id_%s-%s-action_4' % (
start_date, end_date)]
actions4['user_cate_shop_id_action_3_ratio_%s_%s' % (start_date, end_date)] = actions4[
'user_cate_shop_id_%s-%s-action_2' % (
start_date, end_date)] / \
actions4[
'user_cate_shop_id_%s-%s-action_3' % (
start_date, end_date)]
actions4.rename(columns={'user_cate_shop_id_user_id': 'user_id', 'user_cate_shop_id_cate': 'cate',
'user_cate_shop_id_shop_id': 'shop_id'}, inplace=True)
# 拼接
f11_actions = f11_actions.merge(actions1, on='user_id', how='left')
f11_actions = f11_actions.merge(actions2, on='cate', how='left')
f11_actions = f11_actions.merge(actions3, on='shop_id', how='left')
f11_actions = f11_actions.merge(actions4, on=['user_id', 'cate', 'shop_id'], how='left')
#f11_actions.to_pickle(dump_path)
print('accumulate user finished')
return f11_actions
# 基础统计特征
def get_stat_feat(start_date, end_date):
dump_path = './cache/stat_feat_accumulate_F12_5_%s_%s.pkl' % (start_date, end_date)
if os.path.exists(dump_path):
action = pd.read_pickle(dump_path)
else:
action = get_actions_product(start_date, end_date)
action_index = action[['user_id', 'cate', 'shop_id']].drop_duplicates()
# 行为onehot
action_type = pd.get_dummies(action['type'])
action_type.columns = ['act_1', 'act_2', 'act_3', 'act_4']
action_type = action_type[['act_1', 'act_2', 'act_3', 'act_4']]
action_type['cate'] = action['cate']
action_type['user_id'] = action['user_id']
action_type['shop_id'] = action['shop_id']
# 基于user_id的统计特征
user_stat = action[['user_id']].drop_duplicates()
user_action_count = action.groupby('user_id')['type'].count()
user_order_count = action_type.groupby('user_id')['act_2'].sum()
user_order_rate = user_order_count / (user_action_count).fillna(0)
user_cate_count = action.groupby('user_id')['cate'].nunique()
user_sku_count = action.groupby('user_id')['sku_id'].nunique()
user_shop_count = action.groupby('user_id')['shop_id'].nunique()
user_stat['user_action_count_%s_%s' % (start_date, end_date)] = user_action_count
user_stat['user_order_rate_%s_%s' % (start_date, end_date)] = user_order_rate
user_stat['user_cate_count_%s_%s' % (start_date, end_date)] = user_cate_count
user_stat['user_sku_count_%s_%s' % (start_date, end_date)] = user_sku_count
user_stat['user_shop_count_%s_%s' % (start_date, end_date)] = user_shop_count
# 基于cate的统计特征
cate_stat = action[['cate']].drop_duplicates()
# cate下的用户特征
cate_user_count = action.groupby('cate')['user_id'].count()
cate_user_nunique = action.groupby('cate')['user_id'].nunique()
cate_order_count = action_type.groupby('cate')['act_2'].sum()
cate_order_rate = cate_order_count / cate_user_count
# cate下:购买用户/总用户
cate_order_user_count = action_type.groupby(['cate', 'user_id'])['act_2'].sum().reset_index()
cate_order_user_count = cate_order_user_count[cate_order_user_count.act_2 > 0].groupby('cate')[
'user_id'].nunique()
cate_order_user_rate = (cate_order_user_count / cate_user_nunique)
cate_sku_nunique = action.groupby('cate')['sku_id'].nunique()
# cate下的店铺特征
cate_shop_count = action.groupby('cate')['shop_id'].count()
cate_shop_nunique = action.groupby('cate')['shop_id'].nunique()
cate_shop_order_count = action_type.groupby('cate')['act_2'].sum()
cate_shop_order_rate = cate_shop_order_count / cate_shop_count
# cate下: 购买店铺/总店铺
cate_order_shop_count = action_type.groupby(['cate', 'shop_id'])['act_2'].sum().reset_index()
cate_order_shop_count = cate_order_shop_count[cate_order_shop_count.act_2 > 0].groupby('cate')[
'shop_id'].nunique()
cate_order_shop_rate = (cate_order_shop_count / cate_shop_nunique)
cate_stat['cate_user_count_%s_%s' % (start_date, end_date)] = cate_user_count
cate_stat['cate_user_nunique_%s_%s' % (start_date, end_date)] = cate_user_nunique
cate_stat['cate_order_rate_%s_%s' % (start_date, end_date)] = cate_order_rate.fillna(0)
cate_stat['cate_order_user_count_%s_%s' % (start_date, end_date)] = cate_order_user_count
cate_stat['cate_order_user_rate_%s_%s' % (start_date, end_date)] = cate_order_user_rate
cate_stat['cate_sku_nunique_%s_%s' % (start_date, end_date)] = cate_sku_nunique
cate_stat['cate_shop_nunique_%s_%s' % (start_date, end_date)] = cate_shop_nunique
cate_stat['cate_shop_order_rate_%s_%s' % (start_date, end_date)] = cate_shop_order_rate
cate_stat['cate_order_shop_count_%s_%s' % (start_date, end_date)] = cate_order_shop_count
cate_stat['cate_order_shop_rate_%s_%s' % (start_date, end_date)] = cate_order_shop_rate
# 基于shop_id的统计特征
shop_stat = action[['shop_id']].drop_duplicates()
shop_user_count = action.groupby('shop_id')['user_id'].count()
shop_user_nunique = action_type.groupby('shop_id')['user_id'].nunique()
shop_order_count = action_type.groupby('shop_id')['act_2'].sum()
shop_order_rate = shop_order_count / (shop_user_count).fillna(0)
shop_sku_nunique = action.groupby('shop_id')['sku_id'].nunique()
shop_sku_count = action.groupby('shop_id')['sku_id'].count()
# 店铺下:购买用户/总用户
shop_order_user_count = action_type.groupby(['shop_id', 'user_id'])['act_2'].sum().reset_index()
shop_order_user_count = shop_order_user_count[shop_order_user_count.act_2 > 0].groupby('shop_id')[
'user_id'].nunique()
shop_order_user_rate = (shop_order_user_count / shop_user_nunique)
shop_stat['shop_user_count_%s_%s' % (start_date, end_date)] = shop_user_count
shop_stat['shop_user_nunique_%s_%s' % (start_date, end_date)] = shop_user_nunique
shop_stat['shop_order_rate_%s_%s' % (start_date, end_date)] = shop_order_rate
shop_stat['shop_sku_count_%s_%s' % (start_date, end_date)] = shop_sku_count
shop_stat['shop_sku_nunique_%s_%s' % (start_date, end_date)] = shop_sku_nunique
shop_stat['shop_order_user_count_%s_%s' % (start_date, end_date)] = shop_order_user_count
shop_stat['shop_order_user_rate_%s_%s' % (start_date, end_date)] = shop_order_user_rate
action = pd.merge(action_index, user_stat, on='user_id', how='left')
action = pd.merge(action, cate_stat, on='cate', how='left')
action = pd.merge(action, shop_stat, on='shop_id', how='left')
#action.to_pickle(dump_path)
print('stat_feat finished')
return action
def get_hours(start_date, end_date):
d = parse(end_date) - parse(start_date)
hours = int(d.days * 24 + d.seconds / 3600)
return hours
# 行为时间特征
def get_time_feat(start_date, end_date):
dump_path = './cache/time_feature_F12_5_%s_%s.pkl' % (start_date, end_date)
if os.path.exists(dump_path):
f11_actions = pd.read_pickle(dump_path)
else:
actions = get_actions_product(start_date, end_date)
f11_actions = actions[['user_id']].drop_duplicates()
active_days = actions[['user_id', 'action_time']]
buy_days = actions[['user_id', 'action_time', 'type']]
active_last = actions[['user_id', 'action_time']]
buy_last = actions[['user_id', 'action_time', 'type']]
# 活动天数
active_days = active_days.groupby(['user_id', 'action_time']).size().reset_index()
active_days = active_days.groupby('user_id').size().reset_index()
active_days.rename(columns={0: 'user_active_days'}, inplace=True)
# 购买天数
buy_days = buy_days[buy_days['type'] == 2]
del buy_days['type']
buy_days = buy_days.groupby(['user_id', 'action_time']).size().reset_index()
buy_days = buy_days.groupby('user_id').size().reset_index()
buy_days.rename(columns={0: 'user_buy_days'}, inplace=True)
# 最近交互时间
active_last = active_last.sort_values(by='action_time', ascending=False)
active_last = active_last.drop_duplicates('user_id')
active_last['user_active_last'] = active_last['action_time'].apply(lambda x: get_hours(x, end_date))
del active_last['action_time']
# 最近购买时间(h)
buy_last = buy_last[buy_last['type'] == 2]
del buy_last['type']
buy_last = buy_last.sort_values(by='action_time', ascending=False)
buy_last = buy_last.drop_duplicates('user_id')
buy_last['user_buy_last'] = buy_last['action_time'].apply(lambda x: get_hours(x, end_date))
del buy_last['action_time']
f11_actions = f11_actions.merge(active_days, on='user_id', how='left')
f11_actions = f11_actions.merge(buy_days, on='user_id', how='left')
f11_actions = f11_actions.merge(active_last, on='user_id', how='left')
f11_actions = f11_actions.merge(buy_last, on='user_id', how='left')
pickle.dump(f11_actions, open(dump_path, 'wb'))
print('time finished')
return f11_actions
# 店铺特征
def get_shop_feat(start_date, end_date):
dump_path = './cache/shop_feature_F12_5_%s_%s.pkl' % (start_date, end_date)
if os.path.exists(dump_path):
shop_feature = pd.read_pickle(dump_path)
else:
shop = pd.read_pickle('./cache/origin_shop.pkl')
shop = shop[shop['vender_id'] != 3666]
del shop['vender_id']
shop = shop.drop_duplicates(['cate', 'shop_id'])
shop['vip_ratio'] = shop['vip_num'] / shop['fans_num']
shop_info = shop.copy()
action_shop = get_actions_product(start_date, end_date)
now = pd.to_datetime(action_shop.action_time.max())
shop_info['shop_reg_tm'] = pd.to_datetime(shop_info['shop_reg_tm'])
shop_info['shop_duration'] = shop_info['shop_reg_tm'].fillna(now).apply(lambda x: (now - x).days)
_ = shop_info.pop('shop_reg_tm')
cate_count_map = shop_info.cate.value_counts()
shop_info['cate_count_map'] = shop_info['cate'].map(cate_count_map).fillna(-1)
shop_info['cate_shop'] = shop_info['cate'].fillna(-1)
_ = shop_info.pop('cate')
action_shop = action_shop[['user_id', 'sku_id', 'action_time', 'shop_id', 'type']]
action_shop = action_shop.merge(shop_info[['shop_id', 'cate_shop']], on='shop_id', how='left')
action_shop['order'] = (action_shop.type == 2).astype('int8')
action_shop['explor'] = (action_shop.type == 1).astype('int8')
shop_stat = pd.DataFrame()
shop_stat['shop_order_mean'] = action_shop.groupby('shop_id')['order'].mean()
shop_stat['shop_order_sum'] = action_shop.groupby('shop_id')['order'].sum()
shop_stat['shop_act_count'] = action_shop.groupby('shop_id')['order'].count()
shop_cate_stat = pd.DataFrame()
shop_cate_stat['shop_cate_order_mean'] = action_shop.groupby('cate_shop')['order'].mean()
shop_cate_stat['shop_cate_order_sum'] = action_shop.groupby('cate_shop')['order'].sum()
shop_cate_stat['shop_cate_order_count'] = action_shop.groupby('cate_shop')['order'].count()
shop_stat = shop_stat.reset_index()
shop_cate_stat = shop_cate_stat.reset_index()
shop_info_ = shop_info.merge(shop_stat, on='shop_id', how='left')
shop_info_ = shop_info_.merge(shop_cate_stat, on='cate_shop', how='left')
shop_feature = shop_info_.merge(shop_stat, on='shop_id', how='left')
pickle.dump(shop_feature, open(dump_path, 'wb'))
del shop_feature['cate_shop']
print('shop finished')
return shop_feature
# 商品和评论特征
def get_product_stat_feat(start_date, end_date):
dump_path = './cache/product_feature_F12_5_%s_%s.pkl' % (start_date, end_date)
if os.path.exists(dump_path):
cate_stat = pd.read_pickle(dump_path)
else:
product_ori = pd.read_pickle('./cache/origin_product.pkl')
comment_ori = pd.read_pickle('./cache/origin_comment.pkl')
cate_info = product_ori.copy()
comment_sku = comment_ori.groupby('sku_id').sum().reset_index()
cate_info = cate_info.merge(comment_sku, on='sku_id', how='left')
cate_stat_1 = pd.DataFrame()
cate_stat_1['cate_sku_count'] = cate_info.groupby('cate')['sku_id'].count()
cate_stat_1['cate_brand_count'] = cate_info.groupby('cate')['brand'].nunique()
cate_stat_1['cate_shop_count'] = cate_info.groupby('cate')['shop_id'].nunique()
cate_stat_1['cate_comments_count'] = cate_info.groupby('cate')['comments'].sum()
cate_stat_1['cate_good_comments_count'] = cate_info.groupby('cate')['good_comments'].sum()
cate_stat_1['cate_bad_comments_count'] = cate_info.groupby('cate')['bad_comments'].sum()
cate_stat_1['cate_good_rate'] = cate_stat_1['cate_good_comments_count'] / cate_stat_1['cate_comments_count']
cate_stat_1['cate_good_rate'] = cate_stat_1.cate_good_rate.fillna(cate_stat_1.cate_good_rate.mean())
cate_stat = cate_stat_1.reset_index()
pickle.dump(cate_stat, open(dump_path, 'wb'))
print('product finished')
return cate_stat
def cate_user_reg(d):
if d <0:
d = -1
elif d>=0 and d<=3:
d = 1
elif d>3 and d<=6:
d = 2
elif d>6 and d<=12:
d = 3
elif d>12 and d<=24:
d = 4
elif d>24 and d<=48:
d = 5
else:
d = 6
return d
# 用户特征
def user_features(start_date, end_date):
dump_path = './cache/user_features_F12_5_%s_2.pkl' % (end_date)
if os.path.exists(dump_path):
actions = pd.read_pickle(dump_path)
else:
user = pd.read_pickle('./cache/origin_user.pkl')
user['reg_duration'] = ((pd.to_datetime(user['user_reg_tm']) - pd.to_datetime('2018/04/16')).dt.days) // 30
user['reg_duration_cate'] = user['reg_duration'].apply(cate_user_reg)
sub_action = get_actions_product(start_date, end_date)
end_date = pd.to_datetime(end_date)
day = timedelta(1, 0)
print('=====> 提取特征...')
sub_action['action_time'] = pd.to_datetime(sub_action['action_time'])
sub_1 = sub_action[(sub_action['action_time'] >= end_date - 1 * day) & (sub_action['action_time'] < end_date)]
sub_7 = sub_action[(sub_action['action_time'] >= end_date - 7 * day) & (sub_action['action_time'] < end_date)]
sub_all = sub_action[sub_action['action_time'] < end_date]
# ========================================
# 用户历史行为
# ========================================
# 6种行为特征
df = pd.get_dummies(sub_all['type'], prefix='type')
df['type_0'] = df.sum(axis=1)
df = pd.concat([sub_all[['user_id', 'cate', 'shop_id']], df], axis=1)
# 行为sum
u_feature_all = df.drop(['cate', 'shop_id'], axis=1).groupby('user_id').sum().reset_index()
col = ['user_id', 'browse_all', 'buy_all', 'follow_all', 'comment_all', 'action_all']
u_feature_all.columns = col
u_feature_all['buy/browse_all'] = u_feature_all['buy_all'] / (u_feature_all['browse_all'] + 0.001) * 100
u_feature_all['buy/follow_all'] = u_feature_all['buy_all'] / (u_feature_all['follow_all'] + 0.001) * 100
u_feature_all['buy/comment_all'] = u_feature_all['buy_all'] / (u_feature_all['comment_all'] + 0.001) * 100
# 活跃天数
u_days = sub_all[['user_id', 'action_time']]
u_days = u_days.drop_duplicates()
u_days = u_days.groupby('user_id').count().reset_index()
u_days.rename(columns={'date': 'u_days_all'}, inplace=True)
u_feature_all = pd.merge(u_feature_all, u_days, on='user_id', how='left').fillna(0)
# 时间特征
u_days = sub_all[['user_id', 'action_time']]
u_start = u_days.groupby('user_id').min().reset_index()
u_start.rename(columns={'action_time': 'start'}, inplace=True)
u_end = u_days.groupby('user_id').max().reset_index()
u_end.rename(columns={'action_time': 'end'}, inplace=True)
u_duration = pd.merge(u_start, u_end, on='user_id')
u_duration['u_duration_all'] = u_duration['end'] - u_duration['start']
u_duration['u_duration_all'] = u_duration['u_duration_all'].map(lambda x: x.days * 24 + x.seconds / 3600)
u_duration = u_duration[['user_id', 'u_duration_all']]
u_feature_all = pd.merge(u_feature_all, u_duration, on='user_id', how='left').fillna(0)
# 行为/时间
u_feature_all['action_avg_all'] = u_feature_all['action_all'] / (u_feature_all['u_duration_all'] + 0.001)
u_feature_all['browse_avg_all'] = u_feature_all['browse_all'] / (u_feature_all['u_duration_all'] + 0.001)
u_feature_all['buy_avg_all'] = u_feature_all['buy_all'] / (u_feature_all['u_duration_all'] + 0.001)
u_feature_all['follow_avg_all'] = u_feature_all['follow_all'] / (u_feature_all['u_duration_all'] + 0.001)
u_feature_all['comment_avg_all'] = u_feature_all['comment_all'] / (u_feature_all['u_duration_all'] + 0.001)
# ========================================
# 用户7天行为特征
# ========================================
df = pd.get_dummies(sub_7['type'], prefix='type')
df['type_0'] = df.sum(axis=1)
df = pd.concat([sub_7[['user_id', 'cate', 'shop_id']], df], axis=1)
# 子集行为特征
u_feature_7 = df.drop(['cate', 'shop_id'], axis=1).groupby('user_id').sum().reset_index()
col = ['user_id', 'browse_7', 'buy_7', 'follow_7', 'comment_7', 'action_7']
u_feature_7.columns = col
# 时间特征
u_days = sub_7[['user_id', 'action_time']]
u_start = u_days.groupby('user_id').min().reset_index()
u_start.rename(columns={'action_time': 'start'}, inplace=True)
u_end = u_days.groupby('user_id').max().reset_index()
u_end.rename(columns={'action_time': 'end'}, inplace=True)
u_duration = pd.merge(u_start, u_end, on='user_id')
u_duration['u_duration_7'] = u_duration['end'] - u_duration['start']
u_duration['u_duration_7'] = u_duration['u_duration_7'].map(lambda x: x.days * 24 + x.seconds / 3600)
u_duration['u_stop_7'] = end_date - u_duration['end']
u_duration['u_stop_7'] = u_duration['u_stop_7'].map(lambda x: x.days * 24 + x.seconds / 3600)
u_duration = u_duration[['user_id', 'u_duration_7', 'u_stop_7']]
u_feature_7 = pd.merge(u_feature_7, u_duration, on='user_id', how='left').fillna(0)
# ========================================
# 用户1天行为特征
# ========================================
df = pd.get_dummies(sub_1['type'], prefix='type')
df['type_0'] = df.sum(axis=1)
df = pd.concat([sub_1[['user_id', 'cate', 'shop_id']], df], axis=1)
u_feature_1 = df.drop(['cate', 'shop_id'], axis=1).groupby('user_id').sum().reset_index()
col = ['user_id', 'browse_1', 'buy_1', 'follow_1', 'comment_1', 'action_1']
u_feature_1.columns = col
# ========================================
# 特征融合
# ========================================
actions = pd.merge(user[['user_id', 'user_lv_cd', 'reg_duration', 'reg_duration_cate']], u_feature_all,
on='user_id', how='left')
actions['lv/reg_day'] = actions['user_lv_cd'] / (actions['reg_duration'] + 0.001) * 100
actions['lv/reg_day_cate'] = actions['user_lv_cd'] / (actions['reg_duration_cate'] + 0.001)
actions = pd.merge(actions, u_feature_7, on='user_id', how='left')
actions['action_7D/all'] = actions['action_7'] / (actions['action_all'] + 0.001)
actions = pd.merge(actions, u_feature_1, on='user_id', how='left')
actions['action_diff1'] = actions['action_1'] - actions['action_avg_all']
actions['browse_diff1'] = actions['browse_1'] - actions['browse_avg_all']
actions['buy_diff1'] = actions['buy_1'] - actions['buy_avg_all']
actions['follow_diff1'] = actions['follow_1'] - actions['follow_avg_all']
actions['comment_diff1'] = actions['comment_1'] - actions['comment_avg_all']
actions['action_diff7'] = actions['action_7'] - actions['action_avg_all']
actions['browse_diff7'] = actions['browse_7'] - actions['browse_avg_all']
actions['buy_diff7'] = actions['buy_7'] - actions['buy_avg_all']
actions['follow_diff7'] = actions['follow_7'] - actions['follow_avg_all']
actions['comment_diff7'] = actions['comment_7'] - actions['comment_avg_all']
col = ['browse_7', 'buy_7', 'follow_7', 'comment_7', 'action_7','user_lv_cd', 'browse_1', 'buy_1',
'follow_1', 'comment_1', 'action_1']
actions = actions.drop(col, axis=1)
print(actions.columns)
print('=====> 完成!')
pickle.dump(actions, open(dump_path, 'wb'))
print(actions.shape)
print('user feat finished')
return actions
# 交叉特征
def get_cross_feat(start_date, end_date):
dump_path = './cache/cross_feat_F12_5_%s_%s.pkl' % (start_date, end_date)
if os.path.exists(dump_path):
actions = pd.read_pickle(dump_path)
else:
actions = get_actions_product(start_date, end_date)[['user_id', 'cate', 'shop_id']]
actions['cnt'] = 0
action1 = actions.groupby(['user_id', 'cate', 'shop_id'], as_index=False).count()
action2 = actions.groupby('user_id', as_index=False).count()
del action2['cate']
del action2['shop_id']
action2.columns = ['user_id', 'user_cnt']
action3 = actions.groupby('cate', as_index=False).count()
del action3['user_id']
del action3['shop_id']
action3.columns = ['cate', 'cate_cnt']
action4 = actions.groupby('shop_id', as_index=False).count()
del action4['user_id']
del action4['cate']
action4.columns = ['shop_id', 'shop_cnt']
actions = pd.merge(action1, action2, how='left', on='user_id')
actions = pd.merge(actions, action3, how='left', on='cate')
actions = pd.merge(actions, action4, how='left', on='shop_id')
actions['user_cnt'] = actions['cnt'] / actions['user_cnt']
actions['cate_cnt'] = actions['cnt'] / actions['cate_cnt']
actions['shop_cnt'] = actions['cnt'] / actions['shop_cnt']
del actions['cnt']
# pickle.dump(actions, open(dump_path, 'wb'))
actions.columns = ['user_id', 'cate', 'shop_id'] + ['cross_feat_' + str(i) for i in range(1, actions.shape[1] - 2)]
print('cross feature finished')
return actions
def get_last1day_cart_fearture(start_date, end_date, day):
'''
设计两个特征
第一个是在f12id上act5的总和
第二个是f12id act5行为总和 * (act_2==0)
'''
this_end_date = pd.to_datetime(end_date)
this_start_date = this_end_date - timedelta(days=day)
# date转化为str
this_end_date = str(this_end_date).split(' ')[0]
this_start_date = str(this_start_date).split(' ')[0]
x_action = get_actions_product_cart(this_start_date, this_end_date)
print('from:', x_action.action_time.min(), ' to:', x_action.action_time.max())
x_oh = pd.get_dummies(x_action.type, prefix='act').astype('int8')
x_action_oh = pd.concat([x_action[['user_id', 'cate', 'shop_id', 'sku_id', 'action_time']], x_oh], axis=1)
x_act5_stat = x_action_oh.groupby(['user_id', 'cate', 'shop_id'])[['act_5', 'act_2']].sum().add_prefix(
'lastday_sum_').reset_index()
x_act5_stat['cart_not_buy'] = x_act5_stat['lastday_sum_act_5'] * (x_act5_stat['lastday_sum_act_2'] == 0)
x_act5_stat['cart_minus_buy'] = x_act5_stat['lastday_sum_act_5'] - x_act5_stat['lastday_sum_act_2']
return x_act5_stat
"""
########################
user_id feat
########################
"""
# 行为前的累积特征(访问天数)
def get_user_feat1(start_date, end_date):
dump_path = './cache/user_feat1_after_F12_5_%s_%s.pkl' % (start_date, end_date)
if os.path.exists(dump_path):
actions = pd.read_pickle(dump_path)
else:
# 购买前的浏览天数
def user_feat_2_1(start_date, end_date):
actions = get_actions_product(start_date, end_date)[['user_id', 'type', 'action_time']]
actions['action_time'] = actions['action_time'].map(lambda x: x.split(' ')[0])
visit = actions[actions['type'] == 1]
visit = visit.drop_duplicates(['user_id', 'action_time'], keep='first')
del visit['action_time']
del actions['action_time']
visit = visit.groupby('user_id', as_index=False).count()
visit.columns = ['user_id', 'visit']
buy = actions[actions['type'] == 2]
buy = buy.groupby('user_id', as_index=False).count()
buy.columns = ['user_id', 'buy']
actions = pd.merge(visit, buy, on='user_id', how='left')
actions['visit_day_before_buy'] = actions['visit'] / actions['buy']
del actions['buy']
del actions['visit']
return actions
# 用户关注前访问天数
def user_feat_3_1(start_date, end_date):
actions = get_actions_product(start_date, end_date)[['user_id', 'type', 'action_time']]
actions['action_time'] = actions['action_time'].map(lambda x: x.split(' ')[0])
visit = actions[actions['type'] == 1]
visit = visit.drop_duplicates(['user_id', 'action_time'], keep='first')
del visit['action_time']
del actions['action_time']
visit = visit.groupby('user_id', as_index=False).count()
visit.columns = ['user_id', 'visit']
guanzhu = actions[actions['type'] == 3]
guanzhu = guanzhu.groupby('user_id', as_index=False).count()
guanzhu.columns = ['user_id', 'guanzhu']
actions = pd.merge(visit, guanzhu, on='user_id', how='left')
actions['visit_day_before_guanzhu'] = actions['visit'] / actions['guanzhu']
del actions['guanzhu']
del actions['visit']
return actions
# 用户购买前关注天数
def user_feat_2_5(start_date, end_date):
actions = get_actions_product(start_date, end_date)[['user_id', 'type', 'action_time']]
actions['action_time'] = actions['action_time'].map(lambda x: x.split(' ')[0])
guanzhu = actions[actions['type'] == 3]
guanzhu = guanzhu.drop_duplicates(['user_id', 'action_time'], keep='first')
del guanzhu['action_time']
del actions['action_time']
guanzhu = guanzhu.groupby('user_id', as_index=False).count()
guanzhu.columns = ['user_id', 'guanzhu']
buy = actions[actions['type'] == 2]
buy = buy.groupby('user_id', as_index=False).count()
buy.columns = ['user_id', 'buy']
actions = pd.merge(guanzhu, buy, on='user_id', how='left')
actions['guanzhu_day_before_buy'] = actions['guanzhu'] / actions['buy']
del actions['buy']
del actions['guanzhu']
return actions
actions = pd.merge(user_feat_2_1(start_date, end_date), user_feat_3_1(start_date, end_date), on='user_id',
how='outer')
actions = pd.merge(actions, user_feat_2_5(start_date, end_date), on='user_id', how='outer')
pickle.dump(actions, open(dump_path, 'wb'))
actions.columns = ['user_id'] + ['u_feat1_' + str(i) for i in range(1, actions.shape[1])]
print('get_user_feat1 finished')
return actions
# 用户平均访问间隔 慢
def get_user_feat2(start_date, end_date):
dump_path = './cache/user_feat2_F12_5_%s_%s.pkl' % (start_date, end_date)
if os.path.exists(dump_path):
actions = pd.read_pickle(dump_path)
else:
df = get_actions_product(start_date, end_date)[['user_id', 'action_time']]
df['action_time'] = df['action_time'].map(lambda x: x.split(' ')[0])
df = df.drop_duplicates(['user_id', 'action_time'], keep='first')
df['action_time'] = df['action_time'].map(lambda x: datetime.strptime(x, '%Y-%m-%d'))
actions = df.groupby('user_id', as_index=False).agg(lambda x: x['action_time'].diff().mean())
actions['avg_visit'] = actions['action_time'].dt.days
del actions['action_time']
pickle.dump(actions, open(dump_path, 'wb'))
print('get_user_feat2 finished')
return actions
# 用户平均4种行为的访问间隔 慢
def get_user_feat3(start_date, end_date):
dump_path = './cache/user_feat3_F12_5_six_%s_%s.pkl' % (start_date, end_date)
if os.path.exists(dump_path):
actions = pd.read_pickle(dump_path)
else:
df = get_actions_product(start_date, end_date)[['user_id', 'action_time', 'type']]
df = df.dropna()
df['action_time'] = pd.to_datetime(df['action_time'])
df['action_time'] = (pd.to_datetime(start_date) - df['action_time']).dt.days
df['action_time'] = df['action_time'] * (-1)
df = df.drop_duplicates(['user_id', 'action_time', 'type'], keep='first')
actions = df.groupby(['user_id', 'type']).agg(lambda x: np.diff(x).mean())
actions = actions.unstack()
actions.columns = list(range(actions.shape[1]))
actions = actions.reset_index()
pickle.dump(actions, open(dump_path, 'wb'))
actions.columns = ['user_id'] + ['u_feat3_six_' + str(i) for i in range(1, actions.shape[1])]
print('get_user_feat3 finished')
return actions
# 用户的购买频率 慢
def get_user_feat4(start_date, end_date):
dump_path = './cache/user_feat4_F12_5_six_%s_%s.pkl' % (start_date, end_date)
if os.path.exists(dump_path):
actions = pd.read_pickle(dump_path)
else:
df = get_actions_product(start_date, end_date)[['user_id', 'type', 'action_time']]
df['action_time'] = pd.to_datetime(df['action_time'])
actions = df.groupby(['user_id', 'type'], as_index=False).count()
time_min = df.groupby(['user_id', 'type'], as_index=False).min()
time_max = df.groupby(['user_id', 'type'], as_index=False).max()
time_cha = pd.merge(time_max, time_min, on=['user_id', 'type'], how='left')
time_cha['action_time_x'] = pd.to_datetime(time_cha['action_time_x'])
time_cha['action_time_y'] = pd.to_datetime(time_cha['action_time_y'])
time_cha['cha_hour'] = 1 + (time_cha['action_time_x'] - time_cha['action_time_y']).dt.days * 24 + \
(time_cha['action_time_x'] - time_cha['action_time_y']).dt.seconds // 3600
del time_cha['action_time_x']
del time_cha['action_time_y']
actions = pd.merge(time_cha, actions, on=['user_id', 'type'], how="left")
actions = actions.groupby(['user_id', 'type']).sum()
actions['cnt/time'] = actions['action_time'] / actions["cha_hour"]
actions = actions.unstack()
actions.columns = list(range(actions.shape[1]))
actions = actions.reset_index()
actions = actions.fillna(0)
pickle.dump(actions, open(dump_path, 'wb'))
actions.columns = ['user_id'] + ['u_feat4_' + str(i) for i in range(1, actions.shape[1])]
print('get_user_feat4 finished')
return actions
# 行为0-1化
def user_top_k_0_1(start_date, end_date):
actions = get_actions_product(start_date, end_date)
actions = actions[['user_id', 'sku_id', 'type']]
df = pd.get_dummies(actions['type'], prefix='%s-%s-action' % (start_date, end_date))
actions = pd.concat([actions, df], axis=1) # type: pd.DataFrame
actions = actions.groupby('user_id', as_index=False).sum()
del actions['type']
del actions['sku_id']
user_id = actions['user_id']
del actions['user_id']
actions = actions.applymap(lambda x: 1 if x > 0 else 0)
actions = pd.concat([user_id, actions], axis=1)
return actions
# 用户最近K天行为0/1提取
def get_user_feat5(start_date, end_date):
dump_path = './cache/user_feat5_F12_5_%s_%s.pkl' % (start_date, end_date)
if os.path.exists(dump_path):
actions = pd.read_pickle(dump_path)
else:
actions = None
for i in (1, 2, 3, 4, 5, 6, 7, 15, 30):
start_days = datetime.strptime(end_date, '%Y-%m-%d') - timedelta(days=i)
start_days = start_days.strftime('%Y-%m-%d')
if actions is None:
actions = user_top_k_0_1(start_days, end_date)
else:
actions = pd.merge(actions, user_top_k_0_1(start_days, end_date), how='outer', on='user_id')
pickle.dump(actions, open(dump_path, 'wb'))
actions.columns = ['user_id'] + ['u_feat5_' + str(i) for i in range(1, actions.shape[1])]
print('get_user_feat5 finished')
return actions
# 获取用户的重复购买率
def get_user_feat6(start_date, end_date):
dump_path = './cache/product_feat6_F12_5_%s_%s.pkl' % (start_date, end_date)
if os.path.exists(dump_path):
actions = pd.read_pickle(dump_path)
else:
df = get_actions_product(start_date, end_date)[['user_id', 'sku_id', 'type']]
df = df[df['type'] == 2] # 购买的行为
df = df.groupby(['user_id', 'sku_id'], as_index=False).count()
df.columns = ['user_id', 'sku_id', 'count1']
df['count1'] = df['count1'].map(lambda x: 1 if x > 1 else 0)
grouped = df.groupby(['user_id'], as_index=False)
actions = grouped.count()[['user_id', 'count1']]
actions.columns = ['user_id', 'count']
re_count = grouped.sum()[['user_id', 'count1']]
re_count.columns = ['user_id', 're_count']
actions = pd.merge(actions, re_count, on='user_id', how='left')
re_buy_rate = actions['re_count'] / actions['count']
actions = pd.concat([actions['user_id'], re_buy_rate], axis=1)
actions.columns = ['user_id', 're_buy_rate']
pickle.dump(actions, open(dump_path, 'wb'))
actions.columns = ['user_id'] + ['u_feat6_' + str(i) for i in range(1, actions.shape[1])]
print('get_user_feat6 finished')
return actions
# 获取最近一次行为的时间距离当前时间的差距
def get_user_feat7(start_date, end_date):
dump_path = './cache/user_feat7_F12_5_%s_%s.pkl' % (start_date, end_date)
if os.path.exists(dump_path):
actions = pd.read_pickle(dump_path)
else:
df = get_actions_product(start_date, end_date)[['user_id', 'action_time', 'type']]
df = df.drop_duplicates(['user_id', 'type'], keep='last')
df['action_time'] = pd.to_datetime(df['action_time'])
df['action_time'] = (pd.to_datetime(end_date) - df['action_time']).dt.days
df['action_time'] = df['action_time'] + 1
actions = df.groupby(['user_id', 'type']).sum()
actions = actions.unstack()
actions.columns = list(range(actions.shape[1]))
actions = actions.reset_index()
actions = actions.fillna(30)
pickle.dump(actions, open(dump_path, 'wb'))
actions.columns = ['user_id'] + ['u_feat7_' + str(i) for i in range(1, actions.shape[1])]
print('get_user_feat7 finished')
return actions
# 用户购买/加入购物车/关注前访问次数
def get_user_feat8(start_date, end_date):
dump_path = './cache/user_feat8_F12_5_%s_%s.pkl' % (start_date, end_date)
if os.path.exists(dump_path):
actions = pd.read_pickle(dump_path)
else:
# 用户购买前访问次数
def user_feat_8_1(start_date, end_date):
actions = get_actions_product(start_date, end_date)[['user_id', 'type']]
visit = actions[actions['type'] == 1]
visit = visit.groupby('user_id', as_index=False).count()
visit.columns = ['user_id', 'visit']
buy = actions[actions['type'] == 2]
buy = buy.groupby('user_id', as_index=False).count()
buy.columns = ['user_id', 'buy']
actions = pd.merge(visit, buy, on='user_id', how='left')
actions['visit_num_before_buy'] = actions['visit'] / actions['buy']
del actions['buy']
del actions['visit']
return actions
# 用户关注前访问次数
def user_feat_8_2(start_date, end_date):
actions = get_actions_product(start_date, end_date)[['user_id', 'type']]
visit = actions[actions['type'] == 1]
visit = visit.groupby('user_id', as_index=False).count()
visit.columns = ['user_id', 'visit']
guanzhu = actions[actions['type'] == 3]
guanzhu = guanzhu.groupby('user_id', as_index=False).count()
guanzhu.columns = ['user_id', 'guanzhu']
actions = pd.merge(visit, guanzhu, on='user_id', how='left')
actions['visit_num_before_guanzhu'] = actions['visit'] / actions['guanzhu']
del actions['guanzhu']
del actions['visit']
return actions
# 用户购买前关注次数
def user_feat_8_3(start_date, end_date):
actions = get_actions_product(start_date, end_date)[['user_id', 'type']]
guanzhu = actions[actions['type'] == 3]
guanzhu = guanzhu.groupby('user_id', as_index=False).count()
guanzhu.columns = ['user_id', 'guanzhu']