def read_and_save_features(
self,
train_table_name: str,
test_table_name: str,
train_output_path: str,
test_output_path: str,
) -> None:
df_train_input = self._read_from_bigquery(train_table_name)
df_test_input = self._read_from_bigquery(test_table_name)
df_train_features, df_test_features = self.make_features(
df_train_input, df_test_input)
assert (df_train_input.shape[0] == df_train_features.shape[0]
), "generated train features is not compatible with the table"
assert (df_test_input.shape[0] == df_test_features.shape[0]
), "generated test features is not compatible with the table"
df_train_features.columns = f"{self.name}_" + df_train_features.columns
df_test_features.columns = f"{self.name}_" + df_test_features.columns
if self.save_memory:
self._logger.info("Reduce memory size - train data")
df_train_features = reduce_mem_usage(df_train_features)
self._logger.info("Reduce memory size - test data")
df_test_features = reduce_mem_usage(df_test_features)
self._logger.info(f"Saving features to {train_output_path}")
df_train_features.to_feather(train_output_path)
self._logger.info(f"Saving features to {test_output_path}")
df_test_features.to_feather(test_output_path)
def read_data():
print('\n\nRunning read_data')
calendar_df = pd.read_csv('./input/calendar.csv') #date, wm_yr_wk, weekday, wday, month, year, d, event_name_1, event_type_1, snap_CA, snap_TX, snap_WI
calendar_df = reduce_mem_usage(calendar_df)
print('Calendar has {} rows and {} columns'.format(calendar_df.shape[0], calendar_df.shape[1]))
# id, submission_id are only unique, # 30k
# 'id', 'item_id', 'dept_id', 'cat_id', 'store_id', 'state_id', 'd_1' ... 'd_1941'
sales_train_evaluation_df = pd.read_csv('./input/sales_train_evaluation.csv')
print('Sales train validation has {} rows and {} columns'.format(sales_train_evaluation_df.shape[0], sales_train_evaluation_df.shape[1]))
# no uniques, # 6M
sell_prices_df = pd.read_csv('./input/sell_prices.csv') #store_id, item_id, wm_yr_wk, sell_price
sell_prices_df = reduce_mem_usage(sell_prices_df)
print('Sell prices has {} rows and {} columns'.format(sell_prices_df.shape[0], sell_prices_df.shape[1]))
submission_df = pd.read_csv('./input/sample_submission.csv')
calendar_df = encode_categorical(calendar_df, ["event_name_1", "event_type_1", "event_name_2", "event_type_2"]).pipe(reduce_mem_usage)
sales_train_evaluation_df = encode_categorical(sales_train_evaluation_df, ["item_id", "dept_id", "cat_id", "store_id", "state_id"]).pipe(reduce_mem_usage)
sell_prices_df = encode_categorical(sell_prices_df, ["item_id", "store_id"]).pipe(reduce_mem_usage)
# PICKLES
calendar_df.to_pickle('./data/calendar_df.pkl.compress', compression="gzip")
sales_train_evaluation_df.to_pickle('./data/sales_train_evaluation_df.pkl.compress', compression="gzip")
sell_prices_df.to_pickle('./data/sell_prices_df.pkl.compress', compression="gzip")
return calendar_df, sell_prices_df, sales_train_evaluation_df, submission_df
def extract_features(train_df):
identity_df = pd.read_csv(config.DATA_PATH + 'train_identity.csv')
target = train_df['isFraud']
train_df.drop(['isFraud'], axis=1, inplace=True)
train_df = train_df.merge(identity_df, on='TransactionID', how='left')
handl_P_emaildomain(train_df)
handle_NaN(train_df)
transfer_cat_2_int(train_df)
drop_corr_column(train_df)
reduce_mem_usage(train_df)
# del train, df
# gc.collect()
# return X_train, y_train, test
X = train_df #.to_numpy()
y = target #.to_numpy()
return X, y
def fe(df, path):
# time delta
df['AvSigVersion-m-Census_OSVersion'] = (df['AvSigVersion'] -
df['Census_OSVersion']).dt.seconds
df['Census_OSVersion-m-OsBuildLab'] = (df['Census_OSVersion'] -
df['OsBuildLab']).dt.seconds
# min max
col = ['AvSigVersion', 'Census_OSVersion', 'OsBuildLab']
df['date_min'] = df[col].min(1)
df['date_max'] = df[col].max(1)
df['date_max-m-min'] = (df['date_max'] - df['date_min']).dt.seconds
# from max
d_max = df[col].max().max()
df['max-m-AvSigVersion'] = (d_max - df['AvSigVersion']).dt.seconds
df['max-m-Census_OSVersion'] = (d_max - df['Census_OSVersion']).dt.seconds
df['max-m-OsBuildLab'] = (d_max - df['OsBuildLab']).dt.seconds
# save dt
df[['AvSigVersion', 'Census_OSVersion', 'OsBuildLab']].to_feather(path)
# into int64 and rank
for c in [
'AvSigVersion', 'Census_OSVersion', 'OsBuildLab', 'date_min',
'date_max'
]:
df[c] = df[c].astype(np.int64) // 10**9
df.loc[df[c] < 0, c] = np.nan
df[c] = df[c].rank(pct=True)
utils.reduce_mem_usage(df)
return
def multi(args):
c, outpath_tr, outpath_te = args
tr_f = pd.DataFrame(index=tr.index)
te_f = pd.DataFrame(index=te.index)
# count train + test
di_tr = frequency_encoding(c, False, True)
di_trte = frequency_encoding(c, True, True)
tr_f[c + '_ts'] = tr[c].map(lambda x: di_tr.get(x, np.nan))
te_f[c + '_ts'] = te[c].map(lambda x: di_trte.get(x, np.nan))
# count train + test and na
di_tr = frequency_encoding(c, False, False)
di_trte = frequency_encoding(c, True, False)
tr_f[c + '_ts_na'] = tr[c].map(lambda x: di_tr.get(x, np.nan))
te_f[c + '_ts_na'] = te[c].map(lambda x: di_trte.get(x, np.nan))
utils.reduce_mem_usage(tr_f)
utils.reduce_mem_usage(te_f)
# output
tr_f.add_prefix(PREF + '_').to_feather(outpath_tr)
te_f.add_prefix(PREF + '_').to_feather(outpath_te)
return
def transform(self, df):
with Timer('features.FeatureGenerator.transform',
verbose=self.verbose):
# Hand Written Features
simple_feature_generator = SimpleFeatureGenerator(
numeric=self.numeric, verbose=self.verbose)
df_features = pd.concat(
[df, simple_feature_generator.fit_transform(df)], axis=1)
df_features = reduce_mem_usage(df_features)
# 1-st level
features = self.numeric + simple_feature_generator.get_feature_names(
)
df_features = pd.concat([
df_features,
GroupAggregatedFeatureGenerator(
features, verbose=self.verbose).fit_transform(df_features),
],
axis=1)
df_features = reduce_mem_usage(df_features)
if self.created_features is None:
self.created_features = [
col for col in df_features.columns if col in df.columns
]
else:
# TODO: test
pass
return df_features
def multi(args):
c, outpath_tr, outpath_te = args
tr_f = pd.DataFrame(index=tr.index)
te_f = pd.DataFrame(index=te.index)
di = frequency_encoding(c, False, False)
tr_f[c + '_trte_00'] = tr[c].map(lambda x: di.get(x, np.nan))
te_f[c + '_trte_00'] = te[c].map(lambda x: di.get(x, np.nan))
di = frequency_encoding(c, False, True)
tr_f[c + '_trte_01'] = tr[c].map(lambda x: di.get(x, np.nan))
te_f[c + '_trte_01'] = te[c].map(lambda x: di.get(x, np.nan))
di = frequency_encoding(c, True, False)
tr_f[c + '_trte_10'] = tr[c].map(lambda x: di.get(x, np.nan))
te_f[c + '_trte_10'] = te[c].map(lambda x: di.get(x, np.nan))
di = frequency_encoding(c, True, True)
tr_f[c + '_trte_11'] = tr[c].map(lambda x: di.get(x, np.nan))
te_f[c + '_trte_11'] = te[c].map(lambda x: di.get(x, np.nan))
utils.reduce_mem_usage(tr_f)
utils.reduce_mem_usage(te_f)
# output
tr_f.add_prefix(PREF + '_').to_feather(outpath_tr)
te_f.add_prefix(PREF + '_').to_feather(outpath_te)
return
def gen_level_aggs(col, updata=False):
feat_path = os.path.join(feats_root,'level_aggs_{}.pkl'.format(col))
if os.path.exists(feat_path) and updata == False:
print('Found ' + feat_path)
else:
print('Generating ' + feat_path)
dfal = get_nominal_dfal()[[col, 'da'] + level_cols]
dmax = dfal.da.max()
dmin = dfal.da.min()
level_agg = None
for da in sorted(dfal.da.unique())[1:]:
da_agg = None
for win_das in [1, 2, 3]:
if da - win_das < dmin:
continue
agg = gen_level_agg_features(dfal, da, win_das, col)
print('Generated {} {} {}'.format(col, da, win_das))
if da_agg is None:
da_agg = agg
else:
da_agg = da_agg.merge(agg, how='outer')
if level_agg is None:
level_agg = da_agg
else:
level_agg = pd.concat([level_agg, da_agg], axis=0)
level_agg.fillna(0, inplace=True)
level_agg, _ = reduce_mem_usage(level_agg)
print(level_agg.shape)
level_agg, _ = reduce_mem_usage(level_agg)
dump_pickle(level_agg, feat_path)
def data_loader():
train = pd.read_csv("data/")
test = pd.read_csv("data/")
train2 = utils.reduce_mem_usage(train)
train2.to_csv("data/train2.csv")
test2 = utils.reduce_mem_usage(test)
test2.to_csv("data/test2.csv")
exit()
return train, test
def fe(df):
df['AvSigVersion'] = (df['AvSigVersion'] - date_min).dt.days
df['AvSigVersion'] = df['AvSigVersion'] // 7
df.rename(columns={'AvSigVersion': 'key'}, inplace=True)
df = pd.merge(df[['key']], report, on='key', how='left')
del df['key']
df = df.rank(pct=True)
utils.reduce_mem_usage(df)
return df
def multi_te(args):
cat, outpath = args
tbl = te.groupby(cat).agg(num_agg)
tbl.columns = [f'{"-".join(cat)}_{i}_{j}' for i, j in tbl.columns]
tbl.reset_index(inplace=True)
te_f = pd.merge(te[[cat]], tbl, on=cat, how='left')
del te_f[cat]
utils.reduce_mem_usage(te_f)
te_f.add_prefix(PREF + '_').to_feather(outpath)
return
def load_data(file_name,
directory='../input/',
sample_size=None,
normilize_names=True):
"""
Load data from .csv file.
Transform columns names from CamelCase to _underscore notation.
:param file_name: file name
:param directory: path to the directory with the file
:param nrows: sample size
:param normilize_names: camelcase to underscore
:return: DataFrame
"""
if file_name.startswith('train'):
full_file_name = 'train_V2.csv'
elif file_name.startswith('test'):
full_file_name = 'test_V2.csv'
elif 'sub' in file_name:
full_file_name = 'sample_submission_V2.csv'
else:
full_file_name = file_name
with Timer('Data Loading:'):
df = pd.read_csv(os.path.join(directory, full_file_name),
nrows=sample_size)
df = reduce_mem_usage(df)
gc.collect()
if normilize_names:
df.columns = [
camelcase_to_underscore(col) for col in df.columns
]
return df
def transform(self, df):
"""
Used to test/submit
:param df: DataFrame
:return: DataFrame
"""
with Timer('preprocessing.Preprocessor.transform',
verbose=self.verbose):
# Drop ID and Categorical columns
to_drop = [
col for col in df.columns
if col in self.id + [self.target] + self.categorical
]
x = df.drop(to_drop, axis=1).copy()
# # Feature Selection
# non_selected = [col for col in x.columns if col not in self.SELECTED_FEATURES]
# x.drop(non_selected, axis=1, inplace=True)
# Fill missings
x.fillna(0, inplace=True)
# # Normilize
# x = x.astype(np.float64)
# # x = pd.DataFrame(self.scaler.transform(x), columns=[
# # col for col in self.features if col in self.SELECTED_FEATURES])
# x = pd.DataFrame(self.scaler.transform(x), columns=self.features)
x = reduce_mem_usage(x)
return x
def gen_dfal():
dump_nominal_file = os.path.join(utils.cache_root, 'dfda_nominal.pkl')
dump_textual_file = os.path.join(utils.cache_root, 'dfda_textual.pkl')
if not os.path.exists(dump_nominal_file):
tr = pd.read_csv('./input/round1_ijcai_18_train_20180301.txt',
sep=' ',
dtype={'is_trade': np.uint8})
tr.is_trade = tr.is_trade.astype(np.int8)
te = pd.read_csv('./input/round1_ijcai_18_test_b_20180418.txt',
sep=' ')
da = pd.concat([tr, te], axis=0)
da = utils.add_time_fields(da)
for col in utils.nominal_cate_cols + utils.identity_cols:
da[col] = LabelEncoder().fit_transform(da[col])
for col in utils.ordinal_cate_cols:
levels = sorted(da[col].unique())
da[col] = da[col].apply(lambda x: levels.index(x)).astype(np.uint8)
del da['context_id']
del da['context_timestamp']
del da['ts']
da, _ = utils.reduce_mem_usage(da)
utils.dump_pickle(da[utils.textual_cols], dump_textual_file)
utils.dump_pickle(da.drop(utils.textual_cols, axis=1),
dump_nominal_file)
print('gen dfal ok.')
def make_features(self, df_train_input, df_test_input):
df_train_features = pd.DataFrame()
df_test_features = pd.DataFrame()
df_train_input = reduce_mem_usage(df_train_input)
df_train_input["timestamp"] = pd.to_datetime(
df_train_input["timestamp"], unit="s")
# 2020-02-06 00:00 ~ 2020-02-12 23:59
df_train_input["timestamp_bin"] = -9999
df_train_input.loc[
df_train_input["timestamp"] <= "2020-02-08 08:00:00",
"timestamp_bin"] = 0
df_train_input.loc[
(df_train_input["timestamp"] > "2020-02-08 08:00:00") &
(df_train_input["timestamp"] <= "2020-02-10 16:00:00"),
"timestamp_bin"] = 1
df_train_input.loc[df_train_input["timestamp"] > "2020-02-10 16:00:00",
"timestamp_bin"] = 2
print(df_train_input["timestamp_bin"].value_counts().sort_index())
val_position = np.zeros(len(df_train_input)).astype(np.int8)
for i_fold, bin_number in enumerate([0, 1, 2]):
is_trn = df_train_input["timestamp_bin"] != bin_number
is_val = df_train_input["timestamp_bin"] == bin_number
trn_idx = df_train_input[is_trn].index
val_idx = df_train_input[is_val].index
val_position[val_idx] = i_fold
print(f"{i_fold}fold: n_trn={len(trn_idx)}, n_val={len(val_idx)}")
df_train_features["val_position"] = val_position
print(df_train_features["val_position"].value_counts().sort_index())
return df_train_features, df_test_features
def read_data():
print('Reading files...')
calendar = pd.read_csv('./m5-forecasting-accuracy/calendar.csv')
calendar = reduce_mem_usage(calendar)
print('Calendar has {} rows and {} columns'.format(calendar.shape[0],
calendar.shape[1]))
sell_prices = pd.read_csv('./m5-forecasting-accuracy/sell_prices.csv')
sell_prices = reduce_mem_usage(sell_prices)
print('Sell prices has {} rows and {} columns'.format(
sell_prices.shape[0], sell_prices.shape[1]))
train_data = pd.read_csv(
'./m5-forecasting-accuracy/sales_train_validation.csv')
print('Sales train validation has {} rows and {} columns'.format(
train_data.shape[0], train_data.shape[1]))
return calendar, sell_prices, train_data
def melt_and_merge(calendar, sell_prices, sales_train_evaluation, submission, nrows = 55000000, merge = False):
print('\n\n Running melt and merge\n')
# melt sales data, get it ready for training
sales_train_evaluation = pd.melt(sales_train_evaluation, id_vars = ['id', 'item_id', 'dept_id', 'cat_id', 'store_id', 'state_id'], var_name = 'day', value_name = 'demand')
print('Melted sales train validation has {} rows and {} columns'.format(sales_train_evaluation.shape[0], sales_train_evaluation.shape[1]))
sales_train_evaluation = reduce_mem_usage(sales_train_evaluation)
sales_train_evaluation = sales_train_evaluation.iloc[-nrows:,:]
# seperate test dataframes
test1_rows = [row for row in submission['id'] if 'validation' in row]
test2_rows = [row for row in submission['id'] if 'evaluation' in row]
test1 = submission[submission['id'].isin(test1_rows)]
test2 = submission[submission['id'].isin(test2_rows)]
# change column names
test1.columns = ['id', 'd_1914', 'd_1915', 'd_1916', 'd_1917', 'd_1918', 'd_1919', 'd_1920', 'd_1921', 'd_1922', 'd_1923', 'd_1924', 'd_1925', 'd_1926', 'd_1927', 'd_1928', 'd_1929', 'd_1930', 'd_1931',
'd_1932', 'd_1933', 'd_1934', 'd_1935', 'd_1936', 'd_1937', 'd_1938', 'd_1939', 'd_1940', 'd_1941']
test2.columns = ['id', 'd_1942', 'd_1943', 'd_1944', 'd_1945', 'd_1946', 'd_1947', 'd_1948', 'd_1949', 'd_1950', 'd_1951', 'd_1952', 'd_1953', 'd_1954', 'd_1955', 'd_1956', 'd_1957', 'd_1958', 'd_1959',
'd_1960', 'd_1961', 'd_1962', 'd_1963', 'd_1964', 'd_1965', 'd_1966', 'd_1967', 'd_1968', 'd_1969']
# get product table
product = sales_train_evaluation[['id', 'item_id', 'dept_id', 'cat_id', 'store_id', 'state_id']].drop_duplicates()
# merge with product table
test1 = test1.merge(product, how = 'left', on = 'id')
test2['id'] = test2['id'].str.replace('_evaluation','_validation')
test2 = test2.merge(product, how = 'left', on = 'id')
test2['id'] = test2['id'].str.replace('_validation','_evaluation')
test1 = pd.melt(test1, id_vars = ['id', 'item_id', 'dept_id', 'cat_id', 'store_id', 'state_id'], var_name = 'day', value_name = 'demand')
test2 = pd.melt(test2, id_vars = ['id', 'item_id', 'dept_id', 'cat_id', 'store_id', 'state_id'], var_name = 'day', value_name = 'demand')
sales_train_evaluation['part'] = 'train'
test1['part'] = 'test1'
test2['part'] = 'test2'
data = pd.concat([sales_train_evaluation, test1, test2], axis = 0)
del sales_train_evaluation, test1, test2
print(data.shape)
# drop some calendar features
print(calendar.columns)
calendar.drop(['weekday'], inplace = True, axis = 1)
# delete test2 for now, test2 to be predicted when full data is available. For now, predict on test1.
data = data[data['part'] != 'test1']
if merge:
# notebook crash with the entire dataset (maybee use tensorflow, dask, pyspark xD)
data = pd.merge(data, calendar, how = 'left', left_on = ['day'], right_on = ['d'])
data.drop(['d', 'day'], inplace = True, axis = 1)
# get the sell price data (this feature should be very important)
data = data.merge(sell_prices, on = ['store_id', 'item_id', 'wm_yr_wk'], how = 'left')
print('Our final dataset to train has {} rows and {} columns'.format(data.shape[0], data.shape[1]))
else:
print('Merge failed!')
gc.collect()
return data
def get_features(features, cfg):
dfs = [
pd.read_feather(f'../features/{f}_{cfg.data_type}.feather')
for f in features if f is not None
]
df = pd.concat(dfs, axis=1)
if cfg.reduce:
df = reduce_mem_usage(df)
return df
def main():
# load pkls
df = read_pickles('../feats/sales_diff')
df_calendar = loadpkl('../feats/calendar.pkl')
df_sell_prices = loadpkl('../feats/sell_prices.pkl')
# merge
df = df.merge(df_calendar, on='d',how='left')
df = df.merge(df_sell_prices, on=['store_id','item_id','wm_yr_wk'],how='left')
del df_calendar, df_sell_prices
gc.collect()
# drop pre-release rows
df = df[df['wm_yr_wk']>=df['release']]
# make lag features
df = make_lags(df,28)
# label encoding
cols_string = ['item_id','dept_id','cat_id','store_id','state_id']
for c in cols_string:
df[c], _ = pd.factorize(df[c])
df[c].replace(-1,np.nan,inplace=True)
# add price features
df_grouped = df[['id','sell_price']].groupby('id')['sell_price']
df['shift_price_t1'] = df_grouped.transform(lambda x: x.shift(1))
df['price_change_t1'] = (df['shift_price_t1'] - df['sell_price']) / (df['shift_price_t1'])
df['rolling_price_max_t365'] = df_grouped.transform(lambda x: x.shift(1).rolling(365).max())
df['price_change_t365'] = (df['rolling_price_max_t365'] - df['sell_price']) / (df['rolling_price_max_t365'])
df['rolling_price_std_t7'] = df_grouped.transform(lambda x: x.rolling(7).std())
df['rolling_price_std_t30'] = df_grouped.transform(lambda x: x.rolling(30).std())
# features release date
df['release'] = df['release'] - df['release'].min()
# price momentum by month & year
df['price_momentum_m'] = df['sell_price']/df.groupby(['store_id','item_id','month'])['sell_price'].transform('mean')
df['price_momentum_y'] = df['sell_price']/df.groupby(['store_id','item_id','year'])['sell_price'].transform('mean')
# days for CustomTimeSeriesSplitter
df['d_numeric'] = df['d'].apply(lambda x: str(x)[2:]).astype(int)
# reduce memory usage
df = reduce_mem_usage(df)
# save as feather
to_feature(df, '../feats/f105')
# save feature name list
features_json = {'features':df.columns.tolist()}
to_json(features_json,'../configs/105_all_features_diff.json')
# LINE notify
line_notify('{} done.'.format(sys.argv[0]))
def main(args):
"""
input_path, output_path = '../data/train.f', f'../data/train_{PREF}.f'
"""
input_path, output_path = args
df = pd.read_feather(input_path)[col]
df['Census_PrimaryDiskTotalCapacity-m-Census_SystemVolumeTotalCapacity'] = df['Census_PrimaryDiskTotalCapacity'] - df['Census_SystemVolumeTotalCapacity']
df['Census_PrimaryDiskTotalCapacity-d-Census_SystemVolumeTotalCapacity'] = df['Census_PrimaryDiskTotalCapacity'] / df['Census_SystemVolumeTotalCapacity']
df['Census_InternalPrimaryDisplayResolution'] = df['Census_InternalPrimaryDisplayResolutionHorizontal'] * df['Census_InternalPrimaryDisplayResolutionVertical']
utils.reduce_mem_usage(df)
df.add_prefix(PREF+'_').to_feather(output_path)
return
def main(args):
input_path, output_path = args
df = pd.read_csv(input_path, dtype=utils.DTYPES)
di = {'on':0, 'audit':1}
df['PuaMode'] = df['PuaMode'].map(lambda x: di.get(x, np.nan))
# parse OsBuildLab
# wired record in test -> 17134.1*amd64fre.rs4_release.180410-1804
tmp = df['OsBuildLab'].map(lambda x: x.replace('*', '.').split('.') if isinstance(x, str) else [np.nan]*5)
print(tmp.map(len).describe())
df['OsBuildLab_major'] = tmp.map(lambda x: x[0]).astype(np.float64)
df['OsBuildLab_minor'] = tmp.map(lambda x: x[1]).astype(np.float64)
df['OsBuildLab_build'] = tmp.map(lambda x: x[2])
df['OsBuildLab_architecture'] = tmp.map(lambda x: x[3])
df['OsBuildLab_date'] = tmp.map(lambda x: x[4].split('-')[0] if isinstance(x[4], str) else np.nan).astype(np.float64)
df['OsBuildLab_time'] = tmp.map(lambda x: x[4].split('-')[1] if isinstance(x[4], str) else np.nan).astype(np.float64)
# SmartScreen
di = {
'00000000': '0', # tekiko~
'enabled': 'on', # tekiko~
'requiredadmin': 'requireadmin',
'deny': 'off', # tekiko~
'of': 'off',
'promprt': 'prompt',
}
df['SmartScreen'] = df['SmartScreen'].str.lower()
df['SmartScreen'].replace(di, inplace=True)
utils.reduce_mem_usage(df)
df.to_feather(output_path)
if 'train' in input_path:
df[['HasDetections']].to_feather('../data/target.f')
return
def add_subject_feature(df, subject):
sid2lcnum = {
i: j
for i, j in subject[['SubjectId', 'Level__SubjectId_cnum']].values
}
sid2lev = {i: j for i, j in subject[['SubjectId', 'Level']].values}
sid2cnum = {
i: j
for i, j in subject[['SubjectId', 'SubjectId_cnum']].values
}
level_cnum_oht = []
subject_meta = []
for slist in tqdm(df['SubjectId'].values, total=len(df)):
lsoht = np.zeros(len(level_cnum_list), dtype=int)
for sid in slist:
i = level_cnum_list.index(sid2lcnum[sid])
lsoht[i] += 1
snum = len(slist)
levlist = [sid2lev[sid] for sid in slist]
cnumlist = [sid2cnum[sid] for sid in slist]
level_cnum_oht.append(lsoht)
subject_meta.append(
[snum,
max(levlist),
sum(levlist),
max(cnumlist),
sum(cnumlist)])
level_subject_oht = pd.DataFrame(
level_cnum_oht, columns=level_cnum_list).add_prefix('subj_')
level_subject_oht = reduce_mem_usage(level_subject_oht)
subject_meta = pd.DataFrame(subject_meta,
columns=subject_meta_cols).add_prefix('subj_')
subject_meta = reduce_mem_usage(subject_meta)
df = pd.concat([df, level_subject_oht, subject_meta], axis=1)
return df
def create_feature(self, random_state=None, devmode=False):
trn_dir, tst_dir = self.get_feature_dir(random_state)
if os.path.exists(trn_dir) and os.path.exists(
tst_dir) and devmode is False:
print(
"There are cache dir for feature [{}] (train_cache_dir=[{}], test_cache_dir=[{}])"
.format(self.__class__.__name__, trn_dir, tst_dir))
trn_feature_files = list(Path(trn_dir).glob('*.f'))
tst_feature_files = list(Path(tst_dir).glob('*.f'))
return trn_feature_files, tst_feature_files
print(
"Start computing feature [{}] (train_cache_dir=[{}], test_cache_dir=[{}])"
.format(self.__class__.__name__, trn_dir, tst_dir))
if isinstance(self.fin, list):
# 入力ファイルがlistだった場合DataFrameのlistを渡す
df_list = [pd.read_feather(f) for f in self.fin]
feat = self.create_feature_impl(df_list, random_state)
del df_list
gc.collect()
else:
df = pd.read_feather(self.fin)
feat = self.create_feature_impl(df, random_state)
del df
gc.collect()
feat = utils.reduce_mem_usage(feat)
trn = self.trn_base.merge(feat, on=CONST.KEY,
how='left').drop(columns=CONST.KEY)
tst = self.tst_base.merge(feat, on=CONST.KEY,
how='left').drop(columns=CONST.KEY)
trn = trn.add_prefix(self.pref)
tst = tst.add_prefix(self.pref)
# Save ...
if not devmode:
os.makedirs(trn_dir)
os.makedirs(tst_dir)
utils.to_feature(trn, trn_dir)
utils.to_feature(tst, tst_dir)
trn_feature_files = list(Path(trn_dir).glob('*.f'))
tst_feature_files = list(Path(tst_dir).glob('*.f'))
return trn_feature_files, tst_feature_files
else:
return trn, tst
def transform(self, df):
with Timer('features.GroupAggregatedFeatureGenerator.transform',
verbose=self.verbose):
df_features = []
# Aggregate by Group
# for agg_type in ('mean', 'max', 'min', 'count', 'std'):
for agg_type in (
'mean',
'max',
'min',
'count',
):
df_aggregated = df.groupby(
['match_id', 'group_id'],
as_index=False)[self.features].agg(agg_type)
df_aggregated = self.restore_row_order(
df, df_aggregated, on=['match_id', 'group_id'])
agg_column_names = {
col: f'{agg_type}_group_{col}'
for col in self.features
}
df_aggregated.rename(columns=agg_column_names,
inplace=True)
# # TODO: Computational problems
# # Rank Groups by Match
# columns_to_select = list(agg_column_names.values())
# # Anyway deletes match_id
# df_ranked = df_aggregated.groupby('match_id', as_index=False)[columns_to_select].rank(pct=True)
# ranked_column_names = {col: f'rank_{col}' for col in columns_to_select}
# df_ranked.rename(columns=ranked_column_names, inplace=True)
# # Unsafe merge because of rank, which deletes match_id
# df_aggregated_ranked = pd.concat([df_aggregated, df_ranked], axis=1)
# df_features.append(df_aggregated_ranked)
# del df_aggregated, df_ranked, df_aggregated_ranked
# gc.collect()
df_aggregated = reduce_mem_usage(df_aggregated)
df_features.append(df_aggregated)
df_features = pd.concat(df_features, axis=1)
if self.created_features is None:
self.created_features = list(df_features.columns)
else:
if self.created_features == list(df_features.columns):
if self.verbose == 2:
print('Lost features')
for col in df_features.columns:
if col not in self.created_features:
if self.verbose == 2:
print(col)
return df_features
def melt_train_data(input_data):
data = pd.melt(
input_data,
id_vars=['id', 'item_id', 'dept_id', 'cat_id', 'store_id', 'state_id'],
var_name='day',
value_name='demand')
data = reduce_mem_usage(data)
print('melt_train_data has {} rows and {} columns'.format(
data.shape[0], data.shape[1]))
del input_data
gc.collect()
return data
def run(self):
# Now we have 3 sets of features
data = pd.concat([
self.load('data4'),
self.load('data2').iloc[:, 2:],
self.load('data3').iloc[:, 2:]
],
axis=1)
data = reduce_mem_usage(data)
# Let's check again memory usage
print("{:>20}: {:>8}".format(
'Full Grid', sizeof_fmt(data.memory_usage(index=True).sum())))
print('Size:', data.shape)
self.save(data)
def main(is_eval=False):
# load csv
df = pd.read_csv('../input/sell_prices.csv')
# release week ref https://www.kaggle.com/kyakovlev/m5-simple-fe
release_df = df.groupby(['store_id', 'item_id'
])['wm_yr_wk'].agg(['min']).reset_index()
release_df.columns = ['store_id', 'item_id', 'release']
# merge release week
df = df.merge(release_df, on=['store_id', 'item_id'], how='left')
# days from release
df['days_from_release'] = df['wm_yr_wk'] - df['release']
# basic aggregations
df['price_max'] = df.groupby(['store_id',
'item_id'])['sell_price'].transform('max')
df['price_min'] = df.groupby(['store_id',
'item_id'])['sell_price'].transform('min')
df['price_std'] = df.groupby(['store_id',
'item_id'])['sell_price'].transform('std')
df['price_mean'] = df.groupby(['store_id',
'item_id'])['sell_price'].transform('mean')
# normalized price
df['price_norm'] = df['sell_price'] / df['price_max']
# label encoding
df['price_nunique'] = df.groupby(['store_id', 'item_id'
])['sell_price'].transform('nunique')
df['item_nunique'] = df.groupby(['store_id', 'sell_price'
])['item_id'].transform('nunique')
# momentum
df['price_momentum'] = df['sell_price'] / df.groupby(
['store_id', 'item_id'])['sell_price'].transform(lambda x: x.shift(1))
# reduce memory usage
df = reduce_mem_usage(df)
# save pkl
save2pkl('../feats/sell_prices.pkl', df)
# LINE notify
line_notify('{} done.'.format(sys.argv[0]))
def get_train_test(conf):
df = Base.get_df(conf) # pd.DataFrame
feature_classes = [KEY_FEATURE_MAP[key] for key in conf.features]
for feature in feature_classes:
with timer(f"process {feature.__name__}"):
f = feature.get_df(conf)
if "drop_duplicate_column_on_merge" in conf.options and conf.options.drop_duplicate_column_on_merge:
cols_to_drop = [
c for c in f.columns
if (c in df.columns) and (c != 'SK_ID_CURR')
]
if cols_to_drop:
print(f"drop columns: {cols_to_drop}")
f = f.drop(cols_to_drop, axis=1)
if "reduce_mem_usage" in conf.options and conf.options.reduce_mem_usage:
with timer("reduce_mem_usaga"):
f = reduce_mem_usage(f)
df = df.merge(f, how='left', on='SK_ID_CURR')
del f
gc.collect()
if "stacking_features" in conf:
StackingFeaturesWithPasses.set_result_dirs(conf.stacking_features)
f = StackingFeaturesWithPasses.get_df(conf)
df = df.merge(f, how='left', on='SK_ID_CURR')
if "drop_features_list_file" in conf.options:
with open(conf.options.drop_features_list_file, "r") as fp:
line = fp.read()
feature_to_drop = eval(line)
print(f"drop columns in {conf.options.drop_features_list_file}")
df = df.drop(feature_to_drop, axis=1)
if "clean_data" in conf.options and conf.options.clean_data:
with timer("clean_data"):
df = clean_data(df)
train_df = df[df['TARGET'].notnull()].copy()
test_df = df[df['TARGET'].isnull()].copy()
del df
gc.collect()
return train_df, test_df
def gen_target_aggs(col, updata=False):
feat_path = os.path.join(feats_root, 'target_aggs_{}.pkl'.format(col))
if os.path.exists(feat_path) and updata == False:
print('Found ' + feat_path)
else:
print('Generating ' + feat_path)
dfal = get_nominal_dfal()[[col, 'da', 'is_trade']]
dmax = dfal.da.max()
dmin = dfal.da.min()
for da in sorted(dfal.da.unique())[1:]:
for win_das in [1, 2, 3]:
if da - win_das < dmin:
continue
dfal = gen_target_agg_features(dfal, da, win_das, col)
dfal = dfal.loc[dfal.da > 17, :]
dfal.drop(['is_trade'], inplace=True, axis=1)
dfal.drop_duplicates([col, 'da'], inplace=True)
dfal.fillna(0, inplace=True)
dfal, _ = reduce_mem_usage(dfal)
dump_pickle(dfal, feat_path)
def input_to_feather():
files = [f for f in os.listdir(CONST.INDIR) if '.csv' in f]
for f in files:
# if os.path.exists(os.path.join(CONST.INDIR, f.split('.')[0] + '.feather')):
# print("File '{}' is already exist".format(os.path.join(CONST.INDIR, f.split('.')[0] + '.feather')))
# else:
print("to feather '{}'...".format(f))
df = pd.read_csv(os.path.join(CONST.INDIR, f))
# datetimeに変換したいカラムがある
if 'purchase_date' in df.columns:
df['purchase_date'] = pd.to_datetime(df['purchase_date'])
if 'first_active_month' in df.columns:
df['first_active_month'] = pd.to_datetime(df['first_active_month'])
# Y, Nをbinarizeしたいカラムがある
if 'authorized_flag' in df.columns or 'category_1' in df.columns or 'category_4' in df.columns:
df = binarize(df)
df = reduce_mem_usage(df)
df.to_feather(os.path.join(CONST.INDIR, f.split('.')[0] + '.feather'))