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train['Complete_Date'] = train['Date'].astype('datetime64[ns]') test['Complete_Date'] = test['Date'].astype('datetime64[ns]') month = [int(el[5:7])for el in list(train['Date'].values)] day = [int(el[8:10])for el in list(train['Date'].values)] month_test = [int(el[5:7])for el in list(test['Date'].values)] day_test = [...
transformed_dataset = transform_dataset(dataset) transformed_dataset.info()
Titanic - Machine Learning from Disaster
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train['Province_State'].fillna('',inplace=True) test['Province_State'].fillna('',inplace=True) train['Province_State']=train['Province_State'].astype(str) test['Province_State']=test['Province_State'].astype(str) y= train['Country_Region']+train['Province_State'] y= pd.DataFrame(y, columns= ['Place']) y_test= test...
X = transformed_dataset.drop(['Survived'], axis=1) Y = dataset['Survived']
Titanic - Machine Learning from Disaster
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Country_df=train["Place"] ConfirmedCases_df=train["ConfirmedCases"] Country_df.to_numpy() ConfirmedCases_df.to_numpy() Country=Country_df[0] NbDay = pd.DataFrame(columns=['NbDay']) day=0 count=0 for x in train["Month"]: if(ConfirmedCases_df[count]==0): NbDay = NbDay.append({'NbDay': int(0)}, ignore_index=True) count=...
X_train, X_test, Y_train, Y_test = model_selection.train_test_split(X, Y, test_size = 0.2, random_state = 25 )
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train=train[['Place','Country_Region','NbDay','ConfirmedCases','Fatalities']] test=test[['Place','Country_Region','NbDay','ForecastId']]<count_unique_values>
model = tree.DecisionTreeClassifier(max_depth=6,random_state=25 )
Titanic - Machine Learning from Disaster
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country_array=train['Place'].to_numpy() def distinct_values(country_array): liste=[] liste.append(country_array[0]) for i in range(1,len(country_array)) : if country_array[i]!=country_array[i-1]: liste.append(country_array[i]) return liste Countries_liste=distinct_values(country_array) len(Countries_liste )<categori...
model.fit(X_train,Y_train) print('train score = ', model.score(X_train,Y_train), ' test score = ', model.score(X_test,Y_test))
Titanic - Machine Learning from Disaster
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def exponentiate_alpha(column,v): array=column.to_numpy() string='NbDay'+str(v) array=np.power(v,array) frame=pd.DataFrame(array, columns=[string]) return frame def product(column1,column2,number): array=column1.to_numpy() array2=column2.to_numpy() string='Product'+str(number) array=np.multiply(array,array2) frame...
test = pd.read_csv('.. /input/titanic/test.csv') test.info()
Titanic - Machine Learning from Disaster
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df1=exponentiate_alpha(train['NbDay'],1.0001 )<concatenate>
passenger_id = test['PassengerId']
Titanic - Machine Learning from Disaster
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df2=product(df1,train['NbDay'],1 )<feature_engineering>
transformed_test = transform_dataset(test) transformed_test.info()
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train['NbDay_exp']=df1 train['Product']=df12<choose_model_class>
Y_predict = model.predict(transformed_test) Y_p = pd.DataFrame(Y_predict, columns=['Survived']) Y_p
Titanic - Machine Learning from Disaster
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model = xgboost.XGBRegressor(colsample_bytree=0.4, gamma=0, learning_rate=0.07, max_depth=5, min_child_weight=1.5, n_estimators=10000, reg_alpha=0.75, reg_lambda=0.45, subsample=0.6, seed=42, objective='reg:squarederror', eval_metric='rmse' )<predict_on_test>
res = pd.concat([passenger_id, Y_p], axis=1) res
Titanic - Machine Learning from Disaster
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ConfirmedCasesPredictions=[] i=1 for country in Countries_liste: train_=train[train['Place']==country][['NbDay']] y_=train[train['Place']==country]['ConfirmedCases'] train_=train_.astype(float) test_=test[test['Place']==country][['NbDay']] test_=test_.astype(float) model.fit(train_, y_) y_pred = model.predict(test_)...
res.to_csv('res.csv', index=None )
Titanic - Machine Learning from Disaster
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ConfirmedCases=np.array(ConfirmedCasesPredictions) ConfirmedCases=pd.DataFrame(ConfirmedCases, columns=['ConfirmedCases']) test['ConfirmedCases']=ConfirmedCases<predict_on_test>
eli5.explain_weights_sklearn(model, feature_names=X_train.columns.values )
Titanic - Machine Learning from Disaster
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ConfirmedFatalities=[] for country in Countries_liste: train_=train[train['Place']==country][['NbDay','ConfirmedCases']] y_=train[train['Place']==country]['Fatalities'] train_=train_.astype(float) test_=test[test['Place']==country][['NbDay','ConfirmedCases']] test_=test_.astype(float) model.fit(train_, y_) y_pred = ...
raw_data = pd.read_csv('.. /input/train.csv') print(raw_data.columns) raw_data.head() print(raw_data.groupby(['Pclass', 'Sex', 'Embarked'])['Survived'].mean()) print(raw_data.Cabin.nunique()) print(raw_data.isnull().sum())
Titanic - Machine Learning from Disaster
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Fatalities=np.array(ConfirmedFatalities) Fatalities=pd.DataFrame(Fatalities, columns=['Fatalities']) test['Fatalities']=Fatalities<save_to_csv>
def cabinMap(elem): d = {'A': 0, 'B': 1, 'C': 2, 'D': 3, 'E': 4, 'F': 5, 'G': 6, 'T': 7, 'N': 8} elem = d[elem[0]] return elem
Titanic - Machine Learning from Disaster
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sub = pd.DataFrame() sub['ForecastId'] = test['ForecastId'] sub['ConfirmedCases'] = test['ConfirmedCases'] sub['Fatalities'] = test['Fatalities'] sub.to_csv('submission.csv', index=False )<load_from_csv>
y = raw_data.Survived features = ['Pclass', 'Sex', 'Embarked'] X = raw_data[features].copy() X.groupby('Sex' ).count()
Titanic - Machine Learning from Disaster
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train = pd.read_csv('.. /input/covid19-global-forecasting-week-4/train.csv') train['Date'] = pd.to_datetime(train['Date']) train['Date'].max()<load_from_csv>
def reformat(x): d_sex = {'female': 0, 'male': 1} d_emb = {'C': 0, 'Q': 1, 'S': 2, '3':3} x['Sex'] = [d_sex[sex] for sex in x['Sex'].values] x['Embarked'] = x['Embarked'].fillna('3') x['Embarked'] = [d_emb[elem] for elem in x['Embarked'].values] try: x['Cabin'] = x['Cabin'].fillna('N') x['Cabin'] = x['Cabin'].apply(c...
Titanic - Machine Learning from Disaster
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test = pd.read_csv('.. /input/covid19-global-forecasting-week-4/test.csv') test['Date'] = pd.to_datetime(test['Date']) test['Date'].max()<set_options>
train_X, val_X, train_y, val_y = train_test_split(X, y, random_state=1 )
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def BLEND_WEEK4_1() : pd.options.display.max_rows = 500 pd.options.display.max_columns = 500 %matplotlib inline def rmse(yt, yp): return np.sqrt(np.mean(( yt-yp)**2)) class CovidModel: def __init__(self): pass def predict_first_day(self, date): return None def predict_next_day(self, yesterday_pred_df): return None clas...
scaler = StandardScaler() train = scaler.fit_transform(train_X) valid = scaler.transform(val_X) print(train.shape) print(valid.shape )
Titanic - Machine Learning from Disaster
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def BLEND_WEEK4_2() : %matplotlib inline %config InlineBackend.figure_format = 'retina' def giba_model() : def exponential(x, a, k, b): return a*np.exp(x*k)+ b def rmse(yt, yp): return np.sqrt(np.mean(( yt-yp)**2)) train = pd.read_csv('.. /input/covid19-global-forecasting-week-4/train.csv') train['Date'] = pd.to_datet...
model = RandomForestClassifier(random_state=1) model.fit(train,train_y) preds_val = model.predict(valid) print("Accuracy:") print(sum(val_y == preds_val)/len(val_y))
Titanic - Machine Learning from Disaster
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sub1 = pd.read_csv("submission1.csv") sub2 = pd.read_csv("submission2.csv") print(np.corrcoef(sub1['ConfirmedCases'], sub2['ConfirmedCases'])[0][1]) print(np.corrcoef(sub1['Fatalities'] , sub2['Fatalities'])[0][1]) sub1['ConfirmedCases'] = 0.5*sub1['ConfirmedCases'] + 0.5*sub2['ConfirmedCases'] sub1['Fatalities'] =...
cross_val_score(model , train , train_y , cv=5 )
Titanic - Machine Learning from Disaster
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import os<set_options>
def applyModel(X_test): X = X_test[features].copy() reformat(X) X = scaler.transform(X) preds = model.predict(X) return preds
Titanic - Machine Learning from Disaster
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%matplotlib inline<import_modules>
X_test = pd.read_csv('.. /input/test.csv') preds = applyModel(X_test) output = pd.DataFrame({'PassengerId': X_test.PassengerId, 'Survived': preds}) output.to_csv('submission.csv', index=False )
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import lightgbm as lgb<import_modules>
raw_data = pd.read_csv('.. /input/train.csv') raw_data.head()
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from tqdm.notebook import tqdm<import_modules>
print(raw_data.columns) print(raw_data.isnull().sum() )
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from sklearn.preprocessing import LabelEncoder<load_from_csv>
raw_data.groupby(['Pclass', 'Sex', 'Embarked'])['Survived'].mean()
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train_df = pd.read_csv(".. /input/covid19-global-forecasting-week-4/train.csv") test_df = pd.read_csv(".. /input/covid19-global-forecasting-week-4/test.csv") submission_df = pd.read_csv(".. /input/covid19-global-forecasting-week-4/submission.csv" )<load_from_csv>
y = raw_data.Survived features = ['Pclass', 'Sex', 'Embarked'] X = raw_data[features].copy()
Titanic - Machine Learning from Disaster
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region_metadata = pd.read_csv(".. /input/covid19-forecasting-metadata/region_metadata.csv" )<feature_engineering>
def reformat(x): d_sex = {'female': 0, 'male': 1} d_emb = {'C': 0, 'Q': 1, 'S': 2, '3':3} x['Sex'] = [d_sex[sex] for sex in x['Sex'].values] x['Embarked'] = x['Embarked'].fillna('3') x['Embarked'] = [d_emb[elem] for elem in x['Embarked'].values] reformat(X) X.head()
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def transform_geo_location(df): lat = df.lat.values lon = df.lon.values df["lat_sin"] = np.sin(2 * np.pi * lat / 360) df["lat_cos"] = np.cos(2 * np.pi * lat / 360) df["lon_sin"] = np.sin(2 * np.pi * lon / 360) df["lon_cos"] = np.cos(2 * np.pi * lon / 360) return df<categorify>
scaler = StandardScaler() X_scaled = scaler.fit_transform(X )
Titanic - Machine Learning from Disaster
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region_metadata = transform_geo_location(region_metadata) geo_location_columns = ["lat_sin", "lat_cos", "lon_sin", "lon_cos"]<load_from_csv>
model = RandomForestClassifier() model.fit(X_scaled,y) cross_val_score(model , X_scaled , y , cv=5 )
Titanic - Machine Learning from Disaster
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country_data = pd.read_csv(".. /input/countries-of-the-world/countries of the world.csv") country_data.Country = country_data.Country.apply(lambda c: c.rstrip(" ")) country_data.rename( columns={ "Country": "Country_Region", }, inplace=True )<define_variables>
def applyModel(X_test): X = X_test[features].copy() reformat(X) X = scaler.transform(X) preds = model.predict(X) return preds
Titanic - Machine Learning from Disaster
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country_meta_columns = [ 'Coastline(coast/area ratio)', 'Net migration', 'Infant mortality(per 1000 births)', 'GDP($ per capita)', 'Literacy(%)', 'Phones(per 1000)', 'Arable(%)', 'Crops(%)', 'Other(%)', 'Climate', 'Birthrate', 'Deathrate', 'Agriculture', 'Industry', 'Service' ]<data_type_conversions>
X_test = pd.read_csv('.. /input/test.csv') preds = applyModel(X_test) output = pd.DataFrame({'PassengerId': X_test.PassengerId, 'Survived': preds}) output.to_csv('submission.csv', index=False )
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for col in country_meta_columns: country_data[col] =( country_data[col] .fillna(-1000) .apply(lambda v: v.replace(",", ".")if isinstance(v, str)else v) .astype(np.float32) )<load_from_csv>
import numpy as np import pandas as pd import seaborn as sns import matplotlib.pyplot as plt
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lockdown_meta_df = pd.read_csv(".. /input/covid19-lockdown-dates-by-country/countryLockdowndates.csv") lockdown_meta_df.rename( columns={ "Country/Region": "Country_Region", "Province": "Province_State", "Date": "LockdownDate", "Type": "LockdownType" }, inplace=True ) lockdown_meta_df.drop("Reference", axis=1, inpl...
df_train = pd.read_csv(".. /input/train.csv") df_test = pd.read_csv(".. /input/test.csv" )
Titanic - Machine Learning from Disaster
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train_df = train_df.merge(lockdown_meta_df, on=["Province_State", "Country_Region"], how="left") train_df = train_df.merge(country_data, on=["Country_Region"], how="left" )<categorify>
df_train['Survived'].value_counts()
Titanic - Machine Learning from Disaster
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train_df["days_since_lockdown"] = np.clip( (pd.to_datetime(train_df.Date)- pd.to_datetime(train_df.LockdownDate)).dt.days, a_min=-1, a_max=None ) train_df["lockdown_type"] = [ t if d >= 0 else "None" for t, d in zip(train_df.LockdownType, train_df.days_since_lockdown) ] lockdown_type_encoder = LabelEncoder().fit(tra...
df_train[['Pclass','Survived']].groupby(['Pclass'] ).mean()
Titanic - Machine Learning from Disaster
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train_df["ConfirmedCases"] = np.log1p(train_df.ConfirmedCases) train_df["Fatalities"] = np.log1p(train_df.Fatalities )<categorify>
df_test['Survived'] = 0 train_test = df_train.append(df_test )
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def extract_region(df): return( df.Country_Region + df.Province_State.fillna("" ).apply(lambda s: " + " + s if s else s) ) region_encoder = LabelEncoder().fit(extract_region(train_df)) train_df["region_id"] = region_encoder.transform(extract_region(train_df)) test_df["region_id"] = region_encoder.transform(extract_re...
train_test = pd.get_dummies(train_test,columns=['Pclass']) train_test.head()
Titanic - Machine Learning from Disaster
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stats_df = train_df[["Fatalities", "ConfirmedCases", "region_id"]].groupby("region_id" ).sum() stats_df["fatalities_to_cases"] = stats_df.Fatalities - stats_df.ConfirmedCases stats_df.drop(["Fatalities", "ConfirmedCases"], axis=1, inplace=True) train_df = train_df.merge(stats_df, on="region_id", how="left") stats_col...
train_test['Sex'] = pd.factorize(train_test['Sex'])[0] train_test.head()
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def extract_country_from_region(region): if "+" in region: country, state = region.split(" + ") else: country = region return country region_to_country = dict( zip( range(len(region_encoder.classes_)) , map(extract_country_from_region, region_encoder.classes_) ) )<merge>
train_test['SibSp_Parch'] = train_test['SibSp'] + train_test['Parch'] train_test = train_test.drop(['SibSp', 'Parch'], axis=1) train_test.head()
Titanic - Machine Learning from Disaster
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train_df = train_df.merge(region_metadata, on="region_id", how="left" )<define_variables>
train_test = pd.get_dummies(train_test,columns=["Embarked"]) train_test.head()
Titanic - Machine Learning from Disaster
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meta_columns = [ "density", "population", "area" ]<define_variables>
train_test.loc[train_test["Age"].isnull() ,"age_nan"] = 1 train_test.loc[train_test["Age"].notnull() ,"age_nan"] = 0 train_test = pd.get_dummies(train_test,columns=['age_nan']) train_test.head()
Titanic - Machine Learning from Disaster
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categorical_columns = [ "region_id", "lockdown_type" ]<feature_engineering>
train_test = train_test.drop(['Cabin', 'Ticket', 'Name', 'PassengerId'], axis=1) train_test.head()
Titanic - Machine Learning from Disaster
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def compute_historical_features(df, target_column, past_horizon, create_target=True): features = dict() for col in meta_columns + country_meta_columns: features[col] = df[col].unique().item() for col in geo_location_columns: features[col] = df[col].unique().item() for col in stats_columns: features[col] = df[col].uniqu...
train_test = train_test.fillna(0 )
Titanic - Machine Learning from Disaster
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def prepare_datasets( train_df, last_train_date, target_column, train_start_offset=50, step=1, ): dates = train_df.Date.unique() train_dates = dates[dates <= last_train_date] val_dates = dates[dates > last_train_date] train_features = [] train_subdf = train_df[train_df.Date <= last_train_date] val_subdf = train_df[tr...
train_data = train_test[:891] test_data = train_test[891:] train_data_X = train_data.drop(['Survived'],axis=1) train_data_Y = train_data['Survived'] test_data_X = test_data.drop(['Survived'],axis=1 )
Titanic - Machine Learning from Disaster
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def autoregressive_predict(model, dates, df, target_column, past_horizon): n_regions = len(region_encoder.classes_) original_size = len(df) future_df = pd.DataFrame({ "Date": np.repeat(dates, repeats=n_regions), "region_id": np.tile(np.arange(n_regions), len(dates)) }) future_df["Country_Region"] = future_df.region_...
clf = RandomForestClassifier(n_estimators=150,min_samples_leaf=2,max_depth=6,oob_score=True) clf.fit(train_data_X,train_data_Y) clf.oob_score_ df_test["Survived"] = clf.predict(test_data_X) result = df_test[['PassengerId','Survived']].set_index('PassengerId') result.to_csv('result1.csv' )
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def target_metric(actual, predicted): return np.sqrt(((actual - predicted)** 2 ).mean() )<create_dataframe>
train = pd.read_csv('.. /input/train.csv') test = pd.read_csv('.. /input/test.csv' )
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def train_booster( train_features_df, target_column, categorical_columns, epochs=20, train_start_offset=50, val_df=None ): train_dataset = lgb.Dataset( train_features_df.drop([target_column], axis=1), train_features_df[target_column], free_raw_data=False, categorical_feature=categorical_columns ) params = { 'boost...
train = pd.read_csv('.. /input/train.csv') test = pd.read_csv('.. /input/test.csv' )
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train_start_offset = 70 epochs = 10 test_dates = test_df.Date[test_df.Date > train_df.Date.max() ].unique() merge_columns = ["Date", "region_id"] for target_column in ["ConfirmedCases", "Fatalities"]: print() print("Working on column", target_column) print() train_features_df, train_subdf, val_subdf = prepare_datasets...
print("Check NaN values in Test set:") isnull = test.isnull().sum().reset_index() isnull.columns = ['Feature', 'Total_null'] total_null = isnull[isnull['Total_null']>0] total_null
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submission_df.to_csv("submission.csv", index=False )<set_options>
print("Check NaN values in Train set:") isnull = train.isnull().sum().reset_index() isnull.columns = ['Feature', 'Total_null'] total_null = isnull[isnull['Total_null']>0] total_null
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pd.set_option('display.max_columns', 100) warnings.filterwarnings('ignore') df_train = pd.read_csv(".. /input/covid19-global-forecasting-week-4/train.csv") print(df_train.shape) df_train.head() df_test = pd.read_csv(".. /input/covid19-global-forecasting-week-4/test.csv") print(df_test.shape) df_test.head() df_tra...
traintest = pd.concat([train, test], axis=0, sort=False )
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gc.collect()<load_from_csv>
traintest[traintest.duplicated() ].index
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pd.set_option('display.max_columns', 100) warnings.filterwarnings('ignore') df_train = pd.read_csv(".. /input/covid19-global-forecasting-week-4/train.csv") print(df_train.shape) df_train.head() df_test = pd.read_csv(".. /input/covid19-global-forecasting-week-4/test.csv") print(df_test.shape) df_test.head() df_tra...
pd.concat([traintest.nunique(dropna=False), traintest.count() , traintest.nunique() /traintest.count() ], axis=1 )
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gc.collect()<define_variables>
train = train.replace('male', 0) train = train.replace('female', 1) test = test.replace('male', 0) test = test.replace('female', 1 )
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BAGS = 25 SEED = 1234 SET_FRAC = 0.01 TRUNCATED = False DROPS = True PRIVATE = True USE_PRIORS = False SUP_DROP = 0.0 ACTIONS_DROP = 0.0 PLACE_FRACTION = 1.0 LT_DECAY_MAX = 0.3 LT_DECAY_MIN = -0.4 SINGLE_MODEL = False MODEL_Y = 'agg_dff' pd.options.display.float_format = '{:.8}'.format plt.rcParams["figure.figsize"] =(...
train['is_train'] = 1 train['origin_index'] = train.index test['is_train'] = 0 test['origin_index'] = test.index traintest = pd.concat([train, test], axis=0, sort=False )
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gc.collect()<set_options>
min_max_scaler = preprocessing.MinMaxScaler(feature_range=(0,1)) num_cols = ['Age', 'Fare', 'SibSp_parch'] cat_cols = ['Sex', 'Cabin', 'Embarked', 'Pclass', 'SibSp', 'Parch'] train['SibSp_parch'] = train.SibSp + train.Parch test['SibSp_parch'] = test.SibSp + train.Parch scaled_train = train[num_cols+cat_cols].copy() sc...
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!pip install tensorflow_addons %matplotlib inline %config InlineBackend.figure_format = 'retina' def swishE(x): beta = 1.75 return beta * x * tf.keras.backend.sigmoid(x) def swish(x): return x * tf.keras.backend.sigmoid(x) def phrishII(x): return x*tf.keras.backend.tanh(1.75 * x * tf.keras.backend.sigmoid(x)) def mis...
from sklearn.model_selection import train_test_split from sklearn.linear_model import LogisticRegression from sklearn.svm import SVC from sklearn.linear_model import LinearRegression
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def get_ridgeCV_sub(save_oof=False, save_public_test=False): train = pd.read_csv('.. /input/covid19-global-forecasting-week-4/train.csv') train['Province_State'].fillna('', inplace=True) train['Date'] = pd.to_datetime(train['Date']) train['day'] = train.Date.dt.dayofyear train['geo'] = ['_'.join(x)for x in zip(train...
x_train, X_val, Y_train, Y_val = train_test_split(X_train, y_train, test_size=0.2, random_state=0 )
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gc.collect()<load_from_csv>
model_svm_linear = SVC(kernel='linear', C=1 ).fit(x_train, Y_train) print("Training score: ", model_svm_linear.score(x_train, Y_train)) print("Validation score: ", model_svm_linear.score(X_val, Y_val))
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def get_nn_sub() : df = pd.read_csv(".. /input/covid19-global-forecasting-week-4/train.csv") sub_df = pd.read_csv(".. /input/covid19-global-forecasting-week-4/test.csv") coo_df = pd.read_csv(".. /input/covid19week1/train.csv" ).rename(columns={"Country/Region": "Country_Region"}) coo_df = coo_df.groupby("Country_Reg...
model_svm_sigmoid = SVC(kernel='sigmoid' ).fit(x_train, Y_train) print("Training score: ", model_svm_sigmoid.score(x_train, Y_train)) print("Validation score: ", model_svm_sigmoid.score(X_val, Y_val))
Titanic - Machine Learning from Disaster
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gc.collect()<load_from_csv>
model_svm_rbf = SVC(kernel='rbf' ).fit(x_train, Y_train) print("Training score: ", model_svm_rbf.score(x_train, Y_train)) print("Validation score: ", model_svm_rbf.score(X_val, Y_val))
Titanic - Machine Learning from Disaster
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def get_nn_sub() : df = pd.read_csv(".. /input/covid19-global-forecasting-week-4/train.csv") sub_df = pd.read_csv(".. /input/covid19-global-forecasting-week-4/test.csv") coo_df = pd.read_csv(".. /input/covid19week1/train.csv" ).rename(columns={"Country/Region": "Country_Region"}) coo_df = coo_df.groupby("Country_Reg...
model_logistic = LogisticRegression(random_state=0, solver='lbfgs', multi_class='multinomial' ).fit(x_train, Y_train) print("Training score: ", model_logistic.score(x_train, Y_train)) print("Validation score: ", model_logistic.score(X_val, Y_val))
Titanic - Machine Learning from Disaster
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gc.collect()<set_options>
model = SVC(kernel='linear', C=1 ).fit(X_train, y_train) print("Training score: ", model_svm_linear.score(X_train, y_train)) class_predict = model.predict(X_test )
Titanic - Machine Learning from Disaster
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%matplotlib inline %config InlineBackend.figure_format = 'retina' def get_cpmp_sub(save_oof=False, save_public_test=False): train = pd.read_csv('.. /input/covid19-global-forecasting-week-4/train.csv') train['Province_State'].fillna('', inplace=True) train['Date'] = pd.to_datetime(train['Date']) train['day'] = train....
test_ID = test['PassengerId']
Titanic - Machine Learning from Disaster
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gc.collect()<load_from_csv>
temp = {'PassengerID': test_ID, 'Survived': class_predict} result = pd.DataFrame(temp )
Titanic - Machine Learning from Disaster
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def get_nn_sub3() : df = pd.read_csv(".. /input/covid19-global-forecasting-week-4/train.csv") sub_df = pd.read_csv(".. /input/covid19-global-forecasting-week-4/test.csv") coo_df = pd.read_csv(".. /input/covid19week1/train.csv" ).rename(columns={"Country/Region": "Country_Region"}) coo_df = coo_df.groupby("Country_Re...
result.to_csv('result.csv', index=False )
Titanic - Machine Learning from Disaster
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gc.collect()<load_from_csv>
from keras.models import Sequential from keras.layers import Dense, Activation, Dropout from keras.optimizers import Adam from keras.regularizers import l2 from keras.callbacks import EarlyStopping from sklearn import preprocessing
Titanic - Machine Learning from Disaster
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train = pd.read_csv('.. /input/covid19-global-forecasting-week-4/train.csv') train['Date'] = pd.to_datetime(train['Date']) def dealing_with_null_values(dataset): dataset = dataset for i in dataset.columns: replace = [] data = dataset[i].isnull() count = 0 for j,k in zip(data,dataset[i]): if(j==True): count = count+1 ...
model_neuron = Sequential() model_neuron.add(Dense(output_dim=256, input_shape=(X_train.shape[1],), activation='relu')) model_neuron.add(Dropout(0.5)) model_neuron.add(Dense(output_dim=128, input_shape=(X_train.shape[1],), activation='relu')) model_neuron.add(Dropout(0.5)) model_neuron.add(Dense(output_dim=64, input_sh...
Titanic - Machine Learning from Disaster
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gc.collect()<prepare_output>
history = model_neuron.fit(X_train, y_train, nb_epoch=10000, validation_split=0.2, callbacks=[EarlyStopping(patience=10)] )
Titanic - Machine Learning from Disaster
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buscc = output["ConfirmedCases"] busf = output["Fatalities"] sdfcc = sub_df["ConfirmedCases"] sdff = sub_df["Fatalities"] sdfcc2 = sub_df20["ConfirmedCases"] sdff2 = sub_df20["Fatalities"] sdfcc3 = sub_df40["ConfirmedCases"] sdff3 = sub_df40["Fatalities"] sdfcc4 = df_sub1["ConfirmedCases"] sdff4 = df_sub1["Fatalities"]...
model_neuron = Sequential() model_neuron.add(Dense(output_dim=256, input_shape=(X_train.shape[1],), activation='relu')) model_neuron.add(Dense(output_dim=128, input_shape=(X_train.shape[1],), activation='relu')) model_neuron.add(Dense(output_dim=64, input_shape=(X_train.shape[1],), activation='relu')) model_neuron.add(...
Titanic - Machine Learning from Disaster
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pd.set_option('display.max_rows',500) pd.set_option('display.max_columns',900) warnings.filterwarnings('ignore') <load_from_csv>
class_predict = model_neuron.predict_classes(X_test) class_predict = class_predict.reshape(( class_predict.shape[0],)) test_ID = test['PassengerId'] temp = {'PassengerID': test_ID, 'Survived': class_predict} result = pd.DataFrame(temp) result.to_csv('result_neuron.csv', index=False )
Titanic - Machine Learning from Disaster
1,819,258
<feature_engineering><EOS>
cabins_list = traintest.Cabin.fillna('NaN') cabins = [] for value in cabins_list: if value != 'NaN': cabins += value.split(' ') unique_cabins = set(cabins) print("Number unique in cabins: ", len(unique_cabins)) print("Number of Cabins: ", len(cabins)) print("Number of nan in Cabin: ", traintest.Cabin.isnull().sum())...
Titanic - Machine Learning from Disaster
12,485,520
<SOS> metric: categorizationaccuracy Kaggle data source: titanic-machine-learning-from-disaster<feature_engineering>
!pip install seaborn==0.11.0 %matplotlib inline py.init_notebook_mode(connected=True) warnings.filterwarnings('ignore') random.seed(1455) np.random.seed(1455) sns.set_theme() clear_output()
Titanic - Machine Learning from Disaster
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df['Mortalidade']=np.where(df['ConfirmedCases']==0,0,df['Fatalities']/df['ConfirmedCases']) df[(df['Country_Region']=='Brazil')&(df['Id']>0)].tail()<feature_engineering>
train = pd.read_csv('.. /input/titanic/train.csv') test = pd.read_csv('.. /input/titanic/test.csv') PassengerId = test['PassengerId'] test.head(5 )
Titanic - Machine Learning from Disaster
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df['Province_State'].fillna('Vazio',inplace=True) df['Local']=np.where(df['Province_State']== 'Vazio',df['Country_Region'],df['Country_Region']+'/'+df['Province_State'] )<data_type_conversions>
train['Ticket_type'] = train['Ticket'].apply(lambda x: x[0:4]) train['Ticket_type'] = train['Ticket_type'].astype('category') train['Ticket_type'] = train['Ticket_type'].cat.codes test['Ticket_type'] = test['Ticket'].apply(lambda x: x[0:4]) test['Ticket_type'] = test['Ticket_type'].astype('category') test['Ticket_t...
Titanic - Machine Learning from Disaster
12,485,520
df_test=df[df['ForecastId']>0] df['Date']=df['Date'].astype('str') df=df[df['Id']>0] df['ConfirmedCases'].fillna(0,inplace=True) print(df.dtypes) df[(df['Local']=='Brazil')].tail()<feature_engineering>
train['IsAlone'] = 0 train.loc[train['FamilySize'] == 1, 'IsAlone'] = 1 test['IsAlone'] = 0 test.loc[test['FamilySize'] == 1, 'IsAlone'] = 1
Titanic - Machine Learning from Disaster
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df_f=df[df['Month']>2] df0=df[(df['Day_num'].between(0,14)) ] df1=df[(df['Day_num'].between(1,15)) ] df2=df[(df['Day_num'].between(2,16)) ] df3=df[(df['Day_num'].between(3,17)) ] df4=df[(df['Day_num'].between(4,18)) ] df5=df[(df['Day_num'].between(5,19)) ] df6=df[(df['Day_num'].between(6,20)) ] df7=df[(df['Day_num'].be...
train['Fare'] = train['Fare'].fillna(train['Fare'].median()) test['Fare'] = test['Fare'].fillna(train['Fare'].median()) train['CategoricalFare'] = pd.qcut(train['Fare'], 4 )
Titanic - Machine Learning from Disaster
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def make_decay(df): dft=df.pivot_table(index='Local',columns='Date',values='ConfirmedCases' ).reset_index() Lista_colunas=['Local','dia_01','dia_02','dia_03','dia_04','dia_05','dia_06','dia_07', 'dia_08','dia_09','dia_10','dia_11','dia_12','dia_13','dia_14','dia_15'] dft_copy=dft.copy() dft.columns=Lista_colunas C1=np....
def get_title(name): title_search = re.search('([A-Za-z]+)\.', name) if title_search: return title_search.group(1) return "" for dataset in whole_data: dataset['Title'] = dataset['Name'].apply(get_title) for dataset in whole_data: dataset['Title'] = dataset['Title'].replace(['Lady', 'Countess','Capt', 'Col','Don', '...
Titanic - Machine Learning from Disaster
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dfmodel.columns = ["".join(c if c.isalnum() else "_" for c in str(x)) for x in dfmodel.columns] dftr.columns = ["".join(c if c.isalnum() else "_" for c in str(x)) for x in dftr.columns] dfmodel.fillna(-99,inplace=True) dftr.fillna(-99,inplace=True) resposta=dftr['Decay'] dfteste_cat= dftr.drop(columns=['Crescimento_1...
for dataset in whole_data: dataset.loc[ dataset['Fare'] <= 7.91, 'Fare'] = 0 dataset.loc[(dataset['Fare'] > 7.91)&(dataset['Fare'] <= 14.454), 'Fare'] = 1 dataset.loc[(dataset['Fare'] > 14.454)&(dataset['Fare'] <= 31), 'Fare'] = 2 dataset.loc[ dataset['Fare'] > 31, 'Fare'] = 3 dataset['Fare'] = dataset['...
Titanic - Machine Learning from Disaster
12,485,520
import catboost from catboost import CatBoostRegressor, Pool<define_variables>
train['Embarked'] = train['Embarked'].fillna('S') test['Embarked'] = test['Embarked'].fillna('S') train['Embarked'] = train['Embarked'].map({'S': 0, 'C': 1, 'Q': 2} ).astype(int) test['Embarked'] = test['Embarked'].map({'S': 0, 'C': 1, 'Q': 2} ).astype(int) fig = sns.displot(data=train, x="Embarked", hue="Survived"...
Titanic - Machine Learning from Disaster
12,485,520
train_pool = Pool(X_train, label=y_train ) val_pool = Pool(X_test, label=y_test ) test_pool = Pool(dfteste, label=resposta )<train_model>
drop_elements = ['PassengerId', 'Name', 'Ticket', 'Cabin', 'SibSp'] train = train.drop(drop_elements, axis = 1) train = train.drop(['CategoricalAge', 'CategoricalFare'], axis = 1) test = test.drop(drop_elements, axis = 1) train.head(5 )
Titanic - Machine Learning from Disaster
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model = CatBoostRegressor(objective='RMSE') model.fit(train_pool, plot=True, eval_set=val_pool, verbose=500 )<train_model>
y_train = train['Survived'].ravel() train = train.drop(['Survived'], axis=1) x_train = train.values x_test = test.values
Titanic - Machine Learning from Disaster
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params = {'n_estimators': 500, 'max_depth': 4, 'min_samples_split': 2, 'learning_rate': 0.01, 'loss': 'ls'} clfGB = GradientBoostingRegressor(**params) clfGB.fit(X_train, y_train) rGB=clfGB.predict(dfteste) clfRF = RandomForestRegressor() clfRF.fit(X_train, y_train) rRF=clfRF.predict(dfteste) <init_hyperparams>
test_data_with_labels = pd.read_csv("https://github.com/thisisjasonjafari/my-datascientise-handcode/raw/master/005-datavisualization/titanic.csv") test_data = pd.read_csv('.. /input/titanic/test.csv') for i, name in enumerate(test_data_with_labels['name']): if '"' in name: test_data_with_labels['name'][i] = re.sub('"...
Titanic - Machine Learning from Disaster
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params= {'boosting_type' : 'dart', 'max_depth':-1, 'objective':'regression', 'nthread': 5, 'num_leaves':64, 'learning_rate':0.01, 'max_bin':256, 'subsample_for_bin':200, 'subsample':1, 'subsample_freq':1, 'colsample_bytree':0.8, 'reg_alpha':1.2, 'reg_lambda':1.2, 'min_split_gain':0.5, 'min_child_weight':1, 'min_child_s...
gbm = xgb.XGBClassifier(n_estimators= 100, max_depth = 4, gamma = 0.9, nthread = -1, scale_pos_weight=1, random_state = 3101) gbm.fit(x_train, y_train) xgb_predictions = gbm.predict(x_test) score_gbm = gbm.score(x_train, y_train) print(f'Random Forest Classifier score(Train Accuracy): {score_gbm}') test_acc_gbm = ...
Titanic - Machine Learning from Disaster
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resp=model.predict(test_pool) respLGB=lgbm_cases.predict(dfteste) print("MSE CatBoost: %.4f" %mean_squared_error(resp,resposta)) print("MSE GradientBoosting: %.4f" %mean_squared_error(rGB,resposta)) print("MSE RandomForest: %.4f" %mean_squared_error(rRF,resposta)) print("MSE LightGBM: %.4f" %mean_squared_error(respLG...
rfc = RandomForestClassifier(n_estimators = 4, max_features = 5, random_state = 216) rfc.fit(x_train, y_train) score_rfc = rfc.score(x_train, y_train) out_rfc = rfc.predict(x_test) print(f'Random Forest Classifier score(Train Accuracy): {score_rfc}') test_acc_rfc = accuracy_score(y_true, out_rfc) print(f'Random F...
Titanic - Machine Learning from Disaster
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dftr['Modelado']=np.where(dftr['Erro']>0.33,dftr['Decay'],dftr['Previsto']) dftr[dftr['Local'].isin(['Brazil','US/New York','US/New Jersey','US/Florida','Italy','Spain','France','Germany'])]<feature_engineering>
knn = KNeighborsClassifier(n_neighbors=5) knn.fit(x_train, y_train) score_knn = knn.score(x_train, y_train) out_knn = knn.predict(x_test) print(f'K- Nearest Neighbour ClassifierClassifier score(Train Accuracy): {score_knn}') test_acc_knn = accuracy_score(y_true, out_knn) print(f'K- Nearest Neighbour Classifier Cl...
Titanic - Machine Learning from Disaster
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dft=df_f.pivot_table(index='Local',columns='Date',values='ConfirmedCases' ).reset_index() dft_copy=dft.copy() C1=np.where( (dft.iloc[: , -15].values)==0, (np.power(dft.iloc[: , -8].values/(( dft.iloc[: , -15].values)+1),1/7)) -(1) ,(np.power(dft.iloc[: , -8].values/(( dft.iloc[: , -15].values)) ,1/7)) -(1) ) C1=np.w...
svc = SVC(C = 5, kernel = 'linear', random_state = 8) svc.fit(x_train, y_train) score_svc = svc.score(x_train, y_train) out_svc = svc.predict(x_test) print(f'Support Vector Machine Classifier score(Train Accuracy): {score_svc}') test_acc_svc = accuracy_score(y_true, out_svc) print(f'K- Support Vector Machine Clas...
Titanic - Machine Learning from Disaster
12,485,520
dt[dt['Local'].isin(['Brazil','US/New York','US/New Jersey','US/Illinois','US/California','Italy','Spain','France','Germany'])]<feature_engineering>
vclf = VotingClassifier(estimators=[('gb',gbm),('rf',rfc),('knn',knn),('svm',svc)], voting='hard', weights=[2,3,1,2]) vclf.fit(x_train, y_train) out_vclf = vclf.predict(x_test) score_voting = vclf.score(x_train, y_train) print(f'Voting Classifier score(Train Accuracy): {score_voting}') test_acc_voting = accuracy_s...
Titanic - Machine Learning from Disaster
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<feature_engineering><EOS>
classifier = ['XGBoost', 'RandomForest', 'KNN', 'SVC', 'VotingEnsemble'] train_acc = [score_gbm, score_rfc, score_knn, score_svc, score_voting] test_acc = [test_acc_gbm, test_acc_rfc, test_acc_knn, test_acc_svc, test_acc_voting] score_df = pd.DataFrame({'classifier': classifier, 'train_acc': train_acc, 'test_acc': t...
Titanic - Machine Learning from Disaster
4,026,243
<SOS> metric: categorizationaccuracy Kaggle data source: titanic-machine-learning-from-disaster<train_model>
import os import numpy as np import pandas as pd import matplotlib.pyplot as plt from keras.layers import Input, Dense, BatchNormalization, Add, GaussianNoise, Dropout from keras.models import Model from keras.layers import Wrapper from keras.callbacks import ReduceLROnPlateau from keras.utils import to_categorical fro...
Titanic - Machine Learning from Disaster
4,026,243
params = {'n_estimators': 500, 'max_depth': 4, 'min_samples_split': 2, 'learning_rate': 0.01, 'loss': 'ls'} clfGB = GradientBoostingRegressor(**params) clfGB.fit(X_trainD, y_trainD) rGB=clfGB.predict(dfteste_d) clfRF = RandomForestRegressor() clfRF.fit(X_trainD, y_trainD) rRF=clfRF.predict(dfteste_d) params= {'boo...
train_set = pd.read_csv(".. /input/train.csv") train_dfY = train_set['Survived'] test_set = pd.read_csv(".. /input/test.csv") submission = test_set['PassengerId'].copy() print(train_set.shape) print(test_set.shape) print(train_dfY.shape)
Titanic - Machine Learning from Disaster
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resp=model.predict(test_pool_d) respLGB=lgbm_cases.predict(dfteste_d) print("MSE CatBoost: %.4f" %mean_squared_error(resp,resposta)) print("MSE GradientBoosting: %.4f" %mean_squared_error(rGB,resposta)) print("MSE RandomForest: %.4f" %mean_squared_error(rRF,resposta)) print("MSE LightGBM: %.4f" %mean_squared_error(re...
train_set['Cabin'].value_counts()
Titanic - Machine Learning from Disaster
4,026,243
dftr_d['Previsto']=np.where(( dftr_d['Crescimento_2'])>(dftr_d['Crescimento_1']),dftr_d['Previsto'],dftr_d['Previsto']/7) copy_dftr=dftr_d.copy() dftr_d=df_f.pivot_table(index='Local',columns='Date',values='Mortalidade' ).reset_index() dftr_copy=dftr_d.copy() C1=np.where( (dftr_d.iloc[: , -15].values)==0, (np.power(d...
datasets = [train_set, test_set] originalData = train_set for dataset in datasets: dataset['Age'].fillna(dataset["Age"].median() , inplace=True) dataset['Embarked'].fillna(dataset["Embarked"].mode() [0], inplace=True) dataset['Fare'].fillna(dataset['Fare'].median() , inplace = True) dataset.drop(['PassengerId','Cabi...
Titanic - Machine Learning from Disaster
4,026,243
dftr_d['2020-04-15']=(1+dftr_d['Cres_2020-04-15'])*dftr_d['2020-04-14'] dftr_d['2020-04-16']=(1+dftr_d['Cres_2020-04-16'])*dftr_d['2020-04-15'] dftr_d['2020-04-17']=(1+dftr_d['Cres_2020-04-17'])*dftr_d['2020-04-16'] dftr_d['2020-04-18']=(1+dftr_d['Cres_2020-04-18'])*dftr_d['2020-04-17'] dftr_d['2020-04-19']=(1+dftr_d['...
for dataset in datasets: StringArray = dataset['Name'].str.split(", ", expand=True) StringArray = StringArray[1].str.split(".", expand=True) dataset['Title'] = StringArray[0] title_names = dataset['Title'].value_counts() print('===Prior to grouping===') print(title_names) title_names =(dataset['Title'].value_counts...
Titanic - Machine Learning from Disaster
4,026,243
dftr_d[dftr_d['Local'].isin(['Brazil','US/New York','US/New Jersey','US/Florida','Italy','Spain','France','Germany'])]<feature_engineering>
label = LabelEncoder() enc = OneHotEncoder(handle_unknown='ignore') train_set = datasets[0] test_set = datasets[1] train_set = train_set.drop(['Survived'], axis=1) EncodedDataFrames = [] print(train_set.shape, test_set.shape) wholeData = pd.concat([train_set, test_set], ignore_index=True) wholeData['Sex_Code'] = la...
Titanic - Machine Learning from Disaster
4,026,243
dfm=df_f.pivot_table(index='Local',columns='Date',values='Fatalities' ).reset_index() mortes_adj=dfm.iloc[: , -1].values.sum() / dft_copy.iloc[: , -1].values.sum() dft['mortes']=dfm.iloc[: , -1].values / dft_copy.iloc[: , -1].values print(mortes_adj) dft.head()<filter>
wholeData = wholeData.drop(['Name', 'Sex', 'Age', 'SibSp', 'Parch', 'Fare', 'Embarked', 'Title', 'Pclass'], axis= 1) [train_set, test_set] = np.split(wholeData, [891], axis= 0) train_dfX = train_set print(train_dfX.shape, train_dfY.shape) train_dfX,val_dfX,train_dfY, val_dfY = train_test_split(train_dfX,train_dfY , ...
Titanic - Machine Learning from Disaster
4,026,243
dft[dft['Local'].isin(['Brazil','US/New York','US/New Jersey','US/Florida','Italy','Spain','France','Germany'])]<feature_engineering>
model = Sequential() model.add(Dense(40, kernel_initializer = 'glorot_normal', bias_initializer='zeros', activation = 'relu', kernel_regularizer=regularizers.l2(0.01), input_dim = 19)) model.add(Dropout(0.2)) model.add(Dense(20, kernel_initializer = 'glorot_normal', bias_initializer='zeros', activation = 'relu', kern...
Titanic - Machine Learning from Disaster
4,026,243
dft['mortes']=np.where(dft['mortes']>(2*mortes_adj),(2*mortes_adj),np.where(dft['mortes']<(mortes_adj/2),(mortes_adj/2),dft['mortes']))<merge>
train_history = model.fit(train_dfX, train_dfY, batch_size=24, epochs= 20, validation_data=(val_dfX, val_dfY))
Titanic - Machine Learning from Disaster
4,026,243
<merge><EOS>
y_test = model.predict(test_set) y_formatted = np.where(y_test > 0.5, 1, 0) y_dataFrame = pd.DataFrame(np.ravel(y_formatted), columns=['Survived']) submission = pd.concat([submission, y_dataFrame], axis=1) submission.to_csv('submission.csv', index=False )
Titanic - Machine Learning from Disaster
4,293,763
<SOS> metric: categorizationaccuracy Kaggle data source: titanic-machine-learning-from-disaster<merge>
import numpy as np import pandas as pd import matplotlib.pyplot as plt import seaborn as sns import warnings
Titanic - Machine Learning from Disaster
4,293,763
dftestefinal=pd.merge(df_test,dffat,on=['Local','Date'],how='left') dftestefinal['Fatalities']=dftestefinal['ConfirmedCases']*dftestefinal['Mortalidade'] dftestefinal.tail()<sort_values>
warnings.filterwarnings("ignore" )
Titanic - Machine Learning from Disaster