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model = XGBRegressor( max_depth=10, booster='gbtree', n_estimators=1000, min_child_weight=0.5, subsample=0.8, sampling_method="uniform", colsample_bynode=1, colsample_bytree=0.8, eta=0.1, tree_method='gpu_hist', seed=42) model.fit( X_train, Y_train, eval_metric="rmse", eval_set=[(X_train, Y_train),(X_val, Y_val)], v...
train.loc[train['PassengerId'] == 631, 'Age'] = 48 train.loc[train['PassengerId'] == 69, ['SibSp', 'Parch']] = [0,0] test.loc[test['PassengerId'] == 1106, ['SibSp', 'Parch']] = [0,0]
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pickle.dump(model, open("model.pkl", "wb"))<load_pretrained>
train[["Sex", "Survived"]].groupby(['Sex'], as_index=False ).mean().sort_values(by='Survived', ascending=False )
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loaded_model = pickle.load(open("model.pkl", "rb"))<load_from_csv>
def detect_outliers(df,n,features): outlier_indices = [] for col in features: Q1 = np.percentile(df[col], 25) Q3 = np.percentile(df[col],75) IQR = Q3 - Q1 outlier_step = 1.7 * IQR outlier_list_col = df[(df[col] < Q1 - outlier_step)|(df[col] > Q3 + outlier_step)].index outlier_indices.extend(outlier_list_col) outli...
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test = pd.read_csv('.. /input/competitive-data-science-predict-future-sales/test.csv') Y_test = loaded_model.predict(X_test ).clip(0, 20) submission = pd.DataFrame({ "ID": test.index, "item_cnt_month": Y_test } )<load_from_csv>
df = pd.concat(( train.loc[:,'Pclass':'Embarked'], test.loc[:,'Pclass':'Embarked'])).reset_index(drop=True )
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items=pd.read_csv("/kaggle/input/competitive-data-science-predict-future-sales/items.csv") item_categories=pd.read_csv("/kaggle/input/competitive-data-science-predict-future-sales/item_categories.csv" )<merge>
survived = train.drop(train[train['Survived'] != 1].index) not_survived = train.drop(train[train['Survived'] != 0].index) basic_analysis(survived,not_survived )
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df = pd.merge(items, item_categories) df<save_to_csv>
def basic_details(df): b = pd.DataFrame() b['Missing value, %'] = round(df.isnull().sum() /df.shape[0]*100) b['N unique value'] = df.nunique() b['dtype'] = df.dtypes return b basic_details(df )
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submission.to_csv('my_submission.csv', index=False )<import_modules>
df['Title'] = df.Name.str.extract('([A-Za-z]+)\.', expand=False) df['Title'] = df['Title'].replace(['Lady', 'Countess','Capt', 'Col', 'Don', 'Dr', 'Major', 'Rev', 'Sir', 'Jonkheer', 'Dona'], 'Rare') df['Title'] = df['Title'].replace('Mlle', 'Miss') df['Title'] = df['Title'].replace('Ms', 'Miss') df['Title'] = df['T...
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import psutil import joblib import numpy as np import pandas as pd import torch import torch.nn as nn from torch.utils.data import Dataset, DataLoader<split>
def des_stat_feat(df): df = pd.DataFrame(df) dcol= [c for c in df.columns if df[c].nunique() >=10] d_median = df[dcol].median(axis=0) d_mean = df[dcol].mean(axis=0) q1 = df[dcol].apply(np.float32 ).quantile(0.25) q3 = df[dcol].apply(np.float32 ).quantile(0.75) for c in dcol: df[c+str('_median_range')] =(df[c].asty...
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env = riiideducation.make_env() iter_test = env.iter_test()<define_variables>
def basic_details(df): b = pd.DataFrame() b['Missing value'] = df.isnull().sum() b['N unique value'] = df.nunique() b['dtype'] = df.dtypes return b basic_details(df )
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MAX_SEQ = 100<define_search_model>
df = df.loc[:,~df.columns.duplicated() ]
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class FFN(nn.Module): def __init__(self, state_size=200): super(FFN, self ).__init__() self.state_size = state_size self.lr1 = nn.Linear(state_size, state_size) self.relu = nn.ReLU() self.lr2 = nn.Linear(state_size, state_size) self.dropout = nn.Dropout(0.2) def forward(self, x): x = self.lr1(x) x = self.relu(x) x...
df.apply(lambda x: sum(x.isnull()),axis=0 )
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skills = joblib.load("/kaggle/input/riiid-sakt-model-dataset-public/skills.pkl.zip") n_skill = len(skills) group = joblib.load("/kaggle/input/riiid-sakt-model-dataset-public/group.pkl.zip" )<load_pretrained>
from sklearn.preprocessing import LabelEncoder from sklearn.preprocessing import RobustScaler, StandardScaler from sklearn.model_selection import train_test_split
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device = torch.device("cuda" if torch.cuda.is_available() else "cpu") model = SAKTModel(n_skill, embed_dim=128) try: model.load_state_dict(torch.load("/kaggle/input/riiid-sakt-model-dataset-public/sakt_model.pt")) except: model.load_state_dict(torch.load("/kaggle/input/riiid-sakt-model-dataset-public/sakt_model.pt", ...
le = LabelEncoder() for col in df.select_dtypes('object' ).columns: df[col] = le.fit_transform(df[col] )
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prev_test_df = None for(test_df, sample_prediction_df)in iter_test: if(prev_test_df is not None)&(psutil.virtual_memory().percent < 90): prev_test_df['answered_correctly'] = eval(test_df['prior_group_answers_correct'].iloc[0]) prev_test_df = prev_test_df[prev_test_df.content_type_id == False] prev_group = prev_test_df...
X_train = df[:train.shape[0]] X_test_fin = df[train.shape[0]:] y = train.Survived X_train['Y'] = y df = X_train df.head(20) X = df.drop('Y', axis=1) y = df.Y
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import gc import random from tqdm import tqdm from sklearn.metrics import roc_auc_score from sklearn.model_selection import train_test_split import seaborn as sns import matplotlib.pyplot as plt import torch import torch.nn as nn import torch.nn.utils.rnn as rnn_utils from torch.autograd import Variable from torch.util...
x_train, x_valid, y_train, y_valid = train_test_split(X, y, test_size=0.1, random_state=2020 )
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MAX_SEQ = 160 <load_from_csv>
d_train = xgb.DMatrix(x_train, label=y_train) d_valid = xgb.DMatrix(x_valid, label=y_valid) d_test = xgb.DMatrix(X_test_fin) params = { 'objective':'binary:logistic', 'max_depth':10, 'learning_rate':0.1, 'eval_metric':'auc', 'min_child_weight':1, 'subsample':0.64, 'colsample_bytree':0.4, 'seed':45, 'reg_lambda':2.79...
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%%time dtype = {'timestamp':'int64', 'user_id':'int32' , 'content_id':'int16', 'content_type_id':'int8', 'answered_correctly':'int8'} train_df = pd.read_csv('/kaggle/input/riiid-test-answer-prediction/train.csv', usecols=[1, 2, 3, 4, 7], dtype=dtype) train_df.head()<sort_values>
accuracy = pd.DataFrame() accuracy['predict'] = model.predict(d_valid) accuracy['predict'] = accuracy['predict'].apply(lambda x: 1 if x>0.6 else 0) accuracy_score(y_valid, accuracy['predict'] )
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train_df = train_df[train_df.content_type_id == False] train_df = train_df.sort_values(['timestamp'], ascending=True ).reset_index(drop = True )<count_unique_values>
sub = pd.DataFrame() sub['PassengerId'] = test['PassengerId'] sub['Survived'] = model.predict(d_test) sub['Survived'] = sub['Survived'].apply(lambda x: 1 if x>0.6 else 0 )
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skills = train_df["content_id"].unique() n_skill = len(skills) print("number skills", len(skills))<groupby>
leaks = { 897:1, 899:1, 930:1, 932:1, 949:1, 987:1, 995:1, 998:1, 999:1, 1016:1, 1047:1, 1083:1, 1097:1, 1099:1, 1103:1, 1115:1, 1118:1, 1135:1, 1143:1, 1152:1, 1153:1, 1171:1, 1182:1, 1192:1, 1203:1, 1233:1, 1250:1, 1264:1, 1286:1, 935:0, 957:0, 972:0, 988:0, 1004:0, 1006:0, 1011:0, 1105:0, 1130:0, 1138:0, 1173:0, 128...
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<define_variables><EOS>
sub['Survived'] = sub.apply(lambda r: leaks[int(r['PassengerId'])] if int(r['PassengerId'])in leaks else r['Survived'], axis=1) sub.to_csv('submission.csv', index=False) sub.head()
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<SOS> metric: categorizationaccuracy Kaggle data source: titanic-machine-learning-from-disaster<define_variables>
warnings.filterwarnings("ignore" )
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class SAKTDataset(Dataset): def __init__(self, group, n_skill, max_seq=MAX_SEQ): super(SAKTDataset, self ).__init__() self.max_seq = max_seq self.n_skill = n_skill self.samples = group self.user_ids = [] for user_id in group.index: q, qa = group[user_id] if len(q)< 2: continue self.user_ids.append(user_id) def __len__...
df1 = pd.read_csv(".. /input/titanic/train.csv") tf1 = pd.read_csv(".. /input/titanic/test.csv") result = pd.read_csv(".. /input/titanic/gender_submission.csv" )
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dataset = SAKTDataset(group, n_skill) dataloader = DataLoader(dataset, batch_size=2048, shuffle=True, num_workers=8) item = dataset.__getitem__(5) <define_search_model>
df.isnull().sum()
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class FFN(nn.Module): def __init__(self, state_size=200): super(FFN, self ).__init__() self.state_size = state_size self.lr1 = nn.Linear(state_size, state_size) self.relu = nn.ReLU() self.lr2 = nn.Linear(state_size, state_size) self.dropout = nn.Dropout(0.2) def forward(self, x): x = self.lr1(x) x = self.relu(x) x...
tf.isnull().sum()
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device = torch.device("cuda" if torch.cuda.is_available() else "cpu") model = SAKTModel(n_skill, embed_dim=128) optimizer = torch.optim.Adam(model.parameters() , lr=1e-3) criterion = nn.BCEWithLogitsLoss() model.to(device) criterion.to(device )<train_model>
df['Survived'].value_counts()
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def train_epoch(model, train_iterator, optim, criterion, device="cpu"): model.train() train_loss = [] num_corrects = 0 num_total = 0 labels = [] outs = [] tbar = tqdm(train_iterator) for item in tbar: x = item[0].to(device ).long() target_id = item[1].to(device ).long() label = item[2].to(device ).float() optim.zero_g...
final = pd.concat([df,tf],axis = 0) final.drop(['Survived'],axis = 1,inplace = True )
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epochs = 35 for epoch in range(epochs): loss, acc, auc = train_epoch(model, dataloader, optimizer, criterion, device) print("epoch - {} train_loss - {:.2f} acc - {:.3f} auc - {:.3f}".format(epoch, loss, acc, auc))<save_model>
index_NaN_age = list(final["Age"][final["Age"].isnull() ].index) for i in index_NaN_age : age_med = final["Age"].median() age_pred = final["Age"][(( final['SibSp'] == final.iloc[i]["SibSp"])&(final['Parch'] == final.iloc[i]["Parch"])&(final['Pclass'] == final.iloc[i]["Pclass"])) ].median() if not np.isnan(age_pred): f...
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torch.save(model.state_dict() , "SAKT-HDKIM.pt" )<set_options>
final['Age'].isnull().sum()
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del dataset gc.collect()<split>
final['Age'].fillna(final['Age'].median() ,inplace = True)
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env = riiideducation.make_env() iter_test = env.iter_test()<feature_engineering>
final['Fare'].isnull().sum()
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model.eval() prev_test_df = None for(test_df, sample_prediction_df)in tqdm(iter_test): if(prev_test_df is not None)&(psutil.virtual_memory().percent<90): print(psutil.virtual_memory().percent) prev_test_df['answered_correctly'] = eval(test_df['prior_group_answers_correct'].iloc[0]) prev_test_df = prev_test_df[prev_te...
final["Fare"] = final["Fare"].fillna(final["Fare"].median())
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import gc import joblib import pandas as pd import numpy as np import lightgbm as lgb<feature_engineering>
final["Fare"] = final["Fare"].map(lambda n: np.log(n)if n > 0 else 0)
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def add_user_feats_without_update(df, answered_correctly_sum_u_dict, count_u_dict): acsu = np.zeros(len(df), dtype=np.int32) cu = np.zeros(len(df), dtype=np.int32) for cnt,row in enumerate(df[['user_id']].values): acsu[cnt] = answered_correctly_sum_u_dict[row[0]] cu[cnt] = count_u_dict[row[0]] user_feats_df = pd.Data...
new = final['Name'].str.split('.', n=1, expand = True) final['First'] = new[0] final['Last'] = new[1] new1 = final['First'].str.split(',', n=1, expand = True) final['Last Name'] = new1[0] final['Title'] = new1[1] new2 = final['Title'].str.split('', n=1, expand = True )
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answered_correctly_sum_u_dict = joblib.load(".. /input/lgbm-with-loop-feature-engineering-dataset/answered_correctly_sum_u_dict.pkl.zip") count_u_dict = joblib.load(".. /input/lgbm-with-loop-feature-engineering-dataset/count_u_dict.pkl.zip") questions_df = pd.read_feather('.. /input/lgbm-with-loop-feature-engineering...
final['Title'].value_counts()
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TARGET = 'answered_correctly' FEATS = ['answered_correctly_avg_u', 'answered_correctly_sum_u', 'count_u', 'answered_correctly_avg_c', 'part', 'prior_question_had_explanation', 'prior_question_elapsed_time' ]<load_pretrained>
final.drop(['First','Last','Name','Last Name'],axis = 1,inplace = True )
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model = lgb.Booster(model_file=".. /input/lgbm-with-loop-feature-engineering-dataset/fold0_lgb_model.txt") model.best_iteration = joblib.load(".. /input/lgbm-with-loop-feature-engineering-dataset/fold0_lgb_model_best_iteration.pkl.zip" )<load_pretrained>
final.replace(to_replace = [ ' Don', ' Rev', ' Dr', ' Mme', ' Major', ' Sir', ' Col', ' Capt',' Jonkheer'], value = ' Honorary(M)', inplace = True) final.replace(to_replace = [ ' Ms', ' Lady', ' Mlle',' the Countess', ' Dona'], value = ' Honorary(F)', inplace = True )
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optimized_weights = joblib.load(".. /input/lgbm-with-loop-feature-engineering-dataset/optimized_weights.pkl.zip" )<feature_engineering>
df3 = final.copy() df3 = df3[:891] df3 = pd.concat([df3,df1['Survived']],axis = 1) df3.head()
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class Iter_Valid(object): def __init__(self, df, max_user=1000): df = df.reset_index(drop=True) self.df = df self.user_answer = df['user_answer'].astype(str ).values self.answered_correctly = df['answered_correctly'].astype(str ).values df['prior_group_responses'] = "[]" df['prior_group_answers_correct'] = "[]" self.s...
final['Title'].value_counts()
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env = riiideducation.make_env() iter_test = env.iter_test() set_predict = env.predict<merge>
final = pd.get_dummies(final, columns = ["Title"] )
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previous_test_df = None for(test_df, sample_prediction_df)in iter_test: if previous_test_df is not None: previous_test_df[TARGET] = eval(test_df["prior_group_answers_correct"].iloc[0]) update_user_feats(previous_test_df, answered_correctly_sum_u_dict, count_u_dict) previous_test_df = test_df.copy() test_df = test_df[...
final["Family"] = final["SibSp"] + final["Parch"] + 1
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import glob import pandas as pd<define_variables>
final['Single'] = final['Family'].map(lambda s: 1 if s == 1 else 0) final['SmallF'] = final['Family'].map(lambda s: 1 if s == 2 else 0) final['MedF'] = final['Family'].map(lambda s: 1 if 3 <= s <= 4 else 0) final['LargeF'] = final['Family'].map(lambda s: 1 if s >= 5 else 0 )
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FILES = glob.glob('.. /input/*/prediction_*.csv', recursive=True) FILES = [ '.. /input/mysample/tabular_6928.csv', '.. /input/sub-blend/submission_945_15_folds.csv', '.. /input/sub-blend/submission_945_5_folds.csv', '.. /input/melanoma-sub-single-9516/submission_comb(1 ).csv', '.. /input/train-cv-melanoma/submission.c...
final['Embarked'].fillna("S",inplace = True )
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sub = pd.read_csv(".. /input/siim-isic-melanoma-classification/sample_submission.csv") del sub['target'] w = [0.05, 0.1, 0.1, 0.1, 0.15, 0.15, 0.15, 0.2] <define_variables>
final = pd.get_dummies(final, columns = ["Embarked"], prefix="Embarked_from_" )
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for counter, f in enumerate(FILES): print(counter) print(f )<load_from_csv>
final.Cabin.isnull().sum()
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df = pd.read_csv(f )<feature_engineering>
final.Cabin.value_counts()
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df.columns = ['image_name', str(counter)] df[str(counter)] *= w[counter] df.head()<merge>
final['Cabin_final'] = df['Cabin'].str[0]
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for counter, f in enumerate(FILES): df = pd.read_csv(f) df.columns = ['image_name', str(counter)] df[str(counter)] *= w[counter] sub = sub.merge(df, on="image_name" )<prepare_x_and_y>
final['Cabin_final'].fillna('Unknown',inplace = True )
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image_name = sub.image_name sub = sub.drop(columns = ["image_name"]) target = sub.sum(axis = 1 )<save_to_csv>
final['Cabin_final'].value_counts()
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pd.DataFrame({ 'image_name' : image_name, 'target' : target } ).to_csv('submission_b.csv', index=False )<set_options>
final.drop(['Cabin'],axis = 1,inplace = True )
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warnings.filterwarnings('ignore' )<install_modules>
final = pd.get_dummies(final, columns = ["Cabin_final"],prefix="Cabin_" )
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!pip install -q efficientnet<import_modules>
final.Ticket.value_counts()
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import tensorflow as tf import tensorflow.keras.backend as K import efficientnet.tfkeras as efn from kaggle_datasets import KaggleDatasets<load_from_csv>
final['Ticket'] = final['Ticket'].astype(str) final['Ticket_length'] = final.Ticket.apply(len) final['Ticket_length'].astype(int) final['Ticket_length'].unique()
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train = pd.read_csv("/kaggle/input/siim-isic-melanoma-classification/train.csv") test = pd.read_csv("/kaggle/input/siim-isic-melanoma-classification/test.csv") sample = pd.read_csv("/kaggle/input/siim-isic-melanoma-classification/sample_submission.csv" )<define_variables>
final['Ticket_length'] = np.where(((final.Ticket_length == 3)|(final.Ticket_length == 4)|(final.Ticket_length == 5)) ,4,final.Ticket_length) final['Ticket_length'] = np.where(((final.Ticket_length == 6)) ,5,final.Ticket_length) final['Ticket_length'] = np.where(((final.Ticket_length == 7)|(final.Ticket_length == 8)|(...
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GCS_PATH = KaggleDatasets().get_gcs_path('melanoma-384x384') GCS_PATH2 = KaggleDatasets().get_gcs_path('malignant-v2-384x384') GCS_PATH3 = KaggleDatasets().get_gcs_path('isic2019-384x384') filenames_train1 = tf.io.gfile.glob(GCS_PATH + '/train*.tfrec') filenames_train2 = tf.io.gfile.glob(GCS_PATH2 + '/train%.2i*.tf...
final['Ticket_length'].value_counts()
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filenames_train = np.array(filenames_train1+filenames_train2+filenames_train3) np.random.shuffle(filenames_train )<feature_engineering>
final['Ticket_length'] = final['Ticket_length'].astype(str) final['Ticket_length'] = np.where(((final.Ticket_length == '4')) ,'Below 6',final.Ticket_length) final['Ticket_length'] = np.where(((final.Ticket_length == '5')) ,'At 6',final.Ticket_length) final['Ticket_length'] = np.where(((final.Ticket_length == '12')) ...
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AUTO = tf.data.experimental.AUTOTUNE<set_options>
conversion = pd.get_dummies(final.Ticket_length, prefix = 'Ticket Length') final = pd.concat([final , conversion], axis = 1) final.drop(['Ticket','Ticket_length'],axis = 1, inplace = True )
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cfg = dict( batch_size=32, img_size=384, lr_start=0.000005, lr_max=0.00000125, lr_min=0.000001, lr_rampup=5, lr_sustain=0, lr_decay=0.8, epochs=12, transform_prob=1.0, rot=180.0, shr=2.0, hzoom=8.0, wzoom=8.0, hshift=8.0, wshift=8.0, optimizer='adam', label_smooth_fac=0.05, tta_steps=20 )<normalization>
final = pd.get_dummies(final, columns = ["Sex"],prefix="Gender_" )
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def get_mat(rotation, shear, height_zoom, width_zoom, height_shift, width_shift): rotation = math.pi * rotation / 180. shear = math.pi * shear / 180. c1 = tf.math.cos(rotation) s1 = tf.math.sin(rotation) one = tf.constant([1], dtype='float32') zero = tf.constant([0], dtype='float32') rotation_matrix = tf.reshape(...
final.head() final.drop(['PassengerId'],axis = 1,inplace = True) final.drop(['SibSp','Parch','Family'],axis = 1,inplace = True )
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def transform(image, cfg): DIM = cfg['img_size'] XDIM = DIM % 2 rot = cfg['rot'] * tf.random.normal([1], dtype='float32') shr = cfg['shr'] * tf.random.normal([1], dtype='float32') h_zoom = 1.0 + tf.random.normal([1], dtype='float32')/ cfg['hzoom'] w_zoom = 1.0 + tf.random.normal([1], dtype='float32')/ cfg['wzoom'] h_...
final.isnull().sum()
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def dropout(image, DIM=384, PROBABILITY = 0.75, CT = 8, SZ = 0.2): P = tf.cast(tf.random.uniform([],0,1)<PROBABILITY, tf.int32) if(P==0)|(CT==0)|(SZ==0): return image for k in range(CT): x = tf.cast(tf.random.uniform([],0,DIM),tf.int32) y = tf.cast(tf.random.uniform([],0,DIM),tf.int32) WIDTH = tf.cast(SZ*DIM,tf.int3...
correlation = final.copy() sur = pd.concat([df['Survived'],result['Survived']],axis = 0) correlation = pd.concat([correlation,sur],axis = 1 )
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def prepare_image(img, cfg=None,droprate=0.5,dropct=8,dropsize=0.2): img = tf.image.decode_jpeg(img, channels=3) img = tf.image.resize(img, [cfg['img_size'], cfg['img_size']], antialias=True) img = tf.cast(img, tf.float32)/ 255.0 if cfg['transform_prob'] > tf.random.uniform([1], minval=0, maxval=1): img = transform(i...
from sklearn.linear_model import LogisticRegression from sklearn.svm import LinearSVC from sklearn import svm from sklearn.naive_bayes import GaussianNB from sklearn.naive_bayes import MultinomialNB from sklearn.tree import DecisionTreeClassifier from sklearn.ensemble import RandomForestClassifier from sklearn.ensemble...
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def read_labeled_tfrecord(example): LABELED_TFREC_FORMAT = { 'image': tf.io.FixedLenFeature([], tf.string), 'image_name': tf.io.FixedLenFeature([], tf.string), 'target': tf.io.FixedLenFeature([], tf.int64) } example = tf.io.parse_single_example(example, LABELED_TFREC_FORMAT) return example['image'], example['target']...
x_train = final[:891] feature_scaler = MinMaxScaler() x_train = feature_scaler.fit_transform(x_train )
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def read_unlabeled_tfrecord(example): UNLABELED_TFREC_FORMAT = { 'image': tf.io.FixedLenFeature([], tf.string), 'image_name': tf.io.FixedLenFeature([], tf.string) } example = tf.io.parse_single_example(example, UNLABELED_TFREC_FORMAT) return example['image'], example['image_name'] <count_values>
y_train = final[891:] feature_scaler = MinMaxScaler() y_train = feature_scaler.fit_transform(y_train )
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def count_data_items(filenames): n = [ int(re.compile(r'-([0-9]*)\.' ).search(filename ).group(1)) for filename in filenames ] return np.sum(n )<create_dataframe>
x_test = df1['Survived']
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def getTrainDataset(files, cfg): ds = tf.data.TFRecordDataset(files, num_parallel_reads=AUTO) ds = ds.cache() opt = tf.data.Options() opt.experimental_deterministic = False ds = ds.with_options(opt) ds = ds.map(read_labeled_tfrecord, num_parallel_calls=AUTO) ds = ds.repeat() ds = ds.shuffle(2048) ds = ds.map(lambda...
y_test = result['Survived']
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def getTestDataset(files, cfg, augment=False, repeat=False): ds = tf.data.TFRecordDataset(files, num_parallel_reads=AUTO) ds = ds.cache() if repeat: ds = ds.repeat() ds = ds.map(read_unlabeled_tfrecord, num_parallel_calls=AUTO) ds = ds.map(lambda img, idnum: (prepare_image(img, cfg=cfg), idnum), num_parallel_calls=A...
accuracy = [] estimator = []
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def getLearnRateCallback(cfg): lr_start = cfg['lr_start'] lr_max = cfg['lr_max'] * strategy.num_replicas_in_sync * cfg['batch_size'] lr_min = cfg['lr_min'] lr_rampup = cfg['lr_rampup'] lr_sustain = cfg['lr_sustain'] lr_decay = cfg['lr_decay'] def lrfn(epoch): if epoch < lr_rampup: lr =(lr_max - lr_start)/ lr_rampup * e...
LR = LogisticRegression() estimator.append(( 'LR',LogisticRegression())) cv = cross_val_score(LR,x_train,x_test,cv=10) accuracy1 = cv.mean() accuracy.append(accuracy1) print(cv) print(cv.mean() )
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with strategy.scope() : model_input = tf.keras.Input(shape=(cfg['img_size'], cfg['img_size'], 3), name='img_input') dummy = tf.keras.layers.Lambda(lambda x: x )(model_input) outputs = [] x = efn.EfficientNetB3(include_top=False, weights='noisy-student', input_shape=(cfg['img_size'], cfg['img_size'], 3), pooling='avg'...
LR.fit(x_train,x_test) model1pred = LR.predict(y_train) submission1 = pd.DataFrame(columns = ['PassengerId','Survived']) submission1['PassengerId'] = result['PassengerId'] submission1['Survived'] = model1pred submission1.to_csv('LogisticRegression(No HT ).csv',index = False )
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ds_train = getTrainDataset(filenames_train, cfg ).map(lambda img, label:(img,(label, label, label))) stepsTrain = count_data_items(filenames_train)/(cfg['batch_size'] * strategy.num_replicas_in_sync )<train_model>
LR.score(y_train,y_test )
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callbacks = [getLearnRateCallback(cfg)] history = model.fit(ds_train, validation_data=None, verbose=1, steps_per_epoch=stepsTrain, validation_steps=0, epochs=10, callbacks=callbacks )<predict_on_test>
SVC = LinearSVC() cv = cross_val_score(SVC,x_train,x_test,cv=10) accuracy2 = cv.mean() accuracy.append(accuracy2) print(cv) print(cv.mean())
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steps = count_data_items(filenames_test)/(cfg['batch_size'] * strategy.num_replicas_in_sync) z = np.zeros(( cfg['batch_size'] * strategy.num_replicas_in_sync)) ds_testAug = getTestDataset(filenames_test, cfg, augment=True, repeat=True ).map(lambda img, label:(img,(z, z, z))) probs = model.predict(ds_testAug, verbose=...
SVC.fit(x_train,x_test) SVC.score(y_train,y_test )
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probs = np.stack(probs) probs = probs[:, :count_data_items(filenames_test)* cfg['tta_steps']] probs = np.stack(np.split(probs, cfg['tta_steps'], axis=1), axis=1) probs = np.mean(probs, axis=1 )<save_to_csv>
SVC.fit(x_train,x_test) model2pred = SVC.predict(y_train) submission2 = pd.DataFrame(columns = ['PassengerId','Survived']) submission2['PassengerId'] = result['PassengerId'] submission2['Survived'] = model2pred submission2.to_csv('LinearSVC(No HT ).csv',index = False )
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y_test_sorted = np.zeros(( 3, probs.shape[1])) test = test.reset_index() test = test.set_index('image_name') i = 0 ds_test = getTestDataset(filenames_test, cfg) for img, imgid in tqdm(iter(ds_test.unbatch())) : imgid = imgid.numpy().decode('utf-8') y_test_sorted[:, test.loc[imgid]['index']] = probs[:, i, 0] i += 1 f...
poly = svm.SVC(kernel = 'poly', gamma = 'scale') cv = cross_val_score(poly,x_train,x_test,cv=10) accuracy3 = cv.mean() accuracy.append(accuracy3) print(cv) print(cv.mean() )
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!gzip model_0.csv !gzip model_1.csv !gzip model_2.csv !gzip ensembled.csv<import_modules>
poly.fit(x_train,x_test) poly.score(y_train,y_test )
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import numpy as np import pandas as pd<load_from_csv>
model3pred = poly.predict(y_train) submission3 = pd.DataFrame(columns = ['PassengerId','Survived']) submission3['PassengerId'] = result['PassengerId'] submission3['Survived'] = model3pred submission3.to_csv('PolynomialSVC(No HT ).csv',index = False )
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data1 = pd.read_csv('.. /input/minmax-ensemble-0-9526-lb/submission.csv') data2 = pd.read_csv('.. /input/stacking-ensemble-on-my-submissions/submission_mean.csv') data3 = pd.read_csv('.. /input/stacking-ensemble-on-my-submissions/submission_median.csv') data4 = pd.read_csv('.. /input/analysis-of-melanoma-metadata-an...
DT = DecisionTreeClassifier(random_state = 5) estimator.append(( 'DT',DecisionTreeClassifier(random_state = 5))) cv = cross_val_score(DT,x_train,x_test,cv=10) accuracy4 = cv.mean() accuracy.append(accuracy4) print(cv) print(cv.mean() )
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submission['target'] = 2/6 * data1['target'] + 1/6 * data2['target'] + 1/6 * data3['target'] + 1/6 * data4['target'] + 1/6 * data5['target']<save_to_csv>
DT.fit(x_train,x_test) DT.score(y_train,y_test )
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submission.to_csv('submission.csv', index=False, float_format='%.6f' )<install_modules>
model4pred = DT.predict(y_train) submission4 = pd.DataFrame(columns = ['PassengerId','Survived']) submission4['PassengerId'] = result['PassengerId'] submission4['Survived'] = model4pred submission4.to_csv('Decision Tree(No HT ).csv',index = False )
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!pip install -q efficientnet !pip install -q git+https://github.com/AmedeoBiolatti/dsqol<import_modules>
GNB = GaussianNB() estimator.append(( 'GNB',GaussianNB())) cv = cross_val_score(GNB,x_train,x_test,cv=10) accuracy5 = cv.mean() accuracy.append(accuracy5) print(cv) print(cv.mean() )
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import os, re, time, tqdm import numpy as np import pandas as pd import matplotlib.pyplot as plt from sklearn import metrics, model_selection import tensorflow as tf import tensorflow_addons as tfa from tensorflow import keras from tensorflow.keras import backend as K from efficientnet import tfkeras as efnet from kagg...
GNB.fit(x_train,x_test) GNB.score(y_train,y_test )
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from dsqol.tf import imgaug from dsqol.tf.data import balance from dsqol.tf.utils import average from dsqol.tf import losses<init_hyperparams>
model5pred = GNB.predict(y_train) submission5 = pd.DataFrame(columns = ['PassengerId','Survived']) submission5['PassengerId'] = result['PassengerId'] submission5['Survived'] = model5pred submission5.to_csv('Gaussian NB(No HT ).csv',index = False )
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SEED = 42 tf.random.set_seed(SEED) np.random.seed(SEED) TIME_BUDGET = 2.5 * 3600 FOLDS = 5 INCLUDE_2019 = 0 INCLUDE_2018 = 1 INCLUDE_MALIGNANT = 0 IMG_READ_SIZE = 512 IMG_SIZE = 512 BALANCE_POS_RATIO = 0.08 EFF_NET = 5 LOSS_TYPE = 'BCE' LOSS_PARAMS = dict(label_smoothing=0.05) BATCH_SIZE = 32 EPOCHS = 20 TBM = 6 TTA...
MNB = MultinomialNB() estimator.append(( 'MNB',MultinomialNB())) cv = cross_val_score(MNB,x_train,x_test,cv=10) accuracy6 = cv.mean() accuracy.append(accuracy6) print(cv) print(cv.mean() )
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DEVICE = "TPU" print("connecting to TPU...") try: tpu = tf.distribute.cluster_resolver.TPUClusterResolver() print('Running on TPU ', tpu.master()) except ValueError: print("Could not connect to TPU") tpu = None if tpu: try: print("initializing TPU...") tf.config.experimental_connect_to_cluster(tpu) tf.tpu.experime...
MNB.fit(x_train,x_test) MNB.score(y_train,y_test )
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GCS_PATH1 = KaggleDatasets().get_gcs_path('melanoma-%ix%i' %(IMG_READ_SIZE, IMG_READ_SIZE)) GCS_PATH2 = KaggleDatasets().get_gcs_path('isic2019-%ix%i' %(IMG_READ_SIZE, IMG_READ_SIZE)) GCS_PATH3 = KaggleDatasets().get_gcs_path('malignant-v2-%ix%i' %(IMG_READ_SIZE, IMG_READ_SIZE))<load_from_csv>
MNB.fit(x_train,x_test) model6pred = MNB.predict(y_train) submission6 = pd.DataFrame(columns = ['PassengerId','Survived']) submission6['PassengerId'] = result['PassengerId'] submission6['Survived'] = model6pred submission6.to_csv('MultinomialNB(No HT ).csv',index = False )
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df_base_train = pd.read_csv(".. /input/siim-isic-melanoma-classification/train.csv") df_base_test = pd.read_csv(".. /input/siim-isic-melanoma-classification/test.csv" )<define_variables>
RF = RandomForestClassifier(random_state = 5) estimator.append(( 'RF',RandomForestClassifier(random_state = 5))) cv = cross_val_score(RF,x_train,x_test,cv=10) accuracy7 = cv.mean() accuracy.append(accuracy7) print(cv) print(cv.mean() )
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train_files = tf.io.gfile.glob(os.path.join(GCS_PATH1, "train*.tfrec")) if INCLUDE_2019: train_files += tf.io.gfile.glob([os.path.join(GCS_PATH2, "train%.2i*.tfrec" % i)for i in range(1, 30, 2)]) if INCLUDE_2018: train_files += tf.io.gfile.glob([os.path.join(GCS_PATH2, "train%.2i*.tfrec" % i)for i in range(0, 30, 2)])...
RF.fit(x_train,x_test) RF.score(y_train,y_test )
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test_files = tf.io.gfile.glob(os.path.join(GCS_PATH1, "test*.tfrec")) print("%d test files found" % len(test_files))<prepare_x_and_y>
RF.fit(x_train,x_test) model7pred = RF.predict(y_train) submission7 = pd.DataFrame(columns = ['PassengerId','Survived']) submission7['PassengerId'] = result['PassengerId'] submission7['Survived'] = model7pred submission7.to_csv('RandomForest(No HT ).csv',index = False )
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def read_labeled_tfrecord(example): tfrec_format = { 'image' : tf.io.FixedLenFeature([], tf.string), 'image_name' : tf.io.FixedLenFeature([], tf.string), 'target' : tf.io.FixedLenFeature([], tf.int64) } example = tf.io.parse_single_example(example, tfrec_format) return example['image'], example['target'] def read_unl...
GBC = GradientBoostingClassifier(random_state = 5) estimator.append(( 'GBC',GradientBoostingClassifier(random_state = 5))) cv = cross_val_score(GBC,x_train,x_test,cv=10) accuracy8 = cv.mean() accuracy.append(accuracy8) print(cv) print(cv.mean() )
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def dropout(image, DIM=256, PROBABILITY = 0.75, CT = 8, SZ = 0.2): P = tf.cast(tf.random.uniform([],0,1)<PROBABILITY, tf.int32) if(P==0)|(CT==0)|(SZ==0): return image for k in range(CT): x = tf.cast(tf.random.uniform([],0,DIM),tf.int32) y = tf.cast(tf.random.uniform([],0,DIM),tf.int32) WIDTH = tf.cast(SZ*DIM,tf.int3...
GBC.fit(x_train,x_test) GBC.score(y_train,y_test )
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AUG_BS = 64 def base_aug(img): img = tf.image.random_flip_left_right(img) img = tf.image.random_saturation(img, 0.7, 1.3) img = tf.image.random_contrast(img, 0.8, 1.2) img = tf.image.random_brightness(img, 0.1) return img dropout_aug = lambda img, o: dropout(img, DIM=IMG_READ_SIZE, PROBABILITY=0.75, CT=8, SZ=0.15) ...
GBC.fit(x_train,x_test) model8pred = GBC.predict(y_train) submission8 = pd.DataFrame(columns = ['PassengerId','Survived']) submission8['PassengerId'] = result['PassengerId'] submission8['Survived'] = model8pred submission8.to_csv('GradientBoosting(No HT ).csv',index = False )
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def get_dataset(files, augment=False, repeat=False, shuffle=False, labeled=True, batch_size=16, drop_remainder=False, dim=256, read_dim=None )-> tf.data.Dataset: if read_dim is None: read_dim = dim ds = tf.data.TFRecordDataset(files, num_parallel_reads=AUTO) ds = ds.cache() if repeat: ds = ds.repeat() if shuffle: ds ...
XGB = XGBClassifier(random_state = 5) estimator.append(( 'XGB', XGBClassifier(random_state = 5))) cv = cross_val_score(XGB,x_train,x_test,cv=10) accuracy9 = cv.mean() accuracy.append(accuracy9) print(cv) print(cv.mean() )
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def show_dataset(thumb_size, cols, rows, ds): mosaic = PIL.Image.new(mode='RGB', size=(thumb_size*cols +(cols-1), thumb_size*rows +(rows-1))) for idx, data in enumerate(iter(ds)) : img, target_or_imgid = data ix = idx % cols iy = idx // cols img = np.clip(img.numpy() * 255, 0, 255 ).astype(np.uint8) img = PIL.Image.f...
XGB.fit(x_train,x_test) XGB.score(y_train,y_test )
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show_dataset(128, 8, 2, get_balanced_dataset(train_files, augment=[dropout_aug], cw_augment=[cw_mixup_aug] ).take(10 ).unbatch() )<choose_model_class>
XGB.fit(x_train,x_test) model9pred = XGB.predict(y_train) submission9 = pd.DataFrame(columns = ['PassengerId','Survived']) submission9['PassengerId'] = result['PassengerId'] submission9['Survived'] = model9pred submission9.to_csv('XGBoosting(No HT ).csv',index = False )
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def build_model(dim=128, ef=0): inp = keras.layers.Input(shape=(dim,dim,3)) base = getattr(efnet, 'EfficientNetB%d' % ef )(input_shape=(dim, dim, 3), weights='imagenet', include_top=False) x = base(inp) x = keras.layers.GlobalAveragePooling2D()(x) x = keras.layers.Dense(1 )(x) x = keras.layers.Activation('sigmoid',...
KNN = KNeighborsClassifier(n_neighbors = 11) estimator.append(( 'KNN',KNeighborsClassifier(n_neighbors = 11))) cv = cross_val_score(KNN,x_train,x_test,cv=10) accuracy10 = cv.mean() accuracy.append(accuracy10) print(cv) print(cv.mean() )
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mult = 1 lr_start = 5e-6 lr_max = 1.25e-6 * GLOBAL_BATCH_SIZE lr_min = 1e-6 lr_ramp_ep = 5 lr_sus_ep = 0 lr_decay = 0.8 def lrfn(epoch): if epoch < lr_ramp_ep: lr =(lr_max - lr_start)/ lr_ramp_ep * epoch + lr_start elif epoch < lr_ramp_ep + lr_sus_ep: lr = lr_max else: lr =(lr_max - lr_min)* lr_decay**(epoch - lr_ramp_...
KNN.fit(x_train,x_test) KNN.score(y_train,y_test )
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CKPT_FOLDER = ".. /working/ckpt" if not os.path.exists(CKPT_FOLDER): os.mkdir(CKPT_FOLDER) folds = list(model_selection.KFold(n_splits=FOLDS, shuffle=True, random_state=SEED ).split(np.arange(15))) testiness = pd.read_csv(".. /input/spicv-spicy-vi-make-your-cv-more-testy/testiness.csv") TOTAL_POS = 581 + 2858 * INCL...
KNN.fit(x_train,x_test) model10pred = KNN.predict(y_train) submission10 = pd.DataFrame(columns = ['PassengerId','Survived']) submission10['PassengerId'] = result['PassengerId'] submission10['Survived'] = model10pred submission10.to_csv('KNN(No HT ).csv',index = False )
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VERBOSE = 1 PLOT = 1 histories = [] df_oof = pd.DataFrame() ; df_res = pd.DataFrame() t_start = time.time() for fold,(idTrain, idValid)in enumerate(folds): print(" print(( " print(" if DEVICE == 'TPU': if tpu: tf.tpu.experimental.initialize_tpu_system(tpu) fold_valid_files = [f for f in train_files if any([int(re.matc...
Models = ['Logistic Regression','Linear SVM','Polynomial SVM','Decision Tree','Gaussian NB','Multinomial NB','Random Forest Classifier','Gradient Boost Classifier','XG Boosting','K-Nearest Neighbors'] total = list(zip(Models,accuracy)) output1 = pd.DataFrame(total, columns = ['Models','Accuracy'])
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<merge>
vot_soft = VotingClassifier(estimators = estimator, voting ='soft') vot_soft.fit(x_train, x_test) y_pred = vot_soft.predict(y_train) vot_soft.score(y_train,y_test )
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xxx = df_oof.groupby('image_name' ).mean().reset_index().merge(df_base_train, on='image_name') print("OOF AUC(TTA %d)= %.4f" %(TTA, metrics.roc_auc_score(xxx.target, xxx.pred)) )<save_to_csv>
modelpred1 = vot_soft.predict(y_train) sub1 = pd.DataFrame(columns = ['PassengerId','Survived']) sub1['PassengerId'] = result['PassengerId'] sub1['Survived'] = modelpred1 sub1.to_csv('SoftVoting(NO HT ).csv',index = False )
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df_res.to_csv('.. /working/test_res_all.csv', index=False) df_oof.to_csv('.. /working/oof_res_all.csv', index=False )<save_to_csv>
vot_hard = VotingClassifier(estimators = estimator, voting ='hard') vot_hard.fit(x_train, x_test) y_pred = vot_hard.predict(y_train) vot_hard.score(y_train,y_test )
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