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del roberta_base_question_models, test_loader, tokenizer torch.cuda.empty_cache() gc.collect()<load_pretrained>
pd.pivot_table(training,index='Survived',columns='numeric_ticket', values = 'Ticket', aggfunc='count' )
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test_loader, tokenizer = get_test_loader(model_type="roberta-base", content="Answer", batch_size=32 )<predict_on_test>
training.Name.head(50) training['name_title'] = training.Name.apply(lambda x: x.split(',')[1].split('.')[0].strip())
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roberta_base_answer_models = create_roberta_base_answer_models(tokenizer) roberta_base_answer_preds = predict(roberta_base_answer_models, test_loader )<set_options>
training['name_title'].value_counts()
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del roberta_base_answer_models, test_loader, tokenizer torch.cuda.empty_cache() gc.collect()<concatenate>
all_data['cabin_multiple'] = all_data.Cabin.apply(lambda x: 0 if pd.isna(x)else len(x.split(' '))) all_data['cabin_adv'] = all_data.Cabin.apply(lambda x: str(x)[0]) all_data['numeric_ticket'] = all_data.Ticket.apply(lambda x: 1 if x.isnumeric() else 0) all_data['ticket_letters'] = all_data.Ticket.apply(lambda x: ''....
Titanic - Machine Learning from Disaster
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roberta_base_question_answer_preds = np.concatenate([roberta_base_question_preds, roberta_base_answer_preds], axis=1 )<load_pretrained>
scale = StandardScaler() all_dummies_scaled = all_dummies.copy() all_dummies_scaled[['Age','SibSp','Parch','norm_fare']]= scale.fit_transform(all_dummies_scaled[['Age','SibSp','Parch','norm_fare']]) all_dummies_scaled X_train_scaled = all_dummies_scaled[all_dummies_scaled.train_test == 1].drop(['train_test'], axis =1)...
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test_loader, _ = get_test_loader(model_type="bert-base-cased", content="Question", batch_size=32 )<predict_on_test>
from sklearn.model_selection import cross_val_score from sklearn.naive_bayes import GaussianNB from sklearn.linear_model import LogisticRegression from sklearn import tree from sklearn.neighbors import KNeighborsClassifier from sklearn.ensemble import RandomForestClassifier from sklearn.svm import SVC
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bert_base_cased_question_models = create_bert_base_cased_question_models() bert_base_cased_question_preds = predict(bert_base_cased_question_models, test_loader )<set_options>
gnb = GaussianNB() cv = cross_val_score(gnb,X_train_scaled,y_train,cv=5) print(cv) print(cv.mean() )
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del bert_base_cased_question_models, test_loader torch.cuda.empty_cache() gc.collect()<load_pretrained>
lr = LogisticRegression(max_iter = 2000) cv = cross_val_score(lr,X_train,y_train,cv=5) print(cv) print(cv.mean() )
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test_loader, _ = get_test_loader(model_type="bert-base-cased", content="Answer", batch_size=32 )<predict_on_test>
lr = LogisticRegression(max_iter = 2000) cv = cross_val_score(lr,X_train_scaled,y_train,cv=5) print(cv) print(cv.mean() )
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bert_base_cased_answer_models = create_bert_base_cased_answer_models() bert_base_cased_answer_preds = predict(bert_base_cased_answer_models, test_loader )<set_options>
dt = tree.DecisionTreeClassifier(random_state = 1) cv = cross_val_score(dt,X_train,y_train,cv=5) print(cv) print(cv.mean() )
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del bert_base_cased_answer_models, test_loader torch.cuda.empty_cache() gc.collect()<concatenate>
dt = tree.DecisionTreeClassifier(random_state = 1) cv = cross_val_score(dt,X_train_scaled,y_train,cv=5) print(cv) print(cv.mean() )
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bert_base_cased_question_answer_preds = np.concatenate([bert_base_cased_question_preds, bert_base_cased_answer_preds], axis=1 )<load_pretrained>
knn = KNeighborsClassifier() cv = cross_val_score(knn,X_train,y_train,cv=5) print(cv) print(cv.mean() )
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test_loader, _ = get_test_loader(model_type="bert-base-uncased", content="Question", batch_size=32 )<predict_on_test>
knn = KNeighborsClassifier() cv = cross_val_score(knn,X_train_scaled,y_train,cv=5) print(cv) print(cv.mean() )
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bert_base_uncased_question_models = create_bert_base_uncased_question_models() bert_base_uncased_question_preds = predict(bert_base_uncased_question_models, test_loader )<set_options>
rf = RandomForestClassifier(random_state = 1) cv = cross_val_score(rf,X_train,y_train,cv=5) print(cv) print(cv.mean() )
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del bert_base_uncased_question_models, test_loader torch.cuda.empty_cache() gc.collect()<load_pretrained>
rf = RandomForestClassifier(random_state = 1) cv = cross_val_score(rf,X_train_scaled,y_train,cv=5) print(cv) print(cv.mean() )
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test_loader, _ = get_test_loader(model_type="bert-base-uncased", content="Answer", batch_size=32 )<predict_on_test>
svc = SVC(probability = True) cv = cross_val_score(svc,X_train_scaled,y_train,cv=5) print(cv) print(cv.mean() )
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bert_base_uncased_answer_models = create_bert_base_uncased_answer_models() bert_base_uncased_answer_preds = predict(bert_base_uncased_answer_models, test_loader )<set_options>
xgb = XGBClassifier(random_state =1) cv = cross_val_score(xgb,X_train_scaled,y_train,cv=5) print(cv) print(cv.mean() )
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del bert_base_uncased_answer_models, test_loader torch.cuda.empty_cache() gc.collect()<concatenate>
voting_clf = VotingClassifier(estimators = [('lr',lr),('knn',knn),('rf',rf),('gnb',gnb),('svc',svc),('xgb',xgb)], voting = 'soft' )
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bert_base_uncased_question_answer_preds = np.concatenate([bert_base_uncased_question_preds, bert_base_uncased_answer_preds], axis=1 )<load_pretrained>
cv = cross_val_score(voting_clf,X_train_scaled,y_train,cv=5) print(cv) print(cv.mean() )
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test_loader, _ = get_test_loader(model_type="bert-base-cased", batch_size=32 )<predict_on_test>
voting_clf.fit(X_train_scaled,y_train) y_hat_base_vc = voting_clf.predict(X_test_scaled ).astype(int) basic_submission = {'PassengerId': test.PassengerId, 'Survived': y_hat_base_vc} base_submission = pd.DataFrame(data=basic_submission) base_submission.to_csv('base_submission.csv', index=False )
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bert_base_cased_models = create_bert_base_cased_models() bert_base_cased_preds = predict(bert_base_cased_models, test_loader )<set_options>
from sklearn.model_selection import GridSearchCV from sklearn.model_selection import RandomizedSearchCV
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del bert_base_cased_models, test_loader torch.cuda.empty_cache() gc.collect()<load_pretrained>
def clf_performance(classifier, model_name): print(model_name) print('Best Score: ' + str(classifier.best_score_)) print('Best Parameters: ' + str(classifier.best_params_))
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test_loader, _ = get_test_loader(model_type="bert-base-uncased", batch_size=32 )<predict_on_test>
lr = LogisticRegression() param_grid = {'max_iter' : [2000], 'penalty' : ['l1', 'l2'], 'C' : np.logspace(-4, 4, 20), 'solver' : ['liblinear']} clf_lr = GridSearchCV(lr, param_grid = param_grid, cv = 5, verbose = True, n_jobs = -1) best_clf_lr = clf_lr.fit(X_train_scaled,y_train) clf_performance(best_clf_lr,'Logistic ...
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bert_base_uncased_models = create_bert_base_uncased_models() bert_base_uncased_preds = predict(bert_base_uncased_models, test_loader )<set_options>
knn = KNeighborsClassifier() param_grid = {'n_neighbors' : [3,5,7,9], 'weights' : ['uniform', 'distance'], 'algorithm' : ['auto', 'ball_tree','kd_tree'], 'p' : [1,2]} clf_knn = GridSearchCV(knn, param_grid = param_grid, cv = 5, verbose = True, n_jobs = -1) best_clf_knn = clf_knn.fit(X_train_scaled,y_train) clf_perfor...
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del bert_base_uncased_models, test_loader torch.cuda.empty_cache() gc.collect()<define_variables>
svc = SVC(probability = True) param_grid = tuned_parameters = [{'kernel': ['rbf'], 'gamma': [.1,.5,1,2,5,10], 'C': [.1, 1, 10, 100, 1000]}, {'kernel': ['linear'], 'C': [.1, 1, 10, 100, 1000]}, {'kernel': ['poly'], 'degree' : [2,3,4,5], 'C': [.1, 1, 10, 100, 1000]}] clf_svc = GridSearchCV(svc, param_grid = param_grid, ...
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preds =(( bert_base_uncased_preds + bert_base_uncased_question_answer_preds)/2.0 \ +(xlnet_base_cased_preds + xlnet_base_cased_question_answer_preds)/2.0 \ +(bert_base_cased_preds + bert_base_cased_question_answer_preds)/2.0 \ +(roberta_base_preds + roberta_base_question_answer_preds)/2.0)/4.0 <save_to_csv>
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sub[TARGET_COLUMNS] = bert_base_uncased_question_answer_preds sub.to_csv('submission_bert_base_uncased.csv', index=False) sub[TARGET_COLUMNS] =roberta_base_preds sub.to_csv('submission_roberta_base.csv', index=False) <prepare_output>
rf = RandomForestClassifier(random_state = 1) param_grid = {'n_estimators': [400,450,500,550], 'criterion':['gini','entropy'], 'bootstrap': [True], 'max_depth': [15, 20, 25], 'max_features': ['auto','sqrt', 10], 'min_samples_leaf': [2,3], 'min_samples_split': [2,3]} clf_rf = GridSearchCV(rf, param_grid = param_grid, c...
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sub[TARGET_COLUMNS] = preds<load_from_csv>
best_rf = best_clf_rf.best_estimator_.fit(X_train_scaled,y_train) feat_importances = pd.Series(best_rf.feature_importances_, index=X_train_scaled.columns) feat_importances.nlargest(20 ).plot(kind='barh' )
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test = pd.read_csv(f'{DATA_DIR}/test.csv' )<merge>
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test = test.set_index('qa_id' ).join(sub.set_index('qa_id'))<normalization>
xgb = XGBClassifier(random_state = 1) param_grid = { 'n_estimators': [450,500,550], 'colsample_bytree': [0.75,0.8,0.85], 'max_depth': [None], 'reg_alpha': [1], 'reg_lambda': [2, 5, 10], 'subsample': [0.55, 0.6,.65], 'learning_rate':[0.5], 'gamma':[.5,1,2], 'min_child_weight':[0.01], 'sampling_method': ['uniform'] } cl...
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def postprocessing(oof_df): scaler = MinMaxScaler() type_one_column_list = [ 'question_conversational', \ 'question_has_commonly_accepted_answer', \ 'question_not_really_a_question', \ 'question_type_choice', \ 'question_type_compare', \ 'question_type_consequence', \ 'question_type_definition', \ 'question_type_entity...
y_hat_xgb = best_clf_xgb.best_estimator_.predict(X_test_scaled ).astype(int) xgb_submission = {'PassengerId': test.PassengerId, 'Survived': y_hat_xgb} submission_xgb = pd.DataFrame(data=xgb_submission) submission_xgb.to_csv('xgb_submission3.csv', index=False )
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test = postprocessing(test )<count_values>
best_lr = best_clf_lr.best_estimator_ best_knn = best_clf_knn.best_estimator_ best_svc = best_clf_svc.best_estimator_ best_rf = best_clf_rf.best_estimator_ best_xgb = best_clf_xgb.best_estimator_ voting_clf_hard = VotingClassifier(estimators = [('knn',best_knn),('rf',best_rf),('svc',best_svc)], voting = 'hard') voting...
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for column in TARGET_COLUMNS: print(test[column].value_counts() )<prepare_output>
params = {'weights' : [[1,1,1],[1,2,1],[1,1,2],[2,1,1],[2,2,1],[1,2,2],[2,1,2]]} vote_weight = GridSearchCV(voting_clf_soft, param_grid = params, cv = 5, verbose = True, n_jobs = -1) best_clf_weight = vote_weight.fit(X_train_scaled,y_train) clf_performance(best_clf_weight,'VC Weights') voting_clf_sub = best_clf_weig...
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sub = test[TARGET_COLUMNS].reset_index()<feature_engineering>
voting_clf_hard.fit(X_train_scaled, y_train) voting_clf_soft.fit(X_train_scaled, y_train) voting_clf_all.fit(X_train_scaled, y_train) voting_clf_xgb.fit(X_train_scaled, y_train) best_rf.fit(X_train_scaled, y_train) y_hat_vc_hard = voting_clf_hard.predict(X_test_scaled ).astype(int) y_hat_rf = best_rf.predict(X_te...
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sub[ sub[TARGET_COLUMNS] > 1.0] = 1.0<load_from_csv>
final_data = {'PassengerId': test.PassengerId, 'Survived': y_hat_rf} submission = pd.DataFrame(data=final_data) final_data_2 = {'PassengerId': test.PassengerId, 'Survived': y_hat_vc_hard} submission_2 = pd.DataFrame(data=final_data_2) final_data_3 = {'PassengerId': test.PassengerId, 'Survived': y_hat_vc_soft} submiss...
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test = pd.read_csv(f'{DATA_DIR}/test.csv' )<define_variables>
comparison['difference_rf_vc_hard'] = comparison.apply(lambda x: 1 if x.Survived_vc_hard != x.Survived_rf else 0, axis =1) comparison['difference_soft_hard'] = comparison.apply(lambda x: 1 if x.Survived_vc_hard != x.Survived_vc_soft else 0, axis =1) comparison['difference_hard_all'] = comparison.apply(lambda x: 1 if ...
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n=test['url'].apply(lambda x:(( 'ell.stackexchange.com' in x)or('english.stackexchange.com' in x)) ).tolist() spelling=[] for x in n: if x: spelling.append(0.5) else: spelling.append(0.)<prepare_output>
comparison.difference_hard_all.value_counts()
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sub['question_type_spelling'] = spelling<count_values>
submission.to_csv('submission_rf.csv', index =False) submission_2.to_csv('submission_vc_hard.csv',index=False) submission_3.to_csv('submission_vc_soft.csv', index=False) submission_4.to_csv('submission_vc_all.csv', index=False) submission_5.to_csv('submission_vc_xgb2.csv', index=False )
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sub['question_type_spelling'].value_counts()<save_to_csv>
train, test = pd.read_csv('.. /input/titanic/train.csv'), \ pd.read_csv('.. /input/titanic/test.csv' )
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sub.to_csv('submission.csv', index=False )<save_to_csv>
train.isna().sum()
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sub.to_csv('submission.csv', index=False )<define_variables>
test.isna().sum()
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USE_SAMPLE = False USE_ONLY_SELECTED_FOLDS = True selected_folds = [0,1,2] WEIGHTS = 'softmax' ROUND = True USE_LGB = True USE_XGB = False USE_3SPLIT_BERT = False USE_TEST_SAFETY_ADJUSTMENTS = True beta = 18.5<install_modules>
datasets = [train, test] for d in datasets: for i in list(d.columns): if(d[i].notnull().sum() / d.shape[0] <=.5)\ or i in ['Name', 'Ticket']: d.drop(i, axis=1, inplace=True) elif d[i].dtype == float or train[i].dtype == int: d[i] = d[i].fillna(d[i].mean()) else: d[i] = d[i].fillna(d[i].mode() [0] )
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!pip install.. /input/sacremoses0038 > /dev/null sys.path.insert(0, ".. /input/tokenizers0011/" )<install_modules>
y_train = train['Survived'] x_train, x_test = train.drop('Survived', axis=1), test x_train.drop('PassengerId', axis=1, inplace=True )
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!pip install.. /input/transformers241 > /dev/null --no-dependencies<install_modules>
datasets = [x_train, x_test] for d in datasets: d['Embarked'] = d['Embarked'].fillna('S') d['Embarked'] = d['Embarked'].map({ 'S': 0, 'C': 1, 'Q': 2 }) d['Sex'] = d['Sex'].map({ 'male': 0, 'female': 1 }) d['FamilySize'] = d['SibSp'] + d['Parch'] + 1
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!pip install.. /input/fastparquet/fastparquet-0.3.2-cp36-cp36m-linux_x86_64.whl > /dev/null --no-dependencies<install_modules>
scaler = StandardScaler() for d in datasets: for c in ['Age', 'Fare', 'Parch', \ 'Pclass', 'SibSp', 'FamilySize']: d[c] = d[c].astype(float) d[c] = scaler.fit_transform(d[c].values.reshape(-1, 1))
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!pip install.. /input/fastparquet/thrift-0.13.0-cp36-cp36m-linux_x86_64.whl > /dev/null --no-dependencies<set_options>
model = tf.keras.models.Sequential([ tf.keras.layers.Flatten() , tf.keras.layers.Dense(32, input_dim=x_train.shape[1], activation='relu'), tf.keras.layers.Dropout(0.4), tf.keras.layers.Dense(32, activation='relu'), tf.keras.layers.Dense(1, activation='sigmoid') ]) model.compile( loss='binary_crossentropy', optimizer...
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np.set_printoptions(suppress=True) print(tf.__version__) pd.set_option('display.max_colwidth', 500) pd.set_option('display.max_rows', 500) pd.set_option('display.max_columns', 500) COLOR = 'black' matplotlib.rcParams['text.color'] = COLOR matplotlib.rcParams['axes.labelcolor'] = COLOR matplotlib.rcParams['xtick.co...
num_epochs = 42 history = model.fit(x_train, y_train, epochs=num_epochs, \ batch_size=50, validation_split = 0.2 )
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PATH = '.. /input/google-quest-challenge/' BERT_PATH = '.. /input/bert-base-uncased-huggingface-transformer/' GPT2_PATH = '.. /input/gpt2-hugginface-pretrained/' XLNET_PATH = '.. /input/xlnet-huggingface-pretrained/' MAX_SEQUENCE_LENGTH = 512 df_train = pd.read_csv(PATH+'train.csv') df_test = pd.read_csv(PATH+'test.cs...
scores = model.evaluate(x_train, y_train, batch_size=32 )
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def save_file(var, name): pickle.dump(var, open(f"/kaggle/working/{name}.p", "wb"))<categorify>
print(f'Loss: {scores[0]} Accuracy: {scores[1]}' )
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def _convert_to_transformer_inputs(title, question, answer, tokenizer, max_sequence_length): def return_id(str1, str2, truncation_strategy, length): inputs = tokenizer.encode_plus(str1, str2, add_special_tokens=True, max_length=length, truncation_strategy=truncation_strategy) input_ids = inputs["input_ids"] input_ma...
x_test_without_ids = x_test.drop('PassengerId', axis=1) y_predicted = model.predict(x_test_without_ids) y_test =(y_predicted > 0.5 ).astype(int ).reshape(x_test_without_ids.shape[0] )
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xlnetcfg = {'architectures': ['XLNetLMHeadModel'], 'attn_type': 'bi', 'bi_data': False, 'bos_token_id': 0, 'clamp_len': -1, 'd_head': 64, 'd_inner': 3072, 'd_model': 768, 'do_sample': False, 'dropout': 0.1, 'end_n_top': 5, 'eos_token_ids': 0, 'ff_activation': 'gelu', 'finetuning_task': None, 'id2label': {0: 'LABEL_0', ...
results = pd.DataFrame() results['PassengerId'] = x_test['PassengerId'] results['Survived'] = y_test results.to_csv('submission.csv', index=False )
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def compute_spearmanr_ignore_nan(trues, preds): rhos = [] for tcol, pcol in zip(np.transpose(trues), np.transpose(preds)) : rhos.append(spearmanr(tcol, pcol ).correlation) return np.nanmean(rhos) def create_nn_model(output_len, model_type): q_id = tf.keras.layers.Input(( MAX_SEQUENCE_LENGTH,), dtype=tf.int32) q_mask...
warnings.filterwarnings('ignore' )
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question_only = ['question_asker_intent_understanding', 'question_body_critical', 'question_conversational', 'question_expect_short_answer', 'question_fact_seeking', 'question_has_commonly_accepted_answer', 'question_interestingness_others', 'question_interestingness_self', 'question_multi_intent', 'question_not_really...
%matplotlib inline mpl.style.use('ggplot') sns.set_style('white') pylab.rcParams['figure.figsize'] = 12,8
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answer_and_question = ['answer_level_of_information', 'answer_helpful','answer_plausible','answer_relevance','answer_satisfaction']<define_variables>
data_raw = pd.read_csv('.. /input/train.csv') data_val = pd.read_csv('.. /input/test.csv') data1 = data_raw.copy(deep = True) data_cleaner = [data1, data_val] print(data_raw.info()) data_raw.sample(10 )
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answer_only = ['answer_type_instructions', 'answer_type_procedure', 'answer_type_reason_explanation', 'answer_well_written']<define_variables>
for dataset in data_cleaner: 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) drop_column = ['PassengerId','Cabin', 'Ticket'] data1.drop(drop_column, axis=1, inp...
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AQ_and_AO = answer_and_question + answer_only<split>
for dataset in data_cleaner: dataset['FamilySize'] = dataset ['SibSp'] + dataset['Parch'] + 1 dataset['IsAlone'] = 1 dataset['IsAlone'].loc[dataset['FamilySize'] > 1] = 0 dataset['Title'] = dataset['Name'].str.split(", ", expand=True)[1].str.split(".", expand=True)[0] dataset['FareBin'] = pd.qcut(dataset['Fare'], 4) d...
Titanic - Machine Learning from Disaster
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gkf10 = GroupKFold(n_splits=10 ).split(X=df_train.question_body, groups=df_train.question_body) gkf5 = GroupKFold(n_splits=5 ).split(X=df_train.question_body, groups=df_train.question_body) common_validation_idx = [] val10 = [] val5 = [] val10_fold0 = None for fold,(train_idx, valid_idx)in enumerate(gkf10): if fold i...
label = LabelEncoder() for dataset in data_cleaner: dataset['Sex_Code'] = label.fit_transform(dataset['Sex']) dataset['Embarked_Code'] = label.fit_transform(dataset['Embarked']) dataset['Title_Code'] = label.fit_transform(dataset['Title']) dataset['AgeBin_Code'] = label.fit_transform(dataset['AgeBin']) dataset['Far...
Titanic - Machine Learning from Disaster
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def predict_nn(train_data, valid_data, test_data, weights, model_type): K.clear_session() model = create_nn_model(train_data[1].shape[1], model_type) model.load_weights(weights) trn_preds = np.zeros(train_data[1].shape) val_preds = model.predict(valid_data[0]) print(f'Lengths of test list is {len(test_data)}') tes...
train1_x, test1_x, train1_y, test1_y = model_selection.train_test_split(data1[data1_x_calc], data1[Target], random_state = 0) train1_x_bin, test1_x_bin, train1_y_bin, test1_y_bin = model_selection.train_test_split(data1[data1_x_bin], data1[Target] , random_state = 0) train1_x_dummy, test1_x_dummy, train1_y_dummy, tes...
Titanic - Machine Learning from Disaster
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tokenizer = XLNetTokenizer.from_pretrained('.. /input/gq-manual-uploads/xlnet tokenizer from colab/') USING_PAD_TOKEN = False outputs = compute_output_arrays(df_train, output_categories) inputs = compute_input_arrays(df_train, input_categories, tokenizer, MAX_SEQUENCE_LENGTH) test_inputs = compute_input_arrays(df_te...
plt.figure(figsize=[16,12]) plt.subplot(231) plt.boxplot(x=data1['Fare'], showmeans = True, meanline = True) plt.title('Fare Boxplot') plt.ylabel('Fare($)') plt.subplot(232) plt.boxplot(data1['Age'], showmeans = True, meanline = True) plt.title('Age Boxplot') plt.ylabel('Age(Years)') plt.subplot(233) plt.boxp...
Titanic - Machine Learning from Disaster
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model_roor_dir = 'gq-xlnet-pretrained' MOD_DATA_STUCTURE = '2 split' n_splits = 10 xlnet_trn, xlnet_val, xlnet_tst = get_nn_all_outputs('XLNET' )<load_pretrained>
MLA = [ ensemble.AdaBoostClassifier() , ensemble.BaggingClassifier() , ensemble.ExtraTreesClassifier() , ensemble.GradientBoostingClassifier() , ensemble.RandomForestClassifier() , gaussian_process.GaussianProcessClassifier() , linear_model.LogisticRegressionCV() , linear_model.PassiveAggressiveClassifier() , linear_mo...
Titanic - Machine Learning from Disaster
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tokenizer = BertTokenizer.from_pretrained(BERT_PATH+'bert-base-uncased-vocab.txt') USING_PAD_TOKEN = True outputs = compute_output_arrays(df_train, output_categories) inputs = compute_input_arrays(df_train, input_categories, tokenizer, MAX_SEQUENCE_LENGTH) test_inputs = compute_input_arrays(df_test, input_categories...
for index, row in data1.iterrows() : if random.random() >.5: data1.set_value(index, 'Random_Predict', 1) else: data1.set_value(index, 'Random_Predict', 0) data1['Random_Score'] = 0 data1.loc[(data1['Survived'] == data1['Random_Predict']), 'Random_Score'] = 1 print('Coin Flip Model Accuracy: {:.2f}%'.format(data1['Ran...
Titanic - Machine Learning from Disaster
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model_roor_dir = 'gq-bert-pretrained' MOD_DATA_STUCTURE = '2 split' n_splits = 10 bert_trn, bert_val, bert_tst = get_nn_all_outputs('BERT' )<define_variables>
pivot_female = data1[data1.Sex=='female'].groupby(['Sex','Pclass', 'Embarked','FareBin'])['Survived'].mean() print('Survival Decision Tree w/Female Node: ',pivot_female) pivot_male = data1[data1.Sex=='male'].groupby(['Sex','Title'])['Survived'].mean() print(' Survival Decision Tree w/Male Node: ',pivot_male )
Titanic - Machine Learning from Disaster
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model_roor_dir = '3rd-training-2nd-gen-bert-download-from-gdrive' MOD_DATA_STUCTURE = '3 split' n_splits = 10 selected_folds = [0] bert_trn_3split, bert_val_3split, bert_tst_3split = get_nn_all_outputs('BERT') selected_folds = [0,1,2]<define_variables>
def mytree(df): Model = pd.DataFrame(data = {'Predict':[]}) male_title = ['Master'] for index, row in df.iterrows() : Model.loc[index, 'Predict'] = 0 if(df.loc[index, 'Sex'] == 'female'): Model.loc[index, 'Predict'] = 1 if(( df.loc[index, 'Sex'] == 'female')& (df.loc[index, 'Pclass'] == 3)& (df.loc[index, 'Embarked'...
Titanic - Machine Learning from Disaster
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model_roor_dir = '2nd-training-1st-gen-bert-download-from-gdrive' MOD_DATA_STUCTURE = '2 split' n_splits = 5 bert_trn_5fold, bert_val_5fold, bert_tst_5fold = get_nn_all_outputs('BERT' )<load_pretrained>
dtree = tree.DecisionTreeClassifier(random_state = 0) base_results = model_selection.cross_validate(dtree, data1[data1_x_bin], data1[Target], cv = cv_split) dtree.fit(data1[data1_x_bin], data1[Target]) print('BEFORE DT Parameters: ', dtree.get_params()) print("BEFORE DT Training w/bin score mean: {:.2f}".format(bas...
Titanic - Machine Learning from Disaster
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tokenizer = GPT2Tokenizer.from_pretrained('.. /input/gq-manual-uploads/gpt2 config from colab/') USING_PAD_TOKEN = False outputs = compute_output_arrays(df_train, output_categories) inputs = compute_input_arrays(df_train, input_categories, tokenizer, MAX_SEQUENCE_LENGTH) test_inputs = compute_input_arrays(df_test, i...
dot_data = tree.export_graphviz(dtree, out_file=None, feature_names = data1_x_bin, class_names = True, filled = True, rounded = True) graph = graphviz.Source(dot_data) graph
Titanic - Machine Learning from Disaster
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model_roor_dir = 'gq-gpt2-pretrained' MOD_DATA_STUCTURE = '2 split' n_splits = 10 gpt2_trn, gpt2_val, gpt2_tst = get_nn_all_outputs('GPT2' )<split>
vote_est = [ ('ada', ensemble.AdaBoostClassifier()), ('bc', ensemble.BaggingClassifier()), ('etc',ensemble.ExtraTreesClassifier()), ('gbc', ensemble.GradientBoostingClassifier()), ('rfc', ensemble.RandomForestClassifier()), ('gpc', gaussian_process.GaussianProcessClassifier()), ('lr', linear_model.LogisticRegres...
Titanic - Machine Learning from Disaster
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model_roor_dir = '2nd-training-1st-gen-gpt-download-from-gdrive' MOD_DATA_STUCTURE = '2 split' n_splits = 5 gpt2_trn_5fold, gpt2_val_5fold, gpt2_tst_5fold = get_nn_all_outputs('GPT2' )<feature_engineering>
grid_n_estimator = [10, 50, 100, 300] grid_ratio = [.1,.25,.5,.75, 1.0] grid_learn = [.01,.03,.05,.1,.25] grid_max_depth = [2, 4, 6, 8, 10, None] grid_min_samples = [5, 10,.03,.05,.10] grid_criterion = ['gini', 'entropy'] grid_bool = [True, False] grid_seed = [0] grid_param = [ [{ 'n_estimators': grid_n_estimator, 'lea...
Titanic - Machine Learning from Disaster
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if USE_LGB: def remove_articles(df): for i in ['question_title', 'question_body', 'answer']: df.loc[:,f'{i}_orig'] = df.loc[:,i] for i in ['question_title', 'question_body', 'answer']: df.loc[:,i] = df.loc[:,i].apply(lambda x: x.replace(' the ',' ' ).replace(' a ',' ' ).replace(' an ',' ')) return df df_train = remove_...
grid_hard = ensemble.VotingClassifier(estimators = vote_est , voting = 'hard') grid_hard_cv = model_selection.cross_validate(grid_hard, data1[data1_x_bin], data1[Target], cv = cv_split) grid_hard.fit(data1[data1_x_bin], data1[Target]) grid_soft = ensemble.VotingClassifier(estimators = vote_est , voting = 'soft') gr...
Titanic - Machine Learning from Disaster
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if USE_LGB: df_train.loc[:,'q_users_host'] = df_train.apply(lambda x: x.question_user_name + x.host, axis=1) df_train.loc[:,'a_users_host'] = df_train.apply(lambda x: x.answer_user_name + x.host, axis=1) df_test.loc[:,'q_users_host'] = df_test.apply(lambda x: x.question_user_name + x.host, axis=1) df_test.loc[:,'a_u...
submit.to_csv("titanic_submission.csv", index = False )
Titanic - Machine Learning from Disaster
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if USE_LGB: word_categories = ['adjectives','verbs','nouns','list_maker','digits','modals','posessives','persionals','interjection','direction','past_verb'] adjectives = ['JJ','JJR','JJS','RB','RBR','RBS'] verbs = ['VB','VBD','VBG','VBN','VBP','VBZ'] nouns = ['NN','NNS','NNP','NNPS'] list_maker = ['LS'] digits = ['CD']...
train = pd.read_csv('.. /input/train.csv') test = pd.read_csv('.. /input/test.csv') train.head()
Titanic - Machine Learning from Disaster
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if USE_LGB: def get_uids_all(df): df.loc[:,'answer_uid'] = df.loc[:,'answer_user_page'].apply(lambda x: int(x.split('/')[-1])) df.loc[:,'question_uid'] = df.loc[:,'question_user_page'].apply(lambda x: int(x.split('/')[-1])) for idx in range(df.shape[0]): split = [i for i in df.loc[idx,'url'].split('/')if i.isdigit() ] ...
train.isnull().sum()
Titanic - Machine Learning from Disaster
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if USE_LGB: se_path = ".. /input/stackexchange-data" se_posts = pd.read_parquet(se_path+"/stackexchange_posts.parquet.gzip", engine='fastparquet') def get_post_info_se(df): new_other_features = [] new_features = ['Score','ViewCount','AnswerCount','CommentCount','FavoriteCount','Tags'] df = df.merge(se_posts.loc[:,['Id...
test.isnull().sum()
Titanic - Machine Learning from Disaster
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if USE_LGB: def is_answer_accepted(df): for i in df.loc[(df.host=='stackoverflow.com')& ~(df.QPAGE_accepted_answer_id.isna()),:].index.values: df.loc[i,'answer_accepted'] = 1 if df.loc[i, 'answer_uid'] == df.loc[i, 'QPAGE_accepted_answer_id'] else 0 for i in df.loc[(df.host!='stackoverflow.com')& ~(df.AcceptedAnswerId....
test.isnull().sum()
Titanic - Machine Learning from Disaster
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if USE_LGB: class Base_Model(object): def __init__(self, train_df, test_df, features, categoricals=[], n_splits=5, verbose=True, target=None, predict_test=True): self.train_df = train_df self.test_df = test_df self.features = features self.n_splits = 10 self.categoricals = categoricals self.target = target self.cv = se...
train_test_data = [train, test]
Titanic - Machine Learning from Disaster
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if USE_LGB: one_lgb_model = pickle.load(open(f'.. /input/gq-lgb/question_opinion_seeking/question_opinion_seeking_0.p', 'rb')) lgb_pretrained_features = one_lgb_model.feature_name() for i in lgb_pretrained_features: if i not in other_features: print(f'{i} not in other features here, adding zeros') df_train.loc[:, i] =...
train.groupby('Pclass' ).mean()
Titanic - Machine Learning from Disaster
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%%time if USE_LGB: ACTUAL_FOLDS = 3 lgb_val_scores = [] n_output_categories = len(output_categories) lgb_val_outputs_all = [] lgb_val_preds_all = [] lgb_tst_preds_all = [] for idx, i in enumerate(output_categories, 1): lgb_model = Lgb_Model(df_train, df_test, lgb_pretrained_features, target=i, verbose=False) lgb_val_...
encoder=LabelBinarizer() train['Sex']=encoder.fit_transform(train['Sex']) test['Sex']=encoder.fit_transform(test['Sex']) train.head(10)
Titanic - Machine Learning from Disaster
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if USE_XGB: one_xgb_model = pickle.load(open(f'.. /input/gq-xgb/question_opinion_seeking/question_opinion_seeking_0.p', 'rb')) xgb_pretrained_features = one_xgb_model.feature_names for i in xgb_pretrained_features: if i not in other_features: print(f'{i} not in other features here, adding zeros') df_train.loc[:, i] = ...
for dataset in train_test_data: dataset['Name'] = dataset['Name'].str.extract('([A-Za-z]+)\.', expand=True )
Titanic - Machine Learning from Disaster
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%%time if USE_XGB: ACTUAL_FOLDS = 3 xgb_val_scores = [] n_output_categories = len(output_categories) xgb_val_outputs_all = [] xgb_val_preds_all = [] xgb_tst_preds_all = [] for idx, i in enumerate(output_categories, 1): xgb_model = Xgb_Model(df_train, df_test, xgb_pretrained_features, target=i, verbose=False) xgb_val_...
train['Name'].value_counts()
Titanic - Machine Learning from Disaster
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def get_rounding(ys, preds): rounding_types = ['Normal', 'Ceil', 'Floor'] rounding_funcs = [np.round, np.ceil, np.floor] dec_places = [1,2,3,4,5] score = spearmanr(ys, preds ).correlation if np.isnan(score): score=-100 best_result = {'Type':'No rounding','DP':0, 'func':None} for r_type, r_func in zip(rounding_types, ro...
replace_name = {'Mlle': 'Miss', 'Major': 'Mr', 'Col': 'Mr', 'Sir': 'Mr', 'Don': 'Mr', 'Mme': 'Miss', 'Jonkheer': 'Mr', 'Lady': 'Mrs', 'Capt': 'Mr', 'Countess': 'Mrs', 'Ms': 'Miss', 'Dona': 'Mrs'}
Titanic - Machine Learning from Disaster
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def inverse_spearman_r(weights, ys, preds): mixed_val_preds = np.array([i*w for i,w in zip(preds, weights)] ).sum(axis=0) score = spearmanr(ys, mixed_val_preds ).correlation if np.isnan(score): score=-100 return -score def optimize_mixing_weights(ys, preds): naive_mix = np.array(preds ).mean(axis=0) score = spearmanr...
train.replace({'Name' : replace_name}, inplace=True )
Titanic - Machine Learning from Disaster
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val10_common = [np.where(val10==i)[0][0] for i in common_validation_idx] val5_common = [np.where(val5==i)[0][0] for i in common_validation_idx]<define_variables>
test.replace({'Name' : replace_name}, inplace=True )
Titanic - Machine Learning from Disaster
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val10_fold0_common = [np.where(val10_fold0==i)[0] for i in common_validation_idx] val10_fold0_common = [i[0] for i in val10_fold0_common if len(i)>0]<load_from_csv>
train[['Name', 'Survived']].groupby(['Name'], as_index=False ).mean()
Titanic - Machine Learning from Disaster
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%%time weights_all = [] weights_for_rounding = [] scores_all = [] df_sub = pd.read_csv(PATH+'sample_submission.csv') bestonly_raw_scores = [] best_rounded_scores = [] best_weighted_scores = [] if USE_SAMPLE: df_sub=df_sub.iloc[0:round(0.1*df_sub.shape[0]),:] if USE_LGB: if len(lgb_val_scores)!= 30: USE_LGB=False print...
score_name = {"Rev" : 0, "Mr" : 1, "Dr" : 2, "Master" : 3, "Miss" : 4, "Mrs" : 5} for dataset in train_test_data: dataset['Name'] = dataset['Name'].map(score_name) train.head(10 )
Titanic - Machine Learning from Disaster
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save_file(weights_all, 'weights_all') save_file(weights_for_rounding, 'weights_all') save_file(scores_all, 'weights_all' )<data_type_conversions>
titles = [0,1,2,3,4,5] for title in titles: age_to_impute = train.groupby('Name')['Age'].median() [titles.index(title)] train.loc[(train['Age'].isnull())&(train['Name'] == title), 'Age'] = age_to_impute train['Age'].isnull().sum()
Titanic - Machine Learning from Disaster
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np.max(df_sub.iloc[:,1:].to_numpy().flatten()), np.min(df_sub.iloc[:,1:].to_numpy().flatten()), df_sub.shape<prepare_output>
for title in titles: age_to_impute = train.groupby('Name')['Age'].median() [titles.index(title)] test.loc[(test['Age'].isnull())&(test['Name'] == title), 'Age'] = age_to_impute test['Age'].isnull().sum()
Titanic - Machine Learning from Disaster
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np.mean(bestonly_raw_scores), np.min(bestonly_raw_scores), np.max(bestonly_raw_scores), len(bestonly_raw_scores )<prepare_output>
for dataset in train_test_data: dataset['Age_bin'] = pd.cut(train['Age'], 5 )
Titanic - Machine Learning from Disaster
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np.mean(best_weighted_scores), np.min(best_weighted_scores), np.max(best_weighted_scores), len(best_weighted_scores )<compute_test_metric>
train[['Age_bin','Survived']].groupby(['Age_bin'], as_index=False ).mean().sort_values(by='Survived' )
Titanic - Machine Learning from Disaster
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np.mean(best_rounded_scores), np.min(best_rounded_scores), np.max(best_rounded_scores), len(best_rounded_scores )<define_variables>
group_names = [4,1,3,2,0] for dataset in train_test_data: dataset['Age'] = pd.cut(train['Age'], 5, labels=group_names )
Titanic - Machine Learning from Disaster
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[(c,np.round(s,3)) for c,s in zip(output_categories, scores_all)]<define_variables>
train[['Age','Survived']].groupby(['Age'], as_index=False ).mean().sort_values(by='Survived' )
Titanic - Machine Learning from Disaster
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[(c,np.round(s,3)) for c,s in zip(output_categories, weights_all)]<import_modules>
for dataset in train_test_data: dataset['Embarked'] = dataset['Embarked'].fillna('S' )
Titanic - Machine Learning from Disaster
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import os import re import gc import pickle import random import lightgbm as lgbm import numpy as np import pandas as pd<import_modules>
train[['Embarked','Survived']].groupby(['Embarked'], as_index=False ).mean().sort_values(by='Survived' )
Titanic - Machine Learning from Disaster
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import numpy as np import pandas as pd import os import numpy as np import matplotlib.pyplot as plt import gensim from nltk.corpus import brown import random from sklearn.model_selection import KFold import lightgbm as lgb import gc from keras.callbacks.callbacks import EarlyStopping from sklearn.feature_extraction.tex...
embarked_mapping = {"S": 0, "Q": 1, "C": 2} for dataset in train_test_data: dataset['Embarked'] = dataset['Embarked'].map(embarked_mapping )
Titanic - Machine Learning from Disaster
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np.set_printoptions(suppress=True) tokenizer = transformers.DistilBertTokenizer.from_pretrained(".. /input/distilbertbaseuncased/") model = transformers.DistilBertModel.from_pretrained(".. /input/distilbertbaseuncased/" )<load_from_csv>
train['FamilySize'] = train['SibSp'] + train['Parch'] + 1 test['FamilySize'] = test['SibSp'] + test['Parch'] + 1
Titanic - Machine Learning from Disaster
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PATH = '.. /input/google-quest-challenge/' BERT_PATH = '.. /input/bert-base-from-tfhub/bert_en_uncased_L-12_H-768_A-12' tokenizer = transformers.DistilBertTokenizer.from_pretrained(BERT_PATH+'/assets/vocab.txt') MAX_SEQUENCE_LENGTH = 512 train = df_train = pd.read_csv(PATH+'train.csv') test = df_test = pd.read_csv(PA...
train[['FamilySize','Survived']].groupby(['FamilySize'], as_index=False ).mean().sort_values(by='Survived' )
Titanic - Machine Learning from Disaster
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seed(42) tf.random.set_seed(42) random.seed(42 )<define_variables>
replace_family = {8 : 0, 11 : 0, 6:1, 5: 2, 1:3, 7:4, 2 : 5, 3 :6, 4:7}
Titanic - Machine Learning from Disaster
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data_dir = '.. /input/google-quest-challenge/'<define_variables>
for dataset in train_test_data: dataset['FamilySize'] = dataset['FamilySize'].apply(lambda x: replace_family.get(x))
Titanic - Machine Learning from Disaster
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targets = [ 'question_asker_intent_understanding', 'question_body_critical', 'question_conversational', 'question_expect_short_answer', 'question_fact_seeking', 'question_has_commonly_accepted_answer', 'question_interestingness_others', 'question_interestingness_self', 'question_multi_intent', 'question_not_really_a_qu...
test['Fare'].fillna(train['Fare'].median() , inplace = True )
Titanic - Machine Learning from Disaster
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gc.collect() tfidf = TfidfVectorizer(ngram_range=(1, 3)) tsvd = TruncatedSVD(n_components = 60) tfidf_question_title = tfidf.fit_transform([simple_prepro_tfidf(l)for l in tqdm.tqdm(train["question_title"].values)]) tfidf_question_title_test = tfidf.transform([simple_prepro_tfidf(l)for l in tqdm.tqdm(test["question_ti...
for dataset in train_test_data: dataset['Fare_bin'] = pd.cut(train['Fare'], 4 )
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w2v_model = gensim.models.Word2Vec(brown.sents() )<categorify>
train[['Fare_bin','Survived']].groupby(['Fare_bin'], as_index=False ).mean().sort_values(by='Survived' )
Titanic - Machine Learning from Disaster
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def get_word_embeddings(text): np.random.seed(abs(hash(text)) %(10 ** 8)) words = simple_prepro(text) vectors = np.zeros(( len(words),100)) if len(words)==0: vectors = np.zeros(( 1,100)) for i,word in enumerate(simple_prepro(text)) : try: vectors[i]=w2v_model[word] except: vectors[i]=np.random.uniform(-0.01, 0.01,100)...
train[['Fare','Survived']].groupby(['Fare'], as_index=False ).mean()
Titanic - Machine Learning from Disaster