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def get_bureau_processed(bureau): bureau['BUREAU_ENDDATE_FACT_DIFF'] = bureau['DAYS_CREDIT_ENDDATE'] - bureau['DAYS_ENDDATE_FACT'] bureau['BUREAU_CREDIT_FACT_DIFF'] = bureau['DAYS_CREDIT'] - bureau['DAYS_ENDDATE_FACT'] bureau['BUREAU_CREDIT_ENDDATE_DIFF'] = bureau['DAYS_CREDIT'] - bureau['DAYS_CREDIT_ENDDATE'] bureau['...
corr_feature = ['cont6','cont7','cont8','cont9','cont10','cont11','cont12','cont13'] corr_in = train[corr_feature]
Tabular Playground Series - Jan 2021
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def get_bureau_day_amt_agg(bureau): bureau_agg_dict = { 'SK_ID_BUREAU':['count'], 'DAYS_CREDIT':['min', 'max', 'mean'], 'CREDIT_DAY_OVERDUE':['min', 'max', 'mean'], 'DAYS_CREDIT_ENDDATE':['min', 'max', 'mean'], 'DAYS_ENDDATE_FACT':['min', 'max', 'mean'], 'AMT_CREDIT_MAX_OVERDUE': ['max', 'mean'], 'AMT_CREDIT_SUM': ['ma...
train = train.drop(284103 )
Tabular Playground Series - Jan 2021
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def get_bureau_active_agg(bureau): cond_active = bureau['CREDIT_ACTIVE'] == 'Active' bureau_active_grp = bureau[cond_active].groupby(['SK_ID_CURR']) bureau_agg_dict = { 'SK_ID_BUREAU':['count'], 'DAYS_CREDIT':['min', 'max', 'mean'], 'CREDIT_DAY_OVERDUE':['min', 'max', 'mean'], 'DAYS_CREDIT_ENDDATE':['min', 'max', 'mea...
target = train.pop('target') X_train, X_test, y_train, y_test = train_test_split(train, target, train_size=0.60 )
Tabular Playground Series - Jan 2021
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def get_bureau_bal_agg(bureau, bureau_bal): bureau_bal = bureau_bal.merge(bureau[['SK_ID_CURR', 'SK_ID_BUREAU']], on='SK_ID_BUREAU', how='left') bureau_bal['BUREAU_BAL_IS_DPD'] = bureau_bal['STATUS'].apply(lambda x: 1 if x in['1','2','3','4','5'] else 0) bureau_bal['BUREAU_BAL_IS_DPD_OVER120'] = bureau_bal['STATUS']....
model = XGBRegressor(n_estimators=500, learning_rate=0.05, n_jobs=4) model.fit(X_train, y_train, early_stopping_rounds=5, eval_set=[(X_test, y_test)], verbose=False )
Tabular Playground Series - Jan 2021
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def get_bureau_agg(bureau, bureau_bal): bureau = get_bureau_processed(bureau) bureau_day_amt_agg = get_bureau_day_amt_agg(bureau) bureau_active_agg = get_bureau_active_agg(bureau) bureau_bal_agg = get_bureau_bal_agg(bureau, bureau_bal) bureau_agg = bureau_day_amt_agg.merge(bureau_active_agg, on='SK_ID_CURR', how='l...
y_pred = model.predict(X_test) score = mean_squared_error(y_test, y_pred, squared=False) print(score )
Tabular Playground Series - Jan 2021
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<categorify><EOS>
submission['target'] = model.predict(test) submission.to_csv('xgb_regressor.csv' )
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<SOS> metric: RMSE Kaggle data source: tabular-playground-series-jan-2021<categorify>
warnings.filterwarnings("ignore" )
Tabular Playground Series - Jan 2021
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apps_all = get_apps_all_encoded(apps_all) apps_all_train, apps_all_test = get_apps_all_train_test(apps_all )<load_pretrained>
train = pd.read_csv('.. /input/tabular-playground-series-jan-2021/train.csv') test = pd.read_csv('.. /input/tabular-playground-series-jan-2021/test.csv') sub = pd.read_csv('.. /input/tabular-playground-series-jan-2021/sample_submission.csv' )
Tabular Playground Series - Jan 2021
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clf = train_apps_all(apps_all_train )<save_to_csv>
features = ['cont1', 'cont2', 'cont3', 'cont4', 'cont5', 'cont6', 'cont7', 'cont8', 'cont9', 'cont10', 'cont11', 'cont12', 'cont13', 'cont14']
Tabular Playground Series - Jan 2021
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preds = clf.predict_proba(apps_all_test.drop(['SK_ID_CURR'], axis=1)) [:, 1 ] apps_all_test['TARGET'] = preds apps_all_test[['SK_ID_CURR', 'TARGET']].to_csv('bureau_baseline_04.csv', index=False )<set_options>
X = train_01[features] y = train_01['target']
Tabular Playground Series - Jan 2021
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tqdm().pandas() pd_ctx = pd.option_context('display.max_colwidth', 100) pd.set_option('display.float_format', lambda x: '%.3f' % x )<load_from_csv>
params_xgb = {'lambda': 1, 'alpha': 0, 'colsample_bytree': 1, 'subsample': 1, 'learning_rate': 0.05, 'max_depth': 6, 'min_child_weight': 3, 'random_state': 48}
Tabular Playground Series - Jan 2021
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TRAIN_FILE = '/kaggle/input/quora-insincere-questions-classification/train.csv' TEST_FILE = '/kaggle/input/quora-insincere-questions-classification/test.csv' df = pd.read_csv(TRAIN_FILE) df.info() test_df = pd.read_csv(TEST_FILE) with pd_ctx: print("Sincere question") display(df[df['target'] == 0].head()) print("In...
model_xgb = xgb.XGBRegressor(**params_xgb )
Tabular Playground Series - Jan 2021
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def statistic(df): stats = pd.DataFrame() ; stats['question_text'] = df['question_text'] stats['sp_char_words'] = stats['question_text'].str.findall(r'[^a-zA-Z0-9 ]' ).str.len() stats['num_capital'] = stats['question_text'].progress_map(lambda x: len([c for c in str(x)if c.isupper() ])) stats['num_numerics'] = stats['q...
param_range = np.linspace(0, 1, 10) param_range
Tabular Playground Series - Jan 2021
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contractions= {"i'm": 'i am',"i'm'a": 'i am about to',"i'm'o": 'i am going to',"i've": 'i have',"i'll": 'i will',"i'll've": 'i will have',"i'd": 'i would',"i'd've": 'i would have',"Whatcha": 'What are you',"amn't": 'am not',"ain't": 'are not',"aren't": 'are not',"'cause": 'because',"can't": 'can not',"can't've": 'can n...
param_name = "alpha"
Tabular Playground Series - Jan 2021
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OOV_TOKEN = '<OOV>' def create_tokenizer(docs): tokenizer = Tokenizer(oov_token=OOV_TOKEN) tokenizer.fit_on_texts(list(docs)) print("Size of vocabulary: ", len(tokenizer.word_index)) return tokenizer tokenizer = create_tokenizer(sample['clean']) print("20 từ đầu tiên trong từ điển:") list(tokenizer.word_index.items(...
param_name = "lambda"
Tabular Playground Series - Jan 2021
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word_sequences = tokenizer.texts_to_sequences(sample['clean']) print("Length of 20 first word_sequences:") print(list(map(lambda x: len(x),word_sequences[:20]))) print(" 20 first word_sequences:") for sequence in word_sequences[:20]: print(sequence )<categorify>
param_range = np.linspace(0.1, 1, 10) param_range
Tabular Playground Series - Jan 2021
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MAX_SENTENCE_LENGTH = 60 PADDING_TYPE = 'post' TRUNCATE_TYPE = 'post' def create_sequence(tokenizer, docs): word_sequeces = tokenizer.texts_to_sequences(docs) padded_word_sequences = pad_sequences(word_sequeces, maxlen=MAX_SENTENCE_LENGTH, padding=PADDING_TYPE, truncating=TRUNCATE_TYPE) return padded_word_sequences p...
param_name = 'colsample_bytree'
Tabular Playground Series - Jan 2021
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trainY = train.target print("Clean train question") trainX_text = apply_clean_text(train.question_text) print("Clean test question") testX_text = apply_clean_text(test_df.question_text )<split>
param_name = 'subsample'
Tabular Playground Series - Jan 2021
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X_train, X_val, y_train, y_val = train_test_split(trainX_text, trainY, test_size=0.2, random_state=123 )<choose_model_class>
param_name = 'n_estimators'
Tabular Playground Series - Jan 2021
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EMBEDDING_DIM = 300 learning_rate = 0.001 def createModel_bidirectional_LSTM_GRU(features,embedding_matrix = None): output_bias = Constant(np.log([len(data_pos)/len(data_neg)])) x_input = Input(shape=(MAX_SENTENCE_LENGTH)) if not(embedding_matrix is None): embedding = Embedding(features, EMBEDDING_DIM, input_length=MAX...
param_range = [100, 200, 300, 400, 500, 600, 700, 800, 900, 1000]
Tabular Playground Series - Jan 2021
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def best_threshold(y_train,train_preds): tmp = [0,0,0] delta = 0 for tmp[0] in tqdm(np.arange(0.1, 0.9, 0.01)) : tmp[1] = metrics.f1_score(y_train, np.array(train_preds)>tmp[0]) if tmp[1] > tmp[2]: delta = tmp[0] tmp[2] = tmp[1] return delta, tmp[2]<choose_model_class>
X = train[features] y = train['target']
Tabular Playground Series - Jan 2021
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strategy = None try: tpu = tf.distribute.cluster_resolver.TPUClusterResolver.connect() strategy = tf.distribute.TPUStrategy(tpu) print('Use TPU') except ValueError: if len(tf.config.list_physical_devices('GPU')) > 0: strategy = tf.distribute.MirroredStrategy() print('Use GPU') else: strategy = tf.distribute.get_stra...
def objective(trial,data=X,target=y): train_x, test_x, train_y, test_y = train_test_split(data, target, test_size=0.15,random_state=42) param = { 'tree_method':'gpu_hist', 'lambda': trial.suggest_loguniform('lambda', 1e-3, 1), 'alpha': trial.suggest_loguniform('alpha', 1e-3, 1), 'colsample_bytree': trial.suggest_categ...
Tabular Playground Series - Jan 2021
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class_weight = { 0: 1, 1: 3, } batch_size = 1024 n_epochs = 30 early_stopping=tf.keras.callbacks.EarlyStopping( monitor="val_loss", patience=3, mode="min", restore_best_weights=True ) reduce_lr=tf.keras.callbacks.ReduceLROnPlateau( monitor="val_loss", factor=0.2, patience=2, verbose=1, mode="auto" ) my_callbacks=...
study = optuna.create_study(direction='minimize') study.optimize(objective, n_trials=50) print('Number of finished trials:', len(study.trials)) print('Best trial:', study.best_trial.params )
Tabular Playground Series - Jan 2021
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with strategy.scope() : threshold, f1_score, val_pred, test_pred = train_model_and_predict(X_train, y_train, X_val, y_val, testX_text) print(metrics.classification_report(y_val,(val_pred>threshold ).astype(int)) )<feature_engineering>
study.best_trial.params
Tabular Playground Series - Jan 2021
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def get_coefs(word, *arr): return word, np.asarray(arr, dtype='float32') def get_lines_count(file_name): return sum(1 for _ in open(file_name, encoding="utf8", errors='ignore')) def load_vec(file_name): return dict( get_coefs(*o.split(" ")) for o in tqdm(open( file_name, encoding="utf8", errors='ignore'), total=get_...
Best_params_xgb = {'lambda': 0.0014311714230223992, 'alpha': 0.008850567457271379, 'colsample_bytree': 0.3, 'subsample': 1.0, 'learning_rate': 0.01, 'max_depth': 20, 'min_child_weight': 245, 'n_estimators': 4000, 'random_state': 48, 'tree_method':'gpu_hist'}
Tabular Playground Series - Jan 2021
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EMBEDDING_DIM = 300 ps = PorterStemmer() lc = LancasterStemmer() sb = SnowballStemmer('english') def load_embedding(word2vec, word2index): oov_count = 0 vocab_count = 0 vocab_size = len(word2index) embedding_weights = np.zeros(( vocab_size+1, EMBEDDING_DIM)) unknown_vector = np.zeros(( EMBEDDING_DIM,), dtype=np.float...
train_x, test_x, train_y, test_y = train_test_split(X, y, test_size=0.15,random_state=42) model_xgb = xgb.XGBRegressor(**Best_params_xgb) model_xgb.fit(train_x,train_y,eval_set=[(test_x,test_y)],early_stopping_rounds=100,verbose=False )
Tabular Playground Series - Jan 2021
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GLOVE_FILE = 'glove.840B.300d/glove.840B.300d.txt' !unzip -n /kaggle/input/quora-insincere-questions-classification/embeddings.zip {GLOVE_FILE} -d. print('loading glove_vec') glove_vec = load_vec(GLOVE_FILE )<predict_on_test>
preds = model_xgb.predict(test_x) rmse = mean_squared_error(test_y, preds,squared=False) rmse
Tabular Playground Series - Jan 2021
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with strategy.scope() : glove_threshold, glove_f1_score, glove_val_pred, glove_test_pred = train_model_and_predict(X_train, y_train, X_val, y_val, testX_text, glove_vec) print(metrics.classification_report(y_val,(glove_val_pred>glove_threshold ).astype(int)) )<set_options>
test_X = test[features]
Tabular Playground Series - Jan 2021
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del glove_vec gc.collect()<load_pretrained>
preds = model_xgb.predict(test_X )
Tabular Playground Series - Jan 2021
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PARA_FILE = 'paragram_300_sl999/paragram_300_sl999.txt' !unzip -n /kaggle/input/quora-insincere-questions-classification/embeddings.zip {PARA_FILE} -d. print('loading para_vec') para_vec = load_vec(PARA_FILE )<predict_on_test>
sub['target']=preds sub.to_csv('submission.csv', index=False )
Tabular Playground Series - Jan 2021
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with strategy.scope() : para_threshold, para_f1_score, para_val_pred, para_test_pred = train_model_and_predict(X_train, y_train, X_val, y_val, testX_text, para_vec) print(metrics.classification_report(y_val,(para_val_pred>para_threshold ).astype(int)) )<set_options>
X = train_01[features] y = train_01['target']
Tabular Playground Series - Jan 2021
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del para_vec gc.collect()<load_pretrained>
params_lgb = {'num_leaves': 31, 'min_data_in_leaf': 20, 'min_child_weight': 0.001, 'max_depth': -1, 'learning_rate': 0.005, 'bagging_fraction': 1, 'feature_fraction': 1, 'lambda_l1': 0, 'lambda_l2': 0, 'random_state': 48}
Tabular Playground Series - Jan 2021
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WIKI_FILE = 'wiki-news-300d-1M/wiki-news-300d-1M.vec' !unzip -n /kaggle/input/quora-insincere-questions-classification/embeddings.zip {WIKI_FILE} -d. print('loading wiki_vec') wiki_vec = load_vec(WIKI_FILE )<predict_on_test>
model_lgb = lgb.LGBMRegressor(**params_lgb )
Tabular Playground Series - Jan 2021
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with strategy.scope() : wiki_threshold, wiki_f1_score, wiki_val_pred, wiki_test_pred = train_model_and_predict(X_train, y_train, X_val, y_val, testX_text, wiki_vec) print(metrics.classification_report(y_val,(wiki_val_pred>wiki_threshold ).astype(int)) )<set_options>
param_range = np.linspace(0, 1, 10) param_range
Tabular Playground Series - Jan 2021
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del wiki_vec gc.collect()<compute_test_metric>
param_name = 'lambda_l1'
Tabular Playground Series - Jan 2021
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val_prod = np.zeros(( len(X_val),), dtype=np.float32) val_prod += 1/3 * np.squeeze(glove_val_pred) val_prod += 1/3 * np.squeeze(para_val_pred) val_prod += 1/3 *np.squeeze(wiki_val_pred) threshold_global, f1_global = best_threshold(y_val, val_prod) print(metrics.classification_report(y_val,(val_prod>threshold_globa...
param_name = 'lambda_l2'
Tabular Playground Series - Jan 2021
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pred_prob = np.zeros(( len(testX_text),), dtype=np.float32) pred_prob += 1/3 * np.squeeze(glove_test_pred) pred_prob += 1/3 * np.squeeze(para_test_pred) pred_prob += 1/3 * np.squeeze(wiki_test_pred) y_test_pre=(( pred_prob>threshold_global ).astype(int)) submit = pd.DataFrame() submit["qid"]=test_df.qid submit["pre...
param_name = 'feature_fraction'
Tabular Playground Series - Jan 2021
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import numpy as np import pandas as pd import os import tensorflow as tf from tensorflow.keras.models import Sequential from tensorflow.keras.layers import Conv2D, MaxPooling2D, Flatten, Dense, Dropout import pandas as pd import matplotlib.pyplot as plt<load_from_csv>
param_name = 'bagging_fraction'
Tabular Playground Series - Jan 2021
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train = np.loadtxt(open('/kaggle/input/digit-recognizer/train.csv', 'r'), delimiter=',', skiprows=1, dtype='float32') test = np.loadtxt(open('/kaggle/input/digit-recognizer/test.csv', 'r'), delimiter=',', skiprows=1, dtype='float32') train_images = train[:, 1:].reshape(( train.shape[0], 28, 28, 1)) / 255.0 train_labe...
param_name = 'n_estimators'
Tabular Playground Series - Jan 2021
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augmentation_layer = tf.keras.Sequential([ tf.keras.layers.experimental.preprocessing.RandomRotation(0.1, input_shape=(28, 28, 1)) , tf.keras.layers.experimental.preprocessing.RandomZoom(( 0.2, 0.2)) , ] )<categorify>
param_range = [100, 200, 300, 400, 500, 600, 700, 800, 900, 1000]
Tabular Playground Series - Jan 2021
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for i in range(5): new_img = augmentation_layer(train_images[np.random.randint(train_images.shape[0])] ).numpy() plt.imshow(new_img.reshape(( 28, 28))) plt.show()<choose_model_class>
X = train[features] y = train['target']
Tabular Playground Series - Jan 2021
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model = Sequential([ tf.keras.layers.Input(( 28, 28, 1)) , augmentation_layer, Conv2D(32, 3, activation='relu', padding="same"), MaxPooling2D(2), Conv2D(64, 3, activation='relu', padding="same"), MaxPooling2D(2), Conv2D(64, 3, activation='relu', padding="same"), MaxPooling2D(2), Flatten() , Dropout(0.3), Dense(128, act...
def objective_lgb(trial,data=X,target=y): train_x, test_x, train_y, test_y = train_test_split(data, target, test_size=0.15,random_state=42) param = { 'tree_method':'gpu_hist', 'lambda_l2': trial.suggest_loguniform('lambda_l2', 1e-3, 1), 'lambda_l1': trial.suggest_loguniform('lambda_l1', 1e-3, 1), 'feature_framcion': t...
Tabular Playground Series - Jan 2021
14,309,939
model.compile( optimizer='adam', loss='sparse_categorical_crossentropy', metrics=['accuracy'] )<train_model>
study = optuna.create_study(direction='minimize') study.optimize(objective_lgb, n_trials=50) print('Number of finished trials:', len(study.trials)) print('Best trial:', study.best_trial.params )
Tabular Playground Series - Jan 2021
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history = model.fit(train_images, train_labels, epochs=100 )<choose_model_class>
study.best_trial.params
Tabular Playground Series - Jan 2021
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predition_model = tf.keras.Sequential() for layer in model.layers: if layer != augmentation_layer: predition_model.add(layer) predition_model.compile(loss="sparse_categorical_crossentropy", optimizer="adam" )<predict_on_test>
Best_params_lgb = {'lambda_l2': 0.013616569506899653, 'lambda_l1': 0.006495842188985166, 'feature_framcion': 0.3, 'bagging_framcion': 0.3, 'learning_rate': 0.015, 'num_leaves': 200, 'max_depth': 25, 'min_data_in_leaf': 30, 'min_child_weight': 0.001, 'n_estimators': 3000, 'random_state': 48, 'tree_method':'gpu_hist'}
Tabular Playground Series - Jan 2021
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test_labels = np.argmax(predition_model.predict(test_images), axis=-1) print(test_labels.shape )<save_to_csv>
train_x, test_x, train_y, test_y = train_test_split(X, y, test_size=0.15,random_state=42) model_lgb = lgb.LGBMRegressor(**Best_params_lgb) model_lgb.fit(train_x,train_y,eval_set=[(test_x,test_y)], early_stopping_rounds=100,verbose=False )
Tabular Playground Series - Jan 2021
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image_ids = np.arange(1, test_labels.shape[0]+1) result = np.concatenate(( image_ids.reshape(image_ids.shape[0], 1), test_labels.reshape(test_labels.shape[0], 1)) , axis=1) df = pd.DataFrame(result, columns=["ImageId", "Label"], dtype='int') df.to_csv("submission.csv", index=False )<set_options>
preds = model_lgb.predict(test_x) rmse = mean_squared_error(test_y, preds,squared=False) rmse
Tabular Playground Series - Jan 2021
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<load_from_csv><EOS>
test_X = test[features] preds = model_lgb.predict(test_X) sub['target']=preds sub.to_csv('submission_lgb.csv', index=False )
Tabular Playground Series - Jan 2021
8,682,100
HorizontalFlip, VerticalFlip, IAAPerspective, ShiftScaleRotate, CLAHE, RandomRotate90, Transpose, ShiftScaleRotate, Blur, OpticalDistortion, GridDistortion, HueSaturationValue, IAAAdditiveGaussianNoise, GaussNoise, MotionBlur, MedianBlur, IAAPiecewiseAffine, RandomResizedCrop, IAASharpen, IAAEmboss, RandomBrightnessCon...
!pip install.. /input/efficientnet/efficientnet-1.0.0-py3-none-any.whl
Deepfake Detection Challenge
8,682,100
class CassvaImgClassifier(nn.Module): def __init__(self, model_arch, n_class, pretrained=False): super().__init__() self.model = timm.create_model(model_arch, pretrained=pretrained) n_features = self.model.classifier.in_features self.model.classifier = nn.Linear(n_features, n_class) def forward(self, x): x = self.mod...
import pandas as pd import tensorflow as tf import cv2 import glob from tqdm.notebook import tqdm import numpy as np import os import efficientnet.keras as efn from keras.layers import * from keras import Model import matplotlib.pyplot as plt import time
Deepfake Detection Challenge
8,682,100
if __name__ == '__main__': seed_everything(CFG['seed']) folds = StratifiedKFold(n_splits=CFG['fold_num'] ).split(np.arange(train.shape[0]), train.label.values) for fold,(trn_idx, val_idx)in enumerate(folds): if fold > 0: break print('Inference fold {} started'.format(fold)) valid_ = train.loc[val_idx,:].reset_index(d...
detection_graph = tf.Graph() with detection_graph.as_default() : od_graph_def = tf.compat.v1.GraphDef() with tf.io.gfile.GFile('.. /input/mobilenet-face/frozen_inference_graph_face.pb', 'rb')as fid: serialized_graph = fid.read() od_graph_def.ParseFromString(serialized_graph) tf.import_graph_def(od_graph_def, name='' )
Deepfake Detection Challenge
8,682,100
test['label'] = np.argmax(tst_preds, axis=1) test.head()<save_to_csv>
cm = detection_graph.as_default() cm.__enter__()
Deepfake Detection Challenge
8,682,100
test.to_csv('submission.csv', index=False )<set_options>
config = tf.compat.v1.ConfigProto() config.gpu_options.allow_growth = True sess=tf.compat.v1.Session(graph=detection_graph, config=config) image_tensor = detection_graph.get_tensor_by_name('image_tensor:0') boxes_tensor = detection_graph.get_tensor_by_name('detection_boxes:0') scores_tensor = detection_graph.get_ten...
Deepfake Detection Challenge
8,682,100
pd.set_option('display.max_columns', 100) pd.set_option('display.max_rows', 100) <load_pretrained>
def get_img(images): global boxes,scores,num_detections im_heights,im_widths=[],[] imgs=[] for image in images: (im_height,im_width)=image.shape[:-1] imgs.append(image) im_heights.append(im_height) im_widths.append(im_widths) imgs=np.array(imgs) (boxes, scores_)= sess.run( [boxes_tensor, scores_tensor], feed_dict=...
Deepfake Detection Challenge
8,682,100
CACHE_PATH = '.. /input/mlp012003weights' def save_pickle(dic, save_path): with open(save_path, 'wb')as f: pickle.dump(dic, f) def load_pickle(load_path): with open(load_path, 'rb')as f: message_dict = pickle.load(f) return message_dict f_mean = np.load(f'{CACHE_PATH}/f_mean_online.npy' )<define_variables>
os.mkdir('./videos/') for x in tqdm(glob.glob('.. /input/deepfake-detection-challenge/test_videos/*.mp4')) : try: filename=x.replace('.. /input/deepfake-detection-challenge/test_videos/','' ).replace('.mp4','.jpg') a=detect_video(x,0) if a is None: continue cv2.imwrite('./videos/'+filename,a) except Exception as er...
Deepfake Detection Challenge
8,682,100
feat_cols = [f'feature_{i}' for i in range(130)] all_feat_cols = [col for col in feat_cols] all_feat_cols.extend(['cross_41_42_43', 'cross_1_2']) target_cols = ['action', 'action_1', 'action_2', 'action_3', 'action_4']<import_modules>
os.mkdir('./videos_2/') for x in tqdm(glob.glob('.. /input/deepfake-detection-challenge/test_videos/*.mp4')) : try: filename=x.replace('.. /input/deepfake-detection-challenge/test_videos/','' ).replace('.mp4','.jpg') a=detect_video(x,95) if a is None: continue cv2.imwrite('./videos_2/'+filename,a) except Exception ...
Deepfake Detection Challenge
8,682,100
import torch import torch.nn as nn from torch.autograd import Variable from torch.utils.data import DataLoader from torch.nn import CrossEntropyLoss, MSELoss from torch.nn.modules.loss import _WeightedLoss import torch.nn.functional as F<choose_model_class>
bottleneck = efn.EfficientNetB1(weights=None,include_top=False,pooling='avg') inp=Input(( 10,240,240,3)) x=TimeDistributed(bottleneck )(inp) x = LSTM(128 )(x) x = Dense(64, activation='elu' )(x) x = Dense(1,activation='sigmoid' )(x )
Deepfake Detection Challenge
8,682,100
class Model(nn.Module): def __init__(self): super(Model, self ).__init__() self.batch_norm0 = nn.BatchNorm1d(len(all_feat_cols)) self.dropout0 = nn.Dropout(0.9) dropout_rate = 0.9 hidden_size = 256 self.dense1 = nn.Linear(len(all_feat_cols), hidden_size) self.batch_norm1 = nn.BatchNorm1d(hidden_size) self.dropout1 =...
model=Model(inp,x) weights = ['.. /input/deepfake-20/saved-model-01-0.06.hdf5', '.. /input/deepfake-20/saved-model-02-0.05.hdf5', '.. /input/model-epoch-3/saved-model-03-0.06.hdf5','.. /input/model-02/saved-model-01-0.06.hdf5']*2 sub_file = ['submission_'+str(i)+'.csv' for i in range(1,9)] video = ['./videos/']*4+['./...
Deepfake Detection Challenge
8,682,100
if torch.cuda.is_available() : print('using device: cuda') device = torch.device("cuda:0") else: print('using device: cpu') device = torch.device('cpu' )<load_pretrained>
!rm -r videos !rm -r videos_2
Deepfake Detection Challenge
8,682,100
NFOLDS = 5 model_list = [] tmp = np.zeros(len(feat_cols)) for _fold in range(NFOLDS): torch.cuda.empty_cache() model = Model() model.to(device) model_weights = f"{CACHE_PATH}/online_model{_fold}.pth" model.load_state_dict(torch.load(model_weights, map_location=device)) model.eval() model_list.append(model )<import_mod...
df1 = pd.read_csv('submission_1.csv' ).set_index('filename' ).transpose().to_dict() df2 = pd.read_csv('submission_2.csv' ).set_index('filename' ).transpose().to_dict() df3 = pd.read_csv('submission_3.csv' ).set_index('filename' ).transpose().to_dict() df4 = pd.read_csv('submission_4.csv' ).set_index('filename' ).transp...
Deepfake Detection Challenge
8,682,100
<choose_model_class><EOS>
!rm submission_1.csv !rm submission_2.csv !rm submission_3.csv !rm submission_4.csv !rm submission_5.csv !rm submission_6.csv !rm submission_7.csv !rm submission_8.csv
Deepfake Detection Challenge
8,125,767
<SOS> metric: LogLoss Kaggle data source: deepfake-detection-challenge<load_pretrained>
%matplotlib inline warnings.filterwarnings("ignore" )
Deepfake Detection Challenge
8,125,767
clf.save(f'model.h5') clf.load_weights('.. /input/jane-street-with-keras-nn-overfit/model.h5') <define_variables>
test_dir = "/kaggle/input/deepfake-detection-challenge/test_videos/" test_videos = sorted([x for x in os.listdir(test_dir)if x[-4:] == ".mp4"]) frame_h = 5 frame_l = 5 len(test_videos )
Deepfake Detection Challenge
8,125,767
copyfile(src = ".. /input/mlp-model-130-features-200-epoch/Models.py", dst = ".. /working/Models.py") pd.set_option('display.max_columns', 100) pd.set_option('display.max_rows', 100) DATA_PATH = '.. /input/jane-street-market-prediction/' Model_Root = '.. /input/mlp-model-130-features-200-epoch/' NFOLDS = 5 TRAIN = F...
print("PyTorch version:", torch.__version__) print("CUDA version:", torch.version.cuda) print("cuDNN version:", torch.backends.cudnn.version() )
Deepfake Detection Challenge
8,125,767
SEED = 1111 np.random.seed(SEED) def create_mlp( num_columns, num_labels, hidden_units, dropout_rates, label_smoothing, learning_rate ): inp = tf.keras.layers.Input(shape=(num_columns,)) x = tf.keras.layers.BatchNormalization()(inp) x = tf.keras.layers.Dropout(dropout_rates[0] )(x) for i in range(len(hidden_units)...
gpu = torch.device("cuda:0" if torch.cuda.is_available() else "cpu") gpu
Deepfake Detection Challenge
8,125,767
if True: env = janestreet.make_env() env_iter = env.iter_test() for(test_df, pred_df)in tqdm(env_iter): if test_df['weight'].item() > 0: x_tt = test_df.loc[:, feat_cols].values if np.isnan(x_tt.sum()): x_tt = np.nan_to_num(x_tt)+ np.isnan(x_tt)* f_mean cross_41_42_43 = x_tt[:, 41] + x_tt[:, 42] + x_tt[:, 43] cross_1_2 ...
facedet = BlazeFace().to(gpu) facedet.load_weights("/kaggle/input/blazeface-pytorch/blazeface.pth") facedet.load_anchors("/kaggle/input/blazeface-pytorch/anchors.npy") _ = facedet.train(False )
Deepfake Detection Challenge
8,125,767
pd.set_option('display.max_columns', 100) pd.set_option('display.max_rows', 100) DATA_PATH = '.. /input/jane-street-market-prediction/' NFOLDS = 5 TRAIN = False CACHE_PATH = '.. /input/mlp012003weights' def save_pickle(dic, save_path): with open(save_path, 'wb')as f: pickle.dump(dic, f) def load_pickle(load_path): w...
frames_per_video = 90 video_reader = VideoReader() video_read_fn = lambda x: video_reader.read_frames(x, num_frames=frames_per_video) face_extractor = FaceExtractor(video_read_fn, facedet )
Deepfake Detection Challenge
8,125,767
SEED = 1111 np.random.seed(SEED) def create_mlp( num_columns, num_labels, hidden_units, dropout_rates, label_smoothing, learning_rate ): inp = tf.keras.layers.Input(shape=(num_columns,)) x = tf.keras.layers.BatchNormalization()(inp) x = tf.keras.layers.Dropout(dropout_rates[0] )(x) for i in range(len(hidden_units)...
input_size = 250
Deepfake Detection Challenge
8,125,767
if True: env = janestreet.make_env() env_iter = env.iter_test() for(test_df, pred_df)in tqdm(env_iter): if test_df['weight'].item() > 0: x_tt = test_df.loc[:, feat_cols].values if np.isnan(x_tt.sum()): x_tt = np.nan_to_num(x_tt)+ np.isnan(x_tt)* f_mean cross_41_42_43 = x_tt[:, 41] + x_tt[:, 42] + x_tt[:, 43] cross_1_2 ...
mean = [0.485, 0.456, 0.406] std = [0.229, 0.224, 0.225] normalize_transform = Normalize(mean, std )
Deepfake Detection Challenge
8,125,767
pd.set_option('display.max_columns', 100) pd.set_option('display.max_rows', 100) DATA_PATH = '.. /input/jane-street-market-prediction/' NFOLDS = 5 TRAIN = False CACHE_PATH = '.. /input/mlp012003weights' XGBOOST_PATH = '.. /input/xgboost' def save_pickle(dic, save_path): with open(save_path, 'wb')as f: pickle.dump(dic...
class MyResNeXt(models.resnet.ResNet): def __init__(self, training=True): super(MyResNeXt, self ).__init__(block=models.resnet.Bottleneck, layers=[3, 4, 6, 3], groups=32, width_per_group=4) self.fc = nn.Linear(2048, 1 )
Deepfake Detection Challenge
8,125,767
SEED = 1111 np.random.seed(SEED) def create_mlp( num_columns, num_labels, hidden_units, dropout_rates, label_smoothing, learning_rate ): inp = tf.keras.layers.Input(shape=(num_columns,)) x = tf.keras.layers.BatchNormalization()(inp) x = tf.keras.layers.Dropout(dropout_rates[0] )(x) for i in range(len(hidden_units)...
checkpoint = torch.load("/kaggle/input/deepfakes-inference-demo/resnext.pth", map_location=gpu) model = MyResNeXt().to(gpu) model.load_state_dict(checkpoint) _ = model.eval() del checkpoint
Deepfake Detection Challenge
8,125,767
import joblib from xgboost import XGBClassifier import xgboost as xgb<load_from_csv>
def predict_on_video(video_path, batch_size): try: faces = face_extractor.process_video(video_path) face_extractor.keep_only_best_face(faces) if len(faces)> 0: x = np.zeros(( batch_size, input_size, input_size, 3), dtype=np.uint8) n = 0 for frame_data in faces: for face in frame_data["faces"]: resized_face = isotrop...
Deepfake Detection Challenge
8,125,767
XGBOOST_PATH = '.. /input/xgboost' median_df = pd.read_csv(XGBOOST_PATH+'/median_pd_130_features.csv', index_col=False, header=0); median_df.columns = range(median_df.shape[1]) median_df = median_df.transpose() median_df.columns = median_df.iloc[0] median_df.drop(median_df.index[0], inplace=True) median = median_df.i...
def predict_on_video_set(videos, num_workers): def process_file(i): filename = videos[i] y_pred = predict_on_video(os.path.join(test_dir, filename), batch_size=frames_per_video) return y_pred with ThreadPoolExecutor(max_workers=num_workers)as ex: predictions = ex.map(process_file, range(len(videos))) return list(pred...
Deepfake Detection Challenge
8,125,767
xgb_file_suffix = "-n-500-d-8-sub-0.9-lr-0.05.joblib" xgb_clfs = [] for i in range(5): xgb_clf = joblib.load(XGBOOST_PATH + "/xgb" + str(i)+ xgb_file_suffix) xgb_clfs.append(xgb_clf )<load_from_csv>
speed_test = True
Deepfake Detection Challenge
8,125,767
LOCAL_TEST = True if LOCAL_TEST: datatable_frame = datatable.fread('.. /input/jane-street-market-prediction/train.csv') df_raw = datatable_frame.to_pandas() del datatable_frame df_raw = df_raw.query('date > 85' ).reset_index(drop = True) df_raw = df_raw[df_raw['weight'] != 0] df_raw['action'] =(( df_raw['resp'].value...
if speed_test: start_time = time.time() speedtest_videos = test_videos[:5] predictions = predict_on_video_set(speedtest_videos, num_workers=4) elapsed = time.time() - start_time print("Elapsed %f sec.Average per video: %f sec." %(elapsed, elapsed / len(speedtest_videos)) )
Deepfake Detection Challenge
8,125,767
if LOCAL_TEST: class TestDataset(Dataset): def __init__(self, df): self.features = df[all_feat_cols].values def __len__(self): return len(self.features) def __getitem__(self, idx): return { 'features': torch.tensor(self.features[idx], dtype=torch.float) }<load_pretrained>
predictions = predict_on_video_set(test_videos, num_workers=4 )
Deepfake Detection Challenge
8,125,767
if LOCAL_TEST: BATCH_SIZE = 8192 test_set = TestDataset(X_test_extended) test_loader = DataLoader(test_set, batch_size=BATCH_SIZE, shuffle=False, num_workers=4) for model in model_list: model.eval() torch_preds = [] for data in test_loader: feature_data = data['features'].to(device) multiple_preds = np.zeros(( len(f...
submission_df_resnext = pd.DataFrame({"filename": test_videos, "label": predictions}) submission_df_resnext.to_csv("submission_resnext.csv", index=False )
Deepfake Detection Challenge
8,125,767
if not LOCAL_TEST: env = janestreet.make_env() env_iter = env.iter_test() th = 0.5 for(test_df, pred_df)in tqdm(env_iter): if test_df['weight'].item() > 0: x_tt = test_df.loc[:, feat_cols].values if np.isnan(x_tt.sum()): x_tt = np.nan_to_num(x_tt)+ np.isnan(x_tt)* f_mean cross_41_42_43 = x_tt[:, 41] + x_tt[:, 42] + x_t...
!pip install.. /input/deepfake-xception-trained-model/pytorchcv-0.0.55-py2.py3-none-any.whl --quiet
Deepfake Detection Challenge
8,125,767
train = pd.read_csv(".. /input/jane-street-market-prediction/train.csv" )<drop_column>
test_dir = "/kaggle/input/deepfake-detection-challenge/test_videos/" test_videos = sorted([x for x in os.listdir(test_dir)if x[-4:] == ".mp4"]) len(test_videos )
Deepfake Detection Challenge
8,125,767
train = train.query('date > 85' ).reset_index(drop = True )<groupby>
gpu = torch.device("cuda:0" if torch.cuda.is_available() else "cpu" )
Deepfake Detection Challenge
8,125,767
features_mean = train.loc[:, features].mean()<data_type_conversions>
facedet = BlazeFace().to(gpu) facedet.load_weights("/kaggle/input/blazeface-pytorch/blazeface.pth") facedet.load_anchors("/kaggle/input/blazeface-pytorch/anchors.npy") _ = facedet.train(False )
Deepfake Detection Challenge
8,125,767
train.fillna(train.mean() , inplace=True )<prepare_x_and_y>
frames_per_video = 64 video_reader = VideoReader() video_read_fn = lambda x: video_reader.read_frames(x, num_frames=frames_per_video) face_extractor = FaceExtractor(video_read_fn, facedet )
Deepfake Detection Challenge
8,125,767
resp_cols = ['resp_1', 'resp_2', 'resp_3', 'resp_4', 'resp'] X_train = train.loc[:, features].values y_train = np.stack([train[c] for c in resp_cols] ).T print(X_train.shape, y_train.shape) del train<choose_model_class>
input_size = 150
Deepfake Detection Challenge
8,125,767
<choose_model_class>
mean = [0.485, 0.456, 0.406] std = [0.229, 0.224, 0.225] normalize_transform = Normalize(mean, std )
Deepfake Detection Challenge
8,125,767
HIDDEN_LAYER_1 = [256, 256] HIDDEN_LAYER_2 = [160, 160, 160] HIDDEN_LAYER_3 = [128, 128, 128, 128] TARGET_NUM = 5 input = tf.keras.layers.Input(shape=(X_train.shape[1],)) x1 = tf.keras.layers.BatchNormalization()(input) x1 = tf.keras.layers.Dropout(0.25 )(x1) for units in HIDDEN_LAYER_1: x1 = tf.keras.layers.Dense(un...
model = get_model("xception", pretrained=False) model = nn.Sequential(*list(model.children())[:-1]) class Pooling(nn.Module): def __init__(self): super(Pooling, self ).__init__() self.p1 = nn.AdaptiveAvgPool2d(( 1,1)) self.p2 = nn.AdaptiveMaxPool2d(( 1,1)) def forward(self, x): x1 = self.p1(x) x2 = self.p2(x) retur...
Deepfake Detection Challenge
8,125,767
print('Train NN...') history = model.fit( x = X_train, y = y_train, epochs=200, batch_size=4096, ) models = [] models.append(model) print('Done!' )<prepare_x_and_y>
def predict_on_video(video_path, batch_size): try: faces = face_extractor.process_video(video_path) face_extractor.keep_only_best_face(faces) if len(faces)> 0: x = np.zeros(( batch_size, input_size, input_size, 3), dtype=np.uint8) n = 0 for frame_data in faces: for face in frame_data["faces"]: resized_face = isotrop...
Deepfake Detection Challenge
8,125,767
del X_train, y_train<save_model>
def predict_on_video_set(videos, num_workers): def process_file(i): filename = videos[i] y_pred = predict_on_video(os.path.join(test_dir, filename), batch_size=frames_per_video) return y_pred with ThreadPoolExecutor(max_workers=num_workers)as ex: predictions = ex.map(process_file, range(len(videos))) return list(pred...
Deepfake Detection Challenge
8,125,767
model.save('./model', save_format="tf") print('export saved model.') <load_pretrained>
speed_test = True
Deepfake Detection Challenge
8,125,767
model = tf.keras.models.load_model('./model' )<statistical_test>
if speed_test: start_time = time.time() speedtest_videos = test_videos[:5] predictions = predict_on_video_set(speedtest_videos, num_workers=4) elapsed = time.time() - start_time print("Elapsed %f sec.Average per video: %f sec." %(elapsed, elapsed / len(speedtest_videos)) )
Deepfake Detection Challenge
8,125,767
THRESHOLD = 0 env = janestreet.make_env() iter_test = env.iter_test() print('predicting...') for(test_df, pred_df)in tqdm(env.iter_test()): global pred if test_df['weight'].item() > 0: X_test = test_df.loc[:, features].values if np.isnan(X_test.sum()): X_test = np.nan_to_num(X_test)+ np.isnan(X_test)* features_mean.va...
%%time model.eval() predictions = predict_on_video_set(test_videos, num_workers=4 )
Deepfake Detection Challenge
8,125,767
import janestreet from tqdm.notebook import tqdm import time import numpy as np import os ,gc import pandas as pd import matplotlib.pyplot as plt import seaborn as sns import datatable as dt import tensorflow as tf from tensorflow import keras import tensorflow_addons as tfa<set_options>
submission_df_xception = pd.DataFrame({"filename": test_videos, "label": predictions}) submission_df_xception.to_csv("submission_xception.csv", index=False )
Deepfake Detection Challenge
8,125,767
def set_seed(seed=7): np.random.seed(seed) tf.random.set_seed(seed) os.environ['PYTHONHASHSEED'] = str(seed) set_seed(seed=7) plt.style.use('seaborn' )<load_from_csv>
submission_df = pd.DataFrame({"filename": test_videos} )
Deepfake Detection Challenge
8,125,767
%time train_df=dt.fread('.. /input/jane-street-market-prediction/train.csv' ).to_pandas().query('weight > 0 and date >85' ).reset_index(drop=True) test_df=dt.fread('.. /input/jane-street-market-prediction/example_test.csv' ).to_pandas().reset_index(drop=True) sample_submission=pd.read_csv('.. /input/jane-street-marke...
r1 = 0.38 r2 = 0.62 total = r1 + r2 r11 = r1/total r22 = r2/total
Deepfake Detection Challenge
8,125,767
print('Training set shape {} Test set shape {} '.format(train_df.shape,test_df.shape))<categorify>
submission_df["label"] = r22*submission_df_resnext["label"] + r11*submission_df_xception["label"]
Deepfake Detection Challenge
8,125,767
<prepare_x_and_y><EOS>
submission_df.to_csv("submission.csv", index=False )
Deepfake Detection Challenge
8,206,048
<SOS> metric: LogLoss Kaggle data source: deepfake-detection-challenge<choose_model_class>
%matplotlib inline warnings.filterwarnings("ignore") test_dir = "/kaggle/input/deepfake-detection-challenge/test_videos/" test_videos = sorted([x for x in os.listdir(test_dir)if x[-4:] == ".mp4"]) frame_h = 5 frame_l = 5 len(test_videos) print("PyTorch version:", torch.__version__) print("CUDA version:", torch.vers...
Deepfake Detection Challenge
8,206,048
def Build_model(num_columns, num_labels, hidden_units, dropout_rates, label_smoothing, learning_rate ): inp = tf.keras.layers.Input(shape=(num_columns,)) x = tf.keras.layers.BatchNormalization()(inp) x = tf.keras.layers.Dropout(dropout_rates[0] )(x) for i in range(len(hidden_units)) : x = tf.keras.layers.Dense(hidde...
sys.path.insert(0, "/kaggle/input/blazeface-pytorch") sys.path.insert(0, "/kaggle/input/deepfakes-inference-demo") facedet = BlazeFace().to(gpu) facedet.load_weights("/kaggle/input/blazeface-pytorch/blazeface.pth") facedet.load_anchors("/kaggle/input/blazeface-pytorch/anchors.npy") _ = facedet.train(False) frames...
Deepfake Detection Challenge
8,206,048
epochs = 200 batch_size = 8192 hidden_units = [256,128,128,64] dropout_rates = [0.2,0.25, 0.25, 0.2, 0.15] label_smoothing = 1e-2 learning_rate = 1e-2 tf.keras.backend.clear_session() model2 = Build_model(len(features), 5, hidden_units, dropout_rates, label_smoothing, learning_rate) reduce_lr = keras.callbacks.ReduceL...
!pip install.. /input/deepfake-xception-trained-model/pytorchcv-0.0.55-py2.py3-none-any.whl --quiet
Deepfake Detection Challenge
8,206,048
epochs = 200 batch_size = 8192 hidden_units = [256,128,64] dropout_rates = [0.2,0.25, 0.20, 0.2] label_smoothing = 1e-2 learning_rate = 1e-1 tf.keras.backend.clear_session() model3= Build_model(len(features), 5, hidden_units, dropout_rates, label_smoothing, learning_rate) reduce_lr = keras.callbacks.ReduceLROnPlateau(...
test_dir = "/kaggle/input/deepfake-detection-challenge/test_videos/" test_videos = sorted([x for x in os.listdir(test_dir)if x[-4:] == ".mp4"]) len(test_videos )
Deepfake Detection Challenge
8,206,048
models=[model2,model3] th = 0.491 f = np.median env = janestreet.make_env() for(test_df, pred_df)in tqdm(env.iter_test()): test_df=test_df.interpolate(limit_direction='forward',axis=0) test_df=test_df.bfill() if test_df['weight'].item() > 0: x_tt = test_df.loc[:, features].values pred = np.mean([model(x_tt, training =...
gpu = torch.device("cuda:0" if torch.cuda.is_available() else "cpu") sys.path.insert(0, "/kaggle/input/blazeface-pytorch") sys.path.insert(0, "/kaggle/input/deepfakes-inference-demo") facedet = BlazeFace().to(gpu) facedet.load_weights("/kaggle/input/blazeface-pytorch/blazeface.pth") facedet.load_anchors("/kaggle/i...
Deepfake Detection Challenge