import sys
sys.path.insert(0, 'class')
import pathconfig
import matplotlib.pyplot as plt
import preprocessing_images
import model
'''
Script py to train the Transfer learning network
'''
paths = pathconfig.paths() #instance to import paths
preprocessing = preprocessing_images.Preprocessing_Images(
) #instance to import preprocessing class
Model = model.Model() #instance to import model class
model_Tran = model.Transfer_Learning() #instance to import a CNN model
path_model = model_Tran.path_model #path_model
path_weights = model_Tran.path_weights #path weights
print('Dataset for training set: {}'.format(
preprocessing.trainingset)) #path of training set
print('Dataset for test set: {}'.format(
preprocessing.testset)) #path of test set
history = model_Tran.training_model() #train the CNN model
name = model_Tran.name
Model.plot_history(history, name) #plot the history of training
#Model.save_model(model,path_model,path_weights) #save model
import preprocessing
import pathconfig
######################################################################
###################### RUN FOR PREPROCESSING ########################
######################################################################
""" in this file py, is possible run all preprocessing in order to elaborate data for the training of model.
It use the class Preprocessing and its relative sub-class. Many files were deleted , like Semcor, so is not
possible run this part of preprocessing"""
paths = pathconfig.paths() #create instance for paths from config_path file
corpus = preprocessing.Preprocessing.Corpus() # instance class corpus
input_x = "input_x"
babelnet_task = 'babelnet'
domains_taks = 'domains'
lexnames_task = 'lexnames'
""" Creation of all corpus needs for training sets"""
print('START corpus TRAINING...')
corpus.create_and_save_corpus_x(path_xml_par=paths.SEMCOR_PATH,
path_save_corpus_par=paths.CORPUS_X_PATH
) #creates the corpus for input data
corpus.create_and_save_corpus_babelnet_y(
path_xml_par=paths.SEMCOR_PATH,
path_gold_key_par=paths.SEMCOR_GOLD_KEY_PATH,
path_save_corpus_par=paths.CORPUS_BABELNET_LABELS_PATH
) #creates the corpus fine grained
corpus.create_and_save_corpus_domains_y(
path_corpus_babelnet_par=paths.CORPUS_BABELNET_LABELS_PATH,
def main(mode, dataset_eva):
def build_fully_connected(input_shape, num_classes):
"""
Create a fully-connected model to train or test on UC Merced dataset.
"""
model = Sequential()
model.add(Flatten(input_shape=input_shape))
model.add(Dense(256))
model.add(Activation('relu'))
model.add(Dropout(0.5))
model.add(Dense(num_classes, activation='softmax'))
return model
def train_model_VGG(x_train, y_train, x_validate, y_validate, num_classes):
# Build, compile, and fit the model
model = build_fully_connected(input_shape=X['train'].shape[1:],
num_classes=num_classes)
adam = optimizers.Adam(lr=0.0001)
model.compile(optimizer=adam,
loss='categorical_crossentropy',
metrics=['accuracy'])
model_fit_history = model.fit(X['train'],
Y['train'],
batch_size=64,
epochs=50,
verbose=2,
validation_data=(X['validate'],
Y['validate']))
epochs = np.argmin(model_fit_history.history['val_loss']) + 1
print(f'Stop training at {epochs} epochs')
plots_loss_accuracy_from_training(
model_fit_history
) # plots for loss and accuracy model after training
# Merge training and validation data
X_train = np.concatenate([x_train,
x_validate]) #concatenate train dataset
Y_train = np.concatenate([y_train,
y_validate]) #concatenate validation dataset
# Randomly shuffle X and Y
shuffle_index = np.random.permutation(len(X_train))
X_train = X_train[shuffle_index]
Y_train = Y_train[shuffle_index]
model = build_fully_connected(input_shape=X_train.shape[1:],
num_classes=num_classes)
model.compile(optimizer=adam,
loss='categorical_crossentropy',
metrics=['accuracy'])
print('Train with Training dataset + Validation dataset as input.')
model_fit_history = model.fit(
X_train, Y_train, batch_size=64, epochs=epochs,
verbose=0) # train with trainign and validation dataset
save_model(model, path_save_model_vgg, path_save_weight_vgg)
paths = pathconfig.paths(
) #object from class pathconfig to extract the path for solution
path_save_model_vgg = paths.MODEL_VGG #the path of model vgg
path_save_weight_vgg = paths.WEIGHTS_VGG #the path of weights vgg
# Collect class names from directory names in './data/UCMerced_LandUse/Images/'
sources_dataset = paths.FLOW_TRAIN #the sources path of dataset
class_names = os.listdir(sources_dataset) # the class names from dataset
try:
target_dirs = {
target: os.path.join(paths.BASE_FLOW, target)
for target in ['train', 'validate', 'test']
}
except:
print(
'Check to have the folder called "flow" in order to have dataset for testing/training/validate'
)
#Calculate the training image means by channel (3)
means = []
for root, _, filenames in os.walk(target_dirs['train']):
for filename in filenames: # from filenames of trainng directory of flow
filepath = os.path.join(root, filename)
image = imread(filepath) #read image
means.append(np.mean(image, axis=(0, 1)))
channel_means = np.mean(means, axis=0)
# Let's try the VGG16 model from keras
pretrained_model = tf.keras.applications.VGG16(include_top=False,
weights='imagenet')
# Extract bottleneck features from pretrained model, predicting from "dataset" directory
# the num of classes (21)
num_classes = len(class_names) #num of classes
X, Y = dict(), dict() #the two dict for inputs and outputs
preprocess = lambda x: x - channel_means
for dataset in ['train', 'validate', 'test']:
X[dataset], Y[dataset] = get_bottleneck_features(
model=pretrained_model,
dataset=dataset,
target_dirs=target_dirs,
preproc_func=preprocess)
# for re-training the VGG , decomment the code line "train_model_VGG"
if (mode == 'train'):
train_model_VGG(X['train'], Y['train'], X['validate'], Y['validate'],
num_classes)
# load the model from VGG
loaded_model = load_model(path_save_model_vgg, path_save_weight_vgg)
#evaluation of results from VGG model (confusion matrix)
if (dataset_eva == 'test'):
confusion_matrix(loaded_model, X['test'], Y['test'], class_names)
elif (dataset_eva == 'train'):
confusion_matrix(loaded_model, X['train'], Y['train'], class_names)
else:
confusion_matrix(loaded_model, X['validate'], Y['validate'],
class_names)
import numpy as np
import sys
sys.path.insert(0,'class')
import model
import pathconfig
import preprocessing_images
import evaluation
'''
Script py to evaluate the network Transfer Learning
'''
paths = pathconfig.paths()
Model = model.Model()
Evaluation = evaluation.Evaluation()
model_Transfer_Learning= model.Transfer_Learning() #Tranfer Learning model
path_test_set = paths.PATH_IMAGES_BLIND_TEST #the dataset chosen for evaluation. If you want change, you have to just change the
#path of dataset ( paths.PATH_IMAGES_TEST )
path_model = model_Transfer_Learning.path_model
path_weights = model_Transfer_Learning.path_weights
model = Model.load_model(path_model,path_weights)
Preprocessing_Images = preprocessing_images.Preprocessing_Images()
test_datagen, val_steps, classnames = Preprocessing_Images.get_set_from_path(setdata=path_test_set)
predictions = model.predict_generator(test_datagen,verbose=1,steps=val_steps)
