def __init__(
self,
path2dataset,
result_filename,
neighbor_suffix=None,
expression_suffix=None,
showHyperparameters=False,
):
self.path2dataset = Path(path2dataset)
self.result_filename = self.path2dataset / 'results' / result_filename
print(f'Result file = {self.result_filename}')
with openH5File(self.result_filename, 'r') as f:
for k in f['hyperparameters'].keys():
v = f[f'hyperparameters/{k}']
if isinstance(v, h5py.Group): continue
v = v[()]
if k in ['repli_list']:
v = np.array([_.decode('utf-8') for _ in v])
setattr(self, k, v)
if showHyperparameters:
print(f'{k} \t= {v}')
self.num_repli = len(self.repli_list)
self.use_spatial = [True] * self.num_repli
loadDataset(self,
neighbor_suffix=neighbor_suffix,
expression_suffix=expression_suffix)
self.columns_latent_states = np.array(
[f'latent state {i}' for i in range(self.K)])
self.columns_exprs = np.array([f'expr {_}' for _ in self.genes[0]])
self.data = pd.DataFrame(index=range(sum(self.Ns)))
self.data[['coor X', 'coor Y']] = np.concatenate([
loadExpression(
self.path2dataset / 'files' / f'coordinates_{repli}.txt')
for repli in self.repli_list
],
axis=0)
self.data['cell type'] = np.concatenate([
np.loadtxt(self.path2dataset / 'files' / f'celltypes_{repli}.txt',
dtype=str) for repli in self.repli_list
],
axis=0)
self.data['repli'] = sum(
[[repli] * N for repli, N in zip(self.repli_list, self.Ns)], [])
self.data[self.columns_exprs] = np.concatenate(self.YTs, axis=0)
self.scaling = [
G / self.GG * self.K / YT.sum(1).mean()
for YT, G in zip(self.YTs, self.Gs)
]
self.colors = {}
self.orders = {}
self.metagene_order = np.arange(self.K)
def __init__(
self,
path2dataset,
repli_list,
use_spatial,
neighbor_suffix,
expression_suffix,
K,
lambda_SigmaXInv,
betas,
prior_x_modes,
result_filename=None,
PyTorch_device='cpu',
num_processes=1,
):
self.PyTorch_device = PyTorch_device
self.num_processes = num_processes
self.path2dataset = Path(path2dataset)
self.repli_list = repli_list
self.use_spatial = use_spatial
self.num_repli = len(self.repli_list)
assert len(self.repli_list) == len(self.use_spatial)
loadDataset(self,
neighbor_suffix=neighbor_suffix,
expression_suffix=expression_suffix)
self.K = K
self.YTs = [
G / self.GG * self.K * YT / YT.sum(1).mean()
for YT, G in zip(self.YTs, self.Gs)
]
self.lambda_SigmaXInv = lambda_SigmaXInv
self.betas = betas
self.prior_x_modes = prior_x_modes
self.M_constraint = 'sum2one'
self.X_constraint = 'none'
self.dropout_mode = 'raw'
self.sigma_yx_inv_mode = 'average'
self.pairwise_potential_mode = 'normalized'
if result_filename is not None:
os.makedirs(self.path2dataset / 'results', exist_ok=True)
self.result_filename = self.path2dataset / 'results' / result_filename
logging.info(
f'{print_datetime()}result file = {self.result_filename}')
else:
self.result_filename = None
self.saveHyperparameters()
def loadModelForDataset(model_class,
dataset_string,
experiment_folder_name=None):
log_file = sys.stdout if experiment_folder_name == None else open(
f'{experiment_folder_name}/log_training.txt', 'w')
if not (model_class in {'lr', 'mlp', 'tree', 'forest'}):
raise Exception(f'{model_class} not supported.')
if not (dataset_string in {
'random', 'mortgage', 'twomoon', 'german', 'credit', 'compass',
'adult'
}):
raise Exception(f'{dataset_string} not supported.')
dataset_obj = loadData.loadDataset(dataset_string,
return_one_hot=True,
load_from_cache=True,
debug_flag=False)
X_train, X_test, y_train, y_test = dataset_obj.getTrainTestSplit()
feature_names = dataset_obj.getInputAttributeNames(
'kurz') # easier to read (nothing to do with one-hot vs non-hit!)
if model_class == 'tree':
model_pretrain = DecisionTreeClassifier()
elif model_class == 'forest':
model_pretrain = RandomForestClassifier()
elif model_class == 'lr':
# IMPORTANT: The default solver changed from ‘liblinear’ to ‘lbfgs’ in 0.22;
# therefore, results may differ slightly from paper.
model_pretrain = LogisticRegression(
) # default penalty='l2', i.e., ridge
elif model_class == 'mlp':
model_pretrain = MLPClassifier(hidden_layer_sizes=(10, 10))
print(
f'[INFO] Training `{model_class}` on {X_train.shape[0]:,} samples ' +
f'(%{100 * X_train.shape[0] / (X_train.shape[0] + X_test.shape[0]):.2f}'
+ f'of {X_train.shape[0] + X_test.shape[0]:,} samples)...',
file=log_file,
)
model_trained = model_pretrain.fit(X_train, y_train)
print(
f'\tTraining accuracy: %{accuracy_score(y_train, model_trained.predict(X_train)) * 100:.2f}',
file=log_file)
print(
f'\tTesting accuracy: %{accuracy_score(y_test, model_trained.predict(X_test)) * 100:.2f}',
file=log_file)
print('[INFO] done.\n', file=log_file)
if model_class == 'tree':
if SIMPLIFY_TREES:
print('[INFO] Simplifying decision tree...', end='', file=log_file)
model_trained.tree_ = treeUtils.simplifyDecisionTree(
model_trained, False)
print('\tdone.', file=log_file)
treeUtils.saveTreeVisualization(model_trained, model_class, '', X_test,
feature_names, experiment_folder_name)
elif model_class == 'forest':
for tree_idx in range(len(model_trained.estimators_)):
if SIMPLIFY_TREES:
print(
f'[INFO] Simplifying decision tree (#{tree_idx + 1}/{len(model_trained.estimators_)})...',
end='',
file=log_file)
model_trained.estimators_[
tree_idx].tree_ = treeUtils.simplifyDecisionTree(
model_trained.estimators_[tree_idx], False)
print('\tdone.', file=log_file)
treeUtils.saveTreeVisualization(
model_trained.estimators_[tree_idx], model_class,
f'tree{tree_idx}', X_test, feature_names,
experiment_folder_name)
if experiment_folder_name:
pickle.dump(model_trained,
open(f'{experiment_folder_name}/_model_trained', 'wb'))
return model_trained
def main():
model = myConvNet()
if cuda:
model = model.cuda()
model.apply(weights_init)
print(model)
optimizer = torch.optim.Adam(model.parameters(), lr=0.001)
#optimizer = torch.optim.SGD(model.parameters(), lr=0.001, momentum=0.9)
loss_fn = nn.CrossEntropyLoss()
mean_train_losses = []
epochs = 10000
trainref = 'bigtrain'
testref = 'bigtest'
print(f"Trainref: {trainref}, testref: {testref}")
trainset = loadData.loadDataset(trainref,
flipHorizontal=True,
flipVertical=True,
meanNorm=True,
stdNorm=False)
train_loader = torch.utils.data.DataLoader(trainset,
batch_size=500,
shuffle=True,
num_workers=2)
testset = loadData.loadDataset(testref,
flipHorizontal=False,
flipVertical=False,
meanNorm=True,
stdNorm=False)
test_loader = torch.utils.data.DataLoader(testset,
batch_size=12,
shuffle=True,
num_workers=2)
train = True
for epoch in range(epochs):
if train:
train_losses = []
for i, (images, labels) in enumerate(train_loader):
optimizer.zero_grad()
inputs = images.float()
if cuda:
inputs = inputs.cuda()
labels = labels.cuda()
outputs = model(inputs)
loss = loss_fn(outputs, labels)
loss.backward()
optimizer.step()
train_losses.append(loss.item())
mean_train_losses.append(np.mean(train_losses))
print("Train losses: ", np.mean(train_losses))
correct = 0
total = 0
with torch.no_grad():
for images, labels in test_loader:
inputs = images.float()
if cuda:
inputs = inputs.cuda()
labels = labels.cuda()
outputs = model(inputs)
_, predicted = torch.max(outputs.data, 1)
correct += (predicted == labels).sum().item()
total += labels.size(0)
if epoch % 10 == 0:
# Save model
torch.save(model.state_dict(), f"models/model_{epoch}.pth")
accuracy = 100 * correct / total
print('epoch : {}, train loss : {:.4f} accuracy: {:.4f}'.format(
epoch + 1, np.mean(train_losses), accuracy))
def runExperiments(dataset_values, model_class_values, norm_values,
approaches_values, batch_number, sample_count, gen_cf_for,
process_id):
for dataset_string in dataset_values:
print(f'\n\nExperimenting with dataset_string = `{dataset_string}`')
for model_class_string in model_class_values:
print(
f'\tExperimenting with model_class_string = `{model_class_string}`'
)
for norm_type_string in norm_values:
print(
f'\t\tExperimenting with norm_type_string = `{norm_type_string}`'
)
for approach_string in approaches_values:
print(
f'\t\t\tExperimenting with approach_string = `{approach_string}`'
)
# if norm_type_string == 'two_norm':
# raise Exception(f'{norm_type_string} not supported.')
if model_class_string in {'tree', 'forest'}:
one_hot = False
elif model_class_string in {'lr', 'mlp'}:
one_hot = True
else:
raise Exception(
f'{model_class_string} not recognized as a valid `model_class_string`.'
)
# prepare experiment folder
experiment_name = f'{dataset_string}__{model_class_string}__{norm_type_string}__{approach_string}__batch{batch_number}__samples{sample_count}__pid{process_id}'
experiment_folder_name = f"_experiments/{datetime.now().strftime('%Y.%m.%d_%H.%M.%S')}__{experiment_name}"
explanation_folder_name = f'{experiment_folder_name}/__explanation_log'
minimum_distance_folder_name = f'{experiment_folder_name}/__minimum_distances'
os.mkdir(f'{experiment_folder_name}')
os.mkdir(f'{explanation_folder_name}')
os.mkdir(f'{minimum_distance_folder_name}')
log_file = open(
f'{experiment_folder_name}/log_experiment.txt', 'w')
# save some files
dataset_obj = loadData.loadDataset(dataset_string,
return_one_hot=one_hot,
load_from_cache=False,
debug_flag=False)
pickle.dump(
dataset_obj,
open(f'{experiment_folder_name}/_dataset_obj', 'wb'))
# training portion used to train models
# testing portion used to compute counterfactuals
X_train, X_test, y_train, y_test = dataset_obj.getTrainTestSplit(
)
standard_deviations = list(X_train.std())
# train the model
# model_trained = modelTraining.trainAndSaveModels(
# model_class_string,
# dataset_string,
# experiment_folder_name,
# )
model_trained = loadModel.loadModelForDataset(
model_class_string,
dataset_string,
experiment_folder_name=experiment_folder_name)
# get the predicted labels (only test set)
# X_test = pd.concat([X_train, X_test]) # ONLY ACTIVATE THIS WHEN TEST SET IS NOT LARGE ENOUGH TO GEN' MODEL RECON DATASET
X_test_pred_labels = model_trained.predict(X_test)
all_pred_data_df = X_test
# IMPORTANT: note that 'y' is actually 'pred_y', not 'true_y'
all_pred_data_df['y'] = X_test_pred_labels
neg_pred_data_df = all_pred_data_df.where(
all_pred_data_df['y'] == 0).dropna()
pos_pred_data_df = all_pred_data_df.where(
all_pred_data_df['y'] == 1).dropna()
batch_start_index = batch_number * sample_count
batch_end_index = (batch_number + 1) * sample_count
# generate counterfactuals for {only negative, negative & positive} samples
if gen_cf_for == 'neg_only':
iterate_over_data_df = neg_pred_data_df[
batch_start_index:
batch_end_index] # choose only a subset to compare
observable_data_df = pos_pred_data_df
elif gen_cf_for == 'pos_only':
iterate_over_data_df = pos_pred_data_df[
batch_start_index:
batch_end_index] # choose only a subset to compare
observable_data_df = neg_pred_data_df
elif gen_cf_for == 'neg_and_pos':
iterate_over_data_df = all_pred_data_df[
batch_start_index:
batch_end_index] # choose only a subset to compare
observable_data_df = all_pred_data_df
else:
raise Exception(
f'{gen_cf_for} not recognized as a valid `gen_cf_for`.'
)
# convert to dictionary for easier enumeration (iteration)
iterate_over_data_dict = iterate_over_data_df.T.to_dict()
observable_data_dict = observable_data_df.T.to_dict()
# loop through samples for which we desire a counterfactual,
# (to be saved as part of the same file of minimum distances)
explanation_counter = 1
all_minimum_distances = {}
for factual_sample_index, factual_sample in iterate_over_data_dict.items(
):
factual_sample['y'] = bool(factual_sample['y'])
print(
'\t\t\t\t'
f'Generating explanation for\t'
f'batch #{batch_number}\t'
f'sample #{explanation_counter}/{len(iterate_over_data_dict.keys())}\t'
f'(sample index {factual_sample_index}): ',
end='') # , file=log_file)
explanation_counter = explanation_counter + 1
explanation_file_name = f'{explanation_folder_name}/sample_{factual_sample_index}.txt'
explanation_object = generateExplanations(
approach_string,
explanation_file_name,
model_trained,
dataset_obj,
factual_sample,
norm_type_string,
observable_data_dict, # used solely for minimum_observable method
standard_deviations, # used solely for feature_tweaking method
)
if 'MINT' in approach_string:
print(
f'\t- scf_found: {explanation_object["scf_found"]} -'
f'\t- scf_plaus: {explanation_object["scf_plausible"]} -'
f'\t- scf_time: {explanation_object["scf_time"]:.4f} -'
f'\t- int_cost: {explanation_object["int_cost"]:.4f} -'
f'\t- scf_dist: {explanation_object["scf_distance"]:.4f} -'
) # , file=log_file)
else: # 'MACE' or other..
print(
f'\t- cfe_found: {explanation_object["cfe_found"]} -'
f'\t- cfe_plaus: {explanation_object["cfe_plausible"]} -'
f'\t- cfe_time: {explanation_object["cfe_time"]:.4f} -'
f'\t- int_cost: N/A -'
f'\t- cfe_dist: {explanation_object["cfe_distance"]:.4f} -'
) # , file=log_file)
all_minimum_distances[
f'sample_{factual_sample_index}'] = explanation_object
pickle.dump(
all_minimum_distances,
open(f'{experiment_folder_name}/_minimum_distances',
'wb'))
pprint(
all_minimum_distances,
open(f'{experiment_folder_name}/minimum_distances.txt',
'w'))
def loadModelForDataset(model_class,
dataset_class,
scm_class=None,
num_train_samples=1e5,
fair_nodes=None,
fair_kernel_type=None,
experiment_folder_name=None):
log_file = sys.stdout if experiment_folder_name == None else open(
f'{experiment_folder_name}/log_training.txt', 'w')
if not (model_class in {'lr', 'mlp', 'tree', 'forest'}) and not (
model_class in fairRecourse.FAIR_MODELS):
raise Exception(f'{model_class} not supported.')
if not (dataset_class in {
'synthetic', 'mortgage', 'twomoon', 'german', 'credit', 'compass',
'adult', 'test'
}):
raise Exception(f'{dataset_class} not supported.')
if dataset_class == 'adult':
dataset_obj = loadData.loadDataset(dataset_class,
return_one_hot=False,
load_from_cache=False,
index_offset=1)
else:
dataset_obj = loadData.loadDataset(dataset_class,
return_one_hot=True,
load_from_cache=False,
meta_param=scm_class)
if model_class not in fairRecourse.FAIR_MODELS:
X_train, X_test, y_train, y_test = dataset_obj.getTrainTestSplit()
y_all = pd.concat([y_train, y_test], axis=0)
assert sum(y_all) / len(
y_all) == 0.5, 'Expected class balance should be 50/50%.'
else:
if dataset_class == 'adult':
X_train, X_test, y_train, y_test = dataset_obj.getTrainTestSplit(
with_meta=False, balanced=False)
X_train = pd.concat([X_train], axis=1)[fair_nodes]
X_test = pd.concat([X_test], axis=1)[fair_nodes]
else:
X_train, X_test, U_train, U_test, y_train, y_test = dataset_obj.getTrainTestSplit(
with_meta=True, balanced=False)
X_train = pd.concat([X_train, U_train], axis=1)[fair_nodes]
X_test = pd.concat([X_test, U_test], axis=1)[fair_nodes]
if model_class == 'tree':
model_pretrain = DecisionTreeClassifier()
elif model_class == 'forest':
model_pretrain = RandomForestClassifier()
elif model_class == 'lr':
# IMPORTANT: The default solver changed from ‘liblinear’ to ‘lbfgs’ in 0.22;
# therefore, results may differ slightly from paper.
model_pretrain = LogisticRegression(
) # default penalty='l2', i.e., ridge
elif model_class == 'mlp':
model_pretrain = MLPClassifier(hidden_layer_sizes=(10, 10))
else:
model_pretrain = trainFairClassifier(model_class, fair_kernel_type)
X_train = np.array(X_train)
X_test = np.array(X_test)
y_train = np.array(y_train)
y_test = np.array(y_test)
X_train = X_train[:num_train_samples]
y_train = y_train[:num_train_samples]
training_setup_string = f'[INFO] Training `{model_class}` on {X_train.shape[0]:,} samples ' + \
f'(%{100 * X_train.shape[0] / (X_train.shape[0] + X_test.shape[0]):.2f}' + \
f'of {X_train.shape[0] + X_test.shape[0]:,} samples)...'
print(training_setup_string, file=log_file)
print(training_setup_string)
model_trained = model_pretrain.fit(X_train, y_train)
train_accuracy_string = f'\t[INFO] Training accuracy: %{accuracy_score(y_train, model_trained.predict(X_train)) * 100:.2f}.'
test_accuracy_string = f'\t[INFO] Testing accuracy: %{accuracy_score(y_test, model_trained.predict(X_test)) * 100:.2f}.'
print(train_accuracy_string, file=log_file)
print(test_accuracy_string, file=log_file)
print(train_accuracy_string)
print(test_accuracy_string)
if hasattr(model_trained, 'best_estimator_'):
hyperparams_string = f'\t[INFO] Hyper-parameters of best classifier selected by CV:\n\t{model_trained.best_estimator_}'
print(hyperparams_string, file=log_file)
print(hyperparams_string)
# shouldn't deal with bad model; arbitrarily select offset to be 70% accuracy
tmp = accuracy_score(y_train, model_trained.predict(X_train))
# TODO (fair): added try except loop for use of nonlinear classifiers in fairness experiments
try:
assert tmp > 0.70, f'Model accuracy only {tmp}'
except:
print('[INFO] logistic regression accuracy may be low (<70%)')
pass
classifier_obj = model_trained
visualizeDatasetAndFixedModel(dataset_obj, classifier_obj,
experiment_folder_name)
feature_names = dataset_obj.getInputAttributeNames(
'kurz') # easier to read (nothing to do with one-hot vs non-hit!)
if model_class == 'tree':
if SIMPLIFY_TREES:
print('[INFO] Simplifying decision tree...', end='', file=log_file)
model_trained.tree_ = treeUtils.simplifyDecisionTree(
model_trained, False)
print('\tdone.', file=log_file)
# treeUtils.saveTreeVisualization(model_trained, model_class, '', X_test, feature_names, experiment_folder_name)
elif model_class == 'forest':
for tree_idx in range(len(model_trained.estimators_)):
if SIMPLIFY_TREES:
print(
f'[INFO] Simplifying decision tree (#{tree_idx + 1}/{len(model_trained.estimators_)})...',
end='',
file=log_file)
model_trained.estimators_[
tree_idx].tree_ = treeUtils.simplifyDecisionTree(
model_trained.estimators_[tree_idx], False)
print('\tdone.', file=log_file)
# treeUtils.saveTreeVisualization(model_trained.estimators_[tree_idx], model_class, f'tree{tree_idx}', X_test, feature_names, experiment_folder_name)
if experiment_folder_name:
pickle.dump(model_trained,
open(f'{experiment_folder_name}/_model_trained', 'wb'))
return model_trained
distances = sorted(distances, key=lambda x: x[1])
labels = list()
for i in range(K):
labels.append(distances[i][0])
counter = Counter(labels)
prediction = counter.most_common(1)[0][0]
if (prediction == testY):
correct += 1
total = len(y_test)
print("Accuracy = %s" % (correct / total))
K = 3
X, Y, imgPaths = loadDataset("HiraganaGit", loadAgain=False)
indices = np.arange(len(X))
# np.random.seed(3)
np.random.shuffle(indices)
X = X[indices]
Y = Y[indices]
N = X.shape[0]
Ntrain = int(N * 80 / 100)
Ntest = int(N * 20 / 100)
x_train = X[:Ntrain].reshape((Ntrain, 1, 84, 83))
y_train = Y[:Ntrain]
def loadModelForDataset(model_class,
dataset_string,
scm_class=None,
experiment_folder_name=None):
log_file = sys.stdout if experiment_folder_name == None else open(
f'{experiment_folder_name}/log_training.txt', 'w')
if not (model_class in {'lr', 'mlp', 'tree', 'forest'}):
raise Exception(f'{model_class} not supported.')
if not (dataset_string in {
'synthetic', 'mortgage', 'twomoon', 'german', 'credit', 'compass',
'adult', 'test', 'iris', 'housing', 'wine', 'poker'
}):
raise Exception(f'{dataset_string} not supported.')
if model_class in {'tree', 'forest'}:
one_hot = False
elif model_class in {'lr', 'mlp'}:
one_hot = True
dataset_obj = loadData.loadDataset(dataset_string,
return_one_hot=one_hot,
load_from_cache=False,
meta_param=scm_class)
X_train, X_test, y_train, y_test = dataset_obj.getTrainTestSplit()
X_all = pd.concat([X_train, X_test], axis=0)
y_all = pd.concat([y_train, y_test], axis=0)
if dataset_obj.problem_type == 'classification':
assert y_all.value_counts().nunique(
) == 1 # Expected class balance should be equal.
feature_names = dataset_obj.getInputAttributeNames(
'kurz') # easier to read (nothing to do with one-hot vs non-hit!)
# Define model type
if model_class == 'tree':
if dataset_obj.problem_type == 'classification':
model_pretrain = DecisionTreeClassifier()
elif dataset_obj.problem_type == 'regression':
model_pretrain = DecisionTreeRegressor()
elif model_class == 'forest':
if dataset_obj.problem_type == 'classification':
model_pretrain = RandomForestClassifier(n_estimators=100)
elif dataset_obj.problem_type == 'regression':
model_pretrain = RandomForestRegressor(n_estimators=100)
elif model_class == 'lr':
# IMPORTANT: The default solver changed from ‘liblinear’ to ‘lbfgs’ in 0.22;
# therefore, results may differ slightly from paper.
model_pretrain = LogisticRegression(
) # default penalty='l2', i.e., ridge
elif model_class == 'mlp':
if dataset_obj.problem_type == 'classification':
model_pretrain = MLPClassifier(hidden_layer_sizes=(10, 10))
elif dataset_obj.problem_type == 'regression':
model_pretrain = MLPRegressor(hidden_layer_sizes=(10, 10))
tmp_text = f'[INFO] Training `{model_class}` on {X_train.shape[0]:,} samples ' + \
f'(%{100 * X_train.shape[0] / (X_train.shape[0] + X_test.shape[0]):.2f} ' + \
f'of {X_train.shape[0] + X_test.shape[0]:,} samples)...'
print(tmp_text)
print(tmp_text, file=log_file)
model_trained = model_pretrain.fit(X_train, y_train)
if dataset_obj.problem_type == 'classification':
print(
f'\tTraining accuracy: %{accuracy_score(y_train, model_trained.predict(X_train)) * 100:.2f}',
file=log_file)
print(
f'\tTesting accuracy: %{accuracy_score(y_test, model_trained.predict(X_test)) * 100:.2f}',
file=log_file)
print(
f'\tTraining accuracy: %{accuracy_score(y_train, model_trained.predict(X_train)) * 100:.2f}'
)
print(
f'\tTesting accuracy: %{accuracy_score(y_test, model_trained.predict(X_test)) * 100:.2f}'
)
else:
print(
f'\tTraining MAE: {mean_absolute_error(y_train, model_trained.predict(X_train)):.2f}',
file=log_file)
print(
f'\tTesting MAE: {mean_absolute_error(y_test, model_trained.predict(X_test)):.2f}',
file=log_file)
print(
f'\tTraining MAE: {mean_absolute_error(y_train, model_trained.predict(X_train)):.2f}'
)
print(
f'\tTesting MAE: {mean_absolute_error(y_test, model_trained.predict(X_test)):.2f}'
)
print('[INFO] done.\n', file=log_file)
print('[INFO] done.\n')
#assert accuracy_score(y_train, model_trained.predict(X_train)) > 0.70 # TODO uncomment
classifier_obj = model_trained
visualizeDatasetAndFixedModel(dataset_obj, classifier_obj,
experiment_folder_name)
if model_class == 'tree':
if SIMPLIFY_TREES:
print('[INFO] Simplifying decision tree...', end='', file=log_file)
model_trained.tree_ = treeUtils.simplifyDecisionTree(
model_trained, False)
print('\tdone.', file=log_file)
# treeUtils.saveTreeVisualization(model_trained, model_class, '', X_test, feature_names, experiment_folder_name)
elif model_class == 'forest':
for tree_idx in range(len(model_trained.estimators_)):
if SIMPLIFY_TREES:
print(
f'[INFO] Simplifying decision tree (#{tree_idx + 1}/{len(model_trained.estimators_)})...',
end='',
file=log_file)
model_trained.estimators_[
tree_idx].tree_ = treeUtils.simplifyDecisionTree(
model_trained.estimators_[tree_idx], False)
print('\tdone.', file=log_file)
# treeUtils.saveTreeVisualization(model_trained.estimators_[tree_idx], model_class, f'tree{tree_idx}', X_test, feature_names, experiment_folder_name)
if experiment_folder_name:
pickle.dump(model_trained,
open(f'{experiment_folder_name}/_model_trained', 'wb'))
return model_trained
model = Sequential() model.add(Conv2D(50, (5, 5), input_shape=(1, 84, 83), data_format='channels_first', activation='relu')) model.add(MaxPooling2D(pool_size=(2, 2))) model.add(Flatten()) model.add(Dense(128, activation='relu')) model.add(Dense(num_classes, activation='softmax')) # Compile model model.compile(loss='categorical_crossentropy', optimizer='adam', metrics=['accuracy']) return model # DATASET = "Hiragana73" DATASET = "HiraganaGit" #SWITCH THE LINES BELOW IF YOU NEED TO LOAD ALL THE DATA FROM THE DATASET AGAIN X, Y, imgPaths = loadDataset(DATASET, loadAgain=True) #X, Y, imgPaths = loadDataset(DATASET, loadAgain=False) X /= 255 #X has format (height, width, N) indices = np.arange(X.shape[0]) np.random.seed(3) np.random.shuffle(indices) X = X[indices] Y = Y[indices] imgPaths = imgPaths[indices] N = X.shape[0]
