def test_fixed_trial_with_rounding():
dataset = DenseDesignMatrixWrapper(topo_view=to_4d_array(range(12)),
y=np.zeros(12))
splitter = FixedTrialSplitter(n_train_trials=9, valid_set_fraction=0.2)
sets = splitter.split_into_train_valid_test(dataset)
assert np.array_equal(sets['train'].get_topological_view().squeeze(),
range(8))
assert sets['valid'].get_topological_view().squeeze() == 8
assert np.array_equal(sets['test'].get_topological_view().squeeze(),
range(9, 12))
def test_fixed_trial_with_rounding():
dataset = DenseDesignMatrixWrapper(topo_view = to_4d_array(range(12)),
y= np.zeros(12))
splitter = FixedTrialSplitter(n_train_trials=9,
valid_set_fraction=0.2)
sets = splitter.split_into_train_valid_test(dataset)
assert np.array_equal(sets['train'].get_topological_view().squeeze(),
range(8))
assert sets['valid'].get_topological_view().squeeze() == 8
assert np.array_equal(sets['test'].get_topological_view().squeeze(),
range(9,12))
def create_default_experiment(final_layer,
dataset,
n_epochs=100,
**overwrite_args):
# make special case for this, since we access dataset.X here,
# which might not exist
if 'splitter' not in overwrite_args:
n_trials = len(dataset.X)
splitter = FixedTrialSplitter(n_train_trials=n_trials // 2,
valid_set_fraction=0.2)
else:
splitter = overwrite_args['splitter']
monitors = [MisclassMonitor(), LossMonitor(), RuntimeMonitor()]
stop_criterion = MaxEpochs(n_epochs)
exp_args = dict(
splitter=splitter,
preprocessor=None,
iterator=BalancedBatchIterator(batch_size=45),
loss_expression=lasagne.objectives.categorical_crossentropy,
updates_expression=lasagne.updates.adam,
updates_modifier=None,
monitors=monitors,
stop_criterion=stop_criterion,
remember_best_chan='valid_misclass',
run_after_early_stop=True,
batch_modifier=None)
exp_args.update(**overwrite_args)
exp = Experiment(final_layer, dataset, **exp_args)
return exp
def _run_experiments_with_string(self, experiment_index, train_str):
assert experiment_index >= self._get_start_id()
assert experiment_index < self._get_stop_id()
lasagne.random.set_rng(RandomState(9859295))
# Save train string now, will be overwritten later after
# input dimensions determined, save now for debug in
# case of crash
if not self._dry_run:
self._save_train_string(train_str, experiment_index)
starttime = time.time()
train_dict = self._load_without_layers(train_str)
log.info("With params...")
if not self._quiet:
pprint(train_dict['original_params'])
if self._dry_run:
# Do not do the loading or training...
# Only go until here to show the train params
return
if self._batch_test:
# TODO: put into function
# load layers, load data with dimensions of the layer
# create experiment with max epochs 2, run
from braindecode.datasets.random import RandomSet
train_str = train_str.replace('in_cols', '1')
train_str = train_str.replace('in_sensors', '32')
train_dict = yaml_parse.load(train_str)
layers = load_layers_from_dict(train_dict)
final_layer = layers[-1]
n_chans = layers[0].shape[1]
n_classes = final_layer.output_shape[1]
n_samples = 500000
# set n sample perds in case of cnt model
if (np.any([hasattr(l, 'n_stride') for l in layers])):
n_sample_preds = get_n_sample_preds(final_layer)
log.info("Setting n_sample preds automatically to {:d}".format(
n_sample_preds))
for monitor in train_dict['exp_args']['monitors']:
if hasattr(monitor, 'n_sample_preds'):
monitor.n_sample_preds = n_sample_preds
train_dict['exp_args'][
'iterator'].n_sample_preds = n_sample_preds
log.info("Input window length is {:d}".format(
get_model_input_window(final_layer)))
# make at least batches
n_samples = int(n_sample_preds * 1.5 * 200)
dataset = RandomSet(topo_shape=[n_samples, n_chans, 1, 1],
y_shape=[n_samples, n_classes])
dataset.load()
splitter = FixedTrialSplitter(n_train_trials=int(n_samples * 0.8),
valid_set_fraction=0.1)
train_dict['exp_args']['preprocessor'] = None
train_dict['exp_args']['stop_criterion'] = MaxEpochs(1)
train_dict['exp_args']['iterator'].batch_size = 1
# TODO: set stop criterion to max epochs =1
# change batch_size in iterator
exp = Experiment(final_layer, dataset, splitter,
**train_dict['exp_args'])
exp.setup()
exp.run_until_early_stop()
datasets = exp.dataset_provider.get_train_valid_test(exp.dataset)
for batch_size in range(32, 200, 5):
train_dict['exp_args']['stop_criterion'].num_epochs += 2
log.info("Running with batch size {:d}".format(batch_size))
train_dict['exp_args']['iterator'].batch_size = batch_size
exp.run_until_stop(datasets, remember_best=False)
return
dataset = train_dict['dataset']
dataset.load()
iterator = train_dict['exp_args']['iterator']
splitter = train_dict['dataset_splitter']
if dataset.__class__.__name__ == 'EpilepsySet':
log.info("Reducing to float16 for epilepsy set...")
dataset.seizure_topo = np.float16(dataset.seizure_topo)
dataset.non_seizure_topo = np.float16(dataset.non_seizure_topo)
else:
# todo: remove this?
log.info(
"Determining dataset dimensions to set possible model params..."
)
train_set = splitter.split_into_train_valid_test(dataset)['train']
batch_gen = iterator.get_batches(train_set, shuffle=True)
dummy_batch_topo = batch_gen.next()[0]
del train_set
# not for ultrasound: assert 'in_sensors' in train_str
# not for cnt net assert 'in_rows' in train_str
# not for resnet: assert 'in_cols' in train_str
train_str = train_str.replace('in_sensors',
str(dummy_batch_topo.shape[1]))
train_str = train_str.replace('in_rows',
str(dummy_batch_topo.shape[2]))
train_str = train_str.replace('in_cols',
str(dummy_batch_topo.shape[3]))
self._save_train_string(train_str, experiment_index)
# reset rng for actual loading of layers, so you can reproduce it
# when you load the file later
lasagne.random.set_rng(RandomState(9859295))
train_dict = yaml_parse.load(train_str)
layers = load_layers_from_dict(train_dict)
final_layer = layers[-1]
assert len(
np.setdiff1d(
layers, lasagne.layers.get_all_layers(final_layer))) == 0, (
"All layers "
"should be used, unused {:s}".format(
str(
np.setdiff1d(
layers,
lasagne.layers.get_all_layers(final_layer)))))
# Set n sample preds in case of cnt model
if (np.any([hasattr(l, 'n_stride') for l in layers])):
# Can this be moved up and duplication in if clause( batch test,
# more above) be removed?
n_sample_preds = get_n_sample_preds(final_layer)
log.info("Setting n_sample preds automatically to {:d}".format(
n_sample_preds))
for monitor in train_dict['exp_args']['monitors']:
if hasattr(monitor, 'n_sample_preds'):
monitor.n_sample_preds = n_sample_preds
train_dict['exp_args']['iterator'].n_sample_preds = n_sample_preds
log.info("Input window length is {:d}".format(
get_model_input_window(final_layer)))
if not self._cross_validation:
# for now lets not do that, current models seem fine again.
# if (dataset.__class__.__name__ == 'EpilepsySet') and self._pred_loss_hack:
# from braindecode.epilepsy.experiment import EpilepsyExperiment
# log.info("Creating epilepsy experiment with the pred loss hack")
# exp = EpilepsyExperiment(final_layer, dataset, splitter,
# **train_dict['exp_args'])
# else:
exp = Experiment(final_layer, dataset, splitter,
**train_dict['exp_args'])
exp.setup()
exp.run()
endtime = time.time()
model = exp.final_layer
# dummy predictions targets
predictions = [0, 3, 1, 2, 3, 4]
targets = [3, 4, 1, 2, 3, 4]
result_or_results = Result(
parameters=train_dict['original_params'],
templates={},
training_time=endtime - starttime,
monitor_channels=exp.monitor_chans,
predictions=predictions,
targets=targets)
else: # cross validation
assert False, (
"cross validation not used in long time, not up to date"
" for example targets predictions not added")
# default 5 folds for now
n_folds = train_dict['num_cv_folds']
exp_cv = ExperimentCrossValidation(final_layer,
dataset,
exp_args=train_dict['exp_args'],
n_folds=n_folds,
shuffle=self._shuffle)
exp_cv.run()
endtime = time.time()
result_or_results = []
for i_fold in xrange(n_folds):
res = Result(parameters=train_dict['original_params'],
templates={},
training_time=endtime - starttime,
monitor_channels=exp_cv.all_monitor_chans[i_fold],
predictions=[0, 3, 1, 2, 3, 4],
targets=[3, 4, 1, 2, 3, 4])
result_or_results.append(res)
model = exp_cv.all_layers
if not os.path.exists(self._folder_paths[experiment_index]):
os.makedirs(self._folder_paths[experiment_index])
result_file_name = self._get_result_save_path(experiment_index)
log.info("Saving result to {:s}...".format(result_file_name))
with open(result_file_name, 'w') as resultfile:
pickle.dump(result_or_results, resultfile)
model_file_name = self._get_model_save_path(experiment_index)
param_file_name = model_file_name.replace('.pkl', '.npy')
np.save(param_file_name, lasagne.layers.get_all_param_values(model))
# Possibly make kaggle submission file
if isinstance(dataset,
KaggleGraspLiftSet) and splitter.use_test_as_valid:
experiment_save_id = int(
self._base_save_paths[experiment_index].split("/")[-1])
create_submission_csv_for_one_subject(
self._folder_paths[experiment_index], exp.dataset, iterator,
train_dict['exp_args']['preprocessor'], final_layer,
experiment_save_id)
elif isinstance(
dataset,
AllSubjectsKaggleGraspLiftSet) and splitter.use_test_as_valid:
experiment_save_id = int(
self._base_save_paths[experiment_index].split("/")[-1])
create_submission_csv_for_all_subject_model(
self._folder_paths[experiment_index], exp.dataset,
exp.dataset_provider, iterator, final_layer,
experiment_save_id)
elif isinstance(splitter, SeveralSetsSplitter):
pass # nothing to do in this case
# very hacky create predictions targets :)
# Not done earlier as there were weird theano crashes
if exp.monitors[2].__class__.__name__ == 'CntTrialMisclassMonitor':
del dataset
del exp
add_labels_to_cnt_exp_result(
self._base_save_paths[experiment_index])
def test_experiment_fixed_split():
""" Regression test, checking that values have not changed from original run"""
data_rng = RandomState(398765905)
rand_topo = data_rng.rand(200, 10, 10, 3).astype(np.float32)
rand_y = np.int32(data_rng.rand(200) > 0.5)
rand_topo[rand_y == 1] += 0.01
rand_set = DenseDesignMatrixWrapper(topo_view=rand_topo, y=rand_y)
lasagne.random.set_rng(RandomState(9859295))
in_layer = InputLayer(shape=[None, 10, 10, 3])
network = DenseLayer(incoming=in_layer,
name="softmax",
num_units=2,
nonlinearity=lasagne.nonlinearities.softmax)
updates_modifier = MaxNormConstraint({'softmax': 0.5})
dataset = rand_set
dataset_iterator = BalancedBatchIterator(batch_size=60)
preprocessor = OnlineAxiswiseStandardize(axis=['c', 1])
dataset_splitter = FixedTrialSplitter(n_train_trials=150,
valid_set_fraction=0.1)
updates_var_func = lasagne.updates.adam
loss_var_func = lasagne.objectives.categorical_crossentropy
monitors = [
braindecode.veganlasagne.monitors.LossMonitor(),
braindecode.veganlasagne.monitors.MisclassMonitor(),
braindecode.veganlasagne.monitors.RuntimeMonitor()
]
stop_criterion = braindecode.veganlasagne.stopping.MaxEpochs(num_epochs=30)
exp = Experiment(network,
dataset,
dataset_splitter,
preprocessor,
dataset_iterator,
loss_var_func,
updates_var_func,
updates_modifier,
monitors,
stop_criterion,
remember_best_chan='valid_misclass',
run_after_early_stop=True)
exp.setup()
exp.run()
assert np.allclose([
0.548148, 0.540741, 0.503704, 0.451852, 0.392593, 0.370370, 0.340741,
0.281481, 0.237037, 0.207407, 0.192593, 0.177778, 0.133333, 0.111111,
0.111111, 0.103704, 0.096296, 0.088889, 0.088889, 0.081481, 0.074074,
0.066667, 0.066667, 0.059259, 0.059259, 0.051852, 0.037037, 0.037037,
0.029630, 0.029630, 0.029630, 0.053333, 0.053333, 0.053333, 0.053333,
0.040000, 0.040000, 0.026667, 0.026667, 0.026667, 0.026667, 0.033333,
0.033333, 0.033333, 0.033333, 0.026667, 0.020000, 0.020000, 0.020000
],
exp.monitor_chans['train_misclass'],
rtol=1e-4,
atol=1e-4)
assert np.allclose([
0.400000, 0.400000, 0.400000, 0.400000, 0.400000, 0.400000, 0.400000,
0.400000, 0.333333, 0.333333, 0.333333, 0.266667, 0.266667, 0.266667,
0.266667, 0.266667, 0.266667, 0.266667, 0.266667, 0.266667, 0.266667,
0.266667, 0.266667, 0.333333, 0.333333, 0.333333, 0.333333, 0.266667,
0.266667, 0.266667, 0.266667, 0.266667, 0.266667, 0.266667, 0.266667,
0.200000, 0.200000, 0.133333, 0.133333, 0.133333, 0.133333, 0.133333,
0.133333, 0.133333, 0.133333, 0.066667, 0.000000, 0.000000, 0.000000
],
exp.monitor_chans['valid_misclass'],
rtol=1e-4,
atol=1e-4)
assert np.allclose([
0.460000, 0.420000, 0.420000, 0.420000, 0.420000, 0.440000, 0.420000,
0.420000, 0.400000, 0.400000, 0.380000, 0.400000, 0.400000, 0.400000,
0.400000, 0.400000, 0.420000, 0.420000, 0.420000, 0.400000, 0.400000,
0.400000, 0.380000, 0.380000, 0.380000, 0.380000, 0.400000, 0.400000,
0.420000, 0.420000, 0.420000, 0.420000, 0.420000, 0.420000, 0.420000,
0.420000, 0.400000, 0.400000, 0.380000, 0.400000, 0.400000, 0.400000,
0.400000, 0.400000, 0.360000, 0.360000, 0.380000, 0.380000, 0.380000
],
exp.monitor_chans['test_misclass'],
rtol=1e-4,
atol=1e-4)
assert np.allclose([
1.200389, 0.777420, 0.740212, 0.705151, 0.672329, 0.641764, 0.613245,
0.586423, 0.561397, 0.538399, 0.517073, 0.497741, 0.479949, 0.463601,
0.448505, 0.434583, 0.421652, 0.409739, 0.398721, 0.388490, 0.378988,
0.370121, 0.361965, 0.354295, 0.347159, 0.340496, 0.334237, 0.328328,
0.322803, 0.317624, 0.312765, 0.340091, 0.335658, 0.330868, 0.325923,
0.320895, 0.316027, 0.311290, 0.306683, 0.302364, 0.298264, 0.294475,
0.290957, 0.287673, 0.284664, 0.281860, 0.279309, 0.276918, 0.274709
],
exp.monitor_chans['train_loss'],
rtol=1e-4,
atol=1e-4)
assert np.allclose([
0.766092, 0.642237, 0.636960, 0.629884, 0.623676, 0.618789, 0.613821,
0.609264, 0.605430, 0.601499, 0.598178, 0.594579, 0.591720, 0.589461,
0.587571, 0.585673, 0.583782, 0.581606, 0.580687, 0.579677, 0.579276,
0.578903, 0.578918, 0.578901, 0.579020, 0.579575, 0.580291, 0.581120,
0.581591, 0.582552, 0.583647, 0.585879, 0.582269, 0.571548, 0.555956,
0.536982, 0.517474, 0.496652, 0.474400, 0.453094, 0.432208, 0.412533,
0.394271, 0.377036, 0.361311, 0.346461, 0.333406, 0.321266, 0.310158
],
exp.monitor_chans['valid_loss'],
rtol=1e-4,
atol=1e-4)
assert np.allclose([
1.069603, 0.751982, 0.746711, 0.742126, 0.738055, 0.734703, 0.731921,
0.729251, 0.727241, 0.724931, 0.723189, 0.721885, 0.720605, 0.719565,
0.718930, 0.718664, 0.718671, 0.718747, 0.719004, 0.718935, 0.719153,
0.719381, 0.719815, 0.720419, 0.721205, 0.721993, 0.722759, 0.723534,
0.724298, 0.724908, 0.725497, 0.725097, 0.725950, 0.726615, 0.726953,
0.727603, 0.728247, 0.728787, 0.729323, 0.729945, 0.730434, 0.731245,
0.732168, 0.732949, 0.734086, 0.735250, 0.736381, 0.737502, 0.738444
],
exp.monitor_chans['test_loss'],
rtol=1e-4,
atol=1e-4)
def test_experiment_sample_windows():
data_rng = RandomState(398765905)
rand_topo = data_rng.rand(200, 10, 10, 3).astype(np.float32)
rand_y = np.int32(data_rng.rand(200) > 0.5)
rand_topo[rand_y == 1] += 0.1
rand_set = DenseDesignMatrixWrapper(topo_view=rand_topo, y=rand_y)
lasagne.random.set_rng(RandomState(9859295))
in_layer = InputLayer(shape=[None, 10, 5, 3])
network = DenseLayer(incoming=in_layer,
name='softmax',
num_units=2,
nonlinearity=lasagne.nonlinearities.softmax)
updates_modifier = MaxNormConstraint({'softmax': 0.5})
dataset = rand_set
dataset_iterator = WindowsIterator(n_samples_per_window=5, batch_size=60)
preprocessor = OnlineAxiswiseStandardize(axis=['c', 1])
dataset_splitter = FixedTrialSplitter(n_train_trials=150,
valid_set_fraction=0.1)
updates_var_func = lasagne.updates.adam
loss_var_func = lasagne.objectives.categorical_crossentropy
monitors = [
braindecode.veganlasagne.monitors.LossMonitor(),
braindecode.veganlasagne.monitors.WindowMisclassMonitor(),
braindecode.veganlasagne.monitors.RuntimeMonitor()
]
stop_criterion = braindecode.veganlasagne.stopping.MaxEpochs(num_epochs=5)
exp = Experiment(network,
dataset,
dataset_splitter,
preprocessor,
dataset_iterator,
loss_var_func,
updates_var_func,
updates_modifier,
monitors,
stop_criterion,
remember_best_chan='valid_misclass',
run_after_early_stop=True)
exp.setup()
exp.run()
assert np.allclose(
[0.629630, 0.140741, 0.029630, 0.022222, 0.000000, 0.000000, 0.000000],
exp.monitor_chans['train_misclass'],
rtol=1e-4,
atol=1e-4)
assert np.allclose(
[0.400000, 0.133333, 0.066667, 0.000000, 0.000000, 0.000000, 0.000000],
exp.monitor_chans['valid_misclass'],
rtol=1e-4,
atol=1e-4)
assert np.allclose(
[0.560000, 0.060000, 0.000000, 0.000000, 0.000000, 0.000000, 0.000000],
exp.monitor_chans['test_misclass'],
rtol=1e-4,
atol=1e-4)
assert np.allclose(
[1.180485, 0.574264, 0.420023, 0.330909, 0.278569, 0.245692, 0.242845],
exp.monitor_chans['train_loss'],
rtol=1e-4,
atol=1e-4)
assert np.allclose(
[1.016782, 0.514049, 0.370485, 0.288948, 0.240913, 0.211189, 0.215967],
exp.monitor_chans['valid_loss'],
rtol=1e-4,
atol=1e-4)
assert np.allclose(
[1.031832, 0.504570, 0.352317, 0.269810, 0.223904, 0.196681, 0.197899],
exp.monitor_chans['test_loss'],
rtol=1e-4,
atol=1e-4)
def _run_experiments_with_string(self, experiment_index, train_str):
assert experiment_index >= self._get_start_id()
assert experiment_index < self._get_stop_id()
lasagne.random.set_rng(RandomState(9859295))
# Save train string now, will be overwritten later after
# input dimensions determined, save now for debug in
# case of crash
if not self._dry_run:
self._save_train_string(train_str, experiment_index)
starttime = time.time()
train_dict = self._load_without_layers(train_str)
log.info("With params...")
if not self._quiet:
pprint(train_dict['original_params'])
if self._dry_run:
# Do not do the loading or training...
# Only go until here to show the train params
return
if self._batch_test:
# TODO: put into function
# load layers, load data with dimensions of the layer
# create experiment with max epochs 2, run
from braindecode.datasets.random import RandomSet
train_str = train_str.replace('in_cols', '1')
train_str = train_str.replace('in_sensors', '32')
train_dict = yaml_parse.load(train_str)
layers = load_layers_from_dict(train_dict)
final_layer = layers[-1]
n_chans = layers[0].shape[1]
n_classes = final_layer.output_shape[1]
n_samples = 500000
# set n sample perds in case of cnt model
if (np.any([hasattr(l, 'n_stride') for l in layers])):
n_sample_preds = get_n_sample_preds(final_layer)
log.info("Setting n_sample preds automatically to {:d}".format(
n_sample_preds))
for monitor in train_dict['exp_args']['monitors']:
if hasattr(monitor, 'n_sample_preds'):
monitor.n_sample_preds = n_sample_preds
train_dict['exp_args']['iterator'].n_sample_preds = n_sample_preds
log.info("Input window length is {:d}".format(
get_model_input_window(final_layer)))
# make at least batches
n_samples = int(n_sample_preds * 1.5 * 200)
dataset = RandomSet(topo_shape=[n_samples, n_chans, 1, 1],
y_shape=[n_samples, n_classes])
dataset.load()
splitter = FixedTrialSplitter(n_train_trials=int(n_samples*0.8),
valid_set_fraction=0.1)
train_dict['exp_args']['preprocessor'] = None
train_dict['exp_args']['stop_criterion'] = MaxEpochs(1)
train_dict['exp_args']['iterator'].batch_size = 1
# TODO: set stop criterion to max epochs =1
# change batch_size in iterator
exp = Experiment(final_layer, dataset, splitter,
**train_dict['exp_args'])
exp.setup()
exp.run_until_early_stop()
datasets = exp.dataset_provider.get_train_valid_test(exp.dataset)
for batch_size in range(32,200,5):
train_dict['exp_args']['stop_criterion'].num_epochs += 2
log.info("Running with batch size {:d}".format(batch_size))
train_dict['exp_args']['iterator'].batch_size = batch_size
exp.run_until_stop(datasets, remember_best=False)
return
dataset = train_dict['dataset']
dataset.load()
iterator = train_dict['exp_args']['iterator']
splitter = train_dict['dataset_splitter']
if dataset.__class__.__name__ == 'EpilepsySet':
log.info("Reducing to float16 for epilepsy set...")
dataset.seizure_topo = np.float16(dataset.seizure_topo)
dataset.non_seizure_topo = np.float16(dataset.non_seizure_topo)
else:
# todo: remove this?
log.info("Determining dataset dimensions to set possible model params...")
train_set = splitter.split_into_train_valid_test(dataset)['train']
batch_gen = iterator.get_batches(train_set, shuffle=True)
dummy_batch_topo = batch_gen.next()[0]
del train_set
# not for ultrasound: assert 'in_sensors' in train_str
# not for cnt net assert 'in_rows' in train_str
# not for resnet: assert 'in_cols' in train_str
train_str = train_str.replace('in_sensors',
str(dummy_batch_topo.shape[1]))
train_str = train_str.replace('in_rows',
str(dummy_batch_topo.shape[2]))
train_str = train_str.replace('in_cols',
str(dummy_batch_topo.shape[3]))
self._save_train_string(train_str, experiment_index)
# reset rng for actual loading of layers, so you can reproduce it
# when you load the file later
lasagne.random.set_rng(RandomState(9859295))
train_dict = yaml_parse.load(train_str)
layers = load_layers_from_dict(train_dict)
final_layer = layers[-1]
assert len(np.setdiff1d(layers,
lasagne.layers.get_all_layers(final_layer))) == 0, ("All layers "
"should be used, unused {:s}".format(str(np.setdiff1d(layers,
lasagne.layers.get_all_layers(final_layer)))))
# Set n sample preds in case of cnt model
if (np.any([hasattr(l, 'n_stride') for l in layers])):
# Can this be moved up and duplication in if clause( batch test,
# more above) be removed?
n_sample_preds = get_n_sample_preds(final_layer)
log.info("Setting n_sample preds automatically to {:d}".format(
n_sample_preds))
for monitor in train_dict['exp_args']['monitors']:
if hasattr(monitor, 'n_sample_preds'):
monitor.n_sample_preds = n_sample_preds
train_dict['exp_args']['iterator'].n_sample_preds = n_sample_preds
log.info("Input window length is {:d}".format(
get_model_input_window(final_layer)))
if not self._cross_validation:
# for now lets not do that, current models seem fine again.
# if (dataset.__class__.__name__ == 'EpilepsySet') and self._pred_loss_hack:
# from braindecode.epilepsy.experiment import EpilepsyExperiment
# log.info("Creating epilepsy experiment with the pred loss hack")
# exp = EpilepsyExperiment(final_layer, dataset, splitter,
# **train_dict['exp_args'])
# else:
exp = Experiment(final_layer, dataset, splitter,
**train_dict['exp_args'])
exp.setup()
exp.run()
endtime = time.time()
model = exp.final_layer
# dummy predictions targets
predictions = [0,3,1,2,3,4]
targets = [3,4,1,2,3,4]
result_or_results = Result(parameters=train_dict['original_params'],
templates={},
training_time=endtime - starttime,
monitor_channels=exp.monitor_chans,
predictions=predictions,
targets=targets)
else: # cross validation
assert False, ("cross validation not used in long time, not up to date"
" for example targets predictions not added")
# default 5 folds for now
n_folds = train_dict['num_cv_folds']
exp_cv = ExperimentCrossValidation(final_layer,
dataset, exp_args=train_dict['exp_args'], n_folds=n_folds,
shuffle=self._shuffle)
exp_cv.run()
endtime = time.time()
result_or_results = []
for i_fold in xrange(n_folds):
res = Result(parameters=train_dict['original_params'],
templates={},
training_time=endtime - starttime,
monitor_channels=exp_cv.all_monitor_chans[i_fold],
predictions=[0,3,1,2,3,4],
targets=[3,4,1,2,3,4])
result_or_results.append(res)
model = exp_cv.all_layers
if not os.path.exists(self._folder_paths[experiment_index]):
os.makedirs(self._folder_paths[experiment_index])
result_file_name = self._get_result_save_path(experiment_index)
log.info("Saving result...")
with open(result_file_name, 'w') as resultfile:
pickle.dump(result_or_results, resultfile)
model_file_name = self._get_model_save_path(experiment_index)
param_file_name = model_file_name.replace('.pkl', '.npy')
np.save(param_file_name, lasagne.layers.get_all_param_values(model))
# Possibly make kaggle submission file
if isinstance(dataset, KaggleGraspLiftSet) and splitter.use_test_as_valid:
experiment_save_id = int(
self._base_save_paths[experiment_index].split("/")[-1])
create_submission_csv_for_one_subject(self._folder_paths[experiment_index],
exp.dataset, iterator,
train_dict['exp_args']['preprocessor'],
final_layer, experiment_save_id)
elif isinstance(dataset, AllSubjectsKaggleGraspLiftSet) and splitter.use_test_as_valid:
experiment_save_id = int(
self._base_save_paths[experiment_index].split("/")[-1])
create_submission_csv_for_all_subject_model(
self._folder_paths[experiment_index],
exp.dataset, exp.dataset_provider, iterator,
final_layer, experiment_save_id)
elif isinstance(splitter, SeveralSetsSplitter):
pass # nothing to do in this case
# very hacky create predictions targets :)
# Not done earlier as there were weird theano crashes
if exp.monitors[2].__class__.__name__ == 'CntTrialMisclassMonitor':
del dataset
del exp
add_labels_to_cnt_exp_result(self._base_save_paths[experiment_index])