def main(args):
trainer, predictor = models.MODELS[args.model_name]()
time_dim = trainer.inputs['data'].shape[2]
if args.init_param_file:
print "Loading parameters: %s" % args.init_param_file
trainer.load_param_values(args.init_param_file)
print "Opening %s" % args.training_file
stash = biggie.Stash(args.training_file, cache=True)
stream = S.minibatch(D.create_target_stream(
stash,
time_dim,
max_pitch_shift=0,
bins_per_pitch=1,
mapper=D.FX.note_numbers_to_pitch,
sample_func=D.slice_note_entity),
batch_size=BATCH_SIZE)
print "Starting '%s'" % args.trial_name
driver = optimus.Driver(graph=trainer,
name=args.trial_name,
output_directory=args.output_directory)
hyperparams = dict(learning_rate=LEARNING_RATE, dropout=DROPOUT)
predictor_file = path.join(driver.output_directory, args.predictor_file)
optimus.save(predictor, def_file=predictor_file)
driver.fit(stream, hyperparams=hyperparams, **DRIVER_ARGS)
def main(args):
sim_margin = -RADIUS * args.margin
trainer, predictor, zerofilter = models.iX_c3f2_oY(20, 3, 'xlarge')
time_dim = trainer.inputs['cqt'].shape[2]
if args.init_param_file:
print("Loading parameters: {0}".format(args.init_param_file))
trainer.load_param_values(args.init_param_file)
print("Opening {0}".format(args.training_file))
stash = biggie.Stash(args.training_file, cache=True)
stream = S.minibatch(
D.create_pairwise_stream(stash, time_dim,
working_size=100, threshold=0.05),
batch_size=BATCH_SIZE)
stream = D.batch_filter(
stream, zerofilter, threshold=2.0**-16, min_batch=1,
max_consecutive_skips=100, sim_margin=sim_margin, diff_margin=RADIUS)
print("Starting '{0}'".format(args.trial_name))
driver = optimus.Driver(
graph=trainer,
name=args.trial_name,
output_directory=futil.create_directory(args.output_directory))
hyperparams = dict(
learning_rate=LEARNING_RATE,
sim_margin=sim_margin, diff_margin=RADIUS)
predictor_file = path.join(driver.output_directory, args.predictor_file)
optimus.save(predictor, def_file=predictor_file)
driver.fit(stream, hyperparams=hyperparams, **DRIVER_ARGS)
def main(args):
trainer, predictor = models.MODELS[args.model_name]()
time_dim = trainer.inputs['data'].shape[2]
if args.init_param_file:
print "Loading parameters: %s" % args.init_param_file
trainer.load_param_values(args.init_param_file)
print "Opening %s" % args.training_file
stash = biggie.Stash(args.training_file)
stream = D.create_chord_index_stream(stash,
time_dim,
VOCAB,
sample_func=D.slice_chroma_entity,
working_size=25)
stream = S.minibatch(stream, batch_size=BATCH_SIZE)
print "Starting '%s'" % args.trial_name
driver = optimus.Driver(graph=trainer,
name=args.trial_name,
output_directory=args.output_directory)
hyperparams = dict(learning_rate=LEARNING_RATE, dropout=DROPOUT)
predictor_file = path.join(driver.output_directory, args.predictor_file)
optimus.save(predictor, def_file=predictor_file)
driver.fit(stream, hyperparams=hyperparams, **DRIVER_ARGS)
def main(args):
trainer, predictor = models.MODELS[args.model_name]()
time_dim = trainer.inputs['cqt'].shape[2]
if args.init_param_file:
print "Loading parameters: %s" % args.init_param_file
trainer.load_param_values(args.init_param_file)
print "Opening %s" % args.training_file
stash = biggie.Stash(args.training_file, cache=True)
stream = D.create_uniform_chord_stream(
stash,
time_dim,
pitch_shift=0,
vocab_dim=VOCAB,
working_size=5,
)
stream = S.minibatch(stream, batch_size=BATCH_SIZE)
print "Starting '%s'" % args.trial_name
driver = optimus.Driver(graph=trainer,
name=args.trial_name,
output_directory=args.output_directory)
hyperparams = dict(learning_rate=LEARNING_RATE)
predictor_file = path.join(driver.output_directory, args.predictor_file)
optimus.save(predictor, def_file=predictor_file)
driver.fit(stream, hyperparams=hyperparams, **DRIVER_ARGS)
def main(args):
trainer, predictor = models.MODELS[args.model_name]()
time_dim = trainer.inputs['data'].shape[2]
if args.init_param_file:
print "Loading parameters: %s" % args.init_param_file
trainer.load_param_values(args.init_param_file)
print "Opening %s" % args.training_file
stash = biggie.Stash(args.training_file, cache=True)
stream = D.create_chord_index_stream(stash,
time_dim,
max_pitch_shift=0,
lexicon=VOCAB)
# Load prior
stat_file = "%s.json" % path.splitext(args.training_file)[0]
prior = np.array(json.load(open(stat_file))['prior'], dtype=float)
trainer.nodes['prior'].weight.value = 1.0 / prior.reshape(1, -1)
stream = S.minibatch(stream, batch_size=BATCH_SIZE)
print "Starting '%s'" % args.trial_name
driver = optimus.Driver(graph=trainer,
name=args.trial_name,
output_directory=args.output_directory)
hyperparams = dict(learning_rate=LEARNING_RATE, dropout=DROPOUT)
predictor_file = path.join(driver.output_directory, args.predictor_file)
optimus.save(predictor, def_file=predictor_file)
driver.fit(stream, hyperparams=hyperparams, **DRIVER_ARGS)
def build_model():
x_in = optimus.Input(name="x", shape=(None, 2))
class_idx = optimus.Input(name="y", shape=(None, ), dtype='int32')
learning_rate = optimus.Input(name='learning_rate', shape=None)
layer0 = optimus.Affine(name='layer0',
input_shape=x_in.shape,
output_shape=(None, 100),
act_type='relu')
layer1 = optimus.Affine(name='layer1',
input_shape=layer0.output.shape,
output_shape=(None, 100),
act_type='relu')
classifier = optimus.Softmax(name='classifier',
input_shape=layer1.output.shape,
n_out=N_CLASSES,
act_type='linear')
nll = optimus.NegativeLogLikelihood(name="nll")
posterior = optimus.Output(name='posterior')
trainer_edges = optimus.ConnectionManager([
(x_in, layer0.input), (layer0.output, layer1.input),
(layer1.output, classifier.input), (classifier.output, nll.likelihood),
(class_idx, nll.target_idx)
])
update_manager = optimus.ConnectionManager([
(learning_rate, layer0.weights), (learning_rate, layer0.bias),
(learning_rate, layer1.weights), (learning_rate, layer1.bias),
(learning_rate, classifier.weights), (learning_rate, classifier.bias)
])
trainer = optimus.Graph(name='trainer',
inputs=[x_in, class_idx, learning_rate],
nodes=[layer0, layer1, classifier],
connections=trainer_edges.connections,
outputs=[optimus.Graph.TOTAL_LOSS],
losses=[nll],
updates=update_manager.connections)
optimus.random_init(layer0.weights)
optimus.random_init(layer1.weights)
optimus.random_init(classifier.weights)
predictor_edges = optimus.ConnectionManager([
(x_in, layer0.input), (layer0.output, layer1.input),
(layer1.output, classifier.input), (classifier.output, posterior)
])
predictor = optimus.Graph(name='predictor',
inputs=[x_in],
nodes=[layer0, layer1, classifier],
connections=predictor_edges.connections,
outputs=[posterior])
driver = optimus.Driver(graph=trainer, name='test')
return driver, predictor
def fit(trial_name,
output_dir,
model_params,
hyperparams,
train_params,
data_params,
param_file=''):
"""Fit a model given the parameters.
Parameters
----------
...
Returns
-------
artifacts : dict
Contains data resulting from fitting the model.
"""
output_dir = os.path.join(output_dir, trial_name)
utils.safe_makedirs(output_dir)
trainer, predictor = M.create(**model_params)
data_params.update(window_length=model_params['n_in'],
dataset=pd.read_json(data_params.pop('dataset')))
# TODO: Migrate this into the config object... but where?!
source = D.awgn(D.create_stream(**data_params), 0.1, 0.01)
print("Starting '{0}'".format(trial_name))
param_file = os.path.join(output_dir, param_file)
log_file = os.path.join(output_dir, 'train_stats.csv')
driver = optimus.Driver(graph=trainer,
name=trial_name,
output_directory=output_dir,
log_file=log_file)
model_file = os.path.join(output_dir,
"{}-predictor.json".format(trial_name))
optimus.save(predictor, model_file)
driver.fit(source, hyperparams=hyperparams, **train_params)
return dict(log_file=log_file, model_file=model_file)
def main(args):
trainer, predictor = build_model()
if args.init_param_file:
print "Loading parameters: %s" % args.init_param_file
trainer.load_param_values(args.init_param_file)
optimus.random_init(trainer.params['layer3'].weights)
optimus.random_init(trainer.params['layer3'].bias)
# 3. Create Data
print "Loading %s" % args.training_file
stash = biggie.Stash(args.training_file)
stream = D.create_stash_stream(stash,
TIME_DIM,
pitch_shift=0,
vocab_dim=VOCAB,
pool_size=25)
if args.secondary_source:
stash2 = biggie.Stash(args.secondary_source)
stream2 = D.create_uniform_chord_stream(stash2,
TIME_DIM,
pitch_shift=0,
vocab_dim=VOCAB,
working_size=5)
stream = S.mux([stream, stream2], [0.5, 0.5])
stream = S.minibatch(stream, batch_size=BATCH_SIZE)
print "Starting '%s'" % args.trial_name
driver = optimus.Driver(graph=trainer,
name=args.trial_name,
output_directory=args.model_directory)
predictor_file = path.join(driver.output_directory, args.predictor_file)
optimus.save(predictor, def_file=predictor_file)
hyperparams = dict(learning_rate=LEARNING_RATE)
driver.fit(stream, hyperparams=hyperparams, **DRIVER_ARGS)
def main(args):
# 1.1 Create Inputs
input_data = optimus.Input(name='cqt', shape=(None, 1, TIME_DIM, 252))
chord_idx = optimus.Input(name='chord_idx', shape=(None, ), dtype='int32')
is_chord = optimus.Input(name='is_chord', shape=(None, ))
learning_rate = optimus.Input(name='learning_rate', shape=None)
# 1.2 Create Nodes
layer0 = optimus.Conv3D(name='layer0',
input_shape=input_data.shape,
weight_shape=(12, 1, 9, 19),
pool_shape=(1, 3),
act_type='relu')
layer1 = optimus.Conv3D(name='layer1',
input_shape=layer0.output.shape,
weight_shape=(16, None, 7, 15),
act_type='relu')
layer2 = optimus.Conv3D(name='layer2',
input_shape=layer1.output.shape,
weight_shape=(20, None, 6, 15),
act_type='relu')
layer3 = optimus.Affine(name='layer3',
input_shape=layer2.output.shape,
output_shape=(
None,
512,
),
act_type='relu')
chord_estimator = optimus.Affine(name='chord_estimator',
input_shape=layer3.output.shape,
output_shape=(None, VOCAB),
act_type='sigmoid')
all_nodes = [layer0, layer1, layer2, layer3, chord_estimator]
# 1.1 Create Losses
chord_mse = optimus.SparseMeanSquaredError(
# chord_mse = optimus.SparseCrossEntropy(
name="chord_mse")
# 2. Define Edges
trainer_edges = optimus.ConnectionManager([
(input_data, layer0.input), (layer0.output, layer1.input),
(layer1.output, layer2.input), (layer2.output, layer3.input),
(layer3.output, chord_estimator.input),
(chord_estimator.output, chord_mse.prediction),
(chord_idx, chord_mse.index), (is_chord, chord_mse.target)
])
update_manager = optimus.ConnectionManager([
(learning_rate, layer0.weights), (learning_rate, layer0.bias),
(learning_rate, layer1.weights), (learning_rate, layer1.bias),
(learning_rate, layer2.weights), (learning_rate, layer2.bias),
(learning_rate, layer3.weights), (learning_rate, layer3.bias),
(learning_rate, chord_estimator.weights),
(learning_rate, chord_estimator.bias)
])
print "Building trainer"
trainer = optimus.Graph(
name=GRAPH_NAME,
inputs=[input_data, chord_idx, is_chord, learning_rate],
nodes=all_nodes,
connections=trainer_edges.connections,
outputs=[optimus.Graph.TOTAL_LOSS],
losses=[chord_mse],
updates=update_manager.connections)
optimus.random_init(chord_estimator.weights)
print "Building validator"
validator = optimus.Graph(name=GRAPH_NAME,
inputs=[input_data, chord_idx, is_chord],
nodes=all_nodes,
connections=trainer_edges.connections,
outputs=[optimus.Graph.TOTAL_LOSS],
losses=[chord_mse])
posterior = optimus.Output(name='posterior')
predictor_edges = optimus.ConnectionManager([
(input_data, layer0.input), (layer0.output, layer1.input),
(layer1.output, layer2.input), (layer2.output, layer3.input),
(layer3.output, chord_estimator.input),
(chord_estimator.output, posterior)
])
print "Building predictor"
predictor = optimus.Graph(name=GRAPH_NAME,
inputs=[input_data],
nodes=all_nodes,
connections=predictor_edges.connections,
outputs=[posterior])
# 3. Create Data
print "Opening Data"
stash = biggie.Stash(args.training_file)
stream = S.minibatch(D.create_contrastive_quality_stream(stash,
TIME_DIM,
vocab_dim=VOCAB),
batch_size=50)
driver = optimus.Driver(graph=trainer,
name=args.trial_name,
output_directory=args.model_directory)
hyperparams = {learning_rate.name: LEARNING_RATE}
print "...aaand we're off!"
driver.fit(stream, hyperparams=hyperparams, **DRIVER_ARGS)
validator_file = path.join(driver.output_directory, args.validator_file)
optimus.save(validator, def_file=validator_file)
predictor_file = path.join(driver.output_directory, args.predictor_file)
optimus.save(predictor, def_file=predictor_file)
def main(args):
# 1.1 Create Inputs
input_data = optimus.Input(
name='cqt',
shape=(None, 1, TIME_DIM, 252))
chord_idx = optimus.Input(
name='chord_idx',
shape=(None,),
dtype='int32')
learning_rate = optimus.Input(
name='learning_rate',
shape=None)
# 1.2 Create Nodes
layer0 = optimus.Conv3D(
name='layer0',
input_shape=input_data.shape,
weight_shape=(12, 1, 9, 19),
pool_shape=(1, 3),
act_type='relu')
layer1 = optimus.Conv3D(
name='layer1',
input_shape=layer0.output.shape,
weight_shape=(16, None, 7, 15),
act_type='relu')
layer2 = optimus.Conv3D(
name='layer2',
input_shape=layer1.output.shape,
weight_shape=(20, None, 6, 15),
act_type='relu')
layer3 = optimus.Affine(
name='layer3',
input_shape=layer2.output.shape,
output_shape=(None, 512,),
act_type='relu')
chord_classifier = optimus.Softmax(
name='chord_classifier',
input_shape=layer3.output.shape,
n_out=VOCAB,
act_type='linear')
all_nodes = [layer0, layer1, layer2, layer3, chord_classifier]
# 1.1 Create Losses
chord_nll = optimus.NegativeLogLikelihood(
name="chord_nll")
# 2. Define Edges
trainer_edges = optimus.ConnectionManager([
(input_data, layer0.input),
(layer0.output, layer1.input),
(layer1.output, layer2.input),
(layer2.output, layer3.input),
(layer3.output, chord_classifier.input),
(chord_classifier.output, chord_nll.likelihood),
(chord_idx, chord_nll.target_idx)])
update_manager = optimus.ConnectionManager([
(learning_rate, layer0.weights),
(learning_rate, layer0.bias),
(learning_rate, layer1.weights),
(learning_rate, layer1.bias),
(learning_rate, layer2.weights),
(learning_rate, layer2.bias),
(learning_rate, layer3.weights),
(learning_rate, layer3.bias),
(learning_rate, chord_classifier.weights),
(learning_rate, chord_classifier.bias)])
print "Building trainer"
trainer = optimus.Graph(
name=GRAPH_NAME,
inputs=[input_data, chord_idx, learning_rate],
nodes=all_nodes,
connections=trainer_edges.connections,
outputs=[optimus.Graph.TOTAL_LOSS],
losses=[chord_nll],
updates=update_manager.connections)
optimus.random_init(chord_classifier.weights)
print "Building validator"
validator = optimus.Graph(
name=GRAPH_NAME,
inputs=[input_data, chord_idx],
nodes=all_nodes,
connections=trainer_edges.connections,
outputs=[optimus.Graph.TOTAL_LOSS],
losses=[chord_nll])
posterior = optimus.Output(
name='posterior')
predictor_edges = optimus.ConnectionManager([
(input_data, layer0.input),
(layer0.output, layer1.input),
(layer1.output, layer2.input),
(layer2.output, layer3.input),
(layer3.output, chord_classifier.input),
(chord_classifier.output, posterior)])
print "Building predictor"
predictor = optimus.Graph(
name=GRAPH_NAME,
inputs=[input_data],
nodes=all_nodes,
connections=predictor_edges.connections,
outputs=[posterior])
# 3. Create Data
print "Opening Data"
stash = biggie.Stash(args.training_file)
stream = S.minibatch(
D.create_uniform_quality_stream(stash, TIME_DIM),
batch_size=50,
functions=[FX.pitch_shift(), FX.map_to_chord_index(VOCAB)])
driver = optimus.Driver(
graph=trainer,
name=args.trial_name,
output_directory=args.model_directory)
hyperparams = {learning_rate.name: LEARNING_RATE}
print "...aaand we're off!"
driver.fit(stream, hyperparams=hyperparams, **DRIVER_ARGS)
validator_file = path.join(driver.output_directory, args.validator_file)
optimus.save(validator, def_file=validator_file)
predictor_file = path.join(driver.output_directory, args.predictor_file)
optimus.save(predictor, def_file=predictor_file)
def main(args):
# 1.1 Create Inputs
input_data = optimus.Input(
name='cqt',
shape=(None, 1, TIME_DIM, PITCH_DIM))
target = optimus.Input(
name='target',
shape=(None, VOCAB))
learning_rate = optimus.Input(
name='learning_rate',
shape=None)
# 1.2 Create Nodes
layer0 = optimus.Conv3D(
name='layer0',
input_shape=input_data.shape,
weight_shape=(32, 1, 5, 19),
pool_shape=(2, 3),
act_type='relu')
layer1 = optimus.Conv3D(
name='layer1',
input_shape=layer0.output.shape,
weight_shape=(64, None, 5, 15),
act_type='relu')
layer2 = optimus.Conv3D(
name='layer2',
input_shape=layer1.output.shape,
weight_shape=(128, None, 3, 15),
act_type='relu')
layer3 = optimus.Affine(
name='layer3',
input_shape=layer2.output.shape,
output_shape=(None, 1024,),
act_type='relu')
chord_classifier = optimus.Affine(
name='chord_classifier',
input_shape=layer3.output.shape,
output_shape=(None, 6,),
act_type='sigmoid')
all_nodes = [layer0, layer1, layer2, layer3, chord_classifier]
# 1.1 Create Losses
chord_mse = optimus.MeanSquaredError(
name="chord_mse")
# 2. Define Edges
trainer_edges = optimus.ConnectionManager([
(input_data, layer0.input),
(layer0.output, layer1.input),
(layer1.output, layer2.input),
(layer2.output, layer3.input),
(layer3.output, chord_classifier.input),
(chord_classifier.output, chord_mse.prediction),
(target, chord_mse.target)])
update_manager = optimus.ConnectionManager([
# (learning_rate, layer0.weights),
# (learning_rate, layer0.bias),
# (learning_rate, layer1.weights),
# (learning_rate, layer1.bias),
# (learning_rate, layer2.weights),
# (learning_rate, layer2.bias),
(learning_rate, layer3.weights),
(learning_rate, layer3.bias),
(learning_rate, chord_classifier.weights),
(learning_rate, chord_classifier.bias)])
trainer = optimus.Graph(
name=GRAPH_NAME,
inputs=[input_data, target, learning_rate],
nodes=all_nodes,
connections=trainer_edges.connections,
outputs=[optimus.Graph.TOTAL_LOSS],
losses=[chord_mse],
updates=update_manager.connections)
for n in all_nodes:
optimus.random_init(n.weights, 0, 0.01)
optimus.random_init(n.bias, 0, 0.01)
if args.init_param_file:
param_values = dict(np.load(args.init_param_file))
keys = param_values.keys()
for key in keys:
if chord_classifier.name in key or layer3.name in key:
print "skipping %s" % key
del param_values[key]
trainer.param_values = param_values
posterior = optimus.Output(
name='posterior')
predictor_edges = optimus.ConnectionManager([
(input_data, layer0.input),
(layer0.output, layer1.input),
(layer1.output, layer2.input),
(layer2.output, layer3.input),
(layer3.output, chord_classifier.input),
(chord_classifier.output, posterior)])
predictor = optimus.Graph(
name=GRAPH_NAME,
inputs=[input_data],
nodes=all_nodes,
connections=predictor_edges.connections,
outputs=[posterior])
# 3. Create Data
print "Loading %s" % args.training_file
stash = biggie.Stash(args.training_file)
stream = D.create_uniform_chord_stream(
stash, TIME_DIM, pitch_shift=0, vocab_dim=VOCAB, working_size=10)
stream = S.minibatch(
FX.chord_index_to_tonnetz(stream, vocab_dim=VOCAB),
batch_size=BATCH_SIZE)
print "Starting '%s'" % args.trial_name
driver = optimus.Driver(
graph=trainer,
name=args.trial_name,
output_directory=args.model_directory)
hyperparams = {learning_rate.name: LEARNING_RATE}
predictor_file = path.join(driver.output_directory, args.predictor_file)
optimus.save(predictor, def_file=predictor_file)
driver.fit(stream, hyperparams=hyperparams, **DRIVER_ARGS)
def main(args):
# 1.1 Create Inputs
input_data = optimus.Input(name='cqt', shape=(None, 1, TIME_DIM, 252))
chord_idx = optimus.Input(name='chord_idx', shape=(None, ), dtype='int32')
learning_rate = optimus.Input(name='learning_rate', shape=None)
margin = optimus.Input(name='margin', shape=None)
margin_weight = optimus.Input(name='margin_weight', shape=None)
nll_weight = optimus.Input(name='nll_weight', shape=None)
# 1.2 Create Nodes
layer0 = optimus.Conv3D(name='layer0',
input_shape=input_data.shape,
weight_shape=(12, 1, 9, 19),
pool_shape=(1, 3),
act_type='relu')
layer1 = optimus.Conv3D(name='layer1',
input_shape=layer0.output.shape,
weight_shape=(16, None, 7, 15),
act_type='relu')
layer2 = optimus.Conv3D(name='layer2',
input_shape=layer1.output.shape,
weight_shape=(20, None, 6, 15),
act_type='relu')
layer3 = optimus.Affine(name='layer3',
input_shape=layer2.output.shape,
output_shape=(None, 512),
act_type='relu')
chord_classifier = optimus.Affine(name='chord_classifier',
input_shape=layer3.output.shape,
output_shape=(None, VOCAB),
act_type='sigmoid')
all_nodes = [layer0, layer1, layer2, layer3, chord_classifier]
# 1.1 Create Losses
nll = optimus.NegativeLogLikelihood(name="nll", weighted=True)
likelihood_margin = optimus.LikelihoodMargin(name="likelihood_margin",
mode='l1',
weighted=True)
# likelihood_margin = optimus.NLLMargin(
# name="likelihood_margin",
# mode='l2',
# weighted=True)
# 2. Define Edges
trainer_edges = optimus.ConnectionManager([
(input_data, layer0.input), (layer0.output, layer1.input),
(layer1.output, layer2.input), (layer2.output, layer3.input),
(layer3.output, chord_classifier.input),
(chord_classifier.output, likelihood_margin.likelihood),
(chord_idx, likelihood_margin.target_idx),
(margin, likelihood_margin.margin),
(margin_weight, likelihood_margin.weight),
(chord_classifier.output, nll.likelihood), (chord_idx, nll.target_idx),
(nll_weight, nll.weight)
])
update_manager = optimus.ConnectionManager([
(learning_rate, layer0.weights), (learning_rate, layer0.bias),
(learning_rate, layer1.weights), (learning_rate, layer1.bias),
(learning_rate, layer2.weights), (learning_rate, layer2.bias),
(learning_rate, layer3.weights), (learning_rate, layer3.bias),
(learning_rate, chord_classifier.weights),
(learning_rate, chord_classifier.bias)
])
trainer = optimus.Graph(name=GRAPH_NAME,
inputs=[
input_data, chord_idx, margin, learning_rate,
margin_weight, nll_weight
],
nodes=all_nodes,
connections=trainer_edges.connections,
outputs=[optimus.Graph.TOTAL_LOSS],
losses=[nll, likelihood_margin],
updates=update_manager.connections)
optimus.random_init(chord_classifier.weights)
optimus.random_init(chord_classifier.bias)
validator = optimus.Graph(
name=GRAPH_NAME,
inputs=[input_data, chord_idx, margin, margin_weight, nll_weight],
nodes=all_nodes,
connections=trainer_edges.connections,
outputs=[optimus.Graph.TOTAL_LOSS],
losses=[nll, likelihood_margin])
posterior = optimus.Output(name='posterior')
predictor_edges = optimus.ConnectionManager([
(input_data, layer0.input), (layer0.output, layer1.input),
(layer1.output, layer2.input), (layer2.output, layer3.input),
(layer3.output, chord_classifier.input),
(chord_classifier.output, posterior)
])
predictor = optimus.Graph(name=GRAPH_NAME,
inputs=[input_data],
nodes=all_nodes,
connections=predictor_edges.connections,
outputs=[posterior])
# 3. Create Data
stash = biggie.Stash(args.training_file)
stream = S.minibatch(D.create_uniform_quality_stream(stash,
TIME_DIM,
vocab_dim=VOCAB),
batch_size=50)
driver = optimus.Driver(graph=trainer,
name=args.trial_name,
output_directory=args.model_directory)
hyperparams = {
learning_rate.name: LEARNING_RATE,
margin_weight.name: MARGIN_WEIGHT,
nll_weight.name: NLL_WEIGHT,
margin.name: MARGIN
}
driver.fit(stream, hyperparams=hyperparams, **DRIVER_ARGS)
validator_file = path.join(driver.output_directory, args.validator_file)
optimus.save(validator, def_file=validator_file)
predictor_file = path.join(driver.output_directory, args.predictor_file)
optimus.save(predictor, def_file=predictor_file)
def main(args):
# 1.1 Create Inputs
input_data = optimus.Input(name='cqt', shape=(None, 6, TIME_DIM, 40))
target = optimus.Input(name='target', shape=(None, VOCAB))
learning_rate = optimus.Input(name='learning_rate', shape=None)
# 1.2 Create Nodes
layer0 = optimus.Conv3D(name='layer0',
input_shape=input_data.shape,
weight_shape=(32, None, 5, 5),
pool_shape=(2, 3),
act_type='relu')
layer1 = optimus.Conv3D(name='layer1',
input_shape=layer0.output.shape,
weight_shape=(64, None, 5, 7),
act_type='relu')
layer2 = optimus.Conv3D(name='layer2',
input_shape=layer1.output.shape,
weight_shape=(128, None, 3, 6),
act_type='relu')
layer3 = optimus.Affine(name='layer3',
input_shape=layer2.output.shape,
output_shape=(
None,
1024,
),
act_type='relu')
chord_estimator = optimus.Affine(name='chord_estimator',
input_shape=layer3.output.shape,
output_shape=(
None,
VOCAB,
),
act_type='sigmoid')
all_nodes = [layer0, layer1, layer2, layer3, chord_estimator]
# 1.1 Create Losses
chord_xentropy = optimus.CrossEntropy(name="chord_xentropy")
# 2. Define Edges
trainer_edges = optimus.ConnectionManager([
(input_data, layer0.input), (layer0.output, layer1.input),
(layer1.output, layer2.input), (layer2.output, layer3.input),
(layer3.output, chord_estimator.input),
(chord_estimator.output, chord_xentropy.prediction),
(target, chord_xentropy.target)
])
update_manager = optimus.ConnectionManager([
(learning_rate, layer0.weights), (learning_rate, layer0.bias),
(learning_rate, layer1.weights), (learning_rate, layer1.bias),
(learning_rate, layer2.weights), (learning_rate, layer2.bias),
(learning_rate, layer3.weights), (learning_rate, layer3.bias),
(learning_rate, chord_estimator.weights),
(learning_rate, chord_estimator.bias)
])
trainer = optimus.Graph(name=GRAPH_NAME,
inputs=[input_data, target, learning_rate],
nodes=all_nodes,
connections=trainer_edges.connections,
outputs=[optimus.Graph.TOTAL_LOSS],
losses=[chord_xentropy],
updates=update_manager.connections,
momentum=None)
for n in all_nodes:
optimus.random_init(n.weights, 0, 0.01)
optimus.random_init(n.bias, 0, 0.01)
validator = optimus.Graph(name=GRAPH_NAME,
inputs=[input_data, target],
nodes=all_nodes,
connections=trainer_edges.connections,
outputs=[optimus.Graph.TOTAL_LOSS],
losses=[chord_xentropy])
posterior = optimus.Output(name='posterior')
predictor_edges = optimus.ConnectionManager([
(input_data, layer0.input), (layer0.output, layer1.input),
(layer1.output, layer2.input), (layer2.output, layer3.input),
(layer3.output, chord_estimator.input),
(chord_estimator.output, posterior)
])
predictor = optimus.Graph(name=GRAPH_NAME,
inputs=[input_data],
nodes=all_nodes,
connections=predictor_edges.connections,
outputs=[posterior])
# 3. Create Data
print "Loading %s" % args.training_file
stash = biggie.Stash(args.training_file)
# partition_labels = json.load(
# open("/home/ejhumphrey/Dropbox/tmp/train0_v2_merged_partition.json"))
stream = D.create_uniform_chord_stream(stash,
TIME_DIM,
pitch_shift=False,
vocab_dim=VOCAB,
working_size=5)
stream = S.minibatch(FX.chord_index_to_affinity_vectors(
FX.wrap_cqt(stream, length=40, stride=36), VOCAB),
batch_size=BATCH_SIZE)
print "Starting '%s'" % args.trial_name
driver = optimus.Driver(graph=trainer,
name=args.trial_name,
output_directory=args.model_directory)
hyperparams = {learning_rate.name: LEARNING_RATE}
validator_file = path.join(driver.output_directory, args.validator_file)
optimus.save(validator, def_file=validator_file)
predictor_file = path.join(driver.output_directory, args.predictor_file)
optimus.save(predictor, def_file=predictor_file)
driver.fit(stream, hyperparams=hyperparams, **DRIVER_ARGS)
def main(args):
# 1.1 Create Inputs
input_data = optimus.Input(name='cqt', shape=(None, 1, TIME_DIM, 252))
chord_idx = optimus.Input(name='chord_idx', shape=(None, ), dtype='int32')
learning_rate = optimus.Input(name='learning_rate', shape=None)
# 1.2 Create Nodes
layer0 = optimus.Conv3D(name='layer0',
input_shape=input_data.shape,
weight_shape=(12, 1, 5, 19),
pool_shape=(1, 3),
act_type='relu')
layer1 = optimus.Conv3D(name='layer1',
input_shape=layer0.output.shape,
weight_shape=(16, None, 5, 15),
act_type='relu')
layer2 = optimus.Conv3D(name='layer2',
input_shape=layer1.output.shape,
weight_shape=(20, None, 2, 15),
act_type='relu')
layer3 = optimus.Affine(name='layer3',
input_shape=layer2.output.shape,
output_shape=(
None,
512,
),
act_type='relu')
chord_classifier = optimus.Softmax(name='chord_classifier',
input_shape=layer3.output.shape,
n_out=VOCAB,
act_type='linear')
all_nodes = [layer0, layer1, layer2, layer3, chord_classifier]
# 1.1 Create Losses
chord_nll = optimus.NegativeLogLikelihood(name="chord_nll")
# 2. Define Edges
trainer_edges = optimus.ConnectionManager([
(input_data, layer0.input), (layer0.output, layer1.input),
(layer1.output, layer2.input), (layer2.output, layer3.input),
(layer3.output, chord_classifier.input),
(chord_classifier.output, chord_nll.likelihood),
(chord_idx, chord_nll.target_idx)
])
update_manager = optimus.ConnectionManager([
(learning_rate, layer0.weights), (learning_rate, layer0.bias),
(learning_rate, layer1.weights), (learning_rate, layer1.bias),
(learning_rate, layer2.weights), (learning_rate, layer2.bias),
(learning_rate, layer3.weights), (learning_rate, layer3.bias),
(learning_rate, chord_classifier.weights),
(learning_rate, chord_classifier.bias)
])
trainer = optimus.Graph(name=GRAPH_NAME,
inputs=[input_data, chord_idx, learning_rate],
nodes=all_nodes,
connections=trainer_edges.connections,
outputs=[optimus.Graph.TOTAL_LOSS],
losses=[chord_nll],
updates=update_manager.connections)
optimus.random_init(chord_classifier.weights)
validator = optimus.Graph(name=GRAPH_NAME,
inputs=[input_data, chord_idx],
nodes=all_nodes,
connections=trainer_edges.connections,
outputs=[optimus.Graph.TOTAL_LOSS],
losses=[chord_nll])
posterior = optimus.Output(name='posterior')
predictor_edges = optimus.ConnectionManager([
(input_data, layer0.input), (layer0.output, layer1.input),
(layer1.output, layer2.input), (layer2.output, layer3.input),
(layer3.output, chord_classifier.input),
(chord_classifier.output, posterior)
])
predictor = optimus.Graph(name=GRAPH_NAME,
inputs=[input_data],
nodes=all_nodes,
connections=predictor_edges.connections,
outputs=[posterior])
# 3. Create Data
source = optimus.Queue(optimus.File(args.training_file),
transformers=[
T.chord_sample(input_data.shape[2]),
T.pitch_shift(8),
T.map_to_index(VOCAB)
],
**SOURCE_ARGS)
driver = optimus.Driver(graph=trainer,
name=args.trial_name,
output_directory=args.model_directory)
hyperparams = {learning_rate.name: LEARNING_RATE}
driver.fit(source, hyperparams=hyperparams, **DRIVER_ARGS)
validator_file = path.join(driver.output_directory, args.validator_file)
optimus.save(validator, def_file=validator_file)
predictor_file = path.join(driver.output_directory, args.predictor_file)
optimus.save(predictor, def_file=predictor_file)
def main(args):
# 1.1 Create Inputs
input_data = optimus.Input(name='cqt', shape=(None, 1, TIME_DIM, 252))
chord_idx = optimus.Input(name='chord_idx', shape=(None, ), dtype='int32')
learning_rate = optimus.Input(name='learning_rate', shape=None)
dropout = optimus.Input(name='dropout', shape=None)
# 1.2 Create Nodes
layer0 = optimus.Conv3D(name='layer0',
input_shape=input_data.shape,
weight_shape=(30, 1, 9, 19),
pool_shape=(1, 3),
act_type='relu')
layer1 = optimus.Conv3D(name='layer1',
input_shape=layer0.output.shape,
weight_shape=(50, None, 7, 15),
act_type='relu')
layer2 = optimus.Affine(name='layer2',
input_shape=layer1.output.shape,
output_shape=(
None,
1024,
),
act_type='relu')
layer3 = optimus.Affine(name='layer3',
input_shape=layer2.output.shape,
output_shape=(
None,
1024,
),
act_type='relu')
for n in [layer2, layer3]:
n.enable_dropout()
chord_classifier = optimus.Softmax(name='chord_classifier',
input_shape=layer3.output.shape,
n_out=VOCAB,
act_type='linear')
all_nodes = [layer0, layer1, layer2, layer3, chord_classifier]
# 1.1 Create Losses
chord_nll = optimus.NegativeLogLikelihood(name="chord_nll")
# 2. Define Edges
trainer_edges = optimus.ConnectionManager([
(input_data, layer0.input), (layer0.output, layer1.input),
(layer1.output, layer2.input), (layer2.output, layer3.input),
(layer3.output, chord_classifier.input),
(chord_classifier.output, chord_nll.likelihood),
(chord_idx, chord_nll.target_idx), (dropout, layer2.dropout),
(dropout, layer3.dropout)
])
update_manager = optimus.ConnectionManager([
(learning_rate, layer0.weights), (learning_rate, layer0.bias),
(learning_rate, layer1.weights), (learning_rate, layer1.bias),
(learning_rate, layer2.weights), (learning_rate, layer2.bias),
(learning_rate, layer3.weights), (learning_rate, layer3.bias),
(learning_rate, chord_classifier.weights),
(learning_rate, chord_classifier.bias)
])
trainer = optimus.Graph(
name=GRAPH_NAME,
inputs=[input_data, chord_idx, learning_rate, dropout],
nodes=all_nodes,
connections=trainer_edges.connections,
outputs=[optimus.Graph.TOTAL_LOSS],
losses=[chord_nll],
updates=update_manager.connections)
for n in all_nodes:
optimus.random_init(n.weights)
optimus.random_init(n.bias)
validator_edges = optimus.ConnectionManager([
(input_data, layer0.input), (layer0.output, layer1.input),
(layer1.output, layer2.input), (layer2.output, layer3.input),
(layer3.output, chord_classifier.input),
(chord_classifier.output, chord_nll.likelihood),
(chord_idx, chord_nll.target_idx)
])
for n in [layer2, layer3]:
n.disable_dropout()
validator = optimus.Graph(name=GRAPH_NAME,
inputs=[input_data, chord_idx],
nodes=all_nodes,
connections=validator_edges.connections,
outputs=[optimus.Graph.TOTAL_LOSS],
losses=[chord_nll])
posterior = optimus.Output(name='posterior')
predictor_edges = optimus.ConnectionManager([
(input_data, layer0.input), (layer0.output, layer1.input),
(layer1.output, layer2.input), (layer2.output, layer3.input),
(layer3.output, chord_classifier.input),
(chord_classifier.output, posterior)
])
predictor = optimus.Graph(name=GRAPH_NAME,
inputs=[input_data],
nodes=all_nodes,
connections=predictor_edges.connections,
outputs=[posterior])
# 3. Create Data
print "Loading %s" % args.training_file
stash = biggie.Stash(args.training_file)
s = D.create_uniform_chord_stream(stash,
TIME_DIM,
pitch_shift=6,
vocab_dim=VOCAB,
working_size=10)
stream = S.minibatch(FX.drop_frames(FX.awgn(s, 0.05), 0.1),
batch_size=BATCH_SIZE)
driver = optimus.Driver(graph=trainer,
name=args.trial_name,
output_directory=args.model_directory)
hyperparams = {learning_rate.name: LEARNING_RATE, dropout.name: DROPOUT}
validator_file = path.join(driver.output_directory, args.validator_file)
optimus.save(validator, def_file=validator_file)
predictor_file = path.join(driver.output_directory, args.predictor_file)
optimus.save(predictor, def_file=predictor_file)
print "Starting '%s'" % args.trial_name
driver.fit(stream, hyperparams=hyperparams, **DRIVER_ARGS)
def main(args):
# 1.1 Create Inputs
input_data = optimus.Input(name='cqt', shape=(None, 1, TIME_DIM, 252))
chord_idx = optimus.Input(name='chord_idx', shape=(None, ), dtype='int32')
learning_rate = optimus.Input(name='learning_rate', shape=None)
# 1.2 Create Nodes
layer0 = optimus.Conv3D(name='layer0',
input_shape=input_data.shape,
weight_shape=(30, 1, 9, 19),
pool_shape=(1, 3),
act_type='relu')
layer1 = optimus.Conv3D(name='layer1',
input_shape=layer0.output.shape,
weight_shape=(50, None, 7, 15),
act_type='relu')
layer2 = optimus.Affine(name='layer2',
input_shape=layer1.output.shape,
output_shape=(
None,
1024,
),
act_type='relu')
layer3 = optimus.Affine(name='layer3',
input_shape=layer2.output.shape,
output_shape=(
None,
1024,
),
act_type='relu')
chord_classifier = optimus.Softmax(name='chord_classifier',
input_shape=layer3.output.shape,
n_out=VOCAB,
act_type='linear')
all_nodes = [layer0, layer1, layer2, layer3, chord_classifier]
# 1.1 Create Losses
chord_nll = optimus.NegativeLogLikelihood(name="chord_nll")
# 2. Define Edges
trainer_edges = optimus.ConnectionManager([
(input_data, layer0.input), (layer0.output, layer1.input),
(layer1.output, layer2.input), (layer2.output, layer3.input),
(layer3.output, chord_classifier.input),
(chord_classifier.output, chord_nll.likelihood),
(chord_idx, chord_nll.target_idx)
])
update_manager = optimus.ConnectionManager([
(learning_rate, layer0.weights), (learning_rate, layer0.bias),
(learning_rate, layer1.weights), (learning_rate, layer1.bias),
(learning_rate, layer2.weights), (learning_rate, layer2.bias),
(learning_rate, layer3.weights), (learning_rate, layer3.bias),
(learning_rate, chord_classifier.weights),
(learning_rate, chord_classifier.bias)
])
trainer = optimus.Graph(name=GRAPH_NAME,
inputs=[input_data, chord_idx, learning_rate],
nodes=all_nodes,
connections=trainer_edges.connections,
outputs=[optimus.Graph.TOTAL_LOSS],
losses=[chord_nll],
updates=update_manager.connections,
momentum=None)
for n in all_nodes:
optimus.random_init(n.weights)
optimus.random_init(n.bias)
trainer.load_param_values(
"/media/attic/dl4mir/chord_estimation/models/nll_chord_uniform_2big/synth_data_01/0/classifier-V157-synth_data_01-041750-2014-08-25_21h59m56s.npz"
)
validator = optimus.Graph(name=GRAPH_NAME,
inputs=[input_data, chord_idx],
nodes=all_nodes,
connections=trainer_edges.connections,
outputs=[optimus.Graph.TOTAL_LOSS],
losses=[chord_nll])
posterior = optimus.Output(name='posterior')
predictor_edges = optimus.ConnectionManager([
(input_data, layer0.input), (layer0.output, layer1.input),
(layer1.output, layer2.input), (layer2.output, layer3.input),
(layer3.output, chord_classifier.input),
(chord_classifier.output, posterior)
])
predictor = optimus.Graph(name=GRAPH_NAME,
inputs=[input_data],
nodes=all_nodes,
connections=predictor_edges.connections,
outputs=[posterior])
# 3. Create Data
print "Loading %s" % args.training_file
stash = biggie.Stash(args.training_file)
stream = D.create_uniform_chord_stream(stash,
TIME_DIM,
pitch_shift=False,
vocab_dim=VOCAB,
working_size=3)
stream = S.minibatch(stream, batch_size=BATCH_SIZE)
print "Starting '%s'" % args.trial_name
driver = optimus.Driver(graph=trainer,
name=args.trial_name,
output_directory=args.model_directory)
hyperparams = {learning_rate.name: LEARNING_RATE}
validator_file = path.join(driver.output_directory, args.validator_file)
optimus.save(validator, def_file=validator_file)
predictor_file = path.join(driver.output_directory, args.predictor_file)
optimus.save(predictor, def_file=predictor_file)
driver.fit(stream, hyperparams=hyperparams, **DRIVER_ARGS)
def main(args):
# 1.1 Create Inputs
input_data = optimus.Input(
name='cqt',
shape=(None, 1, TIME_DIM, 252))
target_chroma = optimus.Input(
name='target_chroma',
shape=(None, 12),)
learning_rate = optimus.Input(
name='learning_rate',
shape=None)
# 1.2 Create Nodes
layer0 = optimus.Conv3D(
name='layer0',
input_shape=input_data.shape,
weight_shape=(12, 1, 9, 19),
pool_shape=(1, 3),
act_type='relu')
layer1 = optimus.Conv3D(
name='layer1',
input_shape=layer0.output.shape,
weight_shape=(16, None, 7, 15),
act_type='relu')
layer2 = optimus.Conv3D(
name='layer2',
input_shape=layer1.output.shape,
weight_shape=(20, None, 6, 15),
act_type='relu')
layer3 = optimus.Affine(
name='layer3',
input_shape=layer2.output.shape,
output_shape=(None, 512,),
act_type='relu')
layer4 = optimus.Affine(
name='layer4',
input_shape=layer3.output.shape,
output_shape=(None, 12,),
act_type='sigmoid')
all_nodes = [layer0, layer1, layer2, layer3, layer4]
# 1.1 Create Losses
chroma_xentropy = optimus.CrossEntropy(
name="chroma_xentropy")
# 2. Define Edges
trainer_edges = optimus.ConnectionManager([
(input_data, layer0.input),
(layer0.output, layer1.input),
(layer1.output, layer2.input),
(layer2.output, layer3.input),
(layer3.output, layer4.input),
(layer4.output, chroma_xentropy.prediction),
(target_chroma, chroma_xentropy.target)])
update_manager = optimus.ConnectionManager([
(learning_rate, layer0.weights),
(learning_rate, layer0.bias),
(learning_rate, layer1.weights),
(learning_rate, layer1.bias),
(learning_rate, layer2.weights),
(learning_rate, layer2.bias),
(learning_rate, layer3.weights),
(learning_rate, layer3.bias),
(learning_rate, layer4.weights),
(learning_rate, layer4.bias)])
trainer = optimus.Graph(
name=GRAPH_NAME,
inputs=[input_data, target_chroma, learning_rate],
nodes=all_nodes,
connections=trainer_edges.connections,
outputs=[optimus.Graph.TOTAL_LOSS],
losses=[chroma_xentropy],
updates=update_manager.connections)
optimus.random_init(layer0.weights)
optimus.random_init(layer1.weights)
optimus.random_init(layer2.weights)
optimus.random_init(layer3.weights)
optimus.random_init(layer4.weights)
validator = optimus.Graph(
name=GRAPH_NAME,
inputs=[input_data, target_chroma],
nodes=all_nodes,
connections=trainer_edges.connections,
outputs=[optimus.Graph.TOTAL_LOSS],
losses=[chroma_xentropy])
chroma_out = optimus.Output(
name='chroma')
predictor_edges = optimus.ConnectionManager([
(input_data, layer0.input),
(layer0.output, layer1.input),
(layer1.output, layer2.input),
(layer2.output, layer3.input),
(layer3.output, layer4.input),
(layer4.output, chroma_out)])
predictor = optimus.Graph(
name=GRAPH_NAME,
inputs=[input_data],
nodes=all_nodes,
connections=predictor_edges.connections,
outputs=[chroma_out])
# 3. Create Data
stash = biggie.Stash(args.training_file)
stream = S.minibatch(
D.uniform_quality_chroma_stream(stash, TIME_DIM),
batch_size=50)
driver = optimus.Driver(
graph=trainer,
name=args.trial_name,
output_directory=args.model_directory)
hyperparams = {learning_rate.name: LEARNING_RATE}
driver.fit(stream, hyperparams=hyperparams, **DRIVER_ARGS)
validator_file = path.join(driver.output_directory, args.validator_file)
optimus.save(validator, def_file=validator_file)
predictor_file = path.join(driver.output_directory, args.predictor_file)
optimus.save(predictor, def_file=predictor_file)
def main(args):
# 1.1 Create Inputs
input_data = optimus.Input(
name='cqt',
shape=(None, 1, TIME_DIM, 252))
chord_idx = optimus.Input(
name='chord_idx',
shape=(None,),
dtype='int32')
learning_rate = optimus.Input(
name='learning_rate',
shape=None)
limiter_weight = optimus.Input(
name='limiter_weight',
shape=None)
likelihood_threshold = optimus.Input(
name='likelihood_threshold',
shape=None)
# 1.2 Create Nodes
layer0 = optimus.Conv3D(
name='layer0',
input_shape=input_data.shape,
weight_shape=(12, 1, 9, 19),
pool_shape=(1, 3),
act_type='relu')
layer1 = optimus.Conv3D(
name='layer1',
input_shape=layer0.output.shape,
weight_shape=(16, None, 7, 15),
act_type='relu')
layer2 = optimus.Conv3D(
name='layer2',
input_shape=layer1.output.shape,
weight_shape=(20, None, 6, 15),
act_type='relu')
layer3 = optimus.Affine(
name='layer3',
input_shape=layer2.output.shape,
output_shape=(None, 512,),
act_type='relu')
chord_classifier = optimus.Softmax(
name='chord_classifier',
input_shape=layer3.output.shape,
n_out=VOCAB,
act_type='linear')
all_nodes = [layer0, layer1, layer2, layer3, chord_classifier]
# 1.1 Create Losses
chord_nll = optimus.NegativeLogLikelihood(
name="chord_nll")
max_likelihood = optimus.Max(
name="max_likelihood")
# 2. Define Edges
trainer_edges = optimus.ConnectionManager([
(input_data, layer0.input),
(layer0.output, layer1.input),
(layer1.output, layer2.input),
(layer2.output, layer3.input),
(layer3.output, chord_classifier.input),
(chord_classifier.output, chord_nll.likelihood),
(chord_idx, chord_nll.target_idx),
(chord_classifier.output, max_likelihood.input),
(limiter_weight, max_likelihood.weight),
(likelihood_threshold, max_likelihood.threshold)])
update_manager = optimus.ConnectionManager([
(learning_rate, layer0.weights),
(learning_rate, layer0.bias),
(learning_rate, layer1.weights),
(learning_rate, layer1.bias),
(learning_rate, layer2.weights),
(learning_rate, layer2.bias),
(learning_rate, layer3.weights),
(learning_rate, layer3.bias),
(learning_rate, chord_classifier.weights),
(learning_rate, chord_classifier.bias)])
print "Trainer"
trainer = optimus.Graph(
name=GRAPH_NAME,
inputs=[input_data, chord_idx, learning_rate,
limiter_weight, likelihood_threshold],
nodes=all_nodes,
connections=trainer_edges.connections,
outputs=[optimus.Graph.TOTAL_LOSS],
losses=[chord_nll, max_likelihood],
updates=update_manager.connections)
optimus.random_init(chord_classifier.weights)
print "Validator"
validator = optimus.Graph(
name=GRAPH_NAME,
inputs=[input_data, chord_idx, limiter_weight, likelihood_threshold],
nodes=all_nodes,
connections=trainer_edges.connections,
outputs=[optimus.Graph.TOTAL_LOSS],
losses=[chord_nll, max_likelihood])
posterior = optimus.Output(
name='posterior')
predictor_edges = optimus.ConnectionManager([
(input_data, layer0.input),
(layer0.output, layer1.input),
(layer1.output, layer2.input),
(layer2.output, layer3.input),
(layer3.output, chord_classifier.input),
(chord_classifier.output, posterior)])
print "Predictor"
predictor = optimus.Graph(
name=GRAPH_NAME,
inputs=[input_data],
nodes=all_nodes,
connections=predictor_edges.connections,
outputs=[posterior])
# 3. Create Data
stash = biggie.Stash(args.training_file)
stream = S.minibatch(
D.create_uniform_quality_stream(stash, TIME_DIM, vocab_dim=VOCAB),
batch_size=50)
driver = optimus.Driver(
graph=trainer,
name=args.trial_name,
output_directory=args.model_directory)
hyperparams = {learning_rate.name: LEARNING_RATE,
likelihood_threshold.name: LIKELIHOOD_THRESHOLD,
limiter_weight.name: LIMITER_WEIGHT}
driver.fit(stream, hyperparams=hyperparams, **DRIVER_ARGS)
validator_file = path.join(driver.output_directory, args.validator_file)
optimus.save(validator, def_file=validator_file)
predictor_file = path.join(driver.output_directory, args.predictor_file)
optimus.save(predictor, def_file=predictor_file)
def main(args):
# 1.1 Create Inputs
input_data = optimus.Input(name='cqt',
shape=(None, 1, TIME_DIM, PITCH_DIM))
chord_idx = optimus.Input(name='chord_idx', shape=(None, ), dtype='int32')
learning_rate = optimus.Input(name='learning_rate', shape=None)
# 1.2 Create Nodes
layer0 = optimus.Conv3D(name='layer0',
input_shape=input_data.shape,
weight_shape=(32, 1, 5, 19),
pool_shape=(2, 3),
act_type='relu')
layer1 = optimus.Conv3D(name='layer1',
input_shape=layer0.output.shape,
weight_shape=(64, None, 5, 15),
act_type='relu')
layer2 = optimus.Conv3D(name='layer2',
input_shape=layer1.output.shape,
weight_shape=(128, None, 3, 15),
act_type='relu')
layer3 = optimus.Affine(name='layer3',
input_shape=layer2.output.shape,
output_shape=(
None,
1024,
),
act_type='relu')
chord_classifier = optimus.Softmax(name='chord_classifier',
input_shape=layer3.output.shape,
n_out=VOCAB,
act_type='linear')
all_nodes = [layer0, layer1, layer2, layer3, chord_classifier]
# 1.1 Create Losses
chord_mce = optimus.ClassificationError(name="chord_mce")
# 2. Define Edges
trainer_edges = optimus.ConnectionManager([
(input_data, layer0.input), (layer0.output, layer1.input),
(layer1.output, layer2.input), (layer2.output, layer3.input),
(layer3.output, chord_classifier.input),
(chord_classifier.output, chord_mce.prediction),
(chord_idx, chord_mce.target_idx)
])
update_manager = optimus.ConnectionManager([
(learning_rate, layer0.weights), (learning_rate, layer0.bias),
(learning_rate, layer1.weights), (learning_rate, layer1.bias),
(learning_rate, layer2.weights), (learning_rate, layer2.bias),
(learning_rate, layer3.weights), (learning_rate, layer3.bias),
(learning_rate, chord_classifier.weights),
(learning_rate, chord_classifier.bias)
])
trainer = optimus.Graph(name=GRAPH_NAME,
inputs=[input_data, chord_idx, learning_rate],
nodes=all_nodes,
connections=trainer_edges.connections,
outputs=[optimus.Graph.TOTAL_LOSS],
losses=[chord_mce],
updates=update_manager.connections)
for n in all_nodes:
optimus.random_init(n.weights)
optimus.random_init(n.bias)
if args.init_param_file:
trainer.load_param_values(args.init_param_file)
posterior = optimus.Output(name='posterior')
predictor_edges = optimus.ConnectionManager([
(input_data, layer0.input), (layer0.output, layer1.input),
(layer1.output, layer2.input), (layer2.output, layer3.input),
(layer3.output, chord_classifier.input),
(chord_classifier.output, posterior)
])
predictor = optimus.Graph(name=GRAPH_NAME,
inputs=[input_data],
nodes=all_nodes,
connections=predictor_edges.connections,
outputs=[posterior])
# 3. Create Data
print "Loading %s" % args.training_file
stash = biggie.Stash(args.training_file)
synth_stash = biggie.Stash(args.secondary_source)
stream = D.muxed_uniform_chord_stream(stash,
synth_stash,
TIME_DIM,
pitch_shift=0,
vocab_dim=VOCAB,
working_size=10)
# stream = D.create_uniform_chord_stream(
# stash, TIME_DIM, pitch_shift=0, vocab_dim=VOCAB, working_size=10)
# if args.secondary_source:
# print "Loading %s" % args.secondary_source
# stash2 = biggie.Stash(args.secondary_source)
# stream2 = D.create_uniform_chord_stream(
# stash2, TIME_DIM, pitch_shift=0, vocab_dim=VOCAB, working_size=5)
# stream = S.mux([stream, stream2], [0.5, 0.5])
stream = S.minibatch(stream, batch_size=BATCH_SIZE)
print "Starting '%s'" % args.trial_name
driver = optimus.Driver(graph=trainer,
name=args.trial_name,
output_directory=args.model_directory)
hyperparams = {learning_rate.name: LEARNING_RATE}
predictor_file = path.join(driver.output_directory, args.predictor_file)
optimus.save(predictor, def_file=predictor_file)
driver.fit(stream, hyperparams=hyperparams, **DRIVER_ARGS)
def main(args):
# 1.1 Create Inputs
input_data = optimus.Input(name='cqt', shape=(None, 1, TIME_DIM, 252))
target_chroma = optimus.Input(
name='target_chroma',
shape=(None, 12),
)
learning_rate = optimus.Input(name='learning_rate', shape=None)
# 1.2 Create Nodes
layer0 = optimus.Conv3D(name='layer0',
input_shape=input_data.shape,
weight_shape=(12, 1, 3, 19),
pool_shape=(1, 3),
act_type='relu')
layer1 = optimus.Conv3D(name='layer1',
input_shape=layer0.output.shape,
weight_shape=(16, None, 3, 15),
act_type='relu')
layer2 = optimus.Conv3D(name='layer2',
input_shape=layer1.output.shape,
weight_shape=(20, None, 1, 15),
act_type='relu')
layer3 = optimus.Affine(name='layer3',
input_shape=layer2.output.shape,
output_shape=(
None,
12,
),
act_type='sigmoid')
all_nodes = [layer0, layer1, layer2, layer3]
# 1.1 Create Losses
chroma_xentropy = optimus.CrossEntropy(name="chroma_xentropy")
# 2. Define Edges
trainer_edges = optimus.ConnectionManager([
(input_data, layer0.input), (layer0.output, layer1.input),
(layer1.output, layer2.input), (layer2.output, layer3.input),
(layer3.output, chroma_xentropy.prediction),
(target_chroma, chroma_xentropy.target)
])
update_manager = optimus.ConnectionManager([
(learning_rate, layer0.weights), (learning_rate, layer0.bias),
(learning_rate, layer1.weights), (learning_rate, layer1.bias),
(learning_rate, layer2.weights), (learning_rate, layer2.bias),
(learning_rate, layer3.weights), (learning_rate, layer3.bias)
])
trainer = optimus.Graph(name=GRAPH_NAME,
inputs=[input_data, target_chroma, learning_rate],
nodes=all_nodes,
connections=trainer_edges.connections,
outputs=[optimus.Graph.TOTAL_LOSS],
losses=[chroma_xentropy],
updates=update_manager.connections)
optimus.random_init(layer0.weights)
optimus.random_init(layer1.weights)
optimus.random_init(layer2.weights)
optimus.random_init(layer3.weights)
validator = optimus.Graph(name=GRAPH_NAME,
inputs=[input_data, target_chroma],
nodes=all_nodes,
connections=trainer_edges.connections,
outputs=[optimus.Graph.TOTAL_LOSS],
losses=[chroma_xentropy])
chroma_out = optimus.Output(name='chroma')
predictor_edges = optimus.ConnectionManager([(input_data, layer0.input),
(layer0.output, layer1.input),
(layer1.output, layer2.input),
(layer2.output, layer3.input),
(layer3.output, chroma_out)])
predictor = optimus.Graph(name=GRAPH_NAME,
inputs=[input_data],
nodes=all_nodes,
connections=predictor_edges.connections,
outputs=[chroma_out])
# 3. Create Data
source = optimus.Queue(optimus.File(args.training_file),
transformers=[
T.chord_sample(input_data.shape[2]),
T.pitch_shift(8), T.map_to_chroma
],
**SOURCE_ARGS)
driver = optimus.Driver(graph=trainer,
name=args.trial_name,
output_directory=args.model_directory)
hyperparams = {learning_rate.name: LEARNING_RATE}
driver.fit(source, hyperparams=hyperparams, **DRIVER_ARGS)
validator_file = path.join(driver.output_directory, args.validator_file)
optimus.save(validator, def_file=validator_file)
predictor_file = path.join(driver.output_directory, args.predictor_file)
optimus.save(predictor, def_file=predictor_file)
def main(args):
# 1.1 Create Inputs
input_data = optimus.Input(name='cqt',
shape=(None, 1, TIME_DIM, PITCH_DIM))
chord_idx = optimus.Input(name='chord_idx', shape=(None, ), dtype='int32')
learning_rate = optimus.Input(name='learning_rate', shape=None)
# 1.2 Create Nodes
input_scalar = optimus.Normalize(name='input_scalar',
mode='l2',
scale_factor=50.0)
layer0 = optimus.Conv3D(name='layer0',
input_shape=input_data.shape,
weight_shape=(32, 1, 5, 19),
pool_shape=(2, 3),
act_type='relu')
layer1 = optimus.Conv3D(name='layer1',
input_shape=layer0.output.shape,
weight_shape=(64, None, 5, 15),
act_type='relu')
layer2 = optimus.Conv3D(name='layer2',
input_shape=layer1.output.shape,
weight_shape=(128, None, 3, 15),
act_type='relu')
layer3 = optimus.Affine(name='layer3',
input_shape=layer2.output.shape,
output_shape=(
None,
1024,
),
act_type='relu')
chord_classifier = optimus.Softmax(name='chord_classifier',
input_shape=layer3.output.shape,
n_out=VOCAB,
act_type='linear')
all_nodes = [
input_scalar, layer0, layer1, layer2, layer3, chord_classifier
]
# 1.1 Create Losses
chord_nll = optimus.NegativeLogLikelihood(name="chord_nll")
# 2. Define Edges
trainer_edges = optimus.ConnectionManager([
(input_data, input_scalar.input), (input_scalar.output, layer0.input),
(layer0.output, layer1.input), (layer1.output, layer2.input),
(layer2.output, layer3.input), (layer3.output, chord_classifier.input),
(chord_classifier.output, chord_nll.likelihood),
(chord_idx, chord_nll.target_idx)
])
update_manager = optimus.ConnectionManager([
(learning_rate, layer0.weights), (learning_rate, layer0.bias),
(learning_rate, layer1.weights), (learning_rate, layer1.bias),
(learning_rate, layer2.weights), (learning_rate, layer2.bias),
(learning_rate, layer3.weights), (learning_rate, layer3.bias),
(learning_rate, chord_classifier.weights),
(learning_rate, chord_classifier.bias)
])
trainer = optimus.Graph(name=GRAPH_NAME,
inputs=[input_data, chord_idx, learning_rate],
nodes=all_nodes,
connections=trainer_edges.connections,
outputs=[optimus.Graph.TOTAL_LOSS],
losses=[chord_nll],
updates=update_manager.connections)
for n in all_nodes[1:]:
optimus.random_init(n.weights)
optimus.random_init(n.bias)
if args.init_param_file:
param_values = dict(np.load(args.init_param_file))
keys = param_values.keys()
for key in keys:
if chord_classifier.name in key or layer3.name in key:
print "skipping %s" % key
del param_values[key]
trainer.param_values = param_values
posterior = optimus.Output(name='posterior')
predictor_edges = optimus.ConnectionManager([
(input_data, input_scalar.input), (input_scalar.output, layer0.input),
(layer0.output, layer1.input), (layer1.output, layer2.input),
(layer2.output, layer3.input), (layer3.output, chord_classifier.input),
(chord_classifier.output, posterior)
])
predictor = optimus.Graph(name=GRAPH_NAME,
inputs=[input_data],
nodes=all_nodes,
connections=predictor_edges.connections,
outputs=[posterior])
# 3. Create Data
print "Loading %s" % args.training_file
stash = biggie.Stash(args.training_file)
stream = S.minibatch(D.create_uniform_chord_stream(stash,
TIME_DIM,
pitch_shift=0,
vocab_dim=VOCAB,
working_size=10),
batch_size=BATCH_SIZE)
print "Starting '%s'" % args.trial_name
driver = optimus.Driver(graph=trainer,
name=args.trial_name,
output_directory=args.model_directory)
hyperparams = {learning_rate.name: LEARNING_RATE}
predictor_file = path.join(driver.output_directory, args.predictor_file)
optimus.save(predictor, def_file=predictor_file)
driver.fit(stream, hyperparams=hyperparams, **DRIVER_ARGS)
def main(args):
# 1.1 Create Inputs
input_data = optimus.Input(
name='cqt',
shape=(None, OCTAVE_DIM, TIME_DIM, PITCH_DIM))
chord_idx = optimus.Input(
name='chord_idx',
shape=(None,),
dtype='int32')
learning_rate = optimus.Input(
name='learning_rate',
shape=None)
margin = optimus.Input(
name='margin',
shape=None)
# 1.2 Create Nodes
layer0 = optimus.Conv3D(
name='layer0',
input_shape=input_data.shape,
weight_shape=(32, None, 5, 5),
pool_shape=(2, 3),
act_type='relu')
layer1 = optimus.Conv3D(
name='layer1',
input_shape=layer0.output.shape,
weight_shape=(64, None, 5, 7),
act_type='relu')
layer2 = optimus.Conv3D(
name='layer2',
input_shape=layer1.output.shape,
weight_shape=(128, None, 3, 6),
act_type='relu')
layer3 = optimus.Affine(
name='layer3',
input_shape=layer2.output.shape,
output_shape=(None, 1024,),
act_type='relu')
chord_estimator = optimus.Softmax(
name='chord_estimator',
input_shape=layer3.output.shape,
output_shape=(None, VOCAB,),
act_type='sigmoid')
all_nodes = [layer0, layer1, layer2, layer3, chord_classifier]
log = optimus.Log(name='log')
neg = optimus.Gain(name='gain')
neg.weight = np.array(-1)
energy = optimus.SelectIndex(name='selector')
loss = optimus.Mean(name='total_loss')
# 1.1 Create Losses
chord_margin = optimus.Margin(
name="chord_margin",
mode='max')
# 2. Define Edges
trainer_edges = optimus.ConnectionManager([
(input_data, layer0.input),
(layer0.output, layer1.input),
(layer1.output, layer2.input),
(layer2.output, layer3.input),
(layer3.output, chord_estimator.input),
(chord_estimator.output, log.input),
(log.output, neg.input),
(neg.output, energy.input),
(chord_idx, energy.index),
(energy.output, loss.input)])
update_manager = optimus.ConnectionManager([
(learning_rate, layer0.weights),
(learning_rate, layer0.bias),
(learning_rate, layer1.weights),
(learning_rate, layer1.bias),
(learning_rate, layer2.weights),
(learning_rate, layer2.bias),
(learning_rate, layer3.weights),
(learning_rate, layer3.bias),
(learning_rate, chord_estimator.weights),
(learning_rate, chord_estimator.bias)])
trainer = optimus.Graph(
name=GRAPH_NAME,
inputs=[input_data, chord_idx, learning_rate, margin],
nodes=all_nodes,
connections=trainer_edges.connections,
outputs=[optimus.Graph.TOTAL_LOSS],
loss=[loss.output],
updates=update_manager.connections)
for n in all_nodes:
optimus.random_init(n.weights)
optimus.random_init(n.bias)
if args.init_param_file:
print "Loading parameters: %s" % args.init_param_file
trainer.load_param_values(args.init_param_file)
for n in all_nodes[-2:]:
optimus.random_init(n.weights)
optimus.random_init(n.bias)
posterior = optimus.Output(
name='posterior')
predictor_edges = optimus.ConnectionManager([
(input_data, layer0.input),
(layer0.output, layer1.input),
(layer1.output, layer2.input),
(layer2.output, layer3.input),
(layer3.output, chord_classifier.input),
(chord_classifier.output, posterior)])
predictor = optimus.Graph(
name=GRAPH_NAME,
inputs=[input_data],
nodes=all_nodes,
connections=predictor_edges.connections,
outputs=[posterior])
# 3. Create Data
print "Loading %s" % args.training_file
stash = biggie.Stash(args.training_file)
stream = D.create_stash_stream(
stash, TIME_DIM, pitch_shift=0, vocab_dim=VOCAB, pool_size=25)
if args.secondary_source:
stash2 = biggie.Stash(args.secondary_source)
stream2 = D.create_uniform_chord_stream(
stash2, TIME_DIM, pitch_shift=0, vocab_dim=VOCAB, working_size=5)
stream = S.mux([stream, stream2], [0.5, 0.5])
stream = S.minibatch(stream, batch_size=BATCH_SIZE)
print "Starting '%s'" % args.trial_name
driver = optimus.Driver(
graph=trainer,
name=args.trial_name,
output_directory=args.model_directory)
hyperparams = {learning_rate.name: LEARNING_RATE,
margin.name: MARGIN}
predictor_file = path.join(driver.output_directory, args.predictor_file)
optimus.save(predictor, def_file=predictor_file)
driver.fit(stream, hyperparams=hyperparams, **DRIVER_ARGS)
def main(args):
# 1.1 Create Inputs
input_data = optimus.Input(name='cqt', shape=(None, 1, TIME_DIM, 252))
fret_bitmap = optimus.Input(name='fret_bitmap', shape=(None, 6, FRET_DIM))
learning_rate = optimus.Input(name='learning_rate', shape=None)
# 1.2 Create Nodes
layer0 = optimus.Conv3D(name='layer0',
input_shape=input_data.shape,
weight_shape=(12, 1, 3, 19),
pool_shape=(1, 3),
act_type='relu')
layer1 = optimus.Conv3D(name='layer1',
input_shape=layer0.output.shape,
weight_shape=(16, None, 3, 15),
act_type='relu')
layer2 = optimus.Conv3D(name='layer2',
input_shape=layer1.output.shape,
weight_shape=(20, None, 1, 15),
act_type='relu')
layer3 = optimus.Affine(name='layer3',
input_shape=layer2.output.shape,
output_shape=(
None,
512,
),
act_type='relu')
fretboard = optimus.MultiSoftmax(name='fretboard',
input_shape=layer3.output.shape,
output_shape=(None, 6, FRET_DIM),
act_type='linear')
all_nodes = [layer0, layer1, layer2, layer3, fretboard]
# 1.1 Create Losses
mse = optimus.MeanSquaredError(name="mean_squared_error")
# 2. Define Edges
trainer_edges = optimus.ConnectionManager([
(input_data, layer0.input), (layer0.output, layer1.input),
(layer1.output, layer2.input), (layer2.output, layer3.input),
(layer3.output, fretboard.input), (fretboard.output, mse.prediction),
(fret_bitmap, mse.target)
])
update_manager = optimus.ConnectionManager([
(learning_rate, layer0.weights), (learning_rate, layer0.bias),
(learning_rate, layer1.weights), (learning_rate, layer1.bias),
(learning_rate, layer2.weights), (learning_rate, layer2.bias),
(learning_rate, layer3.weights), (learning_rate, layer3.bias),
(learning_rate, fretboard.weights), (learning_rate, fretboard.bias)
])
trainer = optimus.Graph(name=GRAPH_NAME,
inputs=[input_data, fret_bitmap, learning_rate],
nodes=all_nodes,
connections=trainer_edges.connections,
outputs=[optimus.Graph.TOTAL_LOSS],
losses=[mse],
updates=update_manager.connections)
optimus.random_init(fretboard.weights)
validator = optimus.Graph(name=GRAPH_NAME,
inputs=[input_data, fret_bitmap],
nodes=all_nodes,
connections=trainer_edges.connections,
outputs=[optimus.Graph.TOTAL_LOSS],
losses=[mse])
posterior = optimus.Output(name='posterior')
predictor_edges = optimus.ConnectionManager([
(input_data, layer0.input), (layer0.output, layer1.input),
(layer1.output, layer2.input), (layer2.output, layer3.input),
(layer3.output, fretboard.input), (fretboard.output, posterior)
])
predictor = optimus.Graph(name=GRAPH_NAME,
inputs=[input_data],
nodes=all_nodes,
connections=predictor_edges.connections,
outputs=[posterior])
# 3. Create Data
source = optimus.Queue(optimus.File(args.training_file),
transformers=[
T.cqt_sample(input_data.shape[2]),
T.pitch_shift(MAX_FRETS, bins_per_pitch=3),
T.fret_indexes_to_bitmap(FRET_DIM)
],
**SOURCE_ARGS)
driver = optimus.Driver(graph=trainer,
name=args.trial_name,
output_directory=args.model_directory)
hyperparams = {learning_rate.name: LEARNING_RATE}
driver.fit(source, hyperparams=hyperparams, **DRIVER_ARGS)
validator_file = path.join(driver.output_directory, args.validator_file)
optimus.save(validator, def_file=validator_file)
predictor_file = path.join(driver.output_directory, args.predictor_file)
optimus.save(predictor, def_file=predictor_file)
def main(args):
# 1.1 Create Inputs
input_data = optimus.Input(name='cqt', shape=(None, 1, TIME_DIM, 252))
chord_idx = optimus.Input(name='chord_idx', shape=(None, ), dtype='int32')
learning_rate = optimus.Input(name='learning_rate', shape=None)
# 1.2 Create Nodes
layer0 = optimus.Conv3D(name='layer0',
input_shape=input_data.shape,
weight_shape=(30, 1, 9, 19),
pool_shape=(1, 3),
act_type='relu')
layer1 = optimus.Conv3D(name='layer1',
input_shape=layer0.output.shape,
weight_shape=(50, None, 7, 15),
act_type='relu')
layer2 = optimus.Affine(name='layer2',
input_shape=layer1.output.shape,
output_shape=(
None,
1024,
),
act_type='relu')
layer3 = optimus.Affine(name='layer3',
input_shape=layer2.output.shape,
output_shape=(
None,
1024,
),
act_type='relu')
chord_classifier = optimus.Softmax(name='chord_classifier',
input_shape=layer3.output.shape,
n_out=VOCAB,
act_type='linear')
all_nodes = [layer0, layer1, layer2, layer3, chord_classifier]
# 1.1 Create Losses
chord_nll = optimus.NegativeLogLikelihood(name="chord_nll")
# 2. Define Edges
trainer_edges = optimus.ConnectionManager([
(input_data, layer0.input), (layer0.output, layer1.input),
(layer1.output, layer2.input), (layer2.output, layer3.input),
(layer3.output, chord_classifier.input),
(chord_classifier.output, chord_nll.likelihood),
(chord_idx, chord_nll.target_idx)
])
update_manager = optimus.ConnectionManager([
(learning_rate, layer0.weights), (learning_rate, layer0.bias),
(learning_rate, layer1.weights), (learning_rate, layer1.bias),
(learning_rate, layer2.weights), (learning_rate, layer2.bias),
(learning_rate, layer3.weights), (learning_rate, layer3.bias),
(learning_rate, chord_classifier.weights),
(learning_rate, chord_classifier.bias)
])
trainer = optimus.Graph(name=GRAPH_NAME,
inputs=[input_data, chord_idx, learning_rate],
nodes=all_nodes,
connections=trainer_edges.connections,
outputs=[optimus.Graph.TOTAL_LOSS],
losses=[chord_nll],
updates=update_manager.connections)
for n in all_nodes:
optimus.random_init(n.weights)
optimus.random_init(n.bias)
validator = optimus.Graph(name=GRAPH_NAME,
inputs=[input_data, chord_idx],
nodes=all_nodes,
connections=trainer_edges.connections,
outputs=[optimus.Graph.TOTAL_LOSS],
losses=[chord_nll])
posterior = optimus.Output(name='posterior')
predictor_edges = optimus.ConnectionManager([
(input_data, layer0.input), (layer0.output, layer1.input),
(layer1.output, layer2.input), (layer2.output, layer3.input),
(layer3.output, chord_classifier.input),
(chord_classifier.output, posterior)
])
predictor = optimus.Graph(name=GRAPH_NAME,
inputs=[input_data],
nodes=all_nodes,
connections=predictor_edges.connections,
outputs=[posterior])
# 3. Create Data
stash = biggie.Stash(args.training_file)
hyperparams = {learning_rate.name: LEARNING_RATE}
valid_idx = [0]
for q in range(1, 13):
valid_idx.append(q)
stream = S.minibatch(D.create_uniform_quality_stream(
stash, TIME_DIM, vocab_dim=VOCAB, valid_idx=valid_idx),
batch_size=BATCH_SIZE)
driver = optimus.Driver(graph=trainer,
name=args.trial_name + "_c%02d" % q,
output_directory=args.model_directory)
driver.fit(stream,
hyperparams=hyperparams,
max_iter=20000,
**DRIVER_ARGS)
validator_file = path.join(driver.output_directory, args.validator_file)
optimus.save(validator, def_file=validator_file)
predictor_file = path.join(driver.output_directory, args.predictor_file)
optimus.save(predictor, def_file=predictor_file)
