def predict(model_path, res_path):
X, y = load_data(test=False)
x_train, x_val, y_train, y_val = train_test_split(X,
y,
random_state=69,
test_size=0.1)
model = load_model(model_path)
y_pre = model.predict(x_val)
loss = np.sqrt(np.mean(np.square(y_pre - y_val))) * 48
print('best val loss: %.8f' % loss)
# model = load_model(model_path)
x_test = load_data(test=True)
res = model.predict(x_test) * 48 + 48
export(res, res_path)
def recognize(args):
workspace = cfg.workspace
events = cfg.events
n_events = args.n_events
snr = args.snr
md_na = args.model_name
lb_to_ix = cfg.lb_to_ix
n_out = len(cfg.events)
te_fold = cfg.te_fold
md_path = os.path.join(workspace, "models", pp_data.get_filename(__file__),
"n_events=%d" % n_events, "fold=%d" % te_fold,
"snr=%d" % snr, md_na)
md = serializations.load(md_path)
# Load data.
feature_dir = os.path.join(workspace, "features", "logmel",
"n_events=%d" % n_events)
yaml_dir = os.path.join(workspace, "mixed_audio", "n_events=%d" % n_events)
(tr_x, tr_at_y, tr_sed_y, tr_na_list, te_x, te_at_y, te_sed_y,
te_na_list) = pp_data.load_data(feature_dir=feature_dir,
yaml_dir=yaml_dir,
te_fold=te_fold,
snr=snr,
is_scale=is_scale)
x = te_x
at_gts = te_at_y
sed_gts = te_sed_y
na_list = te_na_list
# Recognize.
[at_pds] = md.predict(x) # (N, 16)
observe_nodes = [md.find_layer('detect').output_]
f_forward = md.get_observe_forward_func(observe_nodes)
[seg_masks] = md.run_function(f_forward, x, batch_size=500,
tr_phase=0.) # (n_clips, n_time, n_out)
seg_masks = np.transpose(seg_masks, (0, 2, 1))[:, :, :, np.newaxis]
# Dump to pickle.
out_dir = os.path.join(workspace, "preds", pp_data.get_filename(__file__),
"n_events=%d" % n_events, "fold=%d" % te_fold,
"snr=%d" % snr,
os.path.splitext(md_na)[0])
pp_data.create_folder(out_dir)
out_at_path = os.path.join(out_dir, "at_probs.p")
out_seg_masks_path = os.path.join(out_dir, "seg_masks.p")
cPickle.dump(at_pds,
open(out_at_path, 'wb'),
protocol=cPickle.HIGHEST_PROTOCOL)
cPickle.dump(seg_masks,
open(out_seg_masks_path, 'wb'),
protocol=cPickle.HIGHEST_PROTOCOL)
# Print stats.
sed_pds = np.mean(seg_masks, axis=-1) # (N, n_out, n_time)
sed_pds = np.transpose(sed_pds, (0, 2, 1)) # (N, n_time, n_out)
print_stats(at_pds, at_gts, sed_pds, sed_gts)
def train(epochs=100, batch_size=48):
X, y = load_data(False)
x_train, x_test, y_train, y_test = train_test_split(X,
y,
random_state=69,
test_size=0.1)
model = myModel(96, 96, 1, 30)
# model = resnet(96, 96, 1, 30)
# rmsprop = optimizers.RMSprop(decay=0.00001)
model.compile(optimizer='rmsprop',
loss='mean_squared_error',
metrics=['acc'])
# 保存最优模型
checkpoint = keras.callbacks.ModelCheckpoint('model/best_weights.h5',
monitor='val_loss',
save_best_only=True)
# 15个epoch没变化时停止训练
earlystop = keras.callbacks.EarlyStopping(monitor='val_loss', patience=15)
# 保存loss曲线和精度曲线
tb = keras.callbacks.TensorBoard(log_dir='model/log/')
# 更新lr的回调函数
updatelr = keras.callbacks.ReduceLROnPlateau(monitor='val_loss',
factor=0.5,
patience=10,
min_lr=0.0002)
callbacks_list = [checkpoint, earlystop, tb, updatelr]
model.fit(x_train,
y_train,
batch_size=batch_size,
epochs=epochs,
validation_data=(x_test, y_test),
callbacks=callbacks_list)
def predict():
model = keras.models.load_model('model.ml')
x_train,y_train = prepare_data.load_data('test')
if keras.backend.image_data_format() == 'channels_first':
x_train = x_train.reshape(x_train.shape[0],1,SIZE,SIZE)
# x_test = x_test.reshape(x_test.shape[0], 1, img_rows, img_cols)
input_shape = (1,SIZE,SIZE)
else:
x_train = x_train.reshape(x_train.shape[0],SIZE,SIZE,1)
# x_test = x_test.reshape(x_test.shape[0], img_rows, img_cols, 1)
input_shape = (SIZE,SIZE,1)
x_train = x_train / 255
pred = []
# for inp in x_train:
pred.append(model.predict([x_train]))
i=0
for z in pred[0]:
img = x_train[i] * 255
cv2.circle(img,(int(z[0]*SIZE),int(z[1]*SIZE)),2,100,-1)
img = cv2.resize(img,fx=10,fy=10, dsize=None)
cv2.imwrite('data/test2/'+str(i)+'.jpg', img)
print('prediction: ' + str(int(z[0]*SIZE)) + ',' + str(int(z[1]*SIZE)))
print('actual: ' + str(y_train[i]*SIZE))
i+=1
def setUp(self):
self.train_data, self.validation_data = \
prepare_data.load_data(
self.IMAGE_DIR,
self.SEG_DIR,
n_class=2,
train_val_rate=0.9
)
self.data = prepare_data.generate_data(self.IMAGE_DIR, self.SEG_DIR, 1)
def test_generate_test_dataset(self):
test_data, _ = prepare_data.load_data(self.IMAGE_DIR,
None,
n_class=2,
train_val_rate=0.9)
test_images = prepare_data.generate_data(*test_data, 1)
for img, seg in test_images:
self.assertEqual(len(seg), 0)
break
def get_avg_stats(args, file_name, bgn_iter, fin_iter, interval_iter):
eval_hdf5_path = os.path.join(args.cpickle_dir, "eval.h5")
workspace = args.workspace
# Load ground truth
(te_x, te_y, te_id_list) = pp_data.load_data(eval_hdf5_path)
y = te_y
# Average prediction probabilities of several iterations
prob_dir = os.path.join(workspace, "probs", file_name, "test")
names = os.listdir(prob_dir)
probs = []
iters = range(bgn_iter, fin_iter, interval_iter)
for iter in iters:
pickle_path = os.path.join(prob_dir, "prob_%d_iters.p" % iter)
prob = cPickle.load(open(pickle_path, 'rb'))
probs.append(prob)
#print(len(probs))
avg_prob = np.mean(np.array(probs), axis=0)
# Compute stats
t1 = time.time()
n_out = y.shape[1]
stats = []
for k in range(n_out):
(precisions, recalls, thresholds) = metrics.precision_recall_curve(y[:, k], avg_prob[:, k])
avg_precision = metrics.average_precision_score(y[:, k], avg_prob[:, k], average=None)
(fpr, tpr, thresholds) = metrics.roc_curve(y[:, k], avg_prob[:, k])
auc = metrics.roc_auc_score(y[:, k], avg_prob[:, k], average=None)
#eer = pp_data.eer(avg_prob[:, k], y[:, k])
skip = 1000
dict = {'precisions': precisions[0::skip], 'recalls': recalls[0::skip], 'AP': avg_precision,
'fpr': fpr[0::skip], 'fnr': 1. - tpr[0::skip], 'auc': auc}
stats.append(dict)
logging.info("Callback time: %s" % (time.time() - t1,))
# Dump stats
dump_path = os.path.join(workspace, "stats", pp_data.get_filename(__file__), "test", "avg_%d_%d_%d.p" % (bgn_iter, fin_iter, interval_iter))
pp_data.create_folder(os.path.dirname(dump_path))
cPickle.dump(stats, open(dump_path, 'wb'), protocol=cPickle.HIGHEST_PROTOCOL)
#print(stats.shape)
#for i, e in enumerate(stats):
# logging.info("%d. mAP: %f, auc: %f, d_prime: %f" % (i, e['AP'], e['auc'], pp_data.d_prime(e['auc'])))
# Write out to log
logging.info("bgn_iter, fin_iter, interval_iter: %d, %d, %d" % (bgn_iter, fin_iter, interval_iter))
logging.info("mAP: %f" % np.mean([e['AP'] for e in stats]))
auc = np.mean([e['auc'] for e in stats])
logging.info("auc: %f" % auc)
logging.info("d_prime: %f" % pp_data.d_prime(auc))
def main():
use_cuda = False
batch_first = True
n_layer = 4
batch_size = 128
hidden_size = [32, 32, 32, 32]
input_size = 3
height = 36
width = 80
lags = 12
steps = 12
channels = 1
bias = True
file_path = 'sst.mon.mean1850-2015.nc' #####
input, target = prepare_data.load_data(file_path, lags, steps)
data_generator = prepare_data.get_batches(input, target, batch_size,
height, width, channels, lags,
steps)
# encoder1 = Encoder(input_lang.n_words, hidden_size)
encoder1 = Encoder(n_layers=n_layer,
hidden_sizes=hidden_size,
input_sizes=input_size,
batch_size=batch_size,
channels=channels,
height=height,
width=width,
bias=bias,
use_cuda=use_cuda)
# decoder1 = Decoder(hidden_size, output_lang.n_words, dropout_p=0.1)
decoder1 = Decoder(n_layers=n_layer,
hidden_sizes=hidden_size,
input_sizes=input_size,
batch_size=batch_size,
height=height,
width=width,
use_cuda=use_cuda)
if use_cuda:
encoder1 = encoder1.cuda()
attn_decoder1 = decoder1.cuda()
trainIters(encoder1,
decoder1,
75000,
data_generator,
print_every=5000,
batch_first=batch_first,
use_cuda=use_cuda)
def plot_fig2():
workspace = cfg.workspace
events = cfg.events
te_fold = cfg.te_fold
# Load data.
snr = 20
n_events = 3
feature_dir = os.path.join(workspace, "features", "logmel",
"n_events=%d" % n_events)
yaml_dir = os.path.join(workspace, "mixed_audio", "n_events=%d" % n_events)
(tr_x, tr_at_y, tr_sed_y, tr_na_list, te_x, te_at_y, te_sed_y,
te_na_list) = pp_data.load_data(feature_dir=feature_dir,
yaml_dir=yaml_dir,
te_fold=te_fold,
snr=snr,
is_scale=is_scale)
x = te_x
at_y = te_at_y
na_list = te_na_list
# Load model.
md_path = os.path.join(
workspace, "models/tmp01/n_events=3/fold=0/snr=20/md2000_iters.p")
md = serializations.load(md_path)
#
observe_nodes = [md.find_layer('seg_masks').output_]
f_forward = md.get_observe_forward_func(observe_nodes)
[seg_masks] = md.run_function(f_forward, x, batch_size=500, tr_phase=0.)
print(seg_masks.shape)
# for (i1, na) in enumerate(na_list):
# if '00292' in na:
# idx = i1
# print(idx)
for i1 in xrange(len(seg_masks)):
print(na_list[i1])
print(at_y[i1])
fig, axs = plt.subplots(5, 4, sharex=True)
axs[0, 0].matshow(x[i1].T, origin='lower', aspect='auto', cmap='jet')
for i2 in xrange(16):
axs[i2 / 4 + 1, i2 % 4].matshow(seg_masks[i1, i2].T,
origin='lower',
aspect='auto',
vmin=0,
vmax=1,
cmap='jet')
axs[i2 / 4 + 1, i2 % 4].set_title(events[i2])
plt.show()
def newCNNNetwork(model_name):
print(model_name)
name = datetime.datetime.now().strftime("%Y-%m-%d_%H-%M-%S")
print(name)
tensBoard = keras.callbacks.TensorBoard(log_dir='log')
img_rows, img_cols = SIZE, SIZE
number_of_categories = 2
x_train, y_train = prepare_data.load_data('train')
if keras.backend.image_data_format() == 'channels_first':
x_train = x_train.reshape(x_train.shape[0], 1, img_rows, img_cols)
#x_test = x_test.reshape(x_test.shape[0], 1, img_rows, img_cols)
input_shape = (1, img_rows, img_cols)
else:
x_train = x_train.reshape(x_train.shape[0], img_rows, img_cols, 1)
#x_test = x_test.reshape(x_test.shape[0], img_rows, img_cols, 1)
input_shape = (img_rows, img_cols, 1)
x_train = x_train / 255
# y_train = y_train / 128
model = keras.models.Sequential()
model.add(keras.layers.Conv2D(64, (2, 2), input_shape=input_shape))
model.add(keras.layers.Activation('relu'))
model.add(keras.layers.MaxPooling2D(pool_size=(2, 2)))
model.add(keras.layers.Dropout(0.2))
# model.add(keras.layers.Conv2D(128, (3, 3)))
# model.add(keras.layers.Activation('relu'))
# model.add(keras.layers.MaxPooling2D(pool_size=(2, 2)))
# model.add(keras.layers.Dropout(0.2))
model.add(keras.layers.Flatten())
#
# model.add(keras.layers.Dense(512, activation='relu'))
# model.add(keras.layers.Dropout(0.4))
model.add(keras.layers.Dense(256, activation='relu'))
model.add(keras.layers.Dropout(0.1))
model.add(keras.layers.Dense(number_of_categories, activation='linear'))
opt = keras.optimizers.Adam(decay=0.000000, lr=0.0015)
model.compile(optimizer=opt, loss='mse', metrics=['mse'])
#model.summary()
model.fit(x_train, y_train, epochs=40, batch_size=32, shuffle=True, validation_split=0.0, callbacks=[tensBoard])
model.save('model.ml')
#sess.close()
keras.backend.clear_session()
def main():
print("\nBegin k-means clustering")
X_test, Y_test = load_data('toy1', 'test')
k = 3
print("\nClustering data with k=" + str(k))
clustering = cluster(X_test, k)
print("\nDone. Clustering:")
print(clustering)
fig = plt.figure()
plt.scatter(X_test[:,0], X_test[:,1], marker='+')
plt.show()
def get_stats(args, bgn_iter, fin_iter, interval):
workspace = cfg.workspace
events = cfg.events
te_fold = cfg.te_fold
n_events = args.n_events
snr = args.snr
# Load ground truth data.
feature_dir = os.path.join(workspace, "features", "logmel",
"n_events=%d" % n_events)
yaml_dir = os.path.join(workspace, "mixed_audio", "n_events=%d" % n_events)
(tr_x, tr_at_y, tr_sed_y, tr_na_list, te_x, te_at_y, te_sed_y,
te_na_list) = pp_data.load_data(feature_dir=feature_dir,
yaml_dir=yaml_dir,
te_fold=te_fold,
snr=snr,
is_scale=is_scale)
at_gts = te_at_y
sed_gts = te_sed_y
# Load and sum
preds_dir = os.path.join(workspace, "preds",
pp_data.get_filename(__file__),
"n_events=%d" % n_events, "fold=%d" % te_fold,
"snr=%d" % snr)
at_probs_list, seg_masks_list = [], []
for iter in xrange(bgn_iter, fin_iter, interval):
at_probs_path = os.path.join(preds_dir, "md%d_iters" % iter,
"at_probs.p")
at_probs = cPickle.load(open(at_probs_path, 'rb'))
at_probs_list.append(at_probs)
seg_masks_path = os.path.join(preds_dir, "md%d_iters" % iter,
"seg_masks.p")
seg_masks = cPickle.load(open(seg_masks_path, 'rb'))
seg_masks_list.append(seg_masks)
at_probs = np.mean(at_probs_list, axis=0) # (n_clips, n_classes)
seg_masks = np.mean(seg_masks_list,
axis=0) # (n_clips, n_classes, n_time, n_freq)
sed_probs = np.mean(seg_masks,
axis=-1).transpose(0, 2,
1) # (n_clips, n_time, n_classes)
print_stats(at_probs, at_gts, sed_probs, sed_gts)
def plot_hotmap(args):
workspace = cfg.workspace
events = cfg.events
md_na = args.model_name
n_events = args.n_events
te_fold = cfg.te_fold
feature_dir = os.path.join(workspace, "features", "logmel",
"n_events=%d" % n_events)
yaml_dir = os.path.join(workspace, "mixed_audio", "n_events=%d" % n_events)
(tr_x, tr_at_y, tr_sed_y, tr_na_list, te_x, te_at_y, te_sed_y,
te_na_list) = pp_data.load_data(feature_dir=feature_dir,
yaml_dir=yaml_dir,
te_fold=te_fold,
is_scale=is_scale)
md_path = os.path.join(workspace, "models", pp_data.get_filename(__file__),
"n_events=%d" % n_events, md_na)
md = serializations.load(md_path)
x = te_x
y = te_at_y
observe_nodes = [md.find_layer('hotmap').output_]
f_forward = md.get_observe_forward_func(observe_nodes)
[a4] = md.run_function(f_forward, x, batch_size=500, tr_phase=0.)
print a4.shape
for i1 in xrange(len(a4)):
# if te_na_list[i1] == 'CR_lounge_220110_0731.s2700_chunk48':
print(y[i1])
# print np.mean(a4[i1], axis=(1,2))
fig, axs = plt.subplots(5, 4, sharex=True)
axs[0, 0].matshow(x[i1].T, origin='lower', aspect='auto')
for i2 in xrange(16):
axs[i2 / 4 + 1, i2 % 4].matshow(a4[i1, i2].T,
origin='lower',
aspect='auto',
vmin=0,
vmax=1)
axs[i2 / 4 + 1, i2 % 4].set_title(events[i2])
plt.show()
def validation(self, sess, output):
val_image = prepare_data.load_data(self.VALIDATION_DIR,
None,
n_class=2,
train_val_rate=1)[0]
data = prepare_data.generate_data(*val_image, batch_size=1)
for Input, _ in data:
result = sess.run(output,
feed_dict={
self.X: Input,
self.is_training: None
})
break
result = np.argmax(result[0], axis=2)
ident = np.identity(3, dtype=np.int8)
result = ident[result] * 255
plt.imshow((Input[0] * 255).astype(np.int16))
plt.imshow(result, alpha=0.2)
plt.show()
def plot_fig4(data_type, audio_idx):
workspace = cfg.workspace
n_window = cfg.n_window
n_overlap = cfg.n_overlap
fs = cfg.sample_rate
events = cfg.events
te_fold = cfg.te_fold
# Read audio.
audio_path = os.path.join(
workspace, "mixed_audio/n_events=3/%s.mixed_20db.wav" % audio_idx)
(audio, _) = pp_data.read_audio(audio_path, fs)
# Calculate log Mel.
x = _calc_feat(audio)
sp = _calc_spectrogram(audio)
print(x.shape)
# Plot.
fig, axs = plt.subplots(4, 4, sharex=False)
# Plot log Mel spectrogram.
for i2 in xrange(16):
axs[i2 / 4, i2 % 4].set_visible(False)
axs[0, 0].matshow(x.T, origin='lower', aspect='auto', cmap='jet')
axs[0, 0].xaxis.set_ticks([0, 60, 120, 180, 239])
axs[0, 0].xaxis.tick_bottom()
axs[0, 0].xaxis.set_ticklabels(np.arange(0, 10.1, 2.5))
axs[0, 0].set_xlabel("time (s)")
# axs[0,0].xaxis.set_label_coords(1.12, -0.05)
axs[0, 0].yaxis.set_ticks([0, 16, 32, 48, 63])
axs[0, 0].yaxis.set_ticklabels([0, 16, 32, 48, 63])
axs[0, 0].set_ylabel('Mel freq. bin')
axs[0, 0].set_title("Log Mel spectrogram")
axs[0, 0].set_visible(True)
# Plot spectrogram.
axs[0, 2].matshow(np.log(sp.T + 1.),
origin='lower',
aspect='auto',
cmap='jet')
axs[0, 2].xaxis.set_ticks([0, 60, 120, 180, 239])
axs[0, 2].xaxis.tick_bottom()
axs[0, 2].xaxis.set_ticklabels(np.arange(0, 10.1, 2.5))
axs[0, 2].set_xlabel("time (s)")
# axs[0,2].xaxis.set_label_coords(1.12, -0.05)
axs[0, 2].yaxis.set_ticks([0, 128, 256, 384, 512])
axs[0, 2].yaxis.set_ticklabels([0, 128, 256, 384, 512])
axs[0, 2].set_ylabel('FFT freq. bin')
axs[0, 2].set_title("Spectrogram")
axs[0, 2].set_visible(True)
# plt.tight_layout()
plt.show()
# Load data.
snr = 20
n_events = 3
feature_dir = os.path.join(workspace, "features", "logmel",
"n_events=%d" % n_events)
yaml_dir = os.path.join(workspace, "mixed_audio", "n_events=%d" % n_events)
(tr_x, tr_at_y, tr_sed_y, tr_na_list, te_x, te_at_y, te_sed_y,
te_na_list) = pp_data.load_data(feature_dir=feature_dir,
yaml_dir=yaml_dir,
te_fold=te_fold,
snr=snr,
is_scale=is_scale)
if data_type == "train":
x = tr_x
at_y = tr_at_y
sed_y = tr_sed_y
na_list = tr_na_list
elif data_type == "test":
x = te_x
at_y = te_at_y
sed_y = te_sed_y
na_list = te_na_list
for (i1, na) in enumerate(na_list):
if audio_idx in na:
idx = i1
print(idx)
# GT mask
(stereo_audio, _) = pp_data.read_stereo_audio(audio_path, target_fs=fs)
event_audio = stereo_audio[:, 0]
noise_audio = stereo_audio[:, 1]
mixed_audio = event_audio + noise_audio
ham_win = np.hamming(n_window)
mixed_cmplx_sp = pp_data.calc_sp(mixed_audio, fs, ham_win, n_window,
n_overlap)
mixed_sp = np.abs(mixed_cmplx_sp)
event_sp = np.abs(
pp_data.calc_sp(event_audio, fs, ham_win, n_window, n_overlap))
noise_sp = np.abs(
pp_data.calc_sp(noise_audio, fs, ham_win, n_window, n_overlap))
db = -5.
gt_mask = (np.sign(20 * np.log10(event_sp / noise_sp) - db) +
1.) / 2. # (n_time, n_freq)
fig, axs = plt.subplots(4, 4, sharex=True)
for i2 in xrange(16):
ind_gt_mask = gt_mask * sed_y[idx, :, i2][:, None]
axs[i2 / 4, i2 % 4].matshow(ind_gt_mask.T,
origin='lower',
aspect='auto',
cmap='jet')
# axs[i2/4, i2%4].set_title(events[i2])
axs[i2 / 4, i2 % 4].xaxis.set_ticks([])
axs[i2 / 4, i2 % 4].yaxis.set_ticks([])
axs[i2 / 4, i2 % 4].set_xlabel('time')
axs[i2 / 4, i2 % 4].set_ylabel('FFT freq. bin')
plt.show()
for filename in ["tmp01", "tmp02", "tmp03"]:
# Plot up sampled seg masks.
preds_dir = os.path.join(workspace, "preds", filename,
"n_events=%d" % n_events, "fold=%d" % te_fold,
"snr=%d" % snr)
at_probs_list, seg_masks_list = [], []
bgn_iter, fin_iter, interval = 2000, 3001, 200
for iter in xrange(bgn_iter, fin_iter, interval):
seg_masks_path = os.path.join(preds_dir, "md%d_iters" % iter,
"seg_masks.p")
seg_masks = cPickle.load(open(seg_masks_path, 'rb'))
seg_masks_list.append(seg_masks)
seg_masks = np.mean(seg_masks_list,
axis=0) # (n_clips, n_classes, n_time, n_freq)
print(at_y[idx])
melW = librosa.filters.mel(sr=fs,
n_fft=cfg.n_window,
n_mels=64,
fmin=0.,
fmax=fs / 2)
inverse_melW = get_inverse_W(melW)
spec_masks = np.dot(seg_masks[idx],
inverse_melW) # (n_classes, n_time, 513)
fig, axs = plt.subplots(4, 4, sharex=True)
for i2 in xrange(16):
axs[i2 / 4, i2 % 4].matshow(spec_masks[i2].T,
origin='lower',
aspect='auto',
vmin=0,
vmax=1,
cmap='jet')
# axs[i2/4, i2%4].set_title(events[i2])
axs[i2 / 4, i2 % 4].xaxis.set_ticks([])
axs[i2 / 4, i2 % 4].yaxis.set_ticks([])
axs[i2 / 4, i2 % 4].set_xlabel('time')
axs[i2 / 4, i2 % 4].set_ylabel('FFT freq. bin')
fig.suptitle(filename)
plt.show()
# Plot SED probs.
sed_probs = np.mean(seg_masks[idx], axis=-1) # (n_classes, n_time)
fig, axs = plt.subplots(4, 4, sharex=False)
for i2 in xrange(16):
axs[i2 / 4, i2 % 4].set_visible(False)
axs[0, 0].matshow(sed_probs,
origin='lower',
aspect='auto',
vmin=0,
vmax=1,
cmap='jet')
# axs[0, 0].xaxis.set_ticks([0, 60, 120, 180, 239])
# axs[0, 0].xaxis.tick_bottom()
# axs[0, 0].xaxis.set_ticklabels(np.arange(0, 10.1, 2.5))
axs[0, 0].xaxis.set_ticks([])
# axs[0, 0].set_xlabel('time (s)')
axs[0, 0].yaxis.set_ticks(xrange(len(events)))
axs[0, 0].yaxis.set_ticklabels(events)
for tick in axs[0, 0].yaxis.get_major_ticks():
tick.label.set_fontsize(8)
axs[0, 0].set_visible(True)
axs[1, 0].matshow(sed_y[idx].T,
origin='lower',
aspect='auto',
vmin=0,
vmax=1,
cmap='jet')
# axs[1, 0].xaxis.set_ticks([])
axs[1, 0].xaxis.set_ticks([0, 60, 120, 180, 239])
axs[1, 0].xaxis.tick_bottom()
axs[1, 0].xaxis.set_ticklabels(np.arange(0, 10.1, 2.5))
axs[1, 0].set_xlabel('time (s)')
axs[1, 0].yaxis.set_ticks(xrange(len(events)))
axs[1, 0].yaxis.set_ticklabels(events)
for tick in axs[1, 0].yaxis.get_major_ticks():
tick.label.set_fontsize(8)
axs[1, 0].set_visible(True)
fig.suptitle(filename)
plt.show()
def train(args):
cpickle_dir = args.cpickle_dir
workspace = args.workspace
# Path of hdf5 data
bal_train_hdf5_path = os.path.join(cpickle_dir, "bal_train.h5")
unbal_train_hdf5_path = os.path.join(cpickle_dir, "unbal_train.h5")
eval_hdf5_path = os.path.join(cpickle_dir, "eval.h5")
# Load data
t1 = time.time()
(tr_x1, tr_y1, tr_id_list1) = pp_data.load_data(bal_train_hdf5_path)
(tr_x2, tr_y2, tr_id_list2) = pp_data.load_data(unbal_train_hdf5_path)
tr_x = np.concatenate((tr_x1, tr_x2))
tr_y = np.concatenate((tr_y1, tr_y2))
tr_id_list = tr_id_list1 + tr_id_list2
(te_x, te_y, te_id_list) = pp_data.load_data(eval_hdf5_path)
logging.info("Loading data time: %s s" % (time.time() - t1))
logging.info(tr_x1.shape, tr_x2.shape)
logging.info("tr_x.shape: %s" % (tr_x.shape, ))
(_, n_time, n_freq) = tr_x.shape
# Build model
n_hid = 500
n_out = tr_y.shape[1]
lay_in = InputLayer(in_shape=(n_time, n_freq))
a = Dense(n_out=n_hid, act='relu')(lay_in)
a = Dropout(p_drop=0.2)(a)
a = Dense(n_out=n_hid, act='relu')(a)
a = Dropout(p_drop=0.2)(a)
a = Dense(n_out=n_hid, act='relu')(a)
a = Dropout(p_drop=0.2)(a)
cla = Dense(n_out=n_out, act='sigmoid', name='cla')(a)
att = Dense(n_out=n_out, act='softmax', name='att')(a)
# Attention
lay_out = Lambda(_attention)([cla, att])
# Compile model
md = Model(in_layers=[lay_in], out_layers=[lay_out])
md.compile()
md.summary(is_logging=True)
# Save model every several iterations
call_freq = 1000
dump_fd = os.path.join(workspace, "models", pp_data.get_filename(__file__))
pp_data.create_folder(dump_fd)
save_model = SaveModel(dump_fd=dump_fd,
call_freq=call_freq,
type='iter',
is_logging=True)
# Callbacks function
callbacks = [save_model]
batch_size = 500
tr_gen = RatioDataGenerator(batch_size=batch_size, type='train')
# Optimization method
optimizer = Adam(lr=args.lr)
# Train
stat_dir = os.path.join(workspace, "stats", pp_data.get_filename(__file__))
pp_data.create_folder(stat_dir)
prob_dir = os.path.join(workspace, "probs", pp_data.get_filename(__file__))
pp_data.create_folder(prob_dir)
tr_time = time.time()
for (tr_batch_x, tr_batch_y) in tr_gen.generate(xs=[tr_x], ys=[tr_y]):
# Compute stats every several interations
if md.iter_ % call_freq == 0:
# Stats of evaluation dataset
t1 = time.time()
te_err = eval(md=md,
x=te_x,
y=te_y,
out_dir=os.path.join(stat_dir, "test"),
out_probs_dir=os.path.join(prob_dir, "test"))
logging.info("Evaluate test time: %s" % (time.time() - t1, ))
# Stats of training dataset
t1 = time.time()
tr_bal_err = eval(md=md,
x=tr_x1,
y=tr_y1,
out_dir=os.path.join(stat_dir, "train_bal"),
out_probs_dir=None)
logging.info("Evaluate tr_bal time: %s" % (time.time() - t1, ))
# Update params
(tr_batch_x,
tr_batch_y) = pp_data.transform_data(tr_batch_x, tr_batch_y)
md.train_on_batch(batch_x=tr_batch_x,
batch_y=tr_batch_y,
loss_func='binary_crossentropy',
optimizer=optimizer,
callbacks=callbacks)
# Stop training when maximum iteration achieves
if md.iter_ == call_freq * 31:
break
from datetime import datetime
import os
import tensorflow as tf
from star_rnn import STARCell
from prepare_data import load_data
BATCH_SIZE = 200
EPOCHS = 30
RNN_UNITS = 32
NUM_LAYERS = 2
DROPOUT = 0.1
x_train, y_train, x_valid, y_valid, x_test, y_test = load_data('add',
seq_len=200)
with tf.device('cpu'):
x_train = tf.constant(x_train, dtype=tf.float32)
y_train = tf.constant(y_train, dtype=tf.float32)
print("X train: ", x_train.shape, "Y train: ", y_train.shape)
x_valid = tf.constant(x_valid, dtype=tf.float32)
y_valid = tf.constant(y_valid, dtype=tf.float32)
print("X val: ", x_valid.shape, "Y val: ", y_valid.shape)
x_test = tf.constant(x_test, dtype=tf.float32)
y_test = tf.constant(y_test, dtype=tf.float32)
print("X test: ", x_test.shape, "Y test: ", y_test.shape)
print()
from models import LeNet, AlexNet, VGG13, ResNet34, TestNet
from keras.models import load_model
from keras import optimizers
from prepare_data import load_data
from utils import CLASS_NUM, IMG_SIZE
import os
train_X, test_X, train_y, test_y = load_data(class_num=CLASS_NUM,
img_size=IMG_SIZE)
if not os.path.exists('autogta.h5'):
autogta = AlexNet(train_X[0].shape)
autogta.compile(optimizer='adam',
loss='categorical_crossentropy',
metrics=['accuracy'])
autogta.fit(x=train_X, y=train_y, epochs=10, batch_size=16)
autogta.save('autogta.h5')
else:
autogta = load_model('autogta.h5')
loss, accu = autogta.evaluate(x=test_X, y=test_y)
print('loss\t{}\naccuracy\t{}'.format(loss, accu))
sequence, clusters = prepare_data.new_build_location_voc(
newsequence, locations)
top_500 = prepare_data.pop_n(sequence, config.num_sample)
total_recall_5 = 0.0
total_f1_5 = 0.0
total_recall_10 = 0.0
total_f1_10 = 0.0
total_user = len(sequence_user)
config.user_size = total_user
eval_config.user_size = total_user
train_set = (sequence, sequence_user, sequence_time, sequence_distance)
final_train_set, final_test_set, final_negative_samples, vocabulary_distances = prepare_data.load_data(
train_set, locations, config.num_sample, clusters, top_500, 0.1, True)
new_train_set_sequence, new_train_set_time, new_train_set_distance, mask_train_x, train_set_user = final_train_set
negative_samples, negative_time_sample, negative_distance_samples = final_negative_samples
config.vocab_size = locations.shape[1]
config.num_steps = new_train_set_sequence[0].shape[1]
if new_train_set_sequence[0].shape[0] <= 10:
config.batch_size = 1
else:
if new_train_set_sequence[0].shape[0] <= 50:
config.batch_size = 2
else:
if new_train_set_sequence[0].shape[0] <= 100:
config.batch_size = 5
else:
from hat.layers.pool import MaxPool2D
from hat.callbacks import SaveModel, Validation
from hat.preprocessing import sparse_to_categorical
from hat.optimizers import Adam
import hat.backend as K
from prepare_data import load_data
# resize data for fit into CNN. size: (batch_num*color_maps*height*weight)
def reshapeX(X):
N = len(X)
return X.reshape((N, 1, 28, 28))
### load & prepare data
tr_X, tr_y, va_X, va_y, te_X, te_y = load_data()
tr_X, va_X, te_X = reshapeX(tr_X), reshapeX(va_X), reshapeX(te_X)
# init params
n_in = 784
n_hid = 500
n_out = 10
# sparse label to 1 of K categorical label
tr_y = sparse_to_categorical(tr_y, n_out)
va_y = sparse_to_categorical(va_y, n_out)
te_y = sparse_to_categorical(te_y, n_out)
### Build model
act = 'relu'
seq = Sequential()
def separate(args, bgn_iter, fin_iter, interval):
workspace = cfg.workspace
events = cfg.events
te_fold = cfg.te_fold
n_events = args.n_events
n_window = cfg.n_window
n_overlap = cfg.n_overlap
fs = cfg.sample_rate
clip_duration = cfg.clip_duration
snr = args.snr
# Load ground truth data.
feature_dir = os.path.join(workspace, "features", "logmel",
"n_events=%d" % n_events)
yaml_dir = os.path.join(workspace, "mixed_audio", "n_events=%d" % n_events)
(tr_x, tr_at_y, tr_sed_y, tr_na_list, te_x, te_at_y, te_sed_y,
te_na_list) = pp_data.load_data(feature_dir=feature_dir,
yaml_dir=yaml_dir,
te_fold=te_fold,
snr=snr,
is_scale=is_scale)
at_y = te_at_y
sed_y = te_sed_y
na_list = te_na_list
# Load and sum
preds_dir = os.path.join(workspace, "preds",
pp_data.get_filename(__file__),
"n_events=%d" % n_events, "fold=%d" % te_fold,
"snr=%d" % snr)
at_probs_list, seg_masks_list = [], []
for iter in xrange(bgn_iter, fin_iter, interval):
seg_masks_path = os.path.join(preds_dir, "md%d_iters" % iter,
"seg_masks.p")
seg_masks = cPickle.load(open(seg_masks_path, 'rb'))
seg_masks_list.append(seg_masks)
seg_masks = np.mean(seg_masks_list,
axis=0) # (n_clips, n_classes, n_time, n_freq)
print(seg_masks.shape)
#
audio_dir = os.path.join(workspace, "mixed_audio",
"n_events=%d" % n_events)
sep_dir = os.path.join(workspace, "sep_audio",
pp_data.get_filename(__file__),
"n_events=%d" % n_events, "fold=%d" % te_fold,
"snr=%d" % snr)
pp_data.create_folder(sep_dir)
ham_win = np.hamming(n_window)
recover_scaler = np.sqrt((ham_win**2).sum())
melW = librosa.filters.mel(sr=fs,
n_fft=n_window,
n_mels=64,
fmin=0.,
fmax=fs / 2)
inverse_melW = get_inverse_W(melW) # (64, 513)
seg_stats = {}
for e in events:
seg_stats[e] = {
'fvalue': [],
'auc': [],
'iou': [],
'hit': [],
'fa': [],
'tp': [],
'fn': [],
'fp': []
}
cnt = 0
for (i1, na) in enumerate(na_list):
bare_na = os.path.splitext(na)[0]
audio_path = os.path.join(audio_dir, "%s.wav" % bare_na)
(stereo_audio, _) = pp_data.read_stereo_audio(audio_path, target_fs=fs)
event_audio = stereo_audio[:, 0]
noise_audio = stereo_audio[:, 1]
mixed_audio = event_audio + noise_audio
mixed_cmplx_sp = pp_data.calc_sp(mixed_audio, fs, ham_win, n_window,
n_overlap)
mixed_sp = np.abs(mixed_cmplx_sp)
event_sp = np.abs(
pp_data.calc_sp(event_audio, fs, ham_win, n_window, n_overlap))
noise_sp = np.abs(
pp_data.calc_sp(noise_audio, fs, ham_win, n_window, n_overlap))
sm = seg_masks[i1] # (n_classes, n_time, n_freq)
sm_upsampled = np.dot(sm, inverse_melW) # (n_classes, n_time, 513)
print(na)
# Write out separated events.
for j1 in xrange(len(events)):
if at_y[i1][j1] == 1:
(fvalue, auc, iou, tp, fn, fp) = fvalue_iou(sm_upsampled[j1],
event_sp,
noise_sp,
sed_y[i1, :, j1],
seg_thres,
inside_only=True)
(hit, fa) = hit_fa(sm_upsampled[j1],
event_sp,
noise_sp,
sed_y[i1, :, j1],
seg_thres,
inside_only=True)
seg_stats[events[j1]]['fvalue'].append(fvalue)
seg_stats[events[j1]]['auc'].append(auc)
seg_stats[events[j1]]['iou'].append(iou)
seg_stats[events[j1]]['hit'].append(hit)
seg_stats[events[j1]]['fa'].append(fa)
seg_stats[events[j1]]['tp'].append(tp)
seg_stats[events[j1]]['fn'].append(fn)
seg_stats[events[j1]]['fp'].append(fp)
sep_event_sp = sm_upsampled[j1] * mixed_sp
sep_event_s = spectrogram_to_wave.recover_wav(
sep_event_sp,
mixed_cmplx_sp,
n_overlap=n_overlap,
winfunc=np.hamming,
wav_len=int(fs * clip_duration))
sep_event_s *= recover_scaler
out_event_audio_path = os.path.join(
sep_dir, "%s.%s.wav" % (bare_na, events[j1]))
pp_data.write_audio(out_event_audio_path, sep_event_s, fs)
# Write out separated noise.
sm_noise_upsampled = np.clip(1. - np.sum(sm_upsampled, axis=0), 0., 1.)
sep_noise_sp = sm_noise_upsampled * mixed_sp
sep_noise_s = spectrogram_to_wave.recover_wav(sep_noise_sp,
mixed_cmplx_sp,
n_overlap=n_overlap,
winfunc=np.hamming,
wav_len=int(
fs * clip_duration))
sep_noise_s *= recover_scaler
out_noise_audio_path = os.path.join(sep_dir, "%s.noise.wav" % bare_na)
pp_data.write_audio(out_noise_audio_path, sep_noise_s, fs)
cnt += 1
# if cnt == 2: break
fvalues, aucs, ious, hits, fas, tps, fns, fps = [], [], [], [], [], [], [], []
for e in events:
fvalues.append(np.mean(seg_stats[e]['fvalue']))
ious.append(np.mean(seg_stats[e]['iou']))
aucs.append(np.mean(seg_stats[e]['auc']))
hits.append(np.mean(seg_stats[e]['hit']))
fas.append(np.mean(seg_stats[e]['fa']))
tps.append(np.mean(seg_stats[e]['tp']))
fns.append(np.mean(seg_stats[e]['fn']))
fps.append(np.mean(seg_stats[e]['fp']))
logging.info("%sfvalue\tauc\tiou\tHit\tFa\tHit-Fa\tTP\tFN\tFP" %
("".ljust(16)))
logging.info(
"%s*%.3f\t*%.3f\t*%.3f\t*%.3f\t*%.3f\t*%.3f\t*%.3f\t*%.3f\t*%.3f" %
("*Avg. of each".ljust(16), np.mean(fvalues), np.mean(aucs),
np.mean(ious), np.mean(hits), np.mean(fas), np.mean(hits) -
np.mean(fas), np.mean(tps), np.mean(fns), np.mean(fps)))
for i1 in xrange(len(events)):
logging.info(
"%s%.3f\t%.3f\t%.3f\t%.3f\t%.3f\t%.3f\t%.3f\t%.3f\t%.3f" %
(events[i1].ljust(16), fvalues[i1], aucs[i1], ious[i1], hits[i1],
fas[i1], hits[i1] - fas[i1], tps[i1], fns[i1], fps[i1]))
# -*- coding: utf-8 -*-
"""
Created on Sun Jul 19 12:07:37 2020
@author: lwang
"""
import pickle
from prepare_data import load_data
#%% previously saved dict data
X_train, X_test, Y_train, Y_test = load_data()
#%% save dataset into a dic for later use
Acc_6class_UCI={
'X_train': X_train,
'X_test': X_test,
'Y_train':Y_train,
'Y_test':Y_test,
}
a_file = open("Acc_6class_UCI.pkl", "wb")
pickle.dump(Acc_6class_UCI, a_file)
a_file.close()
#%% read saved UCI Acceleromter (Acc) data
# a_file = open("Acc_6class_UCI.pkl", "rb")
# data = pickle.load(a_file)
# a_file.close()
from hat.callbacks import SaveModel, Validation
from hat.preprocessing import sparse_to_categorical
from hat.optimizers import SGD, Rmsprop, Adam
import hat.backend as K
import config as cfg
import prepare_data as pp_data
# reshape image from N*1024 to N*3*32*32
def reshape_img_for_cnn(x):
N = x.shape[0]
return np.reshape(x, (N, 3, 32, 32))
# load data
tr_X, tr_y, te_X, te_y = pp_data.load_data()
# normalize data
scaler = pp_data.get_scaler(tr_X)
tr_X = pp_data.transform(tr_X, scaler)
te_X = pp_data.transform(te_X, scaler)
# reshape X to shape: (n_pictures, n_fmaps=3, n_row=32, n_col=32)
tr_X = reshape_img_for_cnn(tr_X)
te_X = reshape_img_for_cnn(te_X)
# init params
n_out = 10
# sparse label to 1-of-K categorical label
tr_y = sparse_to_categorical(tr_y, n_out)
def evaluate_lenet5(learning_rate=0.01, n_epochs=20,
nkerns=[20, 50], batch_size=100):
""" Demonstrates lenet on MNIST dataset
:type learning_rate: float
:param learning_rate: learning rate used (factor for the stochastic
gradient)
:type n_epochs: int
:param n_epochs: maximal number of epochs to run the optimizer
:type dataset: string
:param dataset: path to the dataset used for training /testing (MNIST here)
:type nkerns: list of ints
:param nkerns: number of kernels on each layer
"""
rng = numpy.random.RandomState(23455)
datasets = load_data()
train_set_x, train_set_y = datasets[0]
valid_set_x, valid_set_y = datasets[1]
test_set_x, test_set_y = datasets[2]
# compute number of minibatches for training, validation and testing
n_train_batches = train_set_x.get_value(borrow=True).shape[0]
n_valid_batches = valid_set_x.get_value(borrow=True).shape[0]
n_test_batches = test_set_x.get_value(borrow=True).shape[0]
n_train_batches //= batch_size
n_valid_batches //= batch_size
n_test_batches //= batch_size
# allocate symbolic variables for the data
index = T.lscalar() # index to a [mini]batch
# start-snippet-1
x = T.matrix('x') # the data is presented as rasterized images
y = T.ivector('y') # the labels are presented as 1D vector of
# [int] labels
######################
# BUILD ACTUAL MODEL #
######################
print('... building the model')
# Reshape matrix of rasterized images of shape (batch_size, 28 * 28)
# to a 4D tensor, compatible with our LeNetConvPoolLayer
# (28, 28) is the size of MNIST images.
layer0_input = x.reshape((batch_size, 1, 32, 32))
# Construct the first convolutional pooling layer:
# filtering reduces the image size to (28-5+1 , 28-5+1) = (24, 24)
# maxpooling reduces this further to (24/2, 24/2) = (12, 12)
# 4D output tensor is thus of shape (batch_size, nkerns[0], 12, 12)
layer0 = LeNetConvPoolLayer(
rng,
input=layer0_input,
image_shape=(batch_size, 1, 32, 32),
filter_shape=(nkerns[0], 1, 5, 5),
poolsize=(2, 2)
)
# Construct the second convolutional pooling layer
# filtering reduces the image size to (12-5+1, 12-5+1) = (8, 8)
# maxpooling reduces this further to (8/2, 8/2) = (4, 4)
# 4D output tensor is thus of shape (batch_size, nkerns[1], 4, 4)
layer1 = LeNetConvPoolLayer(
rng,
input=layer0.output,
image_shape=(batch_size, nkerns[0], 14, 14),
filter_shape=(nkerns[1], nkerns[0], 5, 5),
poolsize=(2, 2)
)
# the HiddenLayer being fully-connected, it operates on 2D matrices of
# shape (batch_size, num_pixels) (i.e matrix of rasterized images).
# This will generate a matrix of shape (batch_size, nkerns[1] * 4 * 4),
# or (500, 50 * 4 * 4) = (500, 800) with the default values.
layer2_input = layer1.output.flatten(2)
# construct a fully-connected sigmoidal layer
layer2 = HiddenLayer(
rng,
input=layer2_input,
n_in=nkerns[1] * 5 * 5,
n_out=500,
activation=T.tanh
)
# classify the values of the fully-connected sigmoidal layer
layer3 = LogisticRegression(input=layer2.output, n_in=500, n_out=2)
# the cost we minimize during training is the NLL of the model
cost = layer3.negative_log_likelihood(y)
# create a function to compute the mistakes that are made by the model
test_model = theano.function(
[index],
layer3.errors(y),
givens={
x: test_set_x[index * batch_size: (index + 1) * batch_size],
y: test_set_y[index * batch_size: (index + 1) * batch_size]
}
)
validate_model = theano.function(
[index],
layer3.errors(y),
givens={
x: valid_set_x[index * batch_size: (index + 1) * batch_size],
y: valid_set_y[index * batch_size: (index + 1) * batch_size]
}
)
# create a list of all model parameters to be fit by gradient descent
params = layer3.params + layer2.params + layer1.params + layer0.params
# create a list of gradients for all model parameters
grads = T.grad(cost, params)
# train_model is a function that updates the model parameters by
# SGD Since this model has many parameters, it would be tedious to
# manually create an update rule for each model parameter. We thus
# create the updates list by automatically looping over all
# (params[i], grads[i]) pairs.
updates = [
(param_i, param_i - learning_rate * grad_i)
for param_i, grad_i in zip(params, grads)
]
train_model = theano.function(
[index],
cost,
updates=updates,
givens={
x: train_set_x[index * batch_size: (index + 1) * batch_size],
y: train_set_y[index * batch_size: (index + 1) * batch_size]
}
)
# end-snippet-1
###############
# TRAIN MODEL #
###############
print('... training')
# early-stopping parameters
patience = 25000 # look as this many examples regardless
patience_increase = 2 # wait this much longer when a new best is
# found
improvement_threshold = 0.995 # a relative improvement of this much is
# considered significant
validation_frequency = min(n_train_batches, patience // 2)
# go through this many
# minibatche before checking the network
# on the validation set; in this case we
# check every epoch
best_validation_loss = numpy.inf
best_iter = 0
test_score = 0.
start_time = timeit.default_timer()
epoch = 0
done_looping = False
while (epoch < n_epochs) and (not done_looping):
epoch = epoch + 1
for minibatch_index in range(n_train_batches):
iter = (epoch - 1) * n_train_batches + minibatch_index
if iter % 100 == 0:
print('training @ iter = ', iter)
cost_ij = train_model(minibatch_index)
if (iter + 1) % validation_frequency == 0:
# compute zero-one loss on validation set
validation_losses = [validate_model(i) for i
in range(n_valid_batches)]
this_validation_loss = numpy.mean(validation_losses)
print('epoch %i, minibatch %i/%i, validation error %f %%' %
(epoch, minibatch_index + 1, n_train_batches,
this_validation_loss * 100.))
# if we got the best validation score until now
if this_validation_loss < best_validation_loss:
#improve patience if loss improvement is good enough
if this_validation_loss < best_validation_loss * \
improvement_threshold:
patience = max(patience, iter * patience_increase)
# save best validation score and iteration number
best_validation_loss = this_validation_loss
best_iter = iter
# test it on the test set
test_losses = [
test_model(i)
for i in range(n_test_batches)
]
test_score = numpy.mean(test_losses)
print((' epoch %i, minibatch %i/%i, test error of '
'best model %f %%') %
(epoch, minibatch_index + 1, n_train_batches,
test_score * 100.))
if patience <= iter:
done_looping = True
break
end_time = timeit.default_timer()
print('Optimization complete.')
print('Best validation score of %f %% obtained at iteration %i, '
'with test performance %f %%' %
(best_validation_loss * 100., best_iter + 1, test_score * 100.))
print(('The code for file ' +
os.path.split(__file__)[1] +
' ran for %.2fm' % ((end_time - start_time) / 60.)), file=sys.stderr)
def train(self, parser):
"""
training operation
argument of this function are given by functions in prepare_data.py
Parameters
----------
parser:
the paser that has some options
"""
epoch = parser.epoch
l2 = parser.l2
batch_size = parser.batch_size
train_val_rate = parser.train_rate
output = self.UNet(l2_reg=l2, is_training=self.is_training)
loss = tf.reduce_mean(
tf.nn.softmax_cross_entropy_with_logits_v2(labels=self.y,
logits=output))
update_ops = tf.get_collection(tf.GraphKeys.UPDATE_OPS)
with tf.control_dependencies(update_ops):
train_ops = tf.train.AdamOptimizer(
parser.learning_rate).minimize(loss)
init = tf.global_variables_initializer()
saver = tf.train.Saver(max_to_keep=100)
all_train, all_val = prepare_data.load_data(
self.IMAGE_DIR,
self.SEGMENTED_DIR,
n_class=2,
train_val_rate=train_val_rate)
with tf.Session() as sess:
init.run()
for e in range(epoch):
data = prepare_data.generate_data(*all_train, batch_size)
val_data = prepare_data.generate_data(*all_val,
len(all_val[0]))
for Input, Teacher in data:
sess.run(train_ops,
feed_dict={
self.X: Input,
self.y: Teacher,
self.is_training: True
})
ls = loss.eval(feed_dict={
self.X: Input,
self.y: Teacher,
self.is_training: None
})
for val_Input, val_Teacher in val_data:
val_loss = loss.eval(
feed_dict={
self.X: val_Input,
self.y: val_Teacher,
self.is_training: None
})
print(f'epoch #{e + 1}, loss = {ls}, val loss = {val_loss}')
if e % 100 == 0:
saver.save(sess, f"./params/model_{e + 1}epochs.ckpt")
self.validation(sess, output)
if 'pubmed' in dataset:
task = 'pubmed'
elif 'movie' in dataset:
task = 'movie'
dataset = '../data/' + dataset + '.pkl.gz'
modelType = args['-model']
n_layers, dim = args['-nlayers'], args['-dim']
shared = args['-shared']
saving = args['-saving']
nmean = args['-nmean']
yidx = args['-y']
if 'dr' in args['-reg']: dropout = True
else: dropout = False
feats, labels, rel_list, rel_mask, train_ids, valid_ids, test_ids = prepare_data.load_data(dataset)
print len(train_ids), len(valid_ids), len(test_ids)
labels = labels.astype('int64')
if task == 'movie':
labels = labels[:, yidx : yidx+1]
def remove(y, not_ids):
new_y = numpy.copy(y)
for ids in not_ids:
new_y[ids] = -1
return new_y
if type == 'software':
train_y = remove(labels, [test_ids])
valid_y = remove(labels, [train_ids])
else:
def train():
# load data
batch_size = 128
tr_X, tr_y, va_X, va_y, te_X, te_y = pp_data.load_data()
n_batches = int(tr_X.shape[0] / batch_size)
# normalize data between [-1,1]
tr_X = (tr_X - 0.5) * 2
tr_X = tr_X.reshape((50000, 1, 28, 28))
print tr_X.shape
# generator
a0 = InputLayer(100)
a1 = Dense(128 * 7 * 7, act='linear')(a0)
a1 = BN(axis=0)(a1)
a1 = Reshape(out_shape=(128, 7, 7))(a1)
a1 = Convolution2D(64, 5, 5, act='linear', border_mode=(2, 2))(a1)
a1 = BN(axis=(0, 2, 3))(a1)
a1 = Activation('leaky_relu')(a1)
a1 = UpSampling2D(size=(2, 2))(a1)
a1 = Convolution2D(32, 5, 5, act='linear', border_mode=(2, 2))(a1)
a1 = BN(axis=(0, 2, 3))(a1)
a1 = Activation('leaky_relu')(a1)
a1 = UpSampling2D(size=(2, 2))(a1)
a8 = Convolution2D(1, 5, 5, act='tanh', border_mode=(2, 2), name='a8')(a1)
g = Model([a0], [a8])
g.compile()
g.summary()
# discriminator
b0 = InputLayer((1, 28, 28), name='b0')
b1 = Convolution2D(64, 5, 5, act='relu', border_mode=(0, 0), name='b1')(b0)
b1 = MaxPooling2D(pool_size=(2, 2))(b1)
b1 = Convolution2D(128, 5, 5, act='relu', border_mode=(0, 0))(b1)
b1 = MaxPooling2D(pool_size=(2, 2))(b1)
b1 = Flatten()(b1)
b8 = Dense(1, act='sigmoid')(b1)
d = Model([b0], [b8])
d.compile()
d.summary()
# discriminator on generator
d_on_g = Model()
d.set_trainability(False)
d_on_g.add_models([g, d])
d.set_trainability(True)
d_on_g.joint_models('a8', 'b0')
d_on_g.compile()
d_on_g.summary()
# optimizer
opt_d = Adam(1e-4)
opt_g = Adam(1e-4)
# optimization function
f_train_d = d.get_optimization_func(target_dims=[2],
loss_func='binary_crossentropy',
optimizer=opt_d,
clip=None)
f_train_g = d_on_g.get_optimization_func(target_dims=[2],
loss_func='binary_crossentropy',
optimizer=opt_g,
clip=None)
noise = np.zeros((batch_size, 100))
for epoch in range(100):
print epoch
for index in range(n_batches):
# concatenate generated img and real image to train discriminator.
noise = np.random.uniform(-1, 1, (batch_size, 100))
batch_x = tr_X[index * batch_size:(index + 1) * batch_size]
batch_gx = g.predict(noise)
batch_x_all = np.concatenate((batch_x, batch_gx))
# assign real img label as 1, generated img label as 0
batch_y_all = np.array([1] * batch_size + [0] * batch_size)
batch_y_all = batch_y_all.reshape((batch_y_all.shape[0], 1))
# save out generated img
if index % 50 == 0:
image = pp_data.combine_images(batch_gx)
image = image * 127.5 + 127.5
if not os.path.exists("img_dcgan"): os.makedirs("img_dcgan")
Image.fromarray(image.astype(
np.uint8)).save("img_dcgan/" + str(epoch) + "_" +
str(index) + ".png")
# train discriminator
d_loss = d.train_on_batch(f_train_d, batch_x_all, batch_y_all)
# assign generate img label as 1, so as to deceive discriminator
noise = np.random.uniform(-1, 1, (batch_size, 100))
batch_y_all = np.array([1] * batch_size)
batch_y_all = batch_y_all.reshape((batch_y_all.shape[0], 1))
# train generator
g_loss = d_on_g.train_on_batch(f_train_g, noise, batch_y_all)
print index, "d_loss:", d_loss, "\tg_loss:", g_loss
def test_wrapper(test_agent, args):
data_list = load_data(args.data)
x_test = data_list[4]
y_test = data_list[5]
test_agent.test(x_test, y_test, 'models/' + args.name + '/')
def train(args):
workspace = cfg.workspace
te_fold = cfg.te_fold
n_events = args.n_events
snr = args.snr
feature_dir = os.path.join(workspace, "features", "logmel",
"n_events=%d" % n_events)
yaml_dir = os.path.join(workspace, "mixed_audio", "n_events=%d" % n_events)
(tr_x, tr_at_y, tr_sed_y, tr_na_list, te_x, te_at_y, te_sed_y,
te_na_list) = pp_data.load_data(feature_dir=feature_dir,
yaml_dir=yaml_dir,
te_fold=te_fold,
snr=snr,
is_scale=is_scale)
print(tr_x.shape, tr_at_y.shape)
print(te_x.shape, te_at_y.shape)
(_, n_time, n_freq) = tr_x.shape
n_out = len(cfg.events)
if False:
for e in tr_x:
plt.matshow(e.T, origin='lower', aspect='auto')
plt.show()
# Build model.
lay_in = InputLayer(in_shape=(n_time, n_freq))
a = Reshape((1, n_time, n_freq))(lay_in)
a = Conv2D(n_outfmaps=64,
n_row=3,
n_col=5,
act='linear',
strides=(1, 1),
border_mode=(1, 2))(a)
a = BN(axis=(0, 2, 3))(a)
a = Activation('relu')(a)
a = Conv2D(n_outfmaps=64,
n_row=3,
n_col=5,
act='linear',
strides=(1, 1),
border_mode=(1, 2))(a)
a = BN(axis=(0, 2, 3))(a)
a = Activation('relu')(a)
a = Dropout(p_drop=0.2)(a)
a = Conv2D(n_outfmaps=64,
n_row=3,
n_col=5,
act='linear',
strides=(1, 1),
border_mode=(1, 2))(a)
a = BN(axis=(0, 2, 3))(a)
a = Activation('relu')(a)
a = Conv2D(n_outfmaps=64,
n_row=3,
n_col=5,
act='linear',
strides=(1, 1),
border_mode=(1, 2))(a)
a = BN(axis=(0, 2, 3))(a)
a = Activation('relu')(a)
a = Dropout(p_drop=0.2)(a)
a = Conv2D(n_outfmaps=64,
n_row=3,
n_col=5,
act='linear',
strides=(1, 1),
border_mode=(1, 2))(a)
a = BN(axis=(0, 2, 3))(a)
a = Activation('relu')(a)
a = Conv2D(n_outfmaps=64,
n_row=3,
n_col=5,
act='linear',
strides=(1, 1),
border_mode=(1, 2))(a)
a = BN(axis=(0, 2, 3))(a)
a = Activation('relu')(a)
a = Dropout(p_drop=0.2)(a)
a = Conv2D(n_outfmaps=n_out,
n_row=1,
n_col=1,
act='sigmoid',
border_mode=(0, 0),
name='seg_masks')(a)
a8 = Lambda(_global_avg_pooling, name='a8')(a)
md = Model([lay_in], [a8])
md.compile()
md.summary(is_logging=True)
# Callbacks.
md_dir = os.path.join(workspace, "models", pp_data.get_filename(__file__),
"n_events=%d" % n_events, "fold=%d" % te_fold,
"snr=%d" % snr)
pp_data.create_folder(md_dir)
save_model = SaveModel(md_dir, call_freq=50, type='iter', is_logging=True)
validation = Validation(te_x=te_x,
te_y=te_at_y,
batch_size=50,
call_freq=50,
metrics=['binary_crossentropy'],
dump_path=None,
is_logging=True)
callbacks = [save_model, validation]
observe_nodes = [md.find_layer('seg_masks').output_]
f_forward = md.get_observe_forward_func(observe_nodes)
# Generator.
tr_gen = DataGenerator(batch_size=32, type='train')
eva_gen = DataGenerator2(batch_size=32, type='test')
# Train.
loss_ary = []
t1 = time.time()
optimizer = Adam(1e-3)
for (batch_x, batch_y) in tr_gen.generate(xs=[tr_x], ys=[tr_at_y]):
if md.iter_ % 50 == 0:
logging.info("iter: %d tr_loss: %f time: %s" % (
md.iter_,
np.mean(loss_ary),
time.time() - t1,
))
t1 = time.time()
loss_ary = []
# if md.iter_ % 200 == 0:
# write_out_at_sed(md, eva_gen, f_forward, te_x, te_at_y, te_sed_y, n_events, snr, te_fold)
if md.iter_ == 5001:
break
loss = md.train_on_batch(batch_x,
batch_y,
loss_func='binary_crossentropy',
optimizer=optimizer,
callbacks=callbacks)
loss_ary.append(loss)
def evaluate_separation(args):
workspace = cfg.workspace
events = cfg.events
te_fold = cfg.te_fold
n_window = cfg.n_window
n_overlap = cfg.n_overlap
fs = cfg.sample_rate
clip_duration = cfg.clip_duration
n_events = args.n_events
snr = args.snr
# Load ground truth data.
feature_dir = os.path.join(workspace, "features", "logmel",
"n_events=%d" % n_events)
yaml_dir = os.path.join(workspace, "mixed_audio", "n_events=%d" % n_events)
(tr_x, tr_at_y, tr_sed_y, tr_na_list, te_x, te_at_y, te_sed_y,
te_na_list) = pp_data.load_data(feature_dir=feature_dir,
yaml_dir=yaml_dir,
te_fold=te_fold,
snr=snr,
is_scale=is_scale)
at_y = te_at_y
sed_y = te_sed_y
na_list = te_na_list
audio_dir = os.path.join(workspace, "mixed_audio",
"n_events=%d" % n_events)
sep_dir = os.path.join(workspace, "sep_audio",
pp_data.get_filename(__file__),
"n_events=%d" % n_events, "fold=%d" % te_fold,
"snr=%d" % snr)
sep_stats = {}
for e in events:
sep_stats[e] = {'sdr': [], 'sir': [], 'sar': []}
cnt = 0
for (i1, na) in enumerate(na_list):
bare_na = os.path.splitext(na)[0]
gt_audio_path = os.path.join(audio_dir, "%s.wav" % bare_na)
(stereo_audio, _) = pp_data.read_stereo_audio(gt_audio_path,
target_fs=fs)
gt_event_audio = stereo_audio[:, 0]
gt_noise_audio = stereo_audio[:, 1]
print(na)
for j1 in xrange(len(events)):
if at_y[i1][j1] == 1:
sep_event_audio_path = os.path.join(
sep_dir, "%s.%s.wav" % (bare_na, events[j1]))
(sep_event_audio, _) = pp_data.read_audio(sep_event_audio_path,
target_fs=fs)
sep_noise_audio_path = os.path.join(sep_dir,
"%s.noise.wav" % bare_na)
(sep_noise_audio, _) = pp_data.read_audio(sep_noise_audio_path,
target_fs=fs)
ref_array = np.array((gt_event_audio, gt_noise_audio))
est_array = np.array((sep_event_audio, sep_noise_audio))
(sdr, sir, sar) = sdr_sir_sar(ref_array,
est_array,
sed_y[i1, :, j1],
inside_only=True)
print(sdr, sir, sar)
sep_stats[events[j1]]['sdr'].append(sdr)
sep_stats[events[j1]]['sir'].append(sir)
sep_stats[events[j1]]['sar'].append(sar)
cnt += 1
# if cnt == 5: break
print(sep_stats)
sep_stat_path = os.path.join(workspace, "sep_stats",
pp_data.get_filename(__file__),
"n_events=%d" % n_events, "fold=%d" % te_fold,
"snr=%d" % snr, "sep_stat.p")
pp_data.create_folder(os.path.dirname(sep_stat_path))
cPickle.dump(sep_stats, open(sep_stat_path, 'wb'))
import sys
sys.path.insert(0,'../..')
import prepare_data
whole_data_path = '../../../data/combined/whole.txt'
# whole_data = prepare_data.load_whole_data(train_data_path, dev_data_path, test_data_path, wiki_data_path)
whole_data = prepare_data.load_data(whole_data_path)
# convert to lower case
whole_data = prepare_data.to_lower(whole_data)
# remove punctuation
whole_data = prepare_data.remove_punct(whole_data)
def get_vocab(data):
vocab_list = []
for seq in data:
for word in seq[0]:
vocab_list.append(word)
return vocab_list
whole_vocab_list = get_vocab(whole_data)
def write_to_file(file_path, vocab_list):
with open(file_path, 'w', encoding='utf-8') as f:
for word in vocab_list: