def trainer(
X,
dim_word=620, # word vector dimensionality
dim=2400, # the number of GRU units
encoder='gru',
decoder='gru',
max_epochs=5,
dispFreq=1,
decay_c=0.,
grad_clip=5.,
n_words=474000,
maxlen_w=30,
optimizer='adam',
batch_size=64,
saveto='/data/embeddingModel.npz',
dictionary='dictionary.pkl',
saveFreq=1000,
reload_=False):
# Model options
model_options = {}
model_options['dim_word'] = dim_word
model_options['dim'] = dim
model_options['encoder'] = encoder
model_options['decoder'] = decoder
model_options['max_epochs'] = max_epochs
model_options['dispFreq'] = dispFreq
model_options['decay_c'] = decay_c
model_options['grad_clip'] = grad_clip
model_options['n_words'] = n_words
model_options['maxlen_w'] = maxlen_w
model_options['optimizer'] = optimizer
model_options['batch_size'] = batch_size
model_options['saveto'] = saveto
model_options['dictionary'] = dictionary
model_options['saveFreq'] = saveFreq
model_options['reload_'] = reload_
print(model_options)
# reload options
if reload_ and os.path.exists(saveto):
print('reloading...' + saveto)
with open('%s.pkl' % saveto, 'rb') as f:
models_options = pkl.load(f)
# load dictionary
print('Loading dictionary...')
worddict = load_dictionary(dictionary)
# Inverse dictionary
word_idict = dict()
for kk, vv in worddict.items():
word_idict[vv] = kk
word_idict[0] = '<eos>'
word_idict[1] = 'UNK'
print('Building model')
params = init_params(model_options)
# reload parameters
if reload_ and os.path.exists(saveto):
params = load_params(saveto, params)
tparams = init_tparams(params)
trng, x, x_mask, y, y_mask, z, z_mask, \
opt_ret, \
cost = \
build_model(tparams, model_options)
inps = [x, x_mask, y, y_mask, z, z_mask]
# before any regularizer
print('Building f_log_probs...')
f_log_probs = theano.function(inps, cost, profile=False)
print('Done')
# weight decay, if applicable
if decay_c > 0.:
decay_c = theano.shared(numpy.float32(decay_c), name='decay_c')
weight_decay = 0.
for kk, vv in tparams.items():
weight_decay += (vv**2).sum()
weight_decay *= decay_c
cost += weight_decay
# after any regularizer
print('Building f_cost...')
f_cost = theano.function(inps, cost, profile=False)
print('Done')
print('Done')
print('Building f_grad...')
grads = tensor.grad(cost, wrt=itemlist(tparams))
f_grad_norm = theano.function(inps, [(g**2).sum() for g in grads],
profile=False)
f_weight_norm = theano.function([],
[(t**2).sum() for k, t in tparams.items()],
profile=False)
if grad_clip > 0.:
g2 = 0.
for g in grads:
g2 += (g**2).sum()
new_grads = []
for g in grads:
new_grads.append(
tensor.switch(g2 > (grad_clip**2),
g / tensor.sqrt(g2) * grad_clip, g))
grads = new_grads
lr = tensor.scalar(name='lr')
print('Building optimizers...', end='')
# (compute gradients), (updates parameters)
f_grad_shared, f_update = eval(optimizer)(lr, tparams, grads, inps, cost)
print('Optimization')
# Each sentence in the minibatch have same length (for encoder)
trainX = homogeneous_data.grouper(X)
train_iter = homogeneous_data.HomogeneousData(trainX,
batch_size=batch_size,
maxlen=maxlen_w)
uidx = 0
lrate = 0.01
for eidx in range(max_epochs):
n_samples = 0
print('Epoch ', eidx)
for x, y, z in train_iter:
n_samples += len(x)
uidx += 1
x, x_mask, y, y_mask, z, z_mask = homogeneous_data.prepare_data(
x, y, z, worddict, maxlen=maxlen_w, n_words=n_words)
if x is None:
print('Minibatch with zero sample under length ', maxlen_w)
uidx -= 1
continue
ud_start = time.time()
cost = f_grad_shared(x, x_mask, y, y_mask, z, z_mask)
f_update(lrate)
ud = time.time() - ud_start
if numpy.isnan(cost) or numpy.isinf(cost):
print('NaN detected')
return 1., 1., 1.
if numpy.mod(uidx, dispFreq) == 0:
print('Epoch ', eidx, 'Update ', uidx, 'Cost ', cost, 'UD ',
ud)
if numpy.mod(uidx, saveFreq) == 0:
print('Saving...', end='')
params = unzip(tparams)
numpy.savez(saveto, history_errs=[], **params)
pkl.dump(model_options, open('%s.pkl' % saveto, 'wb'))
print('Done')
print('Seen %d samples' % n_samples)
def trainer(X,
dim_word=620, # word vector dimensionality
dim=2400, # the number of GRU units
encoder='gru',
num_neg=4,
gamma=1.0,
max_epochs=5,
dispFreq=1,
decay_c=0.,
grad_clip=5.,
n_words=20000,
maxlen_w=30,
optimizer='adam',
batch_size = 64,
saveto='/u/rkiros/research/semhash/models/toy.npz',
dictionary='/ais/gobi3/u/rkiros/bookgen/book_dictionary_large.pkl',
saveFreq=1000,
reload_=False):
# Model options
model_options = {}
model_options['dim_word'] = dim_word
model_options['dim'] = dim
model_options['encoder'] = encoder
model_options['num_neg'] = num_neg
model_options['gamma'] = gamma
model_options['max_epochs'] = max_epochs
model_options['dispFreq'] = dispFreq
model_options['decay_c'] = decay_c
model_options['grad_clip'] = grad_clip
model_options['n_words'] = n_words
model_options['maxlen_w'] = maxlen_w
model_options['optimizer'] = optimizer
model_options['batch_size'] = batch_size
model_options['saveto'] = saveto
model_options['dictionary'] = dictionary
model_options['saveFreq'] = saveFreq
model_options['reload_'] = reload_
print model_options
# reload options
if reload_ and os.path.exists(saveto):
print 'reloading...' + saveto
with open('%s.pkl'%saveto, 'rb') as f:
models_options = pkl.load(f)
# load dictionary
print 'Loading dictionary...'
worddict = load_dictionary(dictionary)
# Inverse dictionary
word_idict = dict()
for kk, vv in worddict.iteritems():
word_idict[vv] = kk
word_idict[0] = '<eos>'
word_idict[1] = 'UNK'
print 'Building model'
params = init_params(model_options)
# reload parameters
if reload_ and os.path.exists(saveto):
params = load_params(saveto, params)
tparams = init_tparams(params)
trng, x, x_mask, p_f, p_f_mask, p_b, p_b_mask, \
ns_list, ns_masks, \
opt_ret, \
cost = \
build_model(tparams, model_options)
inps = [x, x_mask, p_f, p_f_mask, p_b, p_b_mask] + ns_list + ns_masks
# before any regularizer
print 'Building f_log_probs...',
f_log_probs = theano.function(inps, cost, profile=False)
print 'Done'
# weight decay, if applicable
if decay_c > 0.:
decay_c = theano.shared(numpy.float32(decay_c), name='decay_c')
weight_decay = 0.
for kk, vv in tparams.iteritems():
weight_decay += (vv ** 2).sum()
weight_decay *= decay_c
cost += weight_decay
# after any regularizer
print 'Building f_cost...',
f_cost = theano.function(inps, cost, profile=False)
print 'Done'
print 'Done'
print 'Building f_grad...',
grads = tensor.grad(cost, wrt=itemlist(tparams))
f_grad_norm = theano.function(inps, [(g**2).sum() for g in grads], profile=False)
f_weight_norm = theano.function([], [(t**2).sum() for k,t in tparams.iteritems()], profile=False)
if grad_clip > 0.:
g2 = 0.
for g in grads:
g2 += (g**2).sum()
new_grads = []
for g in grads:
new_grads.append(tensor.switch(g2 > (grad_clip**2),
g / tensor.sqrt(g2) * grad_clip,
g))
grads = new_grads
lr = tensor.scalar(name='lr')
print 'Building optimizers...',
# (compute gradients), (updates parameters)
f_grad_shared, f_update = eval(optimizer)(lr, tparams, grads, inps, cost)
print 'Optimization'
# Each sentence in the minibatch have same length (for encoder)
trainX = homogeneous_data.grouper(X)
train_iter = homogeneous_data.HomogeneousData(trainX, batch_size=batch_size, num_neg=num_neg, maxlen=maxlen_w)
uidx = 0
lrate = 0.01
for eidx in xrange(max_epochs):
n_samples = 0
print 'Epoch ', eidx
for x, p_f, p_b, ns in train_iter:
n_samples += len(x)
uidx += 1
# ns input is list of num_neg negative sentences,
# output ns is list of num_neg (batchsize, neg_len) negative sentences
x, x_mask, p_f, p_f_mask, p_b, p_b_mask, ns_list, ns_masks = homogeneous_data.prepare_data(x, p_f, p_b, ns,
worddict, maxlen=maxlen_w, n_words=n_words)
if x == None:
print 'Minibatch with zero sample under length ', maxlen_w
uidx -= 1
continue
ud_start = time.time()
args = [x, x_mask, p_f, p_f_mask, p_b, p_b_mask] + ns_list + ns_masks
cost = f_grad_shared(*args)
f_update(lrate)
ud = time.time() - ud_start
if numpy.isnan(cost_p1) or numpy.isinf(cost_p1) or numpy.isnan(cost_p2) or numpy.isinf(cost_p2):
print 'NaN detected'
return 1., 1., 1.
if numpy.mod(uidx, dispFreq) == 0:
print 'Epoch ', eidx, 'Update ', uidx, 'Cost ', cost_p1 + cost_p2, 'UD ', ud
if numpy.mod(uidx, saveFreq) == 0:
print 'Saving...',
saveto_idx = saveto.format(uidx)
params = unzip(tparams)
numpy.savez(saveto_idx, history_errs=[], **params)
pkl.dump(model_options, open('%s.pkl'%saveto_idx, 'wb'))
print 'Done'
print 'Seen %d samples'%n_samples
def trainer(X,
dim_word=620, # word vector dimensionality
dim=2400, # the number of GRU units
encoder='gru',
decoder='gru',
max_epochs=5,
dispFreq=1,
decay_c=0.,
grad_clip=5.,
n_words=20000,
maxlen_w=30,
optimizer='adam',
batch_size = 64,
saveto='/u/rkiros/research/semhash/models/toy.npz',
dictionary='/ais/gobi3/u/rkiros/bookgen/book_dictionary_large.pkl',
saveFreq=1000,
reload_=False):
# Model options
model_options = {}
model_options['dim_word'] = dim_word
model_options['dim'] = dim
model_options['encoder'] = encoder
model_options['decoder'] = decoder
model_options['max_epochs'] = max_epochs
model_options['dispFreq'] = dispFreq
model_options['decay_c'] = decay_c
model_options['grad_clip'] = grad_clip
model_options['n_words'] = n_words
model_options['maxlen_w'] = maxlen_w
model_options['optimizer'] = optimizer
model_options['batch_size'] = batch_size
model_options['saveto'] = saveto
model_options['dictionary'] = dictionary
model_options['saveFreq'] = saveFreq
model_options['reload_'] = reload_
print model_options
# reload options
# TODO: if loading old parameters you need to make sure you are using them
# in the rest of the code
# if reload_ and os.path.exists(saveto):
# print 'reloading...' + saveto
# with open('%s.pkl'%saveto, 'rb') as f:
# model_options = pkl.load(f)
# load dictionary
print 'Loading dictionary...'
worddict = load_dictionary(dictionary)
# Inverse dictionary
word_idict = dict()
for kk, vv in worddict.iteritems():
word_idict[vv] = kk
word_idict[0] = '<eos>'
word_idict[1] = 'UNK'
print 'Building model'
params = init_params(model_options)
# reload parameters
if reload_ and os.path.exists(saveto):
params = load_params(saveto + '.npz', params)
tparams = init_tparams(params)
trng, x, x_mask, y, y_mask, z, z_mask, \
opt_ret, \
cost = \
build_model(tparams, model_options)
inps = [x, x_mask, y, y_mask, z, z_mask]
# before any regularizer
print 'Building f_log_probs...',
f_log_probs = theano.function(inps, cost, profile=False)
print 'Done'
# weight decay, if applicable
if decay_c > 0.:
decay_c = theano.shared(numpy.float32(decay_c), name='decay_c')
weight_decay = 0.
for kk, vv in tparams.iteritems():
weight_decay += (vv ** 2).sum()
weight_decay *= decay_c
cost += weight_decay
# after any regularizer
print 'Building f_cost...',
f_cost = theano.function(inps, cost, profile=False)
print 'Done'
print 'Done'
print 'Building f_grad...',
grads = tensor.grad(cost, wrt=itemlist(tparams))
f_grad_norm = theano.function(inps, [(g**2).sum() for g in grads], profile=False)
f_weight_norm = theano.function([], [(t**2).sum() for k,t in tparams.iteritems()], profile=False)
if grad_clip > 0.:
g2 = 0.
for g in grads:
g2 += (g**2).sum()
new_grads = []
for g in grads:
new_grads.append(tensor.switch(g2 > (grad_clip**2),
g / tensor.sqrt(g2) * grad_clip,
g))
grads = new_grads
lr = tensor.scalar(name='lr')
print 'Building optimizers...',
# (compute gradients), (updates parameters)
f_grad_shared, f_update = eval(optimizer)(lr, tparams, grads, inps, cost)
print 'Optimization'
# Each sentence in the minibatch have same length (for encoder)
trainX = homogeneous_data.grouper(X)
train_iter = homogeneous_data.HomogeneousData(trainX, batch_size=batch_size, maxlen=maxlen_w)
uidx = 0
lrate = 0.01
for eidx in xrange(max_epochs):
n_samples = 0
print 'Epoch ', eidx
for x, y, z in train_iter:
n_samples += len(x)
uidx += 1
x, x_mask, y, y_mask, z, z_mask = homogeneous_data.prepare_data(x, y, z, worddict, maxlen=maxlen_w, n_words=n_words)
if x == None:
print 'Minibatch with zero sample under length ', maxlen_w
uidx -= 1
continue
ud_start = time.time()
cost = f_grad_shared(x, x_mask, y, y_mask, z, z_mask)
f_update(lrate)
ud = time.time() - ud_start
if numpy.isnan(cost) or numpy.isinf(cost):
print 'NaN detected'
return 1., 1., 1.
if numpy.mod(uidx, dispFreq) == 0:
print 'Epoch ', eidx, 'Update ', uidx, 'Cost ', cost, 'UD ', ud
if numpy.mod(uidx, saveFreq) == 0:
print 'Saving...',
params = unzip(tparams)
numpy.savez(saveto, history_errs=[], **params)
pkl.dump(model_options, open('%s.pkl'%saveto, 'wb'))
print 'Done'
print 'Seen %d samples'%n_samples
def trainer(
X,
dim_word=620, # word vector dimensionality
dim=2400, # the number of GRU units
encoder='gru',
decoder='gru',
max_epochs=5,
dispFreq=1,
decay_c=0.,
grad_clip=5.,
n_words=20000,
maxlen_w=30,
optimizer='adam',
batch_size=512,
saveto='/u/rkiros/research/semhash/models/toy.npz',
dictionary='/ais/gobi3/u/rkiros/bookgen/book_dictionary_large.pkl',
saveFreq=5000,
reload_=False,
reload_path='output_books_full/model_ae_full_bsz_64_iter_313000.npz',
SICK_eval=False):
# Model options
model_options = {}
model_options['dim_word'] = dim_word
model_options['dim'] = dim
model_options['encoder'] = encoder
model_options['decoder'] = decoder
model_options['max_epochs'] = max_epochs
model_options['dispFreq'] = dispFreq
model_options['decay_c'] = decay_c
model_options['grad_clip'] = grad_clip
model_options['n_words'] = n_words
model_options['maxlen_w'] = maxlen_w
model_options['optimizer'] = optimizer
model_options['batch_size'] = batch_size
model_options['saveto'] = saveto
model_options['dictionary'] = dictionary
model_options['saveFreq'] = saveFreq
model_options['reload_'] = reload_
model_options['reload_path'] = reload_path
print model_options
# reload options
if reload_ and os.path.exists(reload_path):
print 'reloading...' + reload_path
with open('%s.pkl' % reload_path, 'rb') as f:
models_options = pkl.load(f)
reload_idx = int(reload_path.split('_')[-1].split('.')[0])
# load dictionary
print 'Loading dictionary...'
worddict = load_dictionary(dictionary)
# Inverse dictionary
word_idict = dict()
for kk, vv in worddict.iteritems():
word_idict[vv] = kk
word_idict[0] = '<eos>'
word_idict[1] = 'UNK'
print 'Building model'
params = init_params(model_options)
# reload parameters
if reload_ and os.path.exists(reload_path):
params = load_params(reload_path, params)
tparams = init_tparams(params)
trng, x, x_mask, y, y_mask, z, z_mask, \
opt_ret, \
cost = \
build_model(tparams, model_options)
inps = [x, x_mask, y, y_mask, z, z_mask]
# before any regularizer
print 'Building f_log_probs...',
f_log_probs = theano.function(inps, cost, profile=False)
print 'Done'
# weight decay, if applicable
if decay_c > 0.:
decay_c = theano.shared(numpy.float32(decay_c), name='decay_c')
weight_decay = 0.
for kk, vv in tparams.iteritems():
weight_decay += (vv**2).sum()
weight_decay *= decay_c
cost += weight_decay
# after any regularizer
print 'Building f_cost...',
f_cost = theano.function(inps, cost, profile=False)
print 'Done'
print 'Done'
print 'Building f_grad...',
grads = tensor.grad(cost, wrt=itemlist(tparams))
f_grad_norm = theano.function(inps, [(g**2).sum() for g in grads],
profile=False)
f_weight_norm = theano.function([], [(t**2).sum()
for k, t in tparams.iteritems()],
profile=False)
if grad_clip > 0.:
g2 = 0.
for g in grads:
g2 += (g**2).sum()
new_grads = []
for g in grads:
new_grads.append(
tensor.switch(g2 > (grad_clip**2),
g / tensor.sqrt(g2) * grad_clip, g))
grads = new_grads
lr = tensor.scalar(name='lr')
print 'Building optimizers...',
# (compute gradients), (updates parameters)
f_grad_shared, f_update = eval(optimizer)(lr, tparams, grads, inps, cost)
print 'Optimization'
# Each sentence in the minibatch have same length (for encoder)
trainX = homogeneous_data.grouper(X)
train_iter = homogeneous_data.HomogeneousData(trainX,
batch_size=batch_size,
maxlen=maxlen_w)
if not reload_:
uidx = 0
else:
uidx = reload_idx
lrate = 0.01
for eidx in xrange(max_epochs):
n_samples = 0
print 'Epoch ', eidx
for x, y, z in train_iter:
n_samples += len(x)
uidx += 1
x, x_mask, y, y_mask, z, z_mask = homogeneous_data.prepare_data(
x, y, z, worddict, maxlen=maxlen_w, n_words=n_words)
if x == None:
print 'Minibatch with zero sample under length ', maxlen_w
uidx -= 1
continue
ud_start = time.time()
cost = f_grad_shared(x, x_mask, y, y_mask, z, z_mask)
f_update(lrate)
ud = time.time() - ud_start
if numpy.isnan(cost) or numpy.isinf(cost):
print 'NaN detected'
return 1., 1., 1.
if numpy.mod(uidx, dispFreq) == 0:
print 'Epoch ', eidx, 'Update ', uidx, 'Cost ', cost, 'UD ', ud
if numpy.mod(uidx, saveFreq) == 0:
print 'Saving...',
saveto_iternum = saveto.format(uidx)
params = unzip(tparams)
numpy.savez(saveto_iternum, history_errs=[], **params)
pkl.dump(model_options, open('%s.pkl' % saveto_iternum, 'wb'))
print 'Done'
if SICK_eval:
print "Evaluating SICK Test performance"
embed_map = tools.load_googlenews_vectors()
model = tools.load_model(path_to_model=saveto_iternum,
embed_map=embed_map)
yhat, pr, sr, mse = eval_sick.evaluate(model,
evaltest=True)
del (model)
del (embed_map)
print pr, sr, mse
res_save_file = saveto.format('ALL').split(
'.')[0] + '_SICK_EVAL.txt'
with open(res_save_file, 'a') as rsf:
cur_time = strftime("%a, %d %b %Y %H:%M:%S +0000",
gmtime())
rsf.write('\n \n {}'.format(cur_time))
rsf.write('\n{}, {}, {}, {}'.format(uidx, pr, se, mse))
print "Done"
print 'Seen %d samples' % n_samples