def single_word_file_predict(data_filename, predict_filename):
print 'Predict file ' + data_filename
sentence_list = []
words_list = []
labels_list = []
with open(data_filename, mode='r') as data_file:
for line in data_file:
word_list, label_list = data_utils.split(line)
if word_list and label_list:
sentence_list.append(''.join(word_list))
words_list.append(' '.join(word_list))
labels_list.append(' '.join(label_list))
predict_labels_list = words_predict(words_list)
word_predict_label_list = []
word_category_list = []
word_predict_category_list = []
for (words, labels, predict_labels) in zip(words_list, labels_list,
predict_labels_list):
word_list = words.split()
label_list = labels.split()
predict_label_list = predict_labels.split()
word_predict_label = ' '.join([
word + '/' + predict_label
for (word, predict_label) in zip(word_list, predict_label_list)
])
word_predict_label_list.append(word_predict_label)
# merge label
merge_word_list, merge_label_list = data_utils.merge_label(
word_list, label_list)
word_category = ' '.join([
word + '/' + label
for (word, label) in zip(merge_word_list, merge_label_list)
if label != 'O'
])
word_category_list.append(word_category)
# merge predict label
merge_predict_word_list, merge_predict_label_list = data_utils.merge_label(
word_list, predict_label_list)
word_predict_category = ' '.join([
predict_word + '/' + predict_label
for (predict_word, predict_label
) in zip(merge_predict_word_list, merge_predict_label_list)
if predict_label != 'O'
])
word_predict_category_list.append(word_predict_category)
with open(predict_filename, mode='w') as predict_file:
for (sentence, word_predict_label, word_category, word_predict_category) in \
zip(sentence_list, word_predict_label_list, word_category_list, word_predict_category_list):
predict_file.write('Passage: ' + sentence + '\n')
predict_file.write('SinglePredict: ' + word_predict_label + '\n')
predict_file.write('Merge: ' + word_category + '\n')
predict_file.write('MergePredict: ' + word_predict_category + '\n')
predict_file.write('\n')
def train_svm(dataset_loader, test_points, data_limit=0):
input_, output = get_data_up_to_limit(dataset_loader, data_limit)
input_, output = data_utils.construct_one_vs_all(input_, output, 0)
(input_train, input_test, output_train,
output_test) = data_utils.split(input_, output, test_points)
#Run svm
svm = SVM()
svm.give_training_data(input_train, output_train)
svm.train()
svm.give_test_data(input_test, output_test)
svm.analyze()
def file_predict(data_filename, predict_filename):
print 'Predict file ' + data_filename
words_list = []
labels_list = []
with open(data_filename, mode='r') as data_file:
for line in data_file:
word_list, label_list = data_utils.split(line)
if word_list and label_list:
words_list.append(' '.join(word_list))
labels_list.append(' '.join(label_list))
predict_labels_list = words_predict(words_list)
with open(predict_filename, mode='w') as predict_file:
for (words, labels, predict_labels) in zip(words_list, labels_list,
predict_labels_list):
predict_file.write('Passage: ' + words + '\n')
predict_file.write('Label: ' + labels + '\n')
predict_file.write('PredictLabel: ' + predict_labels + '\n' + '\n')
def main():
parser = argparse.ArgumentParser(
description=
'Split train.csv into train, dev, and test splits. Specify dev and validation set sizes with args, the remainder is used for training.'
)
parser.add_argument(
'--dataset-file',
required=True,
help='path to the train.csv file containing the quora training data')
parser.add_argument('--ndev',
type=int,
default=1e4,
help='size of dev set to create')
parser.add_argument('--nvalid',
type=int,
default=5e4,
help='size of validation set to create')
parser.add_argument(
'--output-dir',
required=True,
help='directory to which to write train.csv, dev.csv, and valid.csv')
parser.add_argument(
'--seed',
type=int,
help=
'optional random seed to have reproducibility between multiple uses of this tool'
)
args = parser.parse_args()
data = du.load_csv(args.dataset_file)
shuffled = du.shuffle(data, args.seed)
ntrain = len(data) - args.ndev - args.nvalid
train, dev, valid = du.split(shuffled, ntrain, args.ndev, args.nvalid)
du.write_csv(train, os.path.join(args.output_dir, 'train.csv'))
du.write_csv(dev, os.path.join(args.output_dir, 'dev.csv'))
du.write_csv(valid, os.path.join(args.output_dir, 'valid.csv'))
def model_memorisation(identifier, epoch, max_samples=2000, tstr=False):
"""
Compare samples from a model against training set and validation set in mmd
"""
if tstr:
print('Loading data from TSTR experiment (not sampling from model)')
# load pre-generated samples
synth_data = np.load('./experiments/tstr/' + identifier + '_' +
str(epoch) + '.data.npy').item()
model_samples = synth_data['samples']
synth_labels = synth_data['labels']
# load real data used in that experiment
real_data = np.load('./experiments/data/' + identifier +
'.data.npy').item()
real_samples = real_data['samples']
train = real_samples['train']
test = real_samples['test']
n_samples = test.shape[0]
if model_samples.shape[0] > n_samples:
model_samples = np.random.permutation(model_samples)[:n_samples]
print('Data loaded successfully!')
else:
if identifier == 'cristobal_eICU':
model_samples = pickle.load(open('REDACTED', 'rb'))
samples, labels = data_utils.eICU_task()
train = samples['train'].reshape(-1, 16, 4)
vali = samples['vali'].reshape(-1, 16, 4)
test = samples['test'].reshape(-1, 16, 4)
#train_targets = labels['train']
#vali_targets = labels['vali']
#test_targets = labels['test']
train, vali, test = data_utils.scale_data(train, vali, test)
n_samples = test.shape[0]
if n_samples > max_samples:
n_samples = max_samples
test = np.random.permutation(test)[:n_samples]
if model_samples.shape[0] > n_samples:
model_samples = np.random.permutation(
model_samples)[:n_samples]
elif identifier == 'cristobal_MNIST':
the_dir = 'REDACTED'
# pick a random one
which = np.random.choice(['NEW_OK_', '_r4', '_r5', '_r6', '_r7'])
model_samples, model_labels = pickle.load(
open(
the_dir +
'synth_mnist_minist_cdgan_1_2_100_multivar_14_nolr_rdim3_0_2_'
+ which + '_190.pk', 'rb'))
# get test and train...
# (generated with fixed seed...)
mnist_resized_dim = 14
samples, labels = data_utils.load_resized_mnist(mnist_resized_dim)
proportions = [0.6, 0.2, 0.2]
train, vali, test, labels_split = data_utils.split(
samples, labels=labels, random_seed=1, proportions=proportions)
np.random.seed()
train = train.reshape(-1, 14, 14)
test = test.reshape(-1, 14, 14)
vali = vali.reshape(-1, 14, 14)
n_samples = test.shape[0]
if n_samples > max_samples:
n_samples = max_samples
test = np.random.permutation(test)[:n_samples]
if model_samples.shape[0] > n_samples:
model_samples = np.random.permutation(
model_samples)[:n_samples]
else:
settings = json.load(
open('./experiments/settings/' + identifier + '.txt', 'r'))
# get the test, train sets
data = np.load('./experiments/data/' + identifier +
'.data.npy').item()
train = data['samples']['train']
test = data['samples']['test']
n_samples = test.shape[0]
if n_samples > max_samples:
n_samples = max_samples
test = np.random.permutation(test)[:n_samples]
model_samples = model.sample_trained_model(settings, epoch,
n_samples)
all_samples = np.vstack([train, test, model_samples])
heuristic_sigma = mmd.median_pairwise_distance(all_samples)
print('heuristic sigma:', heuristic_sigma)
pvalue, tstat, sigma, MMDXY, MMDXZ = MMD_3_Sample_Test(
model_samples,
test,
np.random.permutation(train)[:n_samples],
sigma=heuristic_sigma,
computeMMDs=False)
#pvalue, tstat, sigma, MMDXY, MMDXZ = MMD_3_Sample_Test(model_samples, np.random.permutation(train)[:n_samples], test, sigma=heuristic_sigma, computeMMDs=False)
# if pvalue < 0.05:
# print('At confidence level 0.05, we reject the null hypothesis that MMDXY <= MMDXZ, and conclude that the test data has a smaller MMD with the true data than the generated data')
# the function takes (X, Y, Z) as its first arguments, it's testing if MMDXY (i.e. MMD between model and train) is less than MMDXZ (MMd between model and test)
# else:
# print('We have failed to reject the null hypothesis that MMDXY <= MMDXZ, and cannot conclu#de that the test data has a smaller MMD with the true data than the generated data')
return pvalue, tstat, sigma
]
data_settings = dict(
(k, settings[k]) for k in data_vars if k in settings.keys())
samples, pdf, labels = data_utils.get_data(settings['data'], data_settings)
if 'multivariate_mnist' in settings and settings['multivariate_mnist']:
seq_length = samples.shape[1]
samples = samples.reshape(-1, int(np.sqrt(seq_length)),
int(np.sqrt(seq_length)))
if 'normalise' in settings and settings[
'normalise']: # TODO this is a mess, fix
print(settings['normalise'])
norm = True
else:
norm = False
if labels is None:
train, vali, test = data_utils.split(samples, [0.6, 0.2, 0.2],
normalise=norm)
train_labels, vali_labels, test_labels = None, None, None
else:
train, vali, test, labels_list = data_utils.split(samples,
[0.6, 0.2, 0.2],
normalise=norm,
labels=labels)
train_labels, vali_labels, test_labels = labels_list
labels = dict()
labels['train'], labels['vali'], labels[
'test'] = train_labels, vali_labels, test_labels
del train_labels
del vali_labels
del test_labels
transforms.RandomHorizontalFlip(),
transforms.ToTensor(), normalize
])
transforms_test = transforms.Compose([transforms.ToTensor(), normalize])
best_acc = 0
start_epoch = 0
trainset = torchvision.datasets.CIFAR10(root='./data',
train=True,
download=True,
transform=None)
train_data, train_labels = trainset.data, np.squeeze(trainset.targets)
unlabeled_idxs, labeled_idxs, _ = du.split(trainset, sn=5000, v_sn=0)
train_datasets = DT(trainData=train_data[labeled_idxs, :, :, :],
trainLabel=train_labels[labeled_idxs],
transform=transforms_train)
trainloader = torch.utils.data.DataLoader(train_datasets,
batch_size=100,
shuffle=True,
num_workers=4)
testset = torchvision.datasets.CIFAR10(root='./data',
train=False,
download=True,
transform=transforms_test)
testloader = torch.utils.data.DataLoader(testset,
samples = []
#Load the stock data by each row
#Shape is num_samples * sequence_length(each stocks time series) * number of signal channels (high, open, close, low, volume at each time step)
#Everything needs to be an np.ndarray
for stock, df_stock in df.groupby('Name'):
sequence = []
for index, row in df_stock.iterrows():
#print(list(row[1:6]))
sequence.append(np.array(list(row[1:6])))
sequence = np.array(sequence)
if (len(sequence) == 1259):
samples.append(sequence)
samples = np.array(samples)
#split into train,vali,test split. Normalize/scale don't work correctly
train, vali, test = data_utils.split(samples, [0.6, 0.2, 0.2], normalise=False)
train_labels, vali_labels, test_labels = None, None, None
#Check that values scale correctly
print("Before scaling")
print(train)
for i in range(len(train)):
train[i] = scale_linear_bycolumn(train[i])
for i in range(len(vali)):
vali[i] = scale_linear_bycolumn(vali[i])
for i in range(len(test)):
test[i] = scale_linear_bycolumn(test[i])
print("After scaling")
print(train)
labels = dict()
labels['train'], labels['vali'], labels[
'test'] = train_labels, vali_labels, test_labels
