def run():
args = parser.parse_args()
nlayer = args.nlayer
bidirection = args.bidirection
file_path = args.file_path #'/content/drive/My Drive/Master_Final_Project/Genetic_attack/Code/nlp_adversarial_example_master_pytorch/glove.840B.300d.txt'#'/lustre/scratch/scratch/ucabdc3/lstm_attack'
save_path = os.path.join(file_path, 'results')
MAX_VOCAB_SIZE = 50000
device = torch.device("cuda:0" if torch.cuda.is_available() else "cpu")
# with open(os.path.join(file_path, 'dataset_%d.pkl' %MAX_VOCAB_SIZE), 'rb') as f:
# dataset = pickle.load(f)
with open('aux_files/dataset_%d.pkl' % MAX_VOCAB_SIZE, 'rb') as f:
dataset = pickle.load(f)
# skip_list = np.load('aux_files/missed_embeddings_counter_%d.npy' %MAX_VOCAB_SIZE)
embedding_matrix = np.load('aux_files/embeddings_glove_%d.npy' %
(MAX_VOCAB_SIZE))
embedding_matrix = torch.tensor(embedding_matrix.T).to(device)
dist = np.load(('aux_files/dist_counter_%d.npy' % (MAX_VOCAB_SIZE)))
# goog_lm = LM()
# pytorch
max_len = args.max_len
# padded_train_raw = pad_sequences(dataset.train_seqs2, maxlen = max_len, padding = 'post')
padded_test_raw = pad_sequences(dataset.test_seqs2,
maxlen=max_len,
padding='post')
# # TrainSet
# data_set = Data_infor(padded_train_raw, dataset.train_y)
# num_train = len(data_set)
# indx = list(range(num_train))
# train_set = Subset(data_set, indx)
# TestSet
batch_size = 1
SAMPLE_SIZE = args.sample_size
data_set = Data_infor(padded_test_raw, dataset.test_y)
num_test = len(data_set)
indx = list(range(num_test))
all_test_set = Subset(data_set, indx)
# indx = random.sample(indx, SAMPLE_SIZE)
with open('seq_number.pkl', 'rb') as f:
indx = pickle.load(f)
test_set = Subset(data_set, indx)
test_loader = DataLoader(test_set,
batch_size=batch_size,
shuffle=False,
pin_memory=True)
all_test_loader = DataLoader(all_test_set, batch_size=128, shuffle=True)
lstm_size = 128
rnn_state_save = os.path.join(file_path, 'best_lstm_0.7_0.001_300')
model = SentimentAnalysis(batch_size=batch_size,
embedding_matrix=embedding_matrix,
hidden_size=lstm_size,
kept_prob=0.7,
num_layers=nlayer,
bidirection=bidirection)
model.load_state_dict(torch.load(rnn_state_save))
model = model.to(device)
model.eval()
test_pred = torch.tensor([])
test_targets = torch.tensor([])
with torch.no_grad():
for batch_index, (seqs, length, target) in enumerate(all_test_loader):
seqs, target, length = seqs.to(device), target.to(
device), length.to(device)
seqs = seqs.type(torch.LongTensor)
len_order = torch.argsort(length, descending=True)
length = length[len_order]
seqs = seqs[len_order]
target = target[len_order]
output, pred_out = model.pred(seqs, length, False)
test_pred = torch.cat((test_pred, pred_out.cpu()), dim=0)
test_targets = torch.cat(
(test_targets, target.type(torch.float).cpu()))
accuracy = model.evaluate_accuracy(test_pred.numpy(),
test_targets.numpy())
print('Test Accuracy:{:.4f}.'.format(accuracy))
n1 = 8
n2 = 4
pop_size = 60
max_iters = 20
n_prefix = 5
n_suffix = 5
batch_model = SentimentAnalysis(batch_size=pop_size,
embedding_matrix=embedding_matrix,
hidden_size=lstm_size,
kept_prob=0.7,
num_layers=nlayer,
bidirection=bidirection)
batch_model.eval()
batch_model.load_state_dict(torch.load(rnn_state_save))
batch_model.to(device)
neighbour_model = SentimentAnalysis(batch_size=n1,
embedding_matrix=embedding_matrix,
hidden_size=lstm_size,
kept_prob=0.7,
num_layers=nlayer,
bidirection=bidirection)
neighbour_model.eval()
neighbour_model.load_state_dict(torch.load(rnn_state_save))
neighbour_model.to(device)
lm_model = gpt_2_get_words_probs()
use_lm = args.use_lm
ga_attack = GeneticAttack_pytorch(model,
batch_model,
neighbour_model,
dist,
lm_model,
max_iters=max_iters,
dataset=dataset,
pop_size=pop_size,
n1=n1,
n2=n2,
n_prefix=n_prefix,
n_suffix=n_suffix,
use_lm=use_lm,
use_suffix=True)
TEST_SIZE = args.test_size
order_pre = 0
n = 0
seq_success = []
seq_orig = []
seq_orig_label = []
word_varied = []
orig_list = []
adv_list = []
dist_list = []
l_list = []
label_list = []
# if order_pre != 0:
# seq_success = np.load(os.path.join(save_path,'seq_success.npy'), allow_pickle = True).tolist()
# seq_orig = np.load(os.path.join(save_path,'seq_orig.npy')).tolist()
# seq_orig_label = np.load(os.path.join(save_path,'seq_orig_label.npy')).tolist()
# word_varied = np.load(os.path.join(save_path,'word_varied.npy'), allow_pickle = True).tolist()
# n = len(seq_success)
for order, (seq, l, target) in enumerate(test_loader):
if order >= order_pre:
seq_len = np.sum(np.sign(seq.numpy()))
seq, l = seq.to(device), l.to(device)
seq = seq.type(torch.LongTensor)
model.eval()
with torch.no_grad():
preds = model.pred(seq, l, False)[1]
orig_pred = np.argmax(preds.cpu().detach().numpy())
if orig_pred != target.numpy()[0]:
#print('Wrong original prediction')
#print('----------------------')
continue
if seq_len > args.max_len:
#print('Sequence is too long')
#print('----------------------')
continue
print('Sequence number:{}'.format(order))
print('Length of sentence: {}, Number of samples:{}'.format(
l.item(), n + 1))
print(preds)
seq_orig.append(seq[0].numpy())
seq_orig_label.append(target.numpy()[0])
target = 1 - target.numpy()[0]
# seq_success.append(ga_attack.attack(seq, target, l))
# if None not in np.array(seq_success[n]):
# w_be = [dataset.inv_dict[seq_orig[n][i]] for i in list(np.where(seq_success[n] != seq_orig[n])[0])]
# w_to = [dataset.inv_dict[seq_success[n][i]] for i in list(np.where(seq_success[n] != seq_orig[n])[0])]
# for i in range(len(w_be)):
# print('{} ----> {}'.format(w_be[i], w_to[i]))
# word_varied.append([w_be]+[w_to])
# else:
# print('Fail')
# print('----------------------')
# n += 1
# np.save(os.path.join(save_path,'seq_success_1000.npy'), np.array(seq_success))
# np.save(os.path.join(save_path,'seq_orig_1000.npy'), np.array(seq_orig))
# np.save(os.path.join(save_path,'seq_orig_label_1000.npy'), np.array(seq_orig_label))
# np.save(os.path.join(save_path,'word_varied_1000.npy'), np.array(word_varied))
# if n>TEST_SIZE:
# break
x_adv = ga_attack.attack(seq, target, l)
orig_list.append(seq[0].numpy())
adv_list.append(x_adv)
label_list.append(1 - target)
l_list.append(l.cpu().numpy()[0])
if x_adv is None:
print('%d failed' % (order))
dist_list.append(100000)
else:
num_changes = np.sum(seq[0].numpy() != x_adv)
print('%d - %d changed.' % (order, num_changes))
dist_list.append(num_changes)
# display_utils.visualize_attack(sess, model, dataset, x_orig, x_adv)
print('--------------------------')
n += 1
#if n>TEST_SIZE:
# break
orig_len = [np.sum(np.sign(x)) for x in orig_list]
normalized_dist_list = [
dist_list[i] / orig_len[i] for i in range(len(orig_list))
]
SUCCESS_THRESHOLD = 0.25
successful_attacks = [
x < SUCCESS_THRESHOLD for x in normalized_dist_list
]
print('Attack success rate : {:.2f}%'.format(
np.mean(successful_attacks) * 100))
SUCCESS_THRESHOLD = 0.2
successful_attacks = [
x < SUCCESS_THRESHOLD for x in normalized_dist_list
]
print('Attack success rate : {:.2f}%'.format(
np.mean(successful_attacks) * 100))
output_path = 'attack_results_final_300_AL_' + str(max_len) + '.pkl'
with open(output_path, 'wb') as f:
pickle.dump(
(orig_list, adv_list, l_list, label_list, normalized_dist_list), f)
def train():
args = parser.parse_args()
learning_rate = args.learning_rate
nlayer = args.nlayer
bidirection = args.bidirection
save_path = args.save_path
kept_prob = args.kept_prob
MAX_VOCAB_SIZE = 50000
with open(('aux_files/dataset_%d.pkl' % MAX_VOCAB_SIZE), 'rb') as f:
dataset = pickle.load(f)
device = torch.device("cuda:0" if torch.cuda.is_available() else "cpu")
embedding_matrix = np.load('aux_files/embeddings_glove_%d.npy' %
(MAX_VOCAB_SIZE))
embedding_matrix = torch.tensor(embedding_matrix.T).to(device)
# pytorch
max_len = 100
padded_train_raw = pad_sequences(dataset.train_seqs2,
maxlen=max_len,
padding='post')
padded_test_raw = pad_sequences(dataset.test_seqs2,
maxlen=max_len,
padding='post')
# TrainSet
data_set_train = Data_infor(padded_train_raw, dataset.train_y)
num_train = len(data_set_train)
indx = list(range(num_train))
all_train_set = Subset(data_set_train, indx)
train_indx = random.sample(indx, int(num_train * 0.8))
vali_indx = [i for i in indx if i not in train_indx]
train_set = Subset(data_set_train, train_indx)
vali_set = Subset(data_set_train, vali_indx)
# TestSet
data_set_test = Data_infor(padded_test_raw, dataset.test_y)
num_test = len(data_set_test)
indx = list(range(num_test))
# indx = random.sample(indx, SAMPLE_SIZE)
test_set = Subset(data_set_test, indx)
batch_size = 64
hidden_size = 128
all_train_loader = DataLoader(all_train_set,
batch_size=batch_size,
shuffle=True)
train_loader = DataLoader(train_set, batch_size=batch_size, shuffle=True)
vali_loader = DataLoader(vali_set, batch_size=len(vali_indx) // batch_size)
test_loader = DataLoader(test_set,
batch_size=int(num_test / 10),
shuffle=True)
best_save_path = os.path.join(
save_path, 'best_lstm_' + str(kept_prob) + '_' + str(learning_rate) +
'_' + str(max_len))
rnn = SentimentAnalysis(batch_size, embedding_matrix, hidden_size,
kept_prob, nlayer, bidirection)
rnn = rnn.to(device)
# class my_loss(nn.Module):
# def __init__(self):
# super().__init__()
# self.relu = nn.ReLU()
# def forward(self, x, y):
# loss = torch.mean((1-y)*x+torch.log(1+torch.exp(-abs(x)))+self.relu(-x))
# return loss
criterion = nn.CrossEntropyLoss()
optimiser = torch.optim.AdamW(rnn.parameters(), lr=learning_rate)
# optimiser = torch.optim.SGD(rnn.parameters(), lr = learning_rate)
epoches = 20
best_epoch = 0
best_acc = 0
patience = 15
for epoch in range(epoches):
test_pred = torch.tensor([])
test_targets = torch.tensor([])
train_pred = torch.tensor([])
train_targets = torch.tensor([])
test_loss = []
train_loss = []
rnn.train()
for batch_index, (seqs, length, target) in enumerate(all_train_loader):
seqs = seqs.type(torch.LongTensor)
len_order = torch.argsort(length, descending=True)
length = length[len_order]
seqs = seqs[len_order]
target = target[len_order].type(torch.LongTensor)
optimiser.zero_grad()
seqs, target, length = seqs.to(device), target.to(
device), length.to(device)
output, pred_out = rnn(seqs, length, True)
loss = criterion(output, target)
loss.backward()
optimiser.step()
train_pred = torch.cat(
(train_pred, pred_out.type(torch.float).cpu()), dim=0)
train_targets = torch.cat(
(train_targets, target.type(torch.float).cpu()))
train_loss.append(loss)
if batch_index % 100 == 0:
print('Train Batch:{}, Train Loss:{:.4f}.'.format(
batch_index, loss.item()))
train_accuracy = rnn.evaluate_accuracy(train_pred.detach().numpy(),
train_targets.detach().numpy())
print(
'Epoch:{}, Train Accuracy:{:.4f}, Train Mean loss:{:.4f}.'.format(
epoch, train_accuracy,
sum(train_loss) / len(train_loss)))
rnn.eval()
with torch.no_grad():
for batch_index, (seqs, length, target) in enumerate(test_loader):
seqs = seqs.type(torch.LongTensor)
len_order = torch.argsort(length, descending=True)
length = length[len_order]
seqs = seqs[len_order]
target = target[len_order].type(torch.LongTensor)
seqs, target, length = seqs.to(device), target.to(
device), length.to(device)
output, pred_out = rnn(seqs, length, False)
test_pred = torch.cat(
(test_pred, pred_out.type(torch.float).cpu()), dim=0)
test_targets = torch.cat(
(test_targets, target.type(torch.float).cpu()))
loss = criterion(output, target)
test_loss.append(loss.item())
if batch_index % 100 == 0:
print('Vali Batch:{}, Validation Loss:{:.4f}.'.format(
batch_index, loss.item()))
accuracy = rnn.evaluate_accuracy(test_pred.numpy(),
test_targets.numpy())
print('Epoch:{}, Vali Accuracy:{:.4f}, Vali Mean loss:{:.4f}.'.
format(epoch, accuracy,
sum(test_loss) / len(test_loss)))
print('\n\n')
# # best save
# if accuracy > best_acc:
# best_acc = accuracy
# best_epoch = epoch
# torch.save(rnn.state_dict(), best_save_path)
# # early stop
# if epoch-best_epoch >=patience:
# print('Early stopping')
# print('Best epoch: {}, Best accuracy: {:.4f}.'.format(best_epoch, best_acc))
# break
torch.save(rnn.state_dict(), best_save_path)
rnn.load_state_dict(torch.load(best_save_path))
rnn.to(device)
rnn.eval()
test_pred = torch.tensor([])
test_targets = torch.tensor([])
test_loss = []
with torch.no_grad():
for batch_index, (seqs, length, target) in enumerate(test_loader):
seqs = seqs.type(torch.LongTensor)
len_order = torch.argsort(length, descending=True)
length = length[len_order]
seqs = seqs[len_order]
target = target[len_order]
seqs, target, length = seqs.to(device), target.to(
device), length.to(device)
output, pred_out = rnn(seqs, length, False)
test_pred = torch.cat(
(test_pred, pred_out.type(torch.float).cpu()), dim=0)
test_targets = torch.cat(
(test_targets, target.type(torch.float).cpu()))
loss = criterion(output, target)
test_loss.append(loss.item())
accuracy = rnn.evaluate_accuracy(test_pred.numpy(),
test_targets.numpy())
print('Test Accuracy:{:.4f}, Test Mean loss:{:.4f}.'.format(
accuracy,
sum(test_loss) / len(test_loss)))
def run():
args = parser.parse_args()
file_path = args.file_path #'/content/drive/My Drive/Master_Final_Project/Genetic_attack/Code/nlp_adversarial_example_master_pytorch/glove.840B.300d.txt'#'/lustre/scratch/scratch/ucabdc3/lstm_attack'
save_path = os.path.join(file_path, 'results')
MAX_VOCAB_SIZE = 50000
device = torch.device("cuda:0" if torch.cuda.is_available() else "cpu")
# with open(os.path.join(file_path, 'dataset_%d.pkl' %MAX_VOCAB_SIZE), 'rb') as f:
# dataset = pickle.load(f)
with open('aux_files/dataset_%d.pkl' % MAX_VOCAB_SIZE, 'rb') as f:
dataset = pickle.load(f)
# skip_list = np.load('aux_files/missed_embeddings_counter_%d.npy' %MAX_VOCAB_SIZE)
embedding_matrix = np.load('aux_files/embeddings_glove_%d.npy' %
(MAX_VOCAB_SIZE))
embedding_matrix = torch.tensor(embedding_matrix.T).to(device)
dist = np.load(('aux_files/dist_counter_%d.npy' % (MAX_VOCAB_SIZE)))
# goog_lm = LM()
# pytorch
max_len = 250
# padded_train_raw = pad_sequences(dataset.train_seqs2, maxlen = max_len, padding = 'post')
padded_test_raw = pad_sequences(dataset.test_seqs2,
maxlen=max_len,
padding='post')
# # TrainSet
# data_set = Data_infor(padded_train_raw, dataset.train_y)
# num_train = len(data_set)
# indx = list(range(num_train))
# train_set = Subset(data_set, indx)
# TestSet
batch_size = 1
SAMPLE_SIZE = args.sample_size
data_set = Data_infor(padded_test_raw, dataset.test_y)
num_test = len(data_set)
indx = list(range(num_test))
all_test_set = Subset(data_set, indx)
indx = random.sample(indx, SAMPLE_SIZE)
test_set = Subset(data_set, indx)
test_loader = DataLoader(test_set, batch_size=batch_size, shuffle=False)
all_test_loader = DataLoader(all_test_set, batch_size=128, shuffle=True)
lstm_size = 128
rnn_state_save = os.path.join(file_path, 'best_lstm_0_73_0_0005')
model = SentimentAnalysis(batch_size=batch_size,
embedding_matrix=embedding_matrix,
hidden_size=lstm_size,
kept_prob=0.73,
num_layers=2,
bidirection=True)
model.eval()
model.load_state_dict(torch.load(rnn_state_save))
model = model.to(device)
model.eval()
test_pred = torch.tensor([])
test_targets = torch.tensor([])
with torch.no_grad():
for batch_index, (seqs, length, target) in enumerate(all_test_loader):
seqs, target, length = seqs.to(device), target.to(
device), length.to(device)
seqs = seqs.type(torch.LongTensor)
len_order = torch.argsort(length, descending=True)
length = length[len_order]
seqs = seqs[len_order]
target = target[len_order]
output = model.pred(seqs, length)
test_pred = torch.cat((test_pred, output.cpu()), dim=0)
test_targets = torch.cat(
(test_targets, target.type(torch.float).cpu()))
accuracy = model.evaluate_accuracy(test_pred.numpy(),
test_targets.numpy())
print('Test Accuracy:{:.4f}.'.format(accuracy))
np.save(os.path.join(save_path, 'accuracy.npy'), np.array(accuracy))
print('\n')
n1 = 8
n2 = 4
pop_size = 60
max_iters = 20
n_prefix = 4
batch_model = SentimentAnalysis(batch_size=pop_size,
embedding_matrix=embedding_matrix,
hidden_size=lstm_size,
kept_prob=0.73,
num_layers=2,
bidirection=True)
batch_model.eval()
batch_model.load_state_dict(torch.load(rnn_state_save))
batch_model.to(device)
neighbour_model = SentimentAnalysis(batch_size=batch_size,
embedding_matrix=embedding_matrix,
hidden_size=lstm_size,
kept_prob=0.73,
num_layers=2,
bidirection=True)
neighbour_model.eval()
neighbour_model.load_state_dict(torch.load(rnn_state_save))
neighbour_model.to(device)
lm_model = gpt_2_get_words_probs()
ga_attack = GeneticAttack_pytorch(model,
batch_model,
neighbour_model,
dist,
lm_model,
max_iters=max_iters,
dataset=dataset,
pop_size=pop_size,
n1=n1,
n2=n2,
n_prefix=n_prefix,
use_lm=True,
use_suffix=False)
TEST_SIZE = args.test_size
order_pre = 0
n = 0
seq_success = []
seq_orig = []
seq_orig_label = []
word_varied = []
seq_success_path = os.path.join(save_path, 'seq_success_gpt.npy')
seq_orig_path = os.path.join(save_path, 'seq_orig_gpt.npy')
seq_orig_label_path = os.path.join(save_path, 'seq_orig_label_gpt.npy')
word_varied_path = os.path.join(save_path, 'word_varied_gpt.npy')
# if order_pre != 0:
# seq_success = np.load(seq_success_path, allow_pickle = True).tolist()
# seq_orig = np.load(seq_orig_path).tolist()
# seq_orig_label = np.load(seq_orig_label_path).tolist()
# word_varied = np.load(word_varied_path, allow_pickle = True).tolist()
# n = len(seq_success)
for order, (seq, l, target) in enumerate(test_loader):
if order >= order_pre:
print('Sequence number:{}'.format(order))
seq_len = np.sum(np.sign(seq.numpy()))
seq, l = seq.to(device), l.to(device)
seq = seq.type(torch.LongTensor)
model.eval()
with torch.no_grad():
orig_pred = np.argmax(
model.pred(seq, l).cpu().detach().numpy())
if orig_pred != target.numpy()[0]:
print('Wrong original prediction')
print('----------------------')
continue
if seq_len > 100:
print('Sequence is too long')
print('----------------------')
continue
print('Length of sentence: {}, Number of samples:{}'.format(
l.item(), n + 1))
seq_orig.append(seq[0].numpy())
seq_orig_label.append(target.numpy()[0])
target = 1 - target.numpy()[0]
seq_success.append(
ga_attack.attack(seq, target, l.type(torch.LongTensor)))
if None not in np.array(seq_success[n]):
w_be = [
dataset.inv_dict[seq_orig[n][i]]
for i in list(np.where(seq_success[n] != seq_orig[n])[0])
]
w_to = [
dataset.inv_dict[seq_success[n][i]]
for i in list(np.where(seq_success[n] != seq_orig[n])[0])
]
for i in range(len(w_be)):
print('{} ----> {}'.format(w_be[i], w_to[i]))
word_varied.append([w_be] + [w_to])
else:
print('Fail')
print('----------------------')
n += 1
np.save(seq_success_path, np.array(seq_success))
np.save(seq_orig_path, np.array(seq_orig))
np.save(seq_orig_label_path, np.array(seq_orig_label))
np.save(word_varied_path, np.array(word_varied, dtype=object))
if n > TEST_SIZE:
break
def run():
args = parser.parse_args()
nlayer = args.nlayer
bidirection = args.bidirection
file_path = args.file_path#'/content/drive/My Drive/Master_Final_Project/Genetic_attack/Code/nlp_adversarial_example_master_pytorch/glove.840B.300d.txt'#'/lustre/scratch/scratch/ucabdc3/lstm_attack'
save_path = os.path.join(file_path, 'results')
MAX_VOCAB_SIZE = 50000
device = torch.device("cuda:0" if torch.cuda.is_available() else "cpu")
# with open(os.path.join(file_path, 'dataset_%d.pkl' %MAX_VOCAB_SIZE), 'rb') as f:
# dataset = pickle.load(f)
with open('aux_files/dataset_%d.pkl' %MAX_VOCAB_SIZE, 'rb') as f:
dataset = pickle.load(f)
# skip_list = np.load('aux_files/missed_embeddings_counter_%d.npy' %MAX_VOCAB_SIZE)
embedding_matrix = np.load('aux_files/embeddings_glove_%d.npy' %(MAX_VOCAB_SIZE))
embedding_matrix = torch.tensor(embedding_matrix.T).to(device)
dist = np.load(('aux_files/dist_counter_%d.npy' %(MAX_VOCAB_SIZE)))
# goog_lm = LM()
# pytorch
max_len = args.max_len
# padded_train_raw = pad_sequences(dataset.train_seqs2, maxlen = max_len, padding = 'post')
padded_test_raw = pad_sequences(dataset.test_seqs2, maxlen = max_len, padding = 'post')
# # TrainSet
# data_set = Data_infor(padded_train_raw, dataset.train_y)
# num_train = len(data_set)
# indx = list(range(num_train))
# train_set = Subset(data_set, indx)
# TestSet
SAMPLE_SIZE = args.sample_size
data_set = Data_infor(padded_test_raw, dataset.test_y)
num_test = len(data_set)
indx = list(range(num_test))
all_test_set = Subset(data_set, indx)
#indx = random.sample(indx, SAMPLE_SIZE)
with open('attack_results_final_200.pkl', 'rb') as f:
results= pickle.load(f)
seqs = []
lens = []
tgts = []
for i in range(len(results[1])):
if np.array(results[1][i]).shape == ():
continue
seqs.append(results[1][i])
lens.append(results[2][i])
tgts.append(results[3][i])
seqs = torch.tensor(seqs)
lens = torch.tensor(lens)
tgts = torch.tensor(tgts)
test_set = TensorDataset(seqs, lens, tgts)
all_test_loader = DataLoader(test_set, batch_size = 128, shuffle = True)
lstm_size = 128
rnn_state_save = os.path.join(file_path,'best_lstm_0.7_0.001_200')
model = SentimentAnalysis(batch_size=lstm_size, embedding_matrix = embedding_matrix, hidden_size = lstm_size, kept_prob = 0.7, num_layers=nlayer, bidirection=bidirection)
model.load_state_dict(torch.load(rnn_state_save))
model = model.to(device)
model.eval()
test_pred = torch.tensor([])
test_targets = torch.tensor([])
with torch.no_grad():
for batch_index, (seqs, length, target) in enumerate(all_test_loader):
seqs, target, length = seqs.to(device), target.to(device), length.to(device)
seqs = seqs.type(torch.LongTensor)
len_order = torch.argsort(length, descending = True)
length = length[len_order]
seqs = seqs[len_order]
target = target[len_order]
output, pred_out = model.pred(seqs, length, False)
test_pred = torch.cat((test_pred, pred_out.cpu()), dim = 0)
test_targets = torch.cat((test_targets, target.type(torch.float).cpu()))
accuracy = model.evaluate_accuracy(test_pred.numpy(), test_targets.numpy())
print('Test Accuracy:{:.4f}.'.format(accuracy))