update datasets

datasets/gtsrb.py

@@ -7,7 +7,6 @@ import torch.utils.data as data
 from torch.utils.data.sampler import SubsetRandomSampler
 import numpy as np
 
-
 def get_gtsrb(dataset_root, batch_size, train):
     """Get GTSRB datasets loader."""
     shuffle_dataset = True
@@ -36,9 +35,11 @@ def get_gtsrb(dataset_root, batch_size, train):
     train_sampler = SubsetRandomSampler(train_indices)
     valid_sampler = SubsetRandomSampler(val_indices)
 
-    gtsrb_dataloader_train = torch.utils.data.DataLoader(gtsrb_dataset, batch_size=batch_size,
+    if train:
+        gtsrb_dataloader_train = torch.utils.data.DataLoader(gtsrb_dataset, batch_size=batch_size,
                                                sampler=train_sampler)
-    gtsrb_dataloader_test = torch.utils.data.DataLoader(gtsrb_dataset, batch_size=batch_size,
+        return gtsrb_dataloader_train
+    else:
+        gtsrb_dataloader_test = torch.utils.data.DataLoader(gtsrb_dataset, batch_size=batch_size,
                                                     sampler=valid_sampler)
-
-    return gtsrb_dataloader_train, gtsrb_dataloader_test
+        return gtsrb_dataloader_test

datasets/synsigns.py

@@ -49,7 +49,6 @@ def get_synsigns(dataset_root, batch_size, train):
     ])
 
     # datasets and data_loader
-    # using first 90K samples as training set
     train_list = os.path.join(dataset_root, 'train_labelling.txt')
     synsigns_dataset = GetLoader(
         data_root=os.path.join(dataset_root),
@@ -57,6 +56,6 @@ def get_synsigns(dataset_root, batch_size, train):
         transform=pre_process)
 
     synsigns_dataloader = torch.utils.data.DataLoader(
-        dataset=synsigns_dataset, batch_size=batch_size, shuffle=True, num_workers=0)
+        dataset=synsigns_dataset, batch_size=batch_size, shuffle=True, num_workers=8)
 
     return synsigns_dataloader