Update CC6204-Hackaton-Cub-Dataset.py

CC6204-Hackaton-Cub-Dataset.py

@@ -29,7 +29,6 @@ _URLS = {
 # Create id-to-label dictionary using the classes file
 classes = get(_URLS["classes"]).iter_lines()
 logger.info(f"classes: {classes}")
-
 _ID2LABEL = {}
 for row in classes:
    row = row.decode("UTF8")
@@ -41,6 +40,7 @@ logger.info(f"_ID2LABEL: {_ID2LABEL}")
 
 _NAMES = list(_ID2LABEL.values())
 
+
 # build from images.txt: a mapping from image_file_name -> id
 imgpath_to_ids = get(_URLS["images"]).iter_lines()
 _IMGNAME2ID = {}
@@ -49,7 +49,18 @@ for row in imgpath_to_ids:
    if row != "":
       idx, img_name = row.split(" ")
       _IMGNAME2ID[os.path.basename(img_name)] = int(idx)
-   
+  
+    
+# Create TRAIN_IDX_SET
+train_test_split = get(_URLS["train_test_split"]).iter_lines()
+_TRAIN_IDX_SET = set()
+for row in train_test_split:
+   row = row.decode("UTF8")
+   for row != "":
+      idx, train_bool = row.split(" ")
+      # 1: train, 0: test
+      if train_bool == "1":
+         _TRAIN_IDX_SET.add(int(idx))
 
 
 class CubDataset(datasets.GeneratorBasedBuilder):
@@ -71,12 +82,7 @@ class CubDataset(datasets.GeneratorBasedBuilder):
       )
       
       
-   def _split_generators(self, dl_manager):
-      # 1: train, 0: test
-      train_test_split = get(_URLS["train_test_split"]).iter_lines()
-      train_images_idx = set([int(x.decode("UTF8").split(" ")[0]) for x in train_test_split if x.decode("UTF8").split(" ")[1] == "1"])
-      logger.info(f"train_images_idx length: {len(train_images_idx)}")
-      
+   def _split_generators(self, dl_manager):      
       train_files = []
       test_files = []
       
@@ -86,7 +92,7 @@ class CubDataset(datasets.GeneratorBasedBuilder):
       for batch in data_files:
          path_files = dl_manager.iter_files(batch)
          for img in path_files:
-            if _IMGNAME2ID[os.path.basename(img)] in train_images_idx:
+            if _IMGNAME2ID[os.path.basename(img)] in _TRAIN_IDX_SET:
                train_files.append(img)
             else:
                test_files.append(img)