fix: subdir extract

facial-emotion-recognition-dataset.py

@@ -77,7 +77,7 @@ class FacialEmotionRecognitionDataset(datasets.GeneratorBasedBuilder):
         images = [images[i:i + 8] for i in range(0, len(images), 8)]
 
         for idx, images_set in enumerate(images):
-            set_id = int(images_set[0].split('/')[-2])
+            set_id = int(images_set[0].split('/')[2])
             data = {'set_id': set_id}
 
             for file in images_set: