Update chess_ground-targz.py

chess_ground-targz.py

@@ -59,7 +59,7 @@ class ChessImageTextDataset(datasets.GeneratorBasedBuilder):
         ]
 
     def _generate_examples(self, image_tar_path, text_filepath):
-        """Generate examples by linking images with multiple related texts."""
+        """Generate examples by linking images with multiple related texts and clean up the text data."""
         idx = 0
         # Extract and map text IDs to their corresponding images
         image_mapping = self._extract_images_from_tar(image_tar_path)
@@ -85,11 +85,14 @@ class ChessImageTextDataset(datasets.GeneratorBasedBuilder):
             
             # Ensure the image exists and yield the example
             if image_file:
-                # Join the texts related to the same image
-                combined_text = " ".join(texts)
+                # Clean the text to keep only chess notation
+                cleaned_texts = [self._extract_chess_notation(text) for text in texts]
+                
+                # Join the cleaned notations related to the same image
+                combined_text = " ".join(cleaned_texts)
                 yield idx, {
                     "image": image_file,
-                    "text": combined_text,  # Link all related texts together
+                    "text": combined_text,  # Link all related cleaned notations together
                 }
                 idx += 1
             else:
@@ -97,7 +100,6 @@ class ChessImageTextDataset(datasets.GeneratorBasedBuilder):
 
     def _extract_images_from_tar(self, tar_path):
         """Extracts the images from the tar.gz archive and returns a mapping of image filenames to file paths."""
-        
         image_mapping = {}
         extraction_directory = "images_extracted"  # Temporary directory to store extracted images
         os.makedirs(extraction_directory, exist_ok=True)
@@ -118,3 +120,9 @@ class ChessImageTextDataset(datasets.GeneratorBasedBuilder):
                     image_mapping[image_filename] = extracted_image_path
         
         return image_mapping
+
+    def _extract_chess_notation(self, text):
+        """Extracts the chess notation from the full text string."""
+        # Assuming the chess notation comes after the filename and space, e.g., '001_0_30_white.png Rxc6'
+        notation = text.split(" ", 1)[-1]  # Extract everything after the first space
+        return notation.strip()