Update README.md

README.md

@@ -20,4 +20,20 @@ peersum_val = peersum_all.filter(lambda s: s['label'] == 'val')
 peersum_test = peersum_all.filter(lambda s: s['label'] == 'test')
 ```
 
+The Huggingface dataset is mainly for multi-document summarization. Each sample comprises information with the following keys:
+```
+* paper_id: str (a link to the raw data)
+* paper_title: str
+* paper_abstract, str
+* paper_acceptance, str
+* meta_review, str
+* review_ids, list(str)
+* review_writers, list(str)
+* review_contents, list(str)
+* review_ratings, list(int)
+* review_confidences, list(int)
+* review_reply_tos, list(str)
+* label, str, (train, val, test)
+```
+
 You can also download the raw data from [Google Drive](https://drive.google.com/drive/folders/1SGYvxY1vOZF2MpDn3B-apdWHCIfpN2uB?usp=sharing). The raw data comprises more information and it can be used for other analysis for peer reviews.