Update README.md

README.md

@@ -49,6 +49,8 @@ Experiments on 15 LVLMs show that even state-of-the-art models such as GPT-4o ac
 Furthermore, the decoupled evaluation based on this benchmark across different models highlights substantial opportunities for improvement in both visual and linguistic modules.
 The dataset reviewer above illustrates 129 samples from VisualSimpleQA-hard.
 
+`arXiv:` [https://arxiv.org/pdf/2503.06492](https://arxiv.org/pdf/2503.06492)
+
 **Data Example:**
 ```
   {'id': 369,