Update readme

README.md

@@ -14,4 +14,13 @@ task_categories:
   - image-to-text
 task_ids:
   - image-captioning
----
+---
+# COCO 2017 image captions in Vietnamese
+
+The dataset is firstly introduced in [dinhanhx/VisualRoBERTa](https://github.com/dinhanhx/VisualRoBERTa/tree/main). I use VinAI tools to translate [COCO 2027 image caption](https://cocodataset.org/#download) (2017 Train/Val annotations) from English to Vietnamese. Then we merge [UIT-ViIC](https://arxiv.org/abs/2002.00175) dataset into it. To load the dataset, one can take a look at [this code in VisualRoBERTa](https://github.com/dinhanhx/VisualRoBERTa/blob/main/src/data.py#L22-L100).
+
+I provide both English original and Vietnamese version (including UIT-ViIC). 
+
+⚠ Note:
+- UIT-ViIC splits are originated from `en/captions_train2017.json`. Therefore, I combine all UIT-ViIC splits then I merge into `vi/captions_train2017_trans.json`. As a result, I get `captions_train2017_trans_plus.json`.
+- `vi/captions_train2017_trans.json` and `vi/captions_val2017_trans.json` are VinAI-translated from the ones in `en/`.