Update README.md

README.md

@@ -1,34 +1,50 @@
----
-license: mit
-dataset_info:
-  features:
-  - name: repo_name
-    dtype: string
-  - name: sub_path
-    dtype: string
-  - name: file_name
-    dtype: string
-  - name: file_ext
-    dtype: string
-  - name: file_size_in_byte
-    dtype: int64
-  - name: line_count
-    dtype: int64
-  - name: lang
-    dtype: string
-  - name: program_lang
-    dtype: string
-  - name: doc_type
-    dtype: string
-  splits:
-  - name: The_Stack_V2
-    num_bytes: 46577045485
-    num_examples: 336845710
-  download_size: 20019085005
-  dataset_size: 46577045485
-configs:
-- config_name: default
-  data_files:
-  - split: The_Stack_V2
-    path: data/The_Stack_V2-*
----
+---
+license: mit
+dataset_info:
+  features:
+  - name: repo_name
+    dtype: string
+  - name: sub_path
+    dtype: string
+  - name: file_name
+    dtype: string
+  - name: file_ext
+    dtype: string
+  - name: file_size_in_byte
+    dtype: int64
+  - name: line_count
+    dtype: int64
+  - name: lang
+    dtype: string
+  - name: program_lang
+    dtype: string
+  - name: doc_type
+    dtype: string
+  splits:
+  - name: The_Stack_V2
+    num_bytes: 46577045485
+    num_examples: 336845710
+  download_size: 20019085005
+  dataset_size: 46577045485
+configs:
+- config_name: default
+  data_files:
+  - split: The_Stack_V2
+    path: data/The_Stack_V2-*
+---
+
+
+This dataset consists of meta information (including the repository and file path of files) of the raw code data from **RefineCode**.
+
+**Note:** Currently, we have uploaded the meta data covered by The Stack V2. We are working hard to make the remaining part available.
+
+---
+**RefineCode** is a **high-quality**, **reproducible** code pretraining corpus comprising **960 billion** tokens across **607** programming languages and **75 billion** code-related token recalled from web corpus, incorporating over **130** language-specific rules with customized weight assignments. 
+Our dataset shows better training efficacy and efficiency compared with the training subset of The Stack V2.
+
+<img src="https://raw.githubusercontent.com/OpenCoder-llm/opencoder-llm.github.io/refs/heads/main/static/images/opencoder_banner.png" alt="OpenCoder banner" style="zoom:30%;" />
+
+We also use PCA to visualize the embeddings extracted from CodeBERT for The Stack V2 and **RefineCode**, showing a clear advance of our pretraining dataset.
+
+<img src="https://raw.githubusercontent.com/OpenCoder-llm/opencoder-llm.github.io/refs/heads/main/static/images/compare_refinecode_stack_v2.jpg" alt="Distribution Comparsion" style="zoom:50%;" />
+