Update README.md

README.md

@@ -1,6 +1,5 @@
 ---
-license:
-- apache-2.0
+license: cc-by-4.0
 task_categories:
 - translation
 language:
@@ -42,6 +41,27 @@ Each row in the dataset includes the following columns:
 - **VA**: A sentence in Valencian.
 - **ES**: The corresponding translation of the Valencian sentence in Spanish.
 - **Source**: The name of the source file from which the sentence pair was extracted.
+## Dataset Creation
+
+### Curation Rationale
+
+This dataset is aimed at promoting the development of Machine Translation
+between Valencian and Spanish, supporting research in multilingual NLP
+and facilitating the development of translation systems for these language pairs.
+
+### Source Data
+
+The parallel data in this dataset is extracted from web documents published by the [Boletín Oficial de la Universidad de Alicante (BOUA).](https://www.boua.ua.es/es).
+
+### Data Filtering and Normalization
+
+All data underwent rigorous filtering and normalization:
+- **Alignment filtering**: Sentence- and paragraph-level alignments were calculated with the [`gplsi
+translation-alignment` tool](https://github.com/gplsi/translation-alignment).
+- **Language identification**: Valencian documents are filtered using a private discriminative tool to differentiate them from Catalan.
+- **Deduplication:** The filtered datasets were deduplicated to remove redundant sentence pairs
+
+The filtered and normalized datasets were then concatenated to form the final corpus.
 
 ## Funding
 
@@ -80,4 +100,4 @@ The University of Alicante, as the owner and creator of the model, shall not be
 
 ## License
 
-[Apache License, Version 2.0](https://www.apache.org/licenses/LICENSE-2.0)
+This work is licensed under a [Creative Commons Attribution 4.0 International (CC BY 4.0)](https://creativecommons.org/licenses/by/4.0/) licence.