Update README.md

README.md

@@ -30,7 +30,40 @@ language:
 - en
 - es
 ---
+## Dataset Description
 
+This dataset contains a high-quality, real (non-synthetic) parallel corpus in the **scientific and academic domain**, covering **Basque (eu), Spanish (es), and English (en)**. 
+
+Unlike synthetically generated datasets, this corpus is built from genuine, human-authored trilingual abstracts extracted from **ADDI** (*Archivo Digital de Docencia e Investigación*), the institutional digital repository of the University of the Basque Country (UPV/EHU). It is specifically designed to support the training, fine-tuning, and evaluation of Machine Translation systems and Large Language Models (LLMs) for specialized scientific text.
+
+## Source Data
+
+The raw documents were scraped and curated from multiple academic collections within the ADDI repository. The texts are predominantly published under Creative Commons licenses.
+
+**Document Types Included:**
+* Doctoral Theses
+* Master's Theses (Trabajos de Fin de Máster)
+* Bachelor's Theses (Trabajos de Fin de Grado)
+* Academic Journals and Journal Articles
+
+**Metadata Included:**
+Each parallel record in the dataset is accompanied by rich metadata to facilitate targeted filtering. *(Note: To ensure privacy, author and supervisor names have been explicitly anonymized).*
+* **Publication Date**
+* **Submission Date**
+* **URI** (Original source link)
+* **Language** (The main language of the full publication)
+* **License**
+* **Title**
+* **Department**
+
+The dataset consists of **3,294 perfectly aligned trilingual documents** (yielding 3,294 tuples of Basque, Spanish, and English). 
+
+| Metric | Basque (EU) | Spanish (ES) | English (EN) |
+|---|---|---|---|
+| **Total Documents** | 3,294 | 3,294 | 3,294 |
+
+
+*(Note: The lower average word count in Basque compared to Spanish and English, despite similar character counts, reflects the agglutinative morphological nature of the Basque language).*
 
 ##  License