Update README.md

README.md

@@ -6,10 +6,109 @@ language:
 
 **Data Info:**
 
+Pandemos ("Panteion Publications") is the open-access
+institutional repository of Panteion University of Social and Political Sciences,
+Athens (https://pandemos.panteion.gr). It contains doctoral dissertations, master's
+and postdoctoral theses, faculty publications and course notes, organised by
+department, including departments that no longer exist. It also hosts an archive of
+digitised Greek social-science journals.
+
+This dataset contains the full text and metadata of 20,753 documents covering a wide
+range of topics in the social and political sciences. It spans the period from 1827
+to 2026, from the *Political Constitution of Greece* (Πολιτικόν Σύνταγμα της
+Ελλάδος, 1827) to master's theses submitted in March 2026. Most documents date from
+1980 onwards, with a peak in the 2000s.
+
+Greek accounts for 92.55% of the words in the corpus, including Modern Greek,
+Katharevousa and Ancient Greek. The remaining 7.45% (~33 million of 443.6 million
+words) is non-Greek. Documents written in other languages have been removed, so this
+share consists mainly of foreign-language bibliographic references, names and terms
+embedded in Greek text, and the English sections of bilingual documents.
+
 **Dataset Structure:**
 
+## Dataset Structure
+
+### Data Files & Splits
+
+The dataset is a single Parquet file (`pandemos_clean.parquet`, 1.58 GB, zstd, 326 row groups)
+Each row is **one document** (master thesis, doctoral thesis, journal article, book, etc.) from Pandemos, the institutional repository of Panteion University. `content` holds the full text; the other 24 columns are the repository's metadata.
+
+### Data Instance
+
+Example record (long fields truncated):
+
+```json
+{
+  "title": "SEX AVATARS: συνδρομητική οικειότητα και η συναισθηματική εργασία των δημιουργών σεξουαλικού περιεχομένου στο OnlyFans",
+  "content": "ΠΑΝΤΕΙΟΝ ΠΑΝΕΠΙΣΤΗΜΙΟ ΚΟΙΝΩΝΙΚΩΝ ΚΑΙ ΠΟΛΙΤΙΚΩΝ ΕΠΙΣΤΗΜΩΝ\n\nPANTEION UNIVERSITY OF SOCIAL AND POLITICAL SCIENCES\n\nΣΧΟΛΗ ΚΟΙΝΩΝΙΚΩΝ ΕΠΙΣΤΗΜΩΝ\nΤΜΗΜΑ ΚΟΙΝΩ…",
+  "abstract_el": "Αντικείμενο της παρούσας εργασίας είναι η συνδρομητική πλατφόρμα OnlyFans…",
+  "abstract_en": "The present study examines the subscription platform OnlyFans…",
+  "description": null,
+  "title_alt": "SEX AVATARS: subscription intimacy and the emotional labor of sexual content creators on OnlyFans",
+  "authors": "Μποζιάρης, Ιωάννης; Boziaris, Ioannis; Boziaris, Ioannis",
+  "advisors": "Πετρίδης, Πέτρος; Petridis, Petros",
+  "committee_members": "Κόφτη, Δήμητρα; Κουτσούγερα, Ναταλία-Αικατερίνη; Kofti, Dimitra; KOUTSOUGERA, NATALIA AIKATERINI",
+  "subjects_el": "OnlyFans; συνδρομητική οικειότητα; συναισθηματική εργασία; πλατφορμικός καπιταλισμός; πορνογραφία; επιτήρηση",
+  "subjects_en": "OnlyFans; subscription intimacy; emotional labor; platform capitalism; pornography; surveillance",
+  "date": "2025-10-01",
+  "publisher": "Πάντειον Πανεπιστήμιο Κοινωνικών και Πολιτικών Επιστημών",
+  "department": "Social Anthropology",
+  "degree": "ΠΜΣ Κοινωνική και Πολιτισμική Ανθρωπολογία",
+  "type": "master thesis",
+  "collection_names": "Μεταπτυχιακές εργασίες",
+  "collection_paths": "Ακαδημαϊκό αποθετήριο > Τμήμα Κοινωνικής Ανθρωπολογίας > Μεταπτυχιακές εργασίες",
+  "num_collections": 1,
+  "rights": "Attribution-NonCommercial-ShareAlike 4.0 International",
+  "rights_url": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
+  "journal_issn": null,
+  "citation": null,
+  "url": "https://pandemos.panteion.gr/handle/123456789/24223",
+  "pdf_url": "https://pandemos-api.panteion.gr/server/api/core/bitstreams/3cbaafa7-7c1e-4ace-8c80-9d993edc2098/content"
+}
+```
+
+### Data Fields
+
+| Field | Type | Description |
+|---|---|---|
+| `title` | string | Document title |
+| `content` | string | Full text extracted from the PDF and cleaned (see *Data Cleaning*) |
+| `abstract_el` | string, nullable | Greek abstract |
+| `abstract_en` | string, nullable | English abstract |
+| `description` | string, nullable | Free-text note from the repository |
+| `title_alt` | string, nullable | Alternative (usually English) title |
+| `authors` | string, nullable | Authors; multiple values separated by `; ` |
+| `advisors` | string, nullable | Supervisors (theses); `; `-separated |
+| `committee_members` | string, nullable | Examination committee; `; `-separated |
+| `subjects_el` | string, nullable | Subject headings / keywords; `; `-separated |
+| `subjects_en` | string, nullable | English keywords; `; `-separated |
+| `date` | string, nullable | Date as given by the repository (`YYYY`, `YYYY-MM`, `YYYY-MM-DD` or `DD/MM/YY`) |
+| `publisher` | string, nullable | Publisher |
+| `department` | string, nullable | Panteion University department |
+| `degree` | string, nullable | Postgraduate programme (for theses) |
+| `type` | string, nullable | Document type (`journal article`, `master thesis`, `doctoral thesis`, `book`, … — 23 values) |
+| `collection_names` | string | Repository collection(s); `; `-separated |
+| `collection_paths` | string | Collection hierarchy, levels separated by ` > ` |
+| `num_collections` | int64 | Number of collections the item belongs to (1–3) |
+| `rights` | string, nullable | License (mostly CC BY-NC-ND 4.0 or CC0 1.0) |
+| `rights_url` | string, nullable | License URL |
+| `journal_issn` | string, nullable | ISSN for journal articles |
+| `citation` | string, nullable | Bibliographic citation |
+| `url` | string | Item page on Pandemos — **unique key** |
+| `pdf_url` | string | Link to the source PDF |
+
+
 **Dataset Statistics:**
 
+Documents:20.753
+
+BERT tokens: 697.025.128
+
+Words: 443.645.557
+
+Size: 1,58 GB
+
 Tokens:
 
 Words:
@@ -19,7 +118,9 @@ Words:
 The data originates from the Institutional Repository / Digital Library of Panteion University and is available at https://pandemos.panteion.gr/home. 
 Its usage is strictly for research and scientific purposes, according to the terms of the Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) License.
 
-**For feedback contact:** glossapi.team@eellak.gr
+**For feedback contact:** 
+
+glossapi.team@eellak.gr
 
 
 **Gated Access**