task_categories:
- text-generation
- fill-mask
- feature-extraction
language:
- el
tags:
- greek
- archaeology
- historical
- ocr
- pdf
- scientific-publications
pretty_name: Archetai Dataset
size_categories:
- n<1K
license: cc-by-4.0
Archetai
Dataset Language:
Greek (with a small number of foreign-language items, mostly English, German, and French summaries or full volumes inside the same collections)
Dataset Info:
This dataset consists of OCR-extracted text from the digital publications archive of the Archaeological Society at Athens (Η εν Αθήναις Αρχαιολογική Εταιρεία, archetai.gr). The Society, founded in 1837, is one of the oldest learned societies in Greece and the principal Greek institution conducting and publishing archaeological research. Its publications cover excavation reports, epigraphy, art history, monument conservation, and related historical and philological scholarship spanning from the mid-19th century to the present. Each record in the dataset corresponds to a single PDF volume, monograph, or issue from one of five publication series.
Metadata Info:
This dataset consists of 814 records, structured as a flat tabular dataset with three string-typed columns. Each row is uniquely identified by its pdf_url. The collection column carries one of five categorical labels that align one-to-one with the five subdirectories of the source archive (bae, efimeris, praktika, mentor, ergon).
Metadata Field Descriptions:
| Field | Type | Description |
|---|---|---|
collection |
string | One of five categorical labels indicating the publication series the volume belongs to: ΒΑΕ (Βιβλιοθήκη) - Βιβλιοθήκη της εν Αθήναις Αρχαιολογικής Εταιρείας, the Society's monograph "Library" series (325 volumes); ΑΕ (Εφημερίς) - Αρχαιολογική Εφημερίς, the Archaeological Journal of the Society (162 volumes); ΠΑΕ (Πρακτικά) - Πρακτικά της εν Αθήναις Αρχαιολογικής Εταιρείας, the annual Proceedings (140 volumes); Μέντωρ - Μέντωρ, the Society's news bulletin (121 issues); Έργον - Το Έργον της Αρχαιολογικής Εταιρείας, the annual report of fieldwork activity (66 volumes). |
content |
string | Full OCR-extracted text of the source PDF, preserving paragraph breaks via newline characters. Length ranges from 34 to 2,149,399 characters (median ≈ 329 K). The shortest records are essentially empty extractions and represent PDFs from which little or no text could be recovered (typically image-only scans). Because the source documents are PDFs of scanned print, expect OCR-grade noise - see "Known Data Quality Notes" below. |
pdf_url |
string | Direct HTTPS link to the source PDF on www.archetai.gr (e.g., https://www.archetai.gr/images/pdfs/bae/BAE_4.pdf). Always populated, always under that domain, and unique per row. The path segment after /pdfs/ matches the collection value: bae ↔ ΒΑΕ, efimeris ↔ ΑΕ, praktika ↔ ΠΑΕ, mentor ↔ Μέντωρ, ergon ↔ Έργον. |
Dataset Statistics:
Records:
814
Words:
52,667,669
Tokens:
106,932,717
(WordPiece tokens from nlpaueb/bert-base-greek-uncased-v1, computed only on the content column.)
Size: 265.71 MB
Known Data Quality Notes:
The source documents are scanned PDFs spanning from 1837 to the present, and the content column carries the OCR output of those scans. Some level of OCR noise is therefore expected and inherent to the source material - older volumes in particular combine polytonic and monotonic Greek, ligatures, and 19th-century printing conventions that no OCR engine handles perfectly. Our policy is to publish the OCR output as faithfully as possible to the underlying scans rather than aggressively post-process it: this preserves reproducibility and lets downstream users apply their own filtering or re-OCR strategy as appropriate to their task.
License:
This dataset is licensed under the Creative Commons Attribution 4.0 International (CC BY 4.0) license. The underlying publications are produced by the Archaeological Society at Athens (Η εν Αθήναις Αρχαιολογική Εταιρεία) and are made openly accessible by the publisher through archetai.gr - see the publisher's notice on its homepage stating that its publications (except the last five years) are digitized with free access. When using this dataset, please attribute both the original publisher and this derivative compilation:
Archetai Dataset, derived from the open-access publications of the Archaeological Society at Athens (
archetai.gr), licensed under CC BY 4.0.