Data · dataset · 2023
A tailored Handwritten-Text-Recognition System for Medieval Latin
Listed in BERD@NFDI Data Portal
The Bavarian Academy of Sciences and Humanities aims to digitize its Medieval Latin Dictionary.
Description
This dictionary entails record cards referring to lemmas in medieval Latin, a low-resource language. A crucial step of the digitization process is the Handwritten Text Recognition (HTR) of the handwritten lemmas found on these record cards.
In our work, we introduce an end-to-end pipeline, tailored to the medieval Latin dictionary, for locating, extracting, and transcribing the lemmas. We employ two state-of-the-art (SOTA) image segmentation models to prepare the initial data set for the HTR task. Furthermore, we experiment with different transformer-based models and conduct a set of experiments to explore the capabilities of different combinations of vision encoders with a GPT-2 decoder.
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Additionally, we also apply extensive data augmentation resulting in a highly competitive model. The best-performing setup achieved a Character Error Rate (CER) of 0.015, which is even superior to the commercial Google Cloud Vision model, and shows more stable performance.
Links
Where it is published
- BERD@NFDI Data Portal record berd-platform.de/records/png8v-rq655 ↗
landing page · from berd platform de
Catalogue records · 1
- InvenioRDM API berd-platform.de/api/records/png8v-rq655 ↗
metadata API · from berd platform de
Topics
- From keywords
- Economics & Finance
- Inferred from text
- Image 75% · Optical character recognition 65% · Text 75%
Provenance · 1 source records, 10 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| BERD@NFDI Data Portal | png8v-rq655 | 8 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · berd platform de | connector:berd_platform_de@1.0.0 | |
| concepts[field].local:field:economics-finance | mapping · berd platform de | connector:berd_platform_de@1.0.0 | |
| concepts[method].local:method:ocr | enrichment · berd platform de | keyword-concept-rules@1.0.0 | title+description (65%) |
| concepts[modality].local:modality:image | enrichment · berd platform de | keyword-concept-rules@1.0.0 | title+description (75%) |
| concepts[modality].local:modality:text | enrichment · berd platform de | keyword-concept-rules@1.0.0 | title+description (75%) |
| description | source · berd platform de | connector:berd_platform_de@1.0.0 | /metadata/description |
| license | source · berd platform de | connector:berd_platform_de@1.0.0 | |
| publication_date | source · berd platform de | connector:berd_platform_de@1.0.0 | |
| title | source · berd platform de | connector:berd_platform_de@1.0.0 | /metadata/title |
| updated_date | source · berd platform de | connector:berd_platform_de@1.0.0 |