Portuguese Typewritten 20th century

Free Public AI Model for Handwritten Text Recognition with Transkribus

Portuguese Typewritten 20th century

This model is created from Portuguese typewritten transcriptions from the mid-XXth century, which are based on a confraternity Statute from the XVIIIth century.

A great number of documents from Minas Gerais in the XVIIIth century have been transcribed by researchers from the SPHAN (Serviço do Patrimônio Histórico e Artístico Nacional 1936-1970). These transcriptions were then typewritten and are now available digitally in IPHAN´s archives.

This model allows a fast and reliable recognition of these types of documents. When training the model, we followed as much as possible the exact characters and spacing in the original (even when there was lapsus calamus), to teach the model to read exactly what is there.

The diacritics have been maintained as in the original, except when faded or they were too far away from the letter, in those cases we ignored them. Comas, stop points, and others have remained exactly where they are shown. The markings of a line change, although sometimes appearing at the bottom of the word, have been standardized after the last letter of the line. Letters that are absent or too faded have been ignored, leaving a space where they should be.

The model serves as an excellent starting point for training your own custom Portuguese typewritten model and can be included in the training configuration as a basemodel. The creator of this model has also expressed plans to improve it in the future.

Model Overview

Name:
XXth century Typewritten Portuguese
Creator:
Natalia C. Salvador
Model ID:
56926
Century:
20th
Languages:
Portuguese
Script:
Latin alphabet
Engine:
PyLaia
Material:
Typewritten
CER on validation set:
2.6 %
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XXth century Typewritten Portuguese is freely available to everyone

Get started with Transkribus and use it for your own Material
You can use this model to automatically transcribe Typewritten documents with Handwritten Text Recgnition in Transkribus. This model can be used in the Transkribus Expert Client as well as in Transkribus Lite.
This AI model was trained to automatically convert text from images of historical Latin alphabet documents into editable and searchable text.