Alice Mary Barbara Heeley · PyLaia · Published January 14, 2026
Late 13th Century Old Icelandic AM 519 a 4to - Diplomatic
Text Recognition
Description
This diplomatic model is based on the late 13th century Old Icelandic manuscript AM 519 a 4to. The images used for this model were sourced from handrit.is. The diplomatic transcription used for the model was made by Andrea de Leeuw van Weenen and was sourced from the Medieval Nordic Text Archive (MENOTA).
This model was created as part of a Master’s thesis project researching the limitations of HTR on Old Icelandic manuscripts.
Training parameters used within Transkribus: images converted to black & white, 200 training cycles, 10% validation set (automatic).
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Low error rate5.23% CER
Character Error Rate (CER) measures the percentage of characters incorrectly recognised. Lower is better. This model scored 5.23% on its validation set. As a rule of thumb, a CER below 10% is considered good for most handwritten material.
Measured on the model's own validation data. Results on your documents may differ depending on handwriting style, document condition, language, and how closely your material resembles the training data.
Words43,110
Lines2,271
Training Pages65
Model ID471045