Investigating OCR-Sensitive Neurons to Improve Entity Recognition in Historical Documents

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Hauptverfasser: Boros, Emanuela, Ehrmann, Maud
Format: Preprint
Veröffentlicht: 2024
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author Boros, Emanuela
Ehrmann, Maud
author_facet Boros, Emanuela
Ehrmann, Maud
contents This paper investigates the presence of OCR-sensitive neurons within the Transformer architecture and their influence on named entity recognition (NER) performance on historical documents. By analysing neuron activation patterns in response to clean and noisy text inputs, we identify and then neutralise OCR-sensitive neurons to improve model performance. Based on two open access large language models (Llama2 and Mistral), experiments demonstrate the existence of OCR-sensitive regions and show improvements in NER performance on historical newspapers and classical commentaries, highlighting the potential of targeted neuron modulation to improve models' performance on noisy text.
format Preprint
id arxiv_https___arxiv_org_abs_2409_16934
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Investigating OCR-Sensitive Neurons to Improve Entity Recognition in Historical Documents
Boros, Emanuela
Ehrmann, Maud
Computation and Language
Artificial Intelligence
This paper investigates the presence of OCR-sensitive neurons within the Transformer architecture and their influence on named entity recognition (NER) performance on historical documents. By analysing neuron activation patterns in response to clean and noisy text inputs, we identify and then neutralise OCR-sensitive neurons to improve model performance. Based on two open access large language models (Llama2 and Mistral), experiments demonstrate the existence of OCR-sensitive regions and show improvements in NER performance on historical newspapers and classical commentaries, highlighting the potential of targeted neuron modulation to improve models' performance on noisy text.
title Investigating OCR-Sensitive Neurons to Improve Entity Recognition in Historical Documents
topic Computation and Language
Artificial Intelligence
url https://arxiv.org/abs/2409.16934