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Publication . Article . Other literature type . Preprint . 2021

Combining Visual and Textual Features for Semantic Segmentation of Historical Newspapers

Raphaël Barman; Maud Ehrmann; Simon Clematide; Sofia Ares Oliveira; Frédéric Kaplan;
Open Access
English
Abstract

The massive amounts of digitized historical documents acquired over the last decades naturally lend themselves to automatic processing and exploration. Research work seeking to automatically process facsimiles and extract information thereby are multiplying with, as a first essential step, document layout analysis. Although the identification and categorization of segments of interest in document images have seen significant progress over the last years thanks to deep learning techniques, many challenges remain with, among others, the use of more fine-grained segmentation typologies and the consideration of complex, heterogeneous documents such as historical newspapers. Besides, most approaches consider visual features only, ignoring textual signal. We introduce a multimodal neural model for the semantic segmentation of historical newspapers that directly combines visual features at pixel level with text embedding maps derived from, potentially noisy, OCR output. Based on a series of experiments on diachronic Swiss and Luxembourgish newspapers, we investigate the predictive power of visual and textual features and their capacity to generalize across time and sources. Results show consistent improvement of multimodal models in comparison to a strong visual baseline, as well as better robustness to the wide variety of our material.

Subjects by Vocabulary

Microsoft Academic Graph classification: Newspaper Multimodal learning Image segmentation Context (language use) Artificial intelligence business.industry business Deep learning Computer science Categorization Document layout analysis Segmentation Natural language processing computer.software_genre computer

Library of Congress Subject Headings: lcsh:History of scholarship and learning. The humanities lcsh:AZ20-999 lcsh:Bibliography. Library science. Information resources lcsh:Z

Subjects

Computer Science - Computer Vision and Pattern Recognition, Computer Science - Computation and Language, Computer Science - Information Retrieval, Computer Science - Machine Learning, Computer Vision and Pattern Recognition (cs.CV), Computation and Language (cs.CL), Information Retrieval (cs.IR), Machine Learning (cs.LG), FOS: Computer and information sciences, 000 Computer science, knowledge & systems, 410 Linguistics, 10105 Institute of Computational Linguistics, historical newspapers, image segmentation, multimodal learning, deep learning, digital humanitites, Computer Science, Computer Vision and Pattern Recognition, Computation and Language, Information Retrieval, Machine Learning

Funded by
SNSF| Media Monitoring of the Past
Project
  • Funder: Swiss National Science Foundation (SNSF)
  • Project Code: 173719
  • Funding stream: Programmes | Sinergia
Related to Research communities
Digital Humanities and Cultural Heritage
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