Generation of Replacement Options in Text Sanitization

Annika Willoch Olstad, Anthi Papadopoulou, Pierre Lison


Abstract
The purpose of text sanitization is to edit text documents to mask text spans that may directly or indirectly reveal personal information. An important problem in text sanitization is to find less specific, yet still informative replacements for each text span to mask. We present an approach to generate possible replacements using a combination of heuristic rules and an ontology derived from Wikidata. Those replacement options are hierarchically structured and cover various types of personal identifiers. Using this approach, we extend a recently released text sanitization dataset with manually selected replacements. The outcome of this data collection shows that the approach is able to suggest appropriate replacement options for most text spans.
Anthology ID:
2023.nodalida-1.30
Volume:
Proceedings of the 24th Nordic Conference on Computational Linguistics (NoDaLiDa)
Month:
May
Year:
2023
Address:
Tórshavn, Faroe Islands
Editors:
Tanel Alumäe, Mark Fishel
Venue:
NoDaLiDa
SIG:
Publisher:
University of Tartu Library
Note:
Pages:
292–300
Language:
URL:
https://aclanthology.org/2023.nodalida-1.30
DOI:
Bibkey:
Cite (ACL):
Annika Willoch Olstad, Anthi Papadopoulou, and Pierre Lison. 2023. Generation of Replacement Options in Text Sanitization. In Proceedings of the 24th Nordic Conference on Computational Linguistics (NoDaLiDa), pages 292–300, Tórshavn, Faroe Islands. University of Tartu Library.
Cite (Informal):
Generation of Replacement Options in Text Sanitization (Olstad et al., NoDaLiDa 2023)
Copy Citation:
PDF:
https://aclanthology.org/2023.nodalida-1.30.pdf