Cross-lingual Evidence Improves Monolingual Fake News Detection

Daryna Dementieva, Alexander Panchenko


Abstract
Misleading information spreads on the Internet at an incredible speed, which can lead to irreparable consequences in some cases. Therefore, it is becoming essential to develop fake news detection technologies. While substantial work has been done in this direction, one of the limitations of the current approaches is that these models are focused only on one language and do not use multilingual information. In this work, we propose a new technique based on cross-lingual evidence (CE) that can be used for fake news detection and improve existing approaches. The hypothesis of the usage of cross-lingual evidence as a feature for fake news detection is confirmed, firstly, by manual experiment based on a set of known true and fake news. Besides, we compared our fake news classification system based on the proposed feature with several strong baselines on two multi-domain datasets of general-topic news and one newly fake COVID-19 news dataset showing that combining cross-lingual evidence with strong baselines such as RoBERTa yields significant improvements in fake news detection.
Anthology ID:
2021.acl-srw.32
Volume:
Proceedings of the 59th Annual Meeting of the Association for Computational Linguistics and the 11th International Joint Conference on Natural Language Processing: Student Research Workshop
Month:
August
Year:
2021
Address:
Online
Venues:
ACL | IJCNLP
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
310–320
Language:
URL:
https://aclanthology.org/2021.acl-srw.32
DOI:
10.18653/v1/2021.acl-srw.32
Bibkey:
Cite (ACL):
Daryna Dementieva and Alexander Panchenko. 2021. Cross-lingual Evidence Improves Monolingual Fake News Detection. In Proceedings of the 59th Annual Meeting of the Association for Computational Linguistics and the 11th International Joint Conference on Natural Language Processing: Student Research Workshop, pages 310–320, Online. Association for Computational Linguistics.
Cite (Informal):
Cross-lingual Evidence Improves Monolingual Fake News Detection (Dementieva & Panchenko, ACL 2021)
Copy Citation:
PDF:
https://aclanthology.org/2021.acl-srw.32.pdf
Data
NELA-GT-2018