Context in Informational Bias Detection

Esther van den Berg, Katja Markert


Abstract
Informational bias is bias conveyed through sentences or clauses that provide tangential, speculative or background information that can sway readers’ opinions towards entities. By nature, informational bias is context-dependent, but previous work on informational bias detection has not explored the role of context beyond the sentence. In this paper, we explore four kinds of context for informational bias in English news articles: neighboring sentences, the full article, articles on the same event from other news publishers, and articles from the same domain (but potentially different events). We find that integrating event context improves classification performance over a very strong baseline. In addition, we perform the first error analysis of models on this task. We find that the best-performing context-inclusive model outperforms the baseline on longer sentences, and sentences from politically centrist articles.
Anthology ID:
2020.coling-main.556
Volume:
Proceedings of the 28th International Conference on Computational Linguistics
Month:
December
Year:
2020
Address:
Barcelona, Spain (Online)
Editors:
Donia Scott, Nuria Bel, Chengqing Zong
Venue:
COLING
SIG:
Publisher:
International Committee on Computational Linguistics
Note:
Pages:
6315–6326
Language:
URL:
https://aclanthology.org/2020.coling-main.556
DOI:
10.18653/v1/2020.coling-main.556
Bibkey:
Cite (ACL):
Esther van den Berg and Katja Markert. 2020. Context in Informational Bias Detection. In Proceedings of the 28th International Conference on Computational Linguistics, pages 6315–6326, Barcelona, Spain (Online). International Committee on Computational Linguistics.
Cite (Informal):
Context in Informational Bias Detection (van den Berg & Markert, COLING 2020)
Copy Citation:
PDF:
https://aclanthology.org/2020.coling-main.556.pdf
Code
 vdenberg/context-in-informational-bias-detection
Data
BASIL