Towards Quantifying Magnitude of Political Bias in News Articles Using a Novel Annotation Schema

Lalitha Kameswari, Radhika Mamidi


Abstract
Media bias is a predominant phenomenon present in most forms of print and electronic media such as news articles, blogs, tweets, etc. Since media plays a pivotal role in shaping public opinion towards political happenings, both political parties and media houses often use such sources as outlets to propagate their own prejudices to the public. There has been some research on detecting political bias in news articles. However, none of it attempts to analyse the nature of bias or quantify the magnitude ofthe bias in a given text. This paper presents a political bias annotated corpus viz. PoBiCo-21, which is annotated using a schema specifically designed with 10 labels to capture various techniques used to create political bias in news. We create a ranking of these techniques based on their contribution to bias. After validating the ranking, we propose methods to use it to quantify the magnitude of bias in political news articles.
Anthology ID:
2021.ranlp-1.76
Volume:
Proceedings of the International Conference on Recent Advances in Natural Language Processing (RANLP 2021)
Month:
September
Year:
2021
Address:
Held Online
Editors:
Ruslan Mitkov, Galia Angelova
Venue:
RANLP
SIG:
Publisher:
INCOMA Ltd.
Note:
Pages:
671–678
Language:
URL:
https://aclanthology.org/2021.ranlp-1.76
DOI:
Bibkey:
Cite (ACL):
Lalitha Kameswari and Radhika Mamidi. 2021. Towards Quantifying Magnitude of Political Bias in News Articles Using a Novel Annotation Schema. In Proceedings of the International Conference on Recent Advances in Natural Language Processing (RANLP 2021), pages 671–678, Held Online. INCOMA Ltd..
Cite (Informal):
Towards Quantifying Magnitude of Political Bias in News Articles Using a Novel Annotation Schema (Kameswari & Mamidi, RANLP 2021)
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PDF:
https://aclanthology.org/2021.ranlp-1.76.pdf