Exploring Two Decades of Parliamentary Speeches on the Use of Narratives

Matti Wiegmann, Jürgen Neyer, Benno Stein


Abstract
Political scientists are interested in changes in political discourse over time. However, the topics of interest, such as the changes in support for or understanding of certain narratives, are often ill-defined and require deliberation, which prevents most lexical or metadata-based methods of temporal aggregation. To enable a diachronic analysis, we propose to model such settings as a series of binary document classification tasks – which current reasoning LLMs can adequately solve – and aggregate the decisions into a temporal signal. Specifically, we propose to use LLMs to classify if a parliament speech is in support of either of two narratives, and we use the monthly count of positives per narrative to track the support over time. We show that the classification is sufficiently accurate and use it to create detailed time series data showing support for the selected narratives in speeches given in the European Parliament from 2006 to 2023. The method is developed in close collaboration with political scientists and is considered an ideal starting point for diachronic analyses of political decision-making processes by domain experts.
Anthology ID:
2026.politicalnlp-1.10
Volume:
Proceedings of the 3rd Workshop on Natural Language Processing for Political Sciences (PoliticalNLP 2026)
Month:
May
Year:
2026
Address:
Palma, Mallorca (Spain)
Editors:
Haithem Afli, Houda Bouamor, Wajdi Zaghouani, Sahar Ghannay, Shehenaz Hossain
Venues:
PoliticalNLP | WS
SIG:
Publisher:
ELRA Language Resources Association (ELRA)
Note:
Pages:
87–93
Language:
External URL:
https://lrec.elra.info/lrec2026-ws-politicalnlp-10
DOI:
10.63317/4vdcyy75sgyv
Bibkey:
Cite (ACL):
Matti Wiegmann, Jürgen Neyer, and Benno Stein. 2026. Exploring Two Decades of Parliamentary Speeches on the Use of Narratives. In Proceedings of the 3rd Workshop on Natural Language Processing for Political Sciences (PoliticalNLP 2026), pages 87–93, Palma, Mallorca (Spain). ELRA Language Resources Association (ELRA).
Cite (Informal):
Exploring Two Decades of Parliamentary Speeches on the Use of Narratives (Wiegmann et al., PoliticalNLP 2026)
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