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Testing the Validity of Automatic Speech Recognition for Political Text Analysis

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  • Proksch, Sven-Oliver
  • Wratil, Christopher
  • Wäckerle, Jens

Abstract

The analysis of political texts from parliamentary speeches, party manifestos, social media, or press releases forms the basis of major and growing fields in political science, not least since advances in “text-as-data†methods have rendered the analysis of large text corpora straightforward. However, a lot of sources of political speech are not regularly transcribed, and their on-demand transcription by humans is prohibitively expensive for research purposes. This class includes political speech in certain legislatures, during political party conferences as well as television interviews and talk shows. We showcase how scholars can use automatic speech recognition systems to analyze such speech with quantitative text analysis models of the “bag-of-words†variety. To probe results for robustness to transcription error, we present an original “word error rate simulation†(WERSIM) procedure implemented in $R$. We demonstrate the potential of automatic speech recognition to address open questions in political science with two substantive applications and discuss its limitations and practical challenges.

Suggested Citation

  • Proksch, Sven-Oliver & Wratil, Christopher & Wäckerle, Jens, 2019. "Testing the Validity of Automatic Speech Recognition for Political Text Analysis," Political Analysis, Cambridge University Press, vol. 27(3), pages 339-359, July.
    • Handle: RePEc:cup:polals:v:27:y:2019:i:03:p:339-359_00
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    1. repec:nad:wpaper:20220080 is not listed on IDEAS
    2. Mónica D. Oliveira & Inês Mataloto & Panos Kanavos, 2019. "Multi-criteria decision analysis for health technology assessment: addressing methodological challenges to improve the state of the art," The European Journal of Health Economics, Springer;Deutsche Gesellschaft für Gesundheitsökonomie (DGGÖ), vol. 20(6), pages 891-918, August.
    3. Konstantin Gavras & Jan Karem Höhne & Annelies G. Blom & Harald Schoen, 2022. "Innovating the collection of open‐ended answers: The linguistic and content characteristics of written and oral answers to political attitude questions," Journal of the Royal Statistical Society Series A, Royal Statistical Society, vol. 185(3), pages 872-890, July.
    4. Baranski, Andrzej & Haas, Nicholas, 2023. "The timing of communication and retaliation in bargaining: An experimental study," Journal of Economic Psychology, Elsevier, vol. 96(C).
    5. Christopher Wratil & Sara B Hobolt, 2019. "Public deliberations in the Council of the European Union: Introducing and validating DICEU," European Union Politics, , vol. 20(3), pages 511-531, September.

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