Sentiment analysis in political discourse: Understanding public opinion from social media

Abstract

The exponential growth of social media platforms has fundamentally transformed the landscape of political discourse and public opinion formation, generating unprecedented volumes of data that reflect citizen sentiments toward political issues, candidates, and policies. This comprehensive research investigates the application and effectiveness of sentiment analysis techniques in extracting and analyzing public opinion from social media platforms within political discourse. Through a mixed-methods approach combining advanced natural language processing techniques with traditional statistical analysis, this study examines over 10 million social media posts across multiple platforms during the 2023-2024 election cycle. The research employs sophisticated machine learning algorithms and deep learning models, including BERT-based sentiment classifiers and attention mechanisms, to capture nuanced public opinions and emotional responses to political events, policy announcements, and campaign messages. Our findings reveal significant correlations between social media sentiment patterns and electoral outcomes, with a predictive accuracy of 78.3% for major political events. The study also uncovers important demographic variations in sentiment expression across different social media platforms and identifies key challenges in sentiment analysis, including the impact of echo chambers and algorithmic bias. This research contributes to the growing field of computational political science by demonstrating the potential of automated sentiment analysis in understanding public opinion while highlighting the importance of considering contextual factors and platform-specific characteristics in sentiment analysis implementations. Furthermore, our research introduces novel methodological approaches for handling multilingual political discourse and cross-platform sentiment analysis, addressing critical gaps in existing literature and providing practical frameworks for future research in this domain.