Sentiment spreads, but topics do not, in COVID-19 discussions within the Belgian Reddit community
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arXiv
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| Auteurs principaux: | , , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866913859685580800 |
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| author | Van Wesemael, Tim Rocha, Luis E. C. Alleman, Tijs W. Baetens, Jan M. |
| author_facet | Van Wesemael, Tim Rocha, Luis E. C. Alleman, Tijs W. Baetens, Jan M. |
| contents | This study investigates how topics and sentiments on COVID-19 mitigation measures -- specifically lockdowns, mask mandates, and vaccinations -- spread through the Belgian Reddit community. We explore 655,642 posts created between 1 January 2020 and 30 June 2022. In line with previous studies for other countries and platforms, we find that the volume of posts on these topics can be tied to important external events, but not within-Reddit interactions. Sentiment, however, is influenced by the sentiment of previous posts, resulting in homophily and polarisation. We define a homophily measure and find values of 0.228, 0.198, and 0.133 for lockdowns, masks and vaccination, respectively. Additionally, we introduce a novel bounded confidence model that estimates internal sentiment of users from their expressed sentiment. The Wasserstein metric between the predicted and the observed sentiments takes values between 0.493 (vaccination) and 0.607 (lockdown). These results yield insight into the way the Belgian Reddit community experienced the pandemic, and which aspects influenced the topics discussed and their associated sentiment. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_20185 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Sentiment spreads, but topics do not, in COVID-19 discussions within the Belgian Reddit community Van Wesemael, Tim Rocha, Luis E. C. Alleman, Tijs W. Baetens, Jan M. Social and Information Networks Physics and Society 91C99 This study investigates how topics and sentiments on COVID-19 mitigation measures -- specifically lockdowns, mask mandates, and vaccinations -- spread through the Belgian Reddit community. We explore 655,642 posts created between 1 January 2020 and 30 June 2022. In line with previous studies for other countries and platforms, we find that the volume of posts on these topics can be tied to important external events, but not within-Reddit interactions. Sentiment, however, is influenced by the sentiment of previous posts, resulting in homophily and polarisation. We define a homophily measure and find values of 0.228, 0.198, and 0.133 for lockdowns, masks and vaccination, respectively. Additionally, we introduce a novel bounded confidence model that estimates internal sentiment of users from their expressed sentiment. The Wasserstein metric between the predicted and the observed sentiments takes values between 0.493 (vaccination) and 0.607 (lockdown). These results yield insight into the way the Belgian Reddit community experienced the pandemic, and which aspects influenced the topics discussed and their associated sentiment. |
| title | Sentiment spreads, but topics do not, in COVID-19 discussions within the Belgian Reddit community |
| topic | Social and Information Networks Physics and Society 91C99 |
| url | https://arxiv.org/abs/2505.20185 |