تقرير
Unveiling the Potential of BERTopic for Multilingual Fake News Analysis -- Use Case: Covid-19
| العنوان: | Unveiling the Potential of BERTopic for Multilingual Fake News Analysis -- Use Case: Covid-19 |
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| المؤلفون: | Schäfer, Karla, Choi, Jeong-Eun, Vogel, Inna, Steinebach, Martin |
| سنة النشر: | 2024 |
| المجموعة: | Computer Science |
| مصطلحات موضوعية: | Computer Science - Machine Learning |
| الوصف: | Topic modeling is frequently being used for analysing large text corpora such as news articles or social media data. BERTopic, consisting of sentence embedding, dimension reduction, clustering, and topic extraction, is the newest and currently the SOTA topic modeling method. However, current topic modeling methods have room for improvement because, as unsupervised methods, they require careful tuning and selection of hyperparameters, e.g., for dimension reduction and clustering. This paper aims to analyse the technical application of BERTopic in practice. For this purpose, it compares and selects different methods and hyperparameters for each stage of BERTopic through density based clustering validation and six different topic coherence measures. Moreover, it also aims to analyse the results of topic modeling on real world data as a use case. For this purpose, the German fake news dataset (GermanFakeNCovid) on Covid-19 was created by us and in order to experiment with topic modeling in a multilingual (English and German) setting combined with the FakeCovid dataset. With the final results, we were able to determine thematic similarities between the United States and Germany. Whereas, distinguishing the topics of fake news from India proved to be more challenging. Comment: Accepted at the Workshop on Representation Learning and Clustering (RLC) at the 17th ACM International WSDM Conference in 2024 |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2407.08417 |
| رقم الأكسشن: | edsarx.2407.08417 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |