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UPB @ ACTI: Detecting Conspiracies using fine tuned Sentence Transformers

arXiv 2309.16275 ↗First posted 28 Sep 2023cs.CL cs.AIcited by 0

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Abstract (arXiv)

Conspiracy theories have become a prominent and concerning aspect of online discourse, posing challenges to information integrity and societal trust. As such, we address conspiracy theory detection as proposed by the ACTI @ EVALITA 2023 shared task. The combination of pre-trained sentence Transformer models and data augmentation techniques enabled us to secure first place in the final leaderboard of both sub-tasks. Our methodology attained F1 scores of 85.71% in the binary classification and 91.23% for the fine-grained conspiracy topic classification, surpassing other competing systems.

Key facts. No citing papers in the map yet (data through 14 Oct 2026). Builds on 12 of its 31 references that are in the map. First posted on arXiv 28 Sep 2023.

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12 of 31 references.

References · 12

  1. 2019Sentence-BERT: Sentence Embeddings using Siamese BERT-Networkscited by 9,170
  2. 2022Efficient Few-Shot Learning Without Promptscited by 137
  3. 2020Control, Generate, Augment: A Scalable Framework for Multi-Attribute Text Generationcited by 18
  4. 2020Do Platform Migrations Compromise Content Moderation? Evidence from r/The_Donald and r/Incelscited by 15
  5. 2022Spillover of Antisocial Behavior from Fringe Platforms: The Unintended Consequences of Community Banningcited by 14
  6. 2017Catching Zika Fever: Application of Crowdsourcing and Machine Learning for Tracking Health Misinformation on Twittercited by 8
  7. 2023A Golden Age: Conspiracy Theories' Relationship with Misinformation Outlets, News Media, and the Wider Internetcited by 7
  8. 2022Understanding Online Migration Decisions Following the Banning of Radical Communitiescited by 6
  9. 2022Disentangling Active and Passive Cosponsorship in the U.S. Congresscited by 4
  10. 2022Detecting Conspiracy Theory Against COVID-19 Vaccinescited by 2
  11. 2022Empowering Sentence Encoders with Prompting and Label Retrieval for Zero-shot Text Classificationcited by 2
  12. 2021Climate Change Conspiracy Theories on Social Mediacited by 1

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