Zero-Shot Rumor Detection with Propagation Structure via Prompt Learning

Hongzhan Lin, Pengyao Yi, Jing Ma*, Haiyun Jiang*, Ziyang Luo, Shuming Shi, Ruifang Liu

*Corresponding author for this work

Research output: Chapter in book/report/conference proceedingConference proceeding

5 Citations (Scopus)

Abstract

The spread of rumors along with breaking events seriously hinders the truth in the era of social media. Previous studies reveal that due to the lack of annotated resources, rumors presented in minority languages are hard to be detected. Furthermore, the unforeseen breaking events not involved in yesterday's news exacerbate the scarcity of data resources. In this work, we propose a novel zero-shot framework based on prompt learning to detect rumors falling in different domains or presented in different languages. More specifically, we firstly represent rumor circulated on social media as diverse propagation threads, then design a hierarchical prompt encoding mechanism to learn language-agnostic contextual representations for both prompts and rumor data. To further enhance domain adaptation, we model the domain-invariant structural features from the propagation threads, to incorporate structural position representations of influential community response. In addition, a new virtual response augmentation method is used to improve model training. Extensive experiments conducted on three real-world datasets demonstrate that our proposed model achieves much better performance than state-of-the-art methods and exhibits a superior capacity for detecting rumors at early stages.
Original languageEnglish
Title of host publicationProceedings of 37th AAAI Conference on Artificial Intelligence, AAAI 2023
EditorsBrian Williams, Yiling Chen, Jennifer Neville
Place of PublicationWashington, DC
PublisherAAAI press
Pages5213-5221
Number of pages9
Edition1st
ISBN (Electronic)9781577358800
DOIs
Publication statusPublished - 27 Jun 2023
Event37th AAAI Conference on Artificial Intelligence, AAAI 2023 and the 35th Conference on Innovative Applications of Artificial Intelligence, IAAI 2023 - Washington, United States
Duration: 7 Feb 202314 Feb 2023
https://ojs.aaai.org/index.php/AAAI/issue/view/553
https://aaai-23.aaai.org/

Publication series

NameProceedings of the AAAI Conference on Artificial Intelligence
Number4
Volume37
ISSN (Print)2159-5399
ISSN (Electronic)2374-3468

Conference

Conference37th AAAI Conference on Artificial Intelligence, AAAI 2023 and the 35th Conference on Innovative Applications of Artificial Intelligence, IAAI 2023
Country/TerritoryUnited States
CityWashington
Period7/02/2314/02/23
Internet address

Scopus Subject Areas

  • Artificial Intelligence

User-Defined Keywords

  • APP
  • Misinformation & Fake News

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