Clustering Document Parts: Detecting and Characterizing Influence Campaigns from Documents

Zhengxiang Wang, Owen Rambow


Abstract
We propose a novel clustering pipeline to detect and characterize influence campaigns from documents. This approach clusters parts of document, detects clusters that likely reflect an influence campaign, and then identifies documents linked to an influence campaign via their association with the high-influence clusters. Our approach outperforms both the direct document-level classification and the direct document-level clustering approach in predicting if a document is part of an influence campaign. We propose various novel techniques to enhance our pipeline, including using an existing event factuality prediction system to obtain document parts, and aggregating multiple clustering experiments to improve the performance of both cluster and document classification. Classifying documents after clustering not only accurately extracts the parts of the documents that are relevant to influence campaigns, but also captures influence campaigns as a coordinated and holistic phenomenon. Our approach makes possible more fine-grained and interpretable characterizations of influence campaigns from documents.
Anthology ID:
2024.nlpcss-1.10
Volume:
Proceedings of the Sixth Workshop on Natural Language Processing and Computational Social Science (NLP+CSS 2024)
Month:
June
Year:
2024
Address:
Mexico City, Mexico
Editors:
Dallas Card, Anjalie Field, Dirk Hovy, Katherine Keith
Venues:
NLP+CSS | WS
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
132–143
Language:
URL:
https://aclanthology.org/2024.nlpcss-1.10
DOI:
Bibkey:
Cite (ACL):
Zhengxiang Wang and Owen Rambow. 2024. Clustering Document Parts: Detecting and Characterizing Influence Campaigns from Documents. In Proceedings of the Sixth Workshop on Natural Language Processing and Computational Social Science (NLP+CSS 2024), pages 132–143, Mexico City, Mexico. Association for Computational Linguistics.
Cite (Informal):
Clustering Document Parts: Detecting and Characterizing Influence Campaigns from Documents (Wang & Rambow, NLP+CSS-WS 2024)
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PDF:
https://aclanthology.org/2024.nlpcss-1.10.pdf