2 documents found, page 1 of 1
Overview of the CLEF-2024 CheckThat! Lab Task 3 on persuasion techniques
Piskorski, Jakub; Jorge, Alípio; Silvano, Maria da Purificação; Guimarães, Nuno; Pacheco, Ana Filipa; Yu, NanaWe present an overview of CheckThat! Lab's 2024 Task 3, which focuses on detecting 23 persuasion techniques at the text-span level in online media. The task covers five languages, namely, Arabic, Bulgarian, English, Portuguese, and Slovene, and highly-debated topics in the media, e.g., the Isreali-Palestian conflict, the Russia- Ukraine war, climate change, COVID-19, abortion, etc. A total of 23 teams registere...
Exploiting Machine Learning Techniques to Build an Event Extraction System for ...
Tanev, Hristo; Zavarella, Vanni; Linge, Jens; Kabadjov, Mijail; Piskorski, Jakub; Atkinson, Martin; Steinberger, RalfWe describe a multilingual methodology for adapting an event extraction system to new languages. The methodology is based on highly multilingual domain-specific grammars and exploits weakly supervised machine learning algorithms for lexical acquisition. We adapted an already existing event extraction system for the domain of conflicts and crises to Portuguese and Spanish languages. The results are encoura...