LIIR at SemEval-2021 task 6: Detection of Persuasion Techniques In Texts and Images using CLIP features

Ghadery, Erfan; Sileo, Damien; Moens, Marie‐Francine

doi:10.18653/v1/2021.semeval-1.139

Cited by 2 publications

(1 citation statement)

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“…LIIR (Ghadery et al, 2021)[ST3: 8th] used data augmentation through back-translation and CLIP to obtain image and text representations, which were then fed to a chained classifier that uses the correlations between the output techniques.…”

Section: Participating Systemsmentioning

confidence: 99%

SemEval-2021 Task 6: Detection of Persuasion Techniques in Texts and Images

Dimitrov¹,

Ali²,

Shaar³

et al. 2021

Preprint

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We describe SemEval-2021 task 6 on Detection of Persuasion Techniques in Texts and Images: the data, the annotation guidelines, the evaluation setup, the results, and the participating systems. The task focused on memes and had three subtasks: (i) detecting the techniques in the text, (ii) detecting the text spans where the techniques are used, and (iii) detecting techniques in the entire meme, i.e., both in the text and in the image. It was a popular task, attracting 71 registrations, and 22 teams that eventually made an official submission on the test set. The evaluation results for the third subtask confirmed the importance of both modalities, the text and the image. Moreover, some teams reported benefits when not just combining the two modalities, e.g., by using early or late fusion, but rather modeling the interaction between them in a joint model.

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Section: Participating Systemsmentioning

confidence: 99%