On Document Representations for Detection of Biased News Articles

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2020

Autores

André Ferreira Cruz (Autor) Outra; Gil Rocha (Autor) Outra; Henrique Lopes Cardoso (Autor) FEUP

Ata de Conferência Internacional

Título: Proceedings of the 35th Annual ACM Symposium on Applied Computing

Páginas: 892-899

Indexação

ISI Web of Knowledge - 1 Citação

Scopus - 4 Citações

Outras Informações

ID Authenticus: P-00R-ZAX

DOI: 10.1145/3341105.3374025

Abstract (EN): Detecting bias in text is an increasingly relevant topic, given the information overload problem. Automating this task is crucial for our needs of quality news consumption. With this in mind, we explore modern deep learning approaches, including contextualized word embeddings and attention mechanisms, to compare the effects of different document representation choices. We design token-wise, sentence-wise and hierarchical document representations. Focusing on hyperpartisan news detection, we show that hierarchical attention mechanisms are able to better capture information at different levels of granularity (including intra and inter-sentence), which seems to be relevant for this task. With an accuracy of 82.5%, our best performing system is based on an ensemble of hierarchical attention networks with ELMo embeddings, achieving state-of-theart performance on the SemEval-2019 Task4 dataset.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 8