Cross-lingual Transfer Learning for Check-worthy Claim Identification over Twitter

• URL: http://arxiv.org/abs/2211.05087v1
• Date: Wed, 9 Nov 2022 18:18:53 GMT
• Title: Cross-lingual Transfer Learning for Check-worthy Claim Identification over Twitter
• Authors: Maram Hasanain and Tamer Elsayed
• Abstract summary: Misinformation spread over social media has become an undeniable infodemic. We present a systematic study of six approaches for cross-lingual check-worthiness estimation across pairs of five diverse languages with the help of Multilingual BERT (mBERT) model. Our results show that for some language pairs, zero-shot cross-lingual transfer is possible and can perform as good as monolingual models that are trained on the target language.
• Score: 7.601937548486356
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Misinformation spread over social media has become an undeniable infodemic. However, not all spreading claims are made equal. If propagated, some claims can be destructive, not only on the individual level, but to organizations and even countries. Detecting claims that should be prioritized for fact-checking is considered the first step to fight against spread of fake news. With training data limited to a handful of languages, developing supervised models to tackle the problem over lower-resource languages is currently infeasible. Therefore, our work aims to investigate whether we can use existing datasets to train models for predicting worthiness of verification of claims in tweets in other languages. We present a systematic comparative study of six approaches for cross-lingual check-worthiness estimation across pairs of five diverse languages with the help of Multilingual BERT (mBERT) model. We run our experiments using a state-of-the-art multilingual Twitter dataset. Our results show that for some language pairs, zero-shot cross-lingual transfer is possible and can perform as good as monolingual models that are trained on the target language. We also show that in some languages, this approach outperforms (or at least is comparable to) state-of-the-art models.

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