Use of transfer learning for affordable in-context fake review generation

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Fake reviews are a threat to the trust of online shopping platforms. To produce them, attackers may use assorted techniques based on machine learning. Transfer learning may enable them to leverage already trained models, thus reducing the training requirements. However, the feasibility of these techniques for generating in-context targeted fake reviews has not been explored yet. To address this issue, this paper analyses the suitability of transfer learning using existing models (TS and BART) on different domains (restaurants and technological products). Our results show that: (1) Our work reaches better realism and diversity than previous proposals using artificial intelligence techniques; (2) Our reviews produced with TS can be spot by an automatic detector with a precision of 49% at the highest; (3) Human detection is only 6% better than random guessing, at the highest; and (4) only 1 hour of training and Sk real reviews are needed to produce realistic fake reviews.
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transfer-learning in-context, fake reviews, natural language processing (NLP), transformers
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Ibáñez Lissen, L., González Manzano, L., Fuentes, J.M., Goyanes, M. (2023). Use of transfer learning for affordable in-context fake review generation. IEEE Transactions on Big Data.