Title
ScoreGAN: A Fraud Review Detector Based on Regulated GAN With Data Augmentation
Abstract
The promising performance of Deep Neural Networks (DNNs) in text classification has attracted researchers to use them for fraud review detection. However, the lack of trusted labeled data has limited the performance of the current solutions in detecting fraud reviews. The Generative Adversarial Network (GAN) as a semi-supervised method has been demonstrated to be effective for data augmentation purposes. The state-of-the-art solutions utilize GANs to overcome the data scarcity problem. However, they fail to incorporate the behavioral clues in fraud generation. Additionally, state-of-the-art approaches overlook the possible bot-generated reviews in the dataset. Finally, they also suffer from a common limitation in the generalization and stability of the GAN, slowing down the training procedure. In this work, we propose ScoreGAN for fraud review detection that makes use of both review text and review rating scores in the generation and detection process. Scores are incorporated through Information Gain Maximization (IGM) into the loss function for three reasons. One is to generate score-correlated reviews based on the scores given to the generator. Second, the generated reviews are employed to train the discriminator, allowing the discriminator to correctly label the possible bot-generated reviews through joint representations learned from the concatenation of GLobal Vector for Word representation (GLoVe) extracted from the text and the score. Finally, it can be used to improve the stability and generalization of the GAN. Results show that the proposed framework outperformed the existing state-of-the-art FakeGAN framework, in terms of AP by 7%, and 5% on the Yelp and TripAdvisor datasets, respectively.
Year
DOI
Venue
2022
10.1109/TIFS.2021.3139771
IEEE Transactions on Information Forensics and Security
Keywords
DocType
Volume
Fraud reviews detection,deep learning,generative adversarial networks,joint representation,information gain maximization
Journal
17
ISSN
Citations 
PageRank 
1556-6013
0
0.34
References 
Authors
17
4
Name
Order
Citations
PageRank
Saeedreza Shehnepoor1212.98
R. Togneri29010.70
Wei Liu3144.57
M. Bennamoun43197167.23