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Fake reviews classification using deep learning ensemble of shallow convolutions

Author

Listed:
  • Muhammad Saad Javed

    (National University of Computer and Emerging Sciences)

  • Hammad Majeed

    (National University of Computer and Emerging Sciences)

  • Hasan Mujtaba

    (National University of Computer and Emerging Sciences)

  • Mirza Omer Beg

    (National University of Computer and Emerging Sciences)

Abstract

Online reviews have a decisive impact on consumers’ purchasing decisions. This opens the doors for spammers and scammers to post fake reviews for promoting non-existent products or undermine competitor products to affect social behavior. Thus, the identification of reviews as fake and real has become ever more important. Traditional approaches for text classification use a bag-of-words model to represent text which causes sparsity and word representations learnt from neural networks with limited ability to handle unknown words. In this paper, we propose a technique based on three different models trained on the idea of a multi-view learning technique and create an ensemble of all models by employing an aggregation technique for generating final predictions. The core idea of our methodology is to extract rich information from the text of reviews by combining bag-of-n-grams and parallel convolution neural networks(CNNs). By using an n-gram embedding layer with small kernel sizes we can use local context with the same computation power as required to train deep and complex CNNs. Our CNN-based architecture consumes n-gram embeddings as input and uses the parallel convolutional blocks to extract richer feature representations from text. Our approach for the detection of fake reviews also combines textual linguistic features and non-textual features related to reviewer behavior. We evaluate our approach on publically available Yelp Filtered Dataset and achieve F1 scores of up to 92% for classifying fake reviews.

Suggested Citation

  • Muhammad Saad Javed & Hammad Majeed & Hasan Mujtaba & Mirza Omer Beg, 2021. "Fake reviews classification using deep learning ensemble of shallow convolutions," Journal of Computational Social Science, Springer, vol. 4(2), pages 883-902, November.
  • Handle: RePEc:spr:jcsosc:v:4:y:2021:i:2:d:10.1007_s42001-021-00114-y
    DOI: 10.1007/s42001-021-00114-y
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    References listed on IDEAS

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    1. Bilal Naeem & Aymen Khan & Mirza Omer Beg & Hasan Mujtaba, 2020. "A deep learning framework for clickbait detection on social area network using natural language cues," Journal of Computational Social Science, Springer, vol. 3(1), pages 231-243, April.
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    Cited by:

    1. Hajek, Petr & Hikkerova, Lubica & Sahut, Jean-Michel, 2023. "Fake review detection in e-Commerce platforms using aspect-based sentiment analysis," Journal of Business Research, Elsevier, vol. 167(C).
    2. Birim, Şule Öztürk & Kazancoglu, Ipek & Kumar Mangla, Sachin & Kahraman, Aysun & Kumar, Satish & Kazancoglu, Yigit, 2022. "Detecting fake reviews through topic modelling," Journal of Business Research, Elsevier, vol. 149(C), pages 884-900.

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