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Content-Aware Trust Propagation Toward Online Review Spam Detection

Published: 20 June 2019 Publication History

Abstract

With the increasing popularity of online review systems, a large volume of user-generated content becomes available to help people make reasonable judgments about the quality of services and products from unknown providers. However, these platforms are frequently abused since fraudulent information can be freely inserted by potentially malicious users without validation. Consequently, online review systems become targets of individual and professional spammers, who insert deceptive reviews by manipulating the rating and/or the content of the reviews.
In this work, we propose a review spamming detection scheme based on the deviation between the aspect-specific opinions extracted from individual reviews and the aggregated opinions on the corresponding aspects. In particular, we model the influence on the trustworthiness of the user due to his opinion deviations from the majority in the form of a deviation-based penalty, and integrate this penalty into a three-layer trust propagation framework to iteratively compute the trust scores for users, reviews, and review targets, respectively. The trust scores are effective indicators of spammers, since they reflect the overall deviation of a user from the aggregated aspect-specific opinions across all targets and all aspects. Experiments on the dataset collected from Yelp.com show that the proposed detection scheme based on aspect-specific content-aware trust propagation is able to measure users’ trustworthiness based on opinions expressed in reviews.

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    cover image Journal of Data and Information Quality
    Journal of Data and Information Quality  Volume 11, Issue 3
    Special Issue on Combating Digital Misinformation and Disinformation and On the Horizon
    September 2019
    160 pages
    ISSN:1936-1955
    EISSN:1936-1963
    DOI:10.1145/3331015
    Issue’s Table of Contents
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    Publication History

    Published: 20 June 2019
    Accepted: 01 January 2019
    Revised: 01 December 2018
    Received: 01 May 2018
    Published in JDIQ Volume 11, Issue 3

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    Author Tags

    1. Spam detection
    2. opinion mining
    3. social networks
    4. trust propagation

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