Asia Pacific Journal of Information Systems (APJIS)

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Current Issue

Date	December 2021
Vol. No.	Vol. 31 No. 4
DOI	https://doi.org/10.14329/apjis.2021.31.4.472
Page	472~490
Title	The Detection of Well-known and Unknown Brands’Products with Manipulated Reviews Using Sentiment Analysis
Author	Olga Chernyaeva, Eunmi Kim, Taeho Hong
Keyword	Online reviews, Manipulated reviews, Manipulation detection, Brand awareness, Sentiment analysis, Readability analysis
Abstract	The detection of products with manipulated reviews has received widespread research attention, given that a truthful, informative, and useful review helps to significantly lower the search effort and cost for potential customers. This study proposes a method to recognize products with manipulated online customer reviews by examining the sequence of each review’s sentiment, readability, and rating scores by product on randomness, considering the example of a Russian online retail site. Additionally, this study aims to examine the association between brand awareness and existing manipulation with products’ reviews. Therefore, we investigated the difference between well-known and unknown brands’ products online reviews with and without manipulated reviews based on the average star rating and the extremely positive sentiment scores. Consequently, machine learning techniques for predicting products are tested with manipulated reviews to determine a more useful one. It was found that about 20% of all product reviews are manipulated. Among the products with manipulated reviews, 44% are products of well-known brands, and 56% from unknown brands, with the highest prediction performance on deep neural network.

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