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designer bags cyber mondayHere I will be using natural language processing to categorize and analyze Amazon reviews to see if and how low-quality reviews could potentially act as a tracer for fake reviews.
The Model
scroll, wheel, logitech, mouse, accessory, thumb... = Computer Mouse
I modeled each review in the dataset, and for each product and reviewer, I found what percentage of their reviews were in the low-quality topic. The percentage is plotted here vs. the number of reviews written for each product in the dataset:
The peak is with four products that had 2/3 of their reviews being low-quality, each having a total of six reviews in the dataset: Serial ATA Cable, Kingston USB Flash Drive, AMD Processor, and a Netbook Sleeve.
For higher numbers of reviews, lower rates of low-quality reviews are seen. At first sight, this suggests that there may be a relationship between more reviews and better quality reviews that's not necessarily due to popularity of the product. Popularity of a product would presumably bring in more low-quality reviewers just as it does high-quality reviewers. Perhaps products that more people review may be products that are easier to have things to say about. However, this does not appear to be the case. The top 5 review are the SanDisk MicroSDXC card, Chromecast Streaming Media Player, AmazonBasics HDMI cable, Mediabridge HDMI cable, and a Transcend SDHC card.
Here is the grade distribution for the products I found had 50% low-quality reviews or more (Blue; 28 products total), and the products with the most reviews in the UCSD dataset (Orange):
I spot checked many of these reviews, and did not see any that weren't a verified purchase. A likely explanation is that this person wants to write reviews, but is not willing to put in the time necessary to properly review all of these purchases. While this is consistent with a vast majority of his reviews, not all the reviews are 5-stars and the lower-rated reviews are more informative. It is likely that he just copy/pastes the phrase for products he didn't have a problem with, and then spends a little more time on the few products that didn't turn out to be good.
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designer bags cyber monday
designer bags cyber monday