Mining Worse and Better Opinions. Unsupervised and Agnostic Aggregation of Online Reviews
This provides an unsupervised and agnostic method for analyzing online reviews, which could benefit platforms and users by grouping opinions more effectively, though it appears incremental in its approach.
The paper tackles the problem of aggregating online reviews by opinion without supervision or domain assumptions, using a metric of adherence to domain terminology; experiments on Booking and Amazon datasets show the metric's informativeness relative to review scores.
In this paper, we propose a novel approach for aggregating online reviews, according to the opinions they express. Our methodology is unsupervised - due to the fact that it does not rely on pre-labeled reviews - and it is agnostic - since it does not make any assumption about the domain or the language of the review content. We measure the adherence of a review content to the domain terminology extracted from a review set. First, we demonstrate the informativeness of the adherence metric with respect to the score associated with a review. Then, we exploit the metric values to group reviews, according to the opinions they express. Our experimental campaign has been carried out on two large datasets collected from Booking and Amazon, respectively.