12. A computing system for assessing the quality of a review, the system comprising: one or more memory devices storing instructions; and one or more processors, configured to execute the instructions stored in the one or more memory devices in order to execute a method, the method comprising: accessing a review of a product or service provided by a reviewer in an online review platform; accessing reviewer generated content provided by the reviewer, the reviewer generated content comprising information about the product or service posted in a social media platform outside of the review platform; analyzing the reviewer generated content posted in the social media platform to extract product review data; matching the product review data with the review provided by the reviewer in the online review platform; and determining a quality score for the review based on the product review data extracted from the reviewer generated content, the quality score providing a measure of a degree of consistency between a sentiment associated with the product review data extracted from the reviewer generated content and a sentiment associated with the review.
12. A computing system for assessing the quality of a review, the system comprising: one or more memory devices storing instructions; and one or more processors, configured to execute the instructions stored in the one or more memory devices in order to execute a method, the method comprising: accessing a review of a product or service provided by a reviewer in an online review platform; accessing reviewer generated content provided by the reviewer, the reviewer generated content comprising information about the product or service posted in a social media platform outside of the review platform; analyzing the reviewer generated content posted in the social media platform to extract product review data; matching the product review data with the review provided by the reviewer in the online review platform; and determining a quality score for the review based on the product review data extracted from the reviewer generated content, the quality score providing a measure of a degree of consistency between a sentiment associated with the product review data extracted from the reviewer generated content and a sentiment associated with the review. 14. The computing system of claim 12 , wherein the product review data and the review are matched based on identity of the reviewer and the identity of the product or service extracted as part of the product review data and the product or service that is the subject of the review.