Customer review informativeness dataset

This dataset contains 3000 sentences from Amazon product reviews related to Digital cameras and Accessories, written in the period May 1996 - July 2014. The original dataset used to extract these reviews is the "Amazon review data": http://jmcauley.ucsd.edu/data/amazon/ All sentences are labeled by human annotators, based on their level of informativeness. The inter-annotator agreement is calculated by Krippendorff's alpha, where α=0.75