What makes a review helpful? Predicting the helpfulness of Italian tripadvisor reviews

In this paper we introduce a classification system devoted to predict the helpfulness of Italian online reviews. It is based on a wide set of features reflecting the different factors involved and tested on different categories of TripAdvisor reviews. For this purpose, we collected the first Italian corpus of online reviews enriched with metadata related to their helpfulness and we carried out an in-depth analysis of the most predictive features.