Helpfulness of Online Product Reviews as Seen by Consumers: Source and Content Features
Perceived 'usefulness' of online consumer reviews: An exploratory investigation across three services categories
NLP based sentiment analysis on Twitter data using ensemble classifiers
Exploring determinants of voting for the "helpfulness" of online user reviews: A text mining approach
Automatic Keyword Extraction on Twitter
Estimating the Helpfulness and Economic Impact of Product Reviews: Mining Text and Reviewer Characteristics