1. Text File: MP3 player reviews crawled from Amazon (http://www.amazon.com/). Meta data includes: Review ID (local), productID (fake), standardName (fake) productName, title, Author, Date, summary (fake), fullText, overall rating, Number of recommendation, price paid (fake), Number of Helpful Judgment, total number (fake), total comment number, webHome, webUrl, htmlPath, textPath (fake). Ratings ranges from 0 to 5 stars. Originally used in [1]. 2. References [1] Hongning Wang, Yue Lu and ChengXiang Zhai. Latent Aspect Rating Analysis without Aspect Keyword Supervision. KDD'2011, p618-626.