Awake (Skillet album) Awake (Skillet album) Awake is the seventh album by American Christian rock band Skillet. It is the follow-up to their Grammy-nominated album "Comatose". The album was released August 25, 2009 by Lava Records and Ardent Records and debuted at No. 2 on the "Billboard" 200. The album was certified gold by the Recording Industry Association of America (RIAA) on July 27, 2010, and has since gone double platinum, selling over 2,000,000 copies to date. It was nominated for Top Christian Album at the "Billboard" Music Awards 2011 and won. This is the last album to feature guitarist Ben Kasica and
Item-item collaborative filtering Item-item collaborative filtering Item-item collaborative filtering, or item-based, or item-to-item, is a form of collaborative filtering for recommender systems based on the similarity between items calculated using people's ratings of those items. Item-item collaborative filtering was invented and used by Amazon.com in 1998. It was first published in an academic conference in 2001. The authors of that paper, Badrul Sarwar, George Karypis, Joseph Konstan, and John Riedl, won the 2016 "Test of Time Award" for their paper "Item-based collaborative filtering recommendation algorithms". The International World Wide Web Conference committee stated that "this outstanding paper has had a considerable real-world impact".