Oggy Oggy Oggy at Cornish rugby matches so this seem another possible origin. The Oxford English Dictionary (2004) entry for "Oggy" states: "Oggy, "noun". "West Country regional" (orig. "Cornwall") and "Navy" slang. A Cornish pasty. Probably an alteration of Cornish "hoggan" pastry, pie (18th century), perhaps cognate with Welsh "chwiogen" muffin, simnel cake (1562), of unknown origin." Members of the Royal Navy claim to have used the chant, or a version of it, since the Second World War. The 'Oggie, Oggie, Oggie' chant was used by supporters of the Royal Navy's Devonport Field Gun Team. (The field gun competition was disbanded in 1999
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".