Cutlery the term "tableware" has come into use to avoid the implication that they are made of silver. The major items of cutlery in Western culture are the knife, fork and spoon. In recent times, hybrid versions of cutlery have been made combining the functionality of different eating implements, including the spork (spoon / fork), spife (spoon / knife), and knork (knife / fork) or the sporf which combines all three. The word cutler derives from the Middle English word 'cuteler' and this in turn derives from Old French 'coutelier' which comes from 'coutel'; meaning knife (modern French: couteau). The word's
Item-item collaborative filtering is analogous to "people who rate item X highly, like you, also tend to rate item Y highly, and you haven't rated item Y yet, so you should try it". Item-item collaborative filtering had less error than user-user collaborative filtering. In addition, its less-dynamic model was computed less often and stored in a smaller matrix, so item-item system performance was better than user-user systems. Slope One is a family of item-item collaborative filtering algorithms designed to reduce model overfitting problems. 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