3. The system for generating user specific recommendations of alternative unique items of claim 2 , wherein the user specific scoring model is further generated using characteristics of the user received by the system.
2. The system for generating user specific recommendation of alternative unique items of claim 1 , wherein the historical user preference data comprises the plurality of pairs of unique items that were detected as interacted with by the user, wherein one item in a pair of items is preferred by the user and the other item in a pair of items is not preferred by the user.