A Cold Start Context-Aware Recommender System for Tour Planning Using Artificial Neural Network and Case Based Reasoning

Algorithm 1

Pseudocode of the proposed hybrid context-aware tourism recommender system.

(1) Input: CB_initial is a set of visited tours and their ratings

(2) Output: CB, net, recommendation

(3) CB = CB_initial

(4) net = Train_ANN(CB) //net is a trained ANN using CB

(5) while ~termination criteria

(6) = Reuse //System recommends the first highest

computed rated tours

(7) = User_Select() //User selects and rates one of the recommended tours

(8) E = Extract() //System extracts the first prior tours which

have maximum similarities with tour

(9) net, CB = Retain //System adapts CB and ANN

(10) end