Some Novel Applications of Recommender System and Road Ahead

This chapter gives a brief introduction to the recommender systemRecommender system and provides details of six different applications of the recommender systemRecommender system (health careHealthcare, securitySecurity, tourismTourism, e-commerceE-commerce, e-learningE-learning, and social networkSocial networks). It mainly discusses reasons to use recommender systemsRecommender system, real-life examples, as well as techniques such as collaborative filteringCollaborative filtering, content-based filteringContent-based filtering, and hybrid filteringHybrid filtering behind it. Based on the existing problems within each recommender systemRecommender system, some possible solutions are given to improve the current recommender systemsRecommender system, respectively.