A Survey on Trust Based Recommendation Systems
نویسندگان
چکیده
Recommendation systems are used to provide high quality recommendations to the users from large amount of choices. Accurate and quality recommendation is necessary in E-commerce sites. One of the most popular technique to implement a recommendation system is Collaborative Filtering (CF) [1]. It tries to find users similar to an active user and recommend him/her the items liked by these similar users. By the advent of social networks, social network based recommendation arised. In this technique a social network is constructed among the users and recommends users based on the ratings of the users who have direct or indirect social relation with the user. One of the most important benefit of social network approach is that it reduces cold start problem [1] [9].
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