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Title: Supporting top-K item exchange recommendations in large online communities
Authors: Su, Z.
Tung, A.K.H. 
Zhang, Z.
Keywords: item exchange
online community
recommender system
Issue Date: 2012
Source: Su, Z.,Tung, A.K.H.,Zhang, Z. (2012). Supporting top-K item exchange recommendations in large online communities. ACM International Conference Proceeding Series : 97-108. ScholarBank@NUS Repository.
Abstract: Item exchange is becoming a popular behavior and widely supported in more and more online community systems, e. g. online games and social network web sites. Traditional manual search for possible exchange pairs is neither efficient nor effective. Automatic exchange pairing is increasingly demanding in such community systems, and potentially leading to new business opportunities. To meet the needs on item exchange in the market, each user in the system is entitled to list some items he/she no longer needs, as well as some required items he/she is seeking for. Given the values of all items, an exchange between two users is eligible if 1) they both have some unneeded items the other one wants, and 2) the exchange items from both sides are approximately of the same total value. To efficiently support exchange recommendation services, especially with frequent updates on the listed items, new data structures are proposed in this paper to maintain promising exchange pairs for each user. Extensive experiments on both synthetic and real data sets are conducted to evaluate our proposed solutions. © 2012 ACM.
Source Title: ACM International Conference Proceeding Series
ISBN: 9781450307901
DOI: 10.1145/2247596.2247609
Appears in Collections:Staff Publications

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