Cluster searching strategies for collaborative recommendation systems
Altingovde, I. S.
Subakan, Ö. N.
Information Processing & Management
688 - 697
Item Usage Stats
MetadataShow full item record
In-memory nearest neighbor computation is a typical collaborative filtering approach for high recommendation accuracy. However, this approach is not scalable given the huge number of customers and items in typical commercial applications. Cluster-based collaborative filtering techniques can be a remedy for the efficiency problem, but they usually provide relatively lower accuracy figures, since they may become over-generalized and produce less-personalized recommendations. Our research explores an individualistic strategy which initially clusters the users and then exploits the members within clusters, but not just the cluster representatives, during the recommendation generation stage. We provide an efficient implementation of this strategy by adapting a specifically tailored cluster- skipping inverted index structure. Experimental results reveal that the individualistic strategy with the cluster-skipping index is a good compromise that yields high accuracy and reasonable scalability figures. © 2012 Elsevier Ltd. All rights reserved.
Collaborative filtering techniques
Collaborative recommendation system
Inverted index structures
Computer supported cooperative work
Permalink (Please cite this version)http://hdl.handle.net/11693/21149
Showing items related by title, author, creator and subject.
Altin, R.; Bektik, M.; Ekşioglu, N.; Koray, C.; Öner O.C.; Sadetaş, M.; Şener H.; Şimşek, D.; Ma, C.-C.; Price, C.; Routh, C. (2009)The ability to collaborate with fellow workers from different cultures on international projects is a key asset in today's job market . International projects add new dimensions to student teamwork. These types of projects ...
Rehearsal of professional practice: impacts of web-based collaborative learning on the future encounter of different disciplines Karakaya, A. F.; Şenyapılı, B. (Springer, 2008)This study argues that the shift towards a more multidisciplinary professional life in contemporary design practice requires design curricula to equip students with collaborative skills. The study offers that by the aid ...
Şenyapili, B.; Anumba, C.J. (CRC Press/Balkema, 2015)Almost all design related practices (architecture, architectural engineering, interior architecture/design, landscape architecture, urban design, industrial design, fashion and visual communication design) heavily depend ...