کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5103363 1480104 2017 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Personalized recommendation based on preferential bidirectional mass diffusion
ترجمه فارسی عنوان
توصیه شخصی بر اساس توزیع جرم دو طرفه ترجیحی
کلمات کلیدی
توصیه شخصی انتشار دو طرفه ترجیحی، شبکه دو طرفه،
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات فیزیک ریاضی
چکیده انگلیسی
Recommendation system provides a promising way to alleviate the dilemma of information overload. In physical dynamics, mass diffusion has been used to design effective recommendation algorithms on bipartite network. However, most of the previous studies focus overwhelmingly on unidirectional mass diffusion from collected objects to uncollected objects, while overlooking the opposite direction, leading to the risk of similarity estimation deviation and performance degradation. In addition, they are biased towards recommending popular objects which will not necessarily promote the accuracy but make the recommendation lack diversity and novelty that indeed contribute to the vitality of the system. To overcome the aforementioned disadvantages, we propose a preferential bidirectional mass diffusion (PBMD) algorithm by penalizing the weight of popular objects in bidirectional diffusion. Experiments are evaluated on three benchmark datasets (Movielens, Netflix and Amazon) by 10-fold cross validation, and results indicate that PBMD remarkably outperforms the mainstream methods in accuracy, diversity and novelty.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica A: Statistical Mechanics and its Applications - Volume 469, 1 March 2017, Pages 397-404
نویسندگان
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