Adaptive information filtering for dynamic recommender systems

Details Adaptive information filtering for dynamic recommender systems Adaptive information filtering for dynamic recommender systems

2009-11-25

arxiv.org/abs/0911.4910v1

Computer Science

Information Retrieval

6 pages, 5 figures, 1 table

Scientific paper

The dynamic environment in the real world calls for the adaptive techniques for information filtering, namely to provide real-time responses to the changes of system data. Where many incremental algorithms are designed for this purpose, they are usually challenged by the worse and worse performance resulted from the cumulative errors over time. In this Letter, we propose two incremental diffusion-based algorithms for the personalized recommendations, which integrate some pieces of local and fast updatings to achieve the approximate results. In addition to the fast responses, the errors of the proposed algorithms do not cumulate over time, that is to say, the global recomputing is unnecessary. This remarkable advantage is demonstrated by several metrics on algorithmic accuracy for two movie recommender systems and a social bookmarking system.

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