Abstract
This paper introduces a collaborative filtering (CF) neural-network algorithm for recommending items. This algorithm connects the study of collaborative filtering with the study of associative memory, which is a neural network architecture that is significantly different from the dominant feedforward design. There are two types of CF systems – user-based and item-based, and we show that our CF system can have both interpretations. We further prove that, given a random subset of all users, our CF system is an unbiased estimator of predictions made from all users, thus theoretically justifying random sampling. We further apply standard neural network techniques, such as magnitude pruning and principle component analysis, to improve the system’s scalability. Results from experiments with the MovieLens dataset are shown.
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Lam, C.P. (2005). Collaborative Filtering Using Associative Neural Memory. In: Mobasher, B., Anand, S.S. (eds) Intelligent Techniques for Web Personalization. ITWP 2003. Lecture Notes in Computer Science(), vol 3169. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11577935_8
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DOI: https://doi.org/10.1007/11577935_8
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-29846-5
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