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Discovery of Hidden Similarity on Collaborative Filtering to Overcome Sparsity Problem

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Discovery Science (DS 2004)

Part of the book series: Lecture Notes in Computer Science ((LNAI,volume 3245))

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Abstract

This paper presents a method for overcoming sparsity problem of collaborative filtering system. The proposed method is based on an intuition on a network of human (such as a friendship network with friends of a friend). This method increases the density of similarity matrix and the coverage of predictions. We use sparse training data to test the sparsity of real-world situation. Consequently, experimental results show that this method increases coverage and f-measure especially for sparse training data.

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© 2004 Springer-Verlag Berlin Heidelberg

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Lee, S., Yang, J., Park, SY. (2004). Discovery of Hidden Similarity on Collaborative Filtering to Overcome Sparsity Problem. In: Suzuki, E., Arikawa, S. (eds) Discovery Science. DS 2004. Lecture Notes in Computer Science(), vol 3245. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-30214-8_36

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  • DOI: https://doi.org/10.1007/978-3-540-30214-8_36

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-23357-2

  • Online ISBN: 978-3-540-30214-8

  • eBook Packages: Springer Book Archive

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