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A novel hybrid approach improving effectiveness of recommender systems

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Abstract

Recommender systems support users by generating potentially interesting suggestions about relevant products and information. The increasing attention towards such tools is witnessed by both the great number of powerful and sophisticated recommender algorithms developed in recent years and their adoption in many popular Web platforms. However, performances of recommender systems can be affected by many critical issues as for instance, over-specialization, attribute selection and scalability. To mitigate some of such negative effects, a hybrid recommender system, called Relevance Based Recommender, is proposed in this paper. It exploits individual measures of perceived relevance computed by each user for each instance of interest and, to obtain a better precision, also by considering the analogous measures computed by the other users for the same instances. Some experiments show the advantages introduced by this recommender when generating potentially attractive suggestions.

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Authors and Affiliations

  1. DICEAM Department, University “Mediterranea” of Reggio Calabria, Loc. Feo di Vito, 89122, Reggio, Calabria, Italy

    G. M. L. Sarnè

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  1. G. M. L. Sarnè
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Correspondence to G. M. L. Sarnè.

Appendix

Appendix

The Section Appendix presents the two XML-Schema of the Dictionary and of the User Profile described in Section 3.

The Dictionary XML-Schema

figure a

The User Profile XML-Schema

figure b

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Sarnè, G.M.L. A novel hybrid approach improving effectiveness of recommender systems. J Intell Inf Syst 44, 397–414 (2015). https://doi.org/10.1007/s10844-014-0338-z

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  • DOI: https://doi.org/10.1007/s10844-014-0338-z

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