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A Recommender System With IBA Similarity Measure

In: Advances in Operational Research in the Balkans

Author

Listed:
  • Nevena Vranić

    (University of Belgrade)

  • Pavle Milošević

    (University of Belgrade)

  • Ana Poledica

    (University of Belgrade)

  • Bratislav Petrović

    (University of Belgrade)

Abstract

Recommender systemsRecommender System (RS) help users to reduce the amount of time they spend to find the items they are interested in. One of the most successful approaches is collaborative filteringCollaborative Filtering (CF). The main feature of a recommender system is its ability to predict user’s interests by analyzing the behavior of this particular user and/or the behavior of other similar users to generate personalized recommendations. Identification of neighbor users who have had similar taste to the target user in the past is a crucial process for successful application of collaborative filteringCollaborative Filtering (CF). In this paper, we proposed a collaborative filtering method that uses interpolative Boolean algebraInterpolative Boolean Algebra (IBA) for calculation of similarity between users. In order to analyze the effectiveness of the proposed approach we used three common datasets: MovieLens 100K, MovieLens 1M, and CiaoDVD. We compared a collaborative filteringCollaborative Filtering (CF) based on IBA similarity measureIBA similarity measure with two standard similarity measures: Pearson correlation and cosine-based coefficient. Even though statistical measures are traditionally used in recommender systems, proposed logic-based approach showed promising results on the tested datasets. A recommender system with IBA similarity measureIBA similarity measure outperformed the others in most cases.

Suggested Citation

  • Nevena Vranić & Pavle Milošević & Ana Poledica & Bratislav Petrović, 2020. "A Recommender System With IBA Similarity Measure," Springer Proceedings in Business and Economics, in: Nenad Mladenović & Angelo Sifaleras & Marija Kuzmanović (ed.), Advances in Operational Research in the Balkans, pages 275-290, Springer.
    • Handle: RePEc:spr:prbchp:978-3-030-21990-1_17
    DOI: 10.1007/978-3-030-21990-1_17
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