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Automatic Grammatical Evolution-Based Optimization of Matrix Factorization Algorithm

Author

Listed:
  • Matevž Kunaver

    (Faculty of Electrical Engineering, University of Ljubljana, 1000 Ljubljana, Slovenia)

  • Árpád Bűrmen

    (Faculty of Electrical Engineering, University of Ljubljana, 1000 Ljubljana, Slovenia)

  • Iztok Fajfar

    (Faculty of Electrical Engineering, University of Ljubljana, 1000 Ljubljana, Slovenia)

Abstract

Nowadays, recommender systems are vital in lessening the information overload by filtering out unnecessary information, thus increasing comfort and quality of life. Matrix factorization (MF) is a well-known recommender system algorithm that offers good results but requires a certain level of system knowledge and some effort on part of the user before use. In this article, we proposed an improvement using grammatical evolution (GE) to automatically initialize and optimize the algorithm and some of its settings. This enables the algorithm to produce optimal results without requiring any prior or in-depth knowledge, thus making it possible for an average user to use the system without going through a lengthy initialization phase. We tested the approach on several well-known datasets. We found our results to be comparable to those of others while requiring a lot less set-up. Finally, we also found out that our approach can detect the occurrence of over-saturation in large datasets.

Suggested Citation

  • Matevž Kunaver & Árpád Bűrmen & Iztok Fajfar, 2022. "Automatic Grammatical Evolution-Based Optimization of Matrix Factorization Algorithm," Mathematics, MDPI, vol. 10(7), pages 1-22, April.
    • Handle: RePEc:gam:jmathe:v:10:y:2022:i:7:p:1139-:d:785299
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    References listed on IDEAS

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    1. David J. Hand & Heikki Mannila & Padhraic Smyth, 2001. "Principles of Data Mining," MIT Press Books, The MIT Press, edition 1, volume 1, number 026208290x, April.
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    Cited by:

    1. Árpád Bűrmen & Tadej Tuma, 2022. "Preface to the Special Issue on “Optimization Theory and Applications”," Mathematics, MDPI, vol. 10(24), pages 1-3, December.

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