Title: Improving recommendation quality and performance of genetic-based recommender system

Authors: Bushra Alhijawi; Yousef Kilani; Ayoub Alsarhan

Addresses: Department of Computer Information Systems, The Hashemite University, Zarqa, Jordan ' Department of Computer Information Systems, The Hashemite University, Zarqa, Jordan ' Department of Computer Information Systems, The Hashemite University, Zarqa, Jordan

Abstract: The recommender system came to help the user in finding the required item in a short time by filtering the available choices. This paper addresses the problem of recommending items to users by presenting new three genetic-based recommender system (GARS+, GARS++ and HGARS). HGARS is a combination of GARS+ with GARS++. It is an enhanced version of the genetic-based recommender system that works without the being a hybrid model. In the proposed algorithms, the genetic algorithm is used to find the optimal similarity function. This function depends on a liner combination of values and weights. We experimentally prove that HGARS improves the accuracy by 16.1%, the recommendation quality by 17.2% and the performance by 40%.

Keywords: collaborative filtering; recommender system; genetic algorithms; similarity.

DOI: 10.1504/IJAIP.2020.104108

International Journal of Advanced Intelligence Paradigms, 2020 Vol.15 No.1, pp.77 - 88

Received: 11 Jun 2016
Accepted: 22 Oct 2016
Published online: 14 Dec 2019 *

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