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Sensors 2019, 19(2), 431;

A Smart Recommender Based on Hybrid Learning Methods for Personal Well-Being Services

Department of Computer Science, Dankook University, 152 Jukjeon-ro Campus, Suji-gu, Yongin-si 16890, Gyeonggi-do, Korea
Author to whom correspondence should be addressed.
Received: 29 November 2018 / Revised: 17 January 2019 / Accepted: 18 January 2019 / Published: 21 January 2019
PDF [3273 KB, uploaded 21 January 2019]


The main focus of the paper is to propose a smart recommender system based on the methods of hybrid learning for personal well-being services, called a smart recommender system of hybrid learning (SRHL). The essential health factor is considered to be personal lifestyle, with the help of a critical examination of various disciplines. Integrating the recommender system effectively contributes to the prevention of disease, and it also leads to a reduction in treatment cost, which contributes to an improvement in the quality of life. At the same time, there exist various challenges within the recommender system, mainly cold start and scalability. To effectively address the inefficiencies, we propose combined hybrid methods in regard to machine learning. The primary aim of this learning method is to integrate the most effective and efficient learning algorithms to examine how combined hybrid filtering can help to improve the cold star problem efficiently in the provision of personalized well-being in regard to health food service. These methods include: (1) switching among content-based and collaborative filtering; (2) identifying the user context with the integration of dynamic filtering; and (3) learning the profiles with the help of processing and screening of reflecting feedback loops. The experimental results were evaluated by using three absolute error measures, providing comparable results with other studies relative to machine learning domains. The effects of using the hybrid learning method are gathered with the help of the experimental results. Our experiments also show that the hybrid method improves accuracy by 14.61% of the average error predicted in the recommender systems in comparison to the collaborative methods, which mainly focus on the computation of similar entities. View Full-Text
Keywords: machine learning; hybrid recommender system; dynamic well-being services machine learning; hybrid recommender system; dynamic well-being services

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Nouh, R.M.; Lee, H.-H.; Lee, W.-J.; Lee, J.-D. A Smart Recommender Based on Hybrid Learning Methods for Personal Well-Being Services. Sensors 2019, 19, 431.

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