User-Centric Diet Recommender Systems with Human-Recommender System Interaction (HRI) based Serendipity Aspect

Raihan Romzi Rakhman; Dana Sulistyo Kusumo

doi:10.47065/bits.v6i2.5754

Raihan Romzi Rakhman Telkom University, Indonesia
Dana Sulistyo Kusumo * Telkom University, Indonesia

(*) Corresponding Author

DOI: https://doi.org/10.47065/bits.v6i2.5754

Keywords: Content-Based Recommendation System; Serendipity; TF-IDF; Cosine Similarity; K-Means

Abstract

Currently, obesity is on the rise globally with predictions to continue rising until 2030. Adopting a healthy diet and increasing physical activity are key strategies to reduce the risk of obesity. However, there are significant challenges in adhering to a diet, including the monotony of food choices and difficulty in maintaining motivation. This research aims to develop a user-centered dietary recommendation system that addresses these challenges by introducing serendipity into the diet planning process. Serendipity in this context refers to generating unexpected yet relevant food recommendations, thereby enhancing user engagement and satisfaction. The system uses content-based recommendation techniques, including TF-IDF, Cosine Similarity, and K-Means clustering, to provide personalized dietary suggestions based on individual health profiles, calorie needs, and food preferences. The evaluation of the system demonstrated that incorporating serendipity into recommendations significantly improves user experience and adherence to dietary plans. The findings highlight the potential of serendipity to transform dietary adherence, making the dieting process more enjoyable and sustainable.

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