Improving POI Recommendation through Collaborative Filtering by incorporating the Geographical Factor into the Similarity Calculation
Received: 20 February 2025 | Revised: 30 March 2025 | Accepted: 2 April 2025 | Online: 8 May 2025
Corresponding author: Djelloul Bettache
Abstract
In recent years, the popularity of Location-Based Social Networks (LBSNs) has surged among tourists seeking to share their travel experiences with their social circles. Although these platforms generate vast amounts of data, effectively utilizing this information to provide personalized recommendations poses significant challenges. Point-Of-Interest (POI) recommendation systems have emerged as a promising solution, leveraging data from LBSNs to suggest tailored destinations for tourists. Collaborative Filtering (CF) has gained recognition as a widely adopted memory-based technique. By analyzing user similarities, CF often uses similarity metrics to predict the likelihood of tourists visiting specific POIs. This study introduces a novel method, called IUPJS (Incorporation of User Proximity in Jaccard Similarity), which extends the traditional Jaccard index by integrating geographic proximity into the similarity calculation. Experimental evaluations on a Foursquare data set indicate that the proposed IUPJS significantly enhances the effectiveness of the recommendation system. This improvement is particularly evident in key evaluation metrics, including precision, recall, F1-score, mAP, and NDCG, exceeding the performance of traditional methods commonly employed in the literature.
Keywords:
tourism, POI recommendation, collaborative filtering, geographic proximity, similarity measuresDownloads
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Copyright (c) 2025 Djelloul Bettache, Nassim Dennouni, Ahmed Harbouche
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