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Leveraging Spectral Clustering and Long Short-Term Memory Techniques for Green Hotel Recommendations in Saudi Arabia

Author

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  • Abdullah Alghamdi

    (Information Systems Department, College of Computer Science and Information Systems, Najran University, Najran 61441, Saudi Arabia
    AI Lab, Science and Engineering Research Center (SERC), Najran University, Najran 61441, Saudi Arabia)

Abstract

Online recommendation agents have demonstrated their value in various contexts by helping users navigate information overload, supporting decision-making, and influencing user behavior. There is a lack of studies focusing on recommendation systems for green hotels that utilize user-generated content from social networking and e-commerce platforms. While numerous studies have explored the use of real-world datasets for hotel recommendations, the development of recommendation systems specifically for green hotels remains underexplored, particularly in the context of Saudi Arabia. This study attempts to develop a new approach for green hotel recommendations using text mining and Long Short-Term Memory techniques. Latent Dirichlet Allocation is used to identify the main aspects of users’ preferences from the user-generated content, which will help the recommender system to provide more accurate recommendations to the users. Long Short-Term Memory is used for preference prediction based on numerical ratings. To better perform recommendations, a clustering technique is used to overcome the scalability issue of the proposed recommender system, specifically when there is a large amount of data in the datasets. Specifically, a spectral clustering algorithm is used to cluster the users’ ratings on green hotels. To evaluate the proposed recommendation method, 4684 reviews were collected from Saudi Arabia’s green hotels on the TripAdvisor platform. The method was evaluated for its effectiveness in solving sparsity issues, recommendation accuracy, and scalability. It was found that Long Short-Term Memory better predicts the customers’ overall ratings on green hotels. The comparison results demonstrated that the proposed method provides the highest precision (Precision at Top @5 = 89.44, Precision at Top @7 = 88.21) and lowest prediction error (Mean Absolute Error = 0.84) in hotel recommendations. The author discusses the results and presents the research implications based on the findings of the proposed method.

Suggested Citation

  • Abdullah Alghamdi, 2025. "Leveraging Spectral Clustering and Long Short-Term Memory Techniques for Green Hotel Recommendations in Saudi Arabia," Sustainability, MDPI, vol. 17(5), pages 1-28, March.
    • Handle: RePEc:gam:jsusta:v:17:y:2025:i:5:p:2328-:d:1607054
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    References listed on IDEAS

    as
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    5. Alegre, Joaquín & Sard, Maria, 2015. "When demand drops and prices rise. Tourist packages in the Balearic Islands during the economic crisis," Tourism Management, Elsevier, vol. 46(C), pages 375-385.
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