Abstract
Context-aware recommender systems (CARS) have been extensively studied and effectively implemented over the past few years. Collaborative filtering (CF) has been established as a successful recommendation technique to provide web personalized services and products in an efficient way. In this chapter, we propose a spatio-temporal-based CF method for CARS to incorporate spatio-temporal relevance in the recommendation process. To deal with the new-user cold start problem, we exploit demographic features from the user’s rating profile and incorporate this into the recommendation process. Our spatio-temporal-based CF approach provides a combined model to utilize both a spatial and temporal context in ratings simultaneously, thereby providing effective and accurate predictions. Considering a user’s temporal preferences in visiting various venues to achieve better personalization, a genetic algorithm (GA) is used to learn temporal weights for each individual. Experimental results demonstrate that our proposed schemes using two benchmark real-world datasets outperform other traditional schemes.
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Linda, S., Bharadwaj, K.K. (2019). A Genetic Algorithm Approach to Context-Aware Recommendations Based on Spatio-temporal Aspects. In: Krishna, A., Srikantaiah, K., Naveena, C. (eds) Integrated Intelligent Computing, Communication and Security. Studies in Computational Intelligence, vol 771. Springer, Singapore. https://doi.org/10.1007/978-981-10-8797-4_7
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