Publications
Export 6 results:
Author Title Type [ Year
] Filters: Author is Dimitris Spiliotopoulos and Keyword is Sparse Datasets [Clear All Filters]
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2026. Optimizing Collaborative Filtering in Very Sparse Datasets: a Confidence-based Approach. Proceedings of the 2026 International Conference on Information, Intelligence, Systems and Applications.
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2024. Experimental results for Evaluating User Similarity Metrics in Sparse Collaborative Filtering Datasets. SODA Lab Technical Reports.
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2022. On Producing Accurate Rating Predictions in Sparse Collaborative Filtering Datasets. Information. 13:302.
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2019. Improving Collaborative Filtering’s Rating Prediction Coverage in Sparse Datasets through the Introduction of Virtual Near Neighbors. Proceedings of the 10th International Conference on Information, Intelligence, Systems and Applications (IISA2019).