2022

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Parameter Tuning of Reranking-based Diversification Algorithms using Total Curvature Analysis
Shameem Puthiya Parambath | Siwei Liu | Christos Anagnostopoulos | Roderick Murray-Smith | Iadh Ounis
ICTIR '22: The 2022 ACM SIGIR International Conference on the Theory of Information Retrieval, Madrid, Spain, July 11 - 12, 2022

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An MLP-based Algorithm for Efficient Contrastive Graph Recommendations
Siwei Liu | Iadh Ounis | Craig Macdonald
SIGIR '22: The 45th International ACM SIGIR Conference on Research and Development in Information Retrieval, Madrid, Spain, July 11 - 15, 2022

2020

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Enhancing Graph Neural Networks for Recommender Systems
Siwei Liu
Proceedings of the 43rd International ACM SIGIR conference on research and development in Information Retrieval, SIGIR 2020, Virtual Event, China, July 25-30, 2020

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A Heterogeneous Graph Neural Model for Cold-start Recommendation
Siwei Liu | Iadh Ounis | Craig Macdonald | Zaiqiao Meng
Proceedings of the 43rd International ACM SIGIR conference on research and development in Information Retrieval, SIGIR 2020, Virtual Event, China, July 25-30, 2020

2019

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Social Regularisation in a BPR-based Venue Recommendation System
Siwei Liu | Iadh Ounis | Craig Macdonald
Proceedings of the 9th PhD Symposium on Future Directions in Information Access co-located with 12th European Summer School in Information Retrieval (ESSIR 2019), Milan, Italy, July 17th - to - 18th, 2019

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