Beyond-accuracy: a review on diversity, serendipity, and fairness in recommender systems based on graph neural networks

T Duricic, D Kowald, E Lacic, E Lex - Frontiers in Big Data, 2023 - frontiersin.org
By providing personalized suggestions to users, recommender systems have become
essential to numerous online platforms. Collaborative filtering, particularly graph-based …

Privacy-preserved and Responsible Recommenders: From Conventional Defense to Federated Learning and Blockchain

W Ali, X Zhou, J Shao - ACM Computing Surveys, 2024 - dl.acm.org
Recommender systems (RS) play an integral role in many online platforms. Exponential
growth and potential commercial interests are raising significant concerns around privacy …

Pacer: Network embedding from positional to structural

Y Yan, Y Hu, Q Zhou, L Liu, Z Zeng, Y Chen… - Proceedings of the …, 2024 - dl.acm.org
Network embedding plays an important role in a variety of social network applications.
Existing network embedding methods, explicitly or implicitly, can be categorized into …

Leveraging Opposite Gender Interaction Ratio as a Path towards Fairness in Online Dating Recommendations Based on User Sexual Orientation

Y Zhao, Y Wang, Y Zhang, P Wisniewski… - Proceedings of the …, 2024 - ojs.aaai.org
Online dating platforms have gained widespread popularity as a means for individuals to
seek potential romantic relationships. While recommender systems have been designed to …

A topological perspective on demystifying gnn-based link prediction performance

Y Wang, T Zhao, Y Zhao, Y Liu, X Cheng… - arXiv preprint arXiv …, 2023 - arxiv.org
Graph Neural Networks (GNNs) have shown great promise in learning node embeddings for
link prediction (LP). While numerous studies aim to improve the overall LP performance of …

Can One Embedding Fit All? A Multi-Interest Learning Paradigm Towards Improving User Interest Diversity Fairness

Y Zhao, M Xu, H Chen, Y Chen, Y Cai, R Islam… - Proceedings of the …, 2024 - dl.acm.org
Recommender systems (RSs) have gained widespread applications across various
domains owing to the superior ability to capture users' interests. However, the complexity …

Are We Really Achieving Better Beyond-Accuracy Performance in Next Basket Recommendation?

M Li, Y Liu, S Jullien, M Ariannezhad, A Yates… - Proceedings of the 47th …, 2024 - dl.acm.org
Next basket recommendation (NBR) is a special type of sequential recommendation that is
increasingly receiving attention. So far, most NBR studies have focused on optimizing the …

Diversifying Sequential Recommendation with Retrospective and Prospective Transformers

C Shi, P Ren, D Fu, X Xin, S Yang, F Cai… - ACM Transactions on …, 2024 - dl.acm.org
Previous studies on sequential recommendation (SR) have predominantly concentrated on
optimizing recommendation accuracy. However, there remains a significant gap in …

RosePO: Aligning LLM-based Recommenders with Human Values

J Liao, X He, R Xie, J Wu, Y Yuan, X Sun… - arXiv preprint arXiv …, 2024 - arxiv.org
Recently, there has been a growing interest in leveraging Large Language Models (LLMs)
for recommendation systems, which usually adapt a pre-trained LLM to the recommendation …

On Evaluation Metrics for Diversity-enhanced Recommendations

X Li, G Cong, G Xiao, Y Xu, W Jiang, K Li - Proceedings of the 33rd ACM …, 2024 - dl.acm.org
Diversity is increasingly recognized as a crucial factor in recommendation systems for
enhancing user satisfaction. However, existing studies on diversity-enhanced …