Removing hidden confounding in recommendation: a unified multi-task learning approach

H Li, K Wu, C Zheng, Y ** modelling with collaborative filtering for cross domain recommendation
W Liu, C Chen, X Liao, M Hu, J Su, Y Tan… - Proceedings of the ACM …, 2024 - dl.acm.org
User cold-start recommendation aims to provide accurate items for the newly joint users and
is a hot and challenging problem. Nowadays as people participant in different domains, how …

CE-RCFR: Robust counterfactual regression for consensus-enabled treatment effect estimation

F Wang, C Chen, W Liu, T Fan, X Liao, Y Tan… - Proceedings of the 30th …, 2024 - dl.acm.org
Estimating individual treatment effects (ITE) from observational data is challenging due to
the absence of counterfactuals and the treatment selection bias. Prevalent ITE estimation …

Contrastive balancing representation learning for heterogeneous dose-response curves estimation

M Zhu, A Wu, H Li, R **ong, B Li, X Yang… - Proceedings of the …, 2024 - ojs.aaai.org
Estimating the individuals' potential response to varying treatment doses is crucial for
decision-making in areas such as precision medicine and management science. Most …

Rethinking the diffusion models for missing data imputation: A gradient flow perspective

Z Chen, H Li, F Wang, O Zhang, H Xu… - Advances in …, 2025 - proceedings.neurips.cc
Diffusion models have demonstrated competitive performance in missing data imputation
(MDI) task. However, directly applying diffusion models to MDI produces suboptimal …

SPOT-I: Similarity preserved optimal transport for industrial IoT data imputation

H Wang, Z Chen, Z Liu, L Pan, H Xu… - IEEE Transactions …, 2024 - ieeexplore.ieee.org
Missing data imputation is a critical aspect of the Industrial Internet-of-Things (IIoT), which is
uniquely challenged by local relationships within data due to different operational contexts …

Counterclr: Counterfactual contrastive learning with non-random missing data in recommendation

J Wang, H Li, C Zhang, D Liang, E Yu… - … Conference on Data …, 2023 - ieeexplore.ieee.org
Recommender systems are designed to learn user preferences from observed feedback and
comprise many fundamental tasks, such as rating prediction and post-click conversion rate …

Uncovering the propensity identification problem in debiased recommendations

H Zhang, S Wang, H Li, C Zheng… - 2024 IEEE 40th …, 2024 - ieeexplore.ieee.org
In database of recommender systems, users' ratings for most items are usually missing,
resulting in selection bias when users selectively choose items to rate. To address this …

Improving neural network generalization on data-limited regression with doubly-robust boosting

H Wang - Proceedings of the AAAI Conference on Artificial …, 2024 - ojs.aaai.org
Enhancing the generalization performance of neural networks remains a formidable
challenge, due to the model selection trade-off between training error and generalization …