Bias and debias in recommender system: A survey and future directions

J Chen, H Dong, X Wang, F Feng, M Wang… - ACM Transactions on …, 2023 - dl.acm.org
While recent years have witnessed a rapid growth of research papers on recommender
system (RS), most of the papers focus on inventing machine learning models to better fit …

Disentangling user interest and conformity for recommendation with causal embedding

Y Zheng, C Gao, X Li, X He, Y Li, D ** - Proceedings of the Web …, 2021 - dl.acm.org
Recommendation models are usually trained on observational interaction data. However,
observational interaction data could result from users' conformity towards popular items …

Model-agnostic counterfactual reasoning for eliminating popularity bias in recommender system

T Wei, F Feng, J Chen, Z Wu, J Yi, X He - Proceedings of the 27th ACM …, 2021 - dl.acm.org
The general aim of the recommender system is to provide personalized suggestions to
users, which is opposed to suggesting popular items. However, the normal training …

Propensity matters: Measuring and enhancing balancing for recommendation

H Li, Y **ao, C Zheng, P Wu… - … Conference on Machine …, 2023 - proceedings.mlr.press
Propensity-based weighting methods have been widely studied and demonstrated
competitive performance in debiased recommendations. Nevertheless, there are still many …

Deconfounded recommendation for alleviating bias amplification

W Wang, F Feng, X He, X Wang, TS Chua - Proceedings of the 27th ACM …, 2021 - dl.acm.org
Recommender systems usually amplify the biases in the data. The model learned from
historical interactions with imbalanced item distribution will amplify the imbalance by over …

Matrix completion methods for causal panel data models

S Athey, M Bayati, N Doudchenko… - Journal of the …, 2021 - Taylor & Francis
In this article, we study methods for estimating causal effects in settings with panel data,
where some units are exposed to a treatment during some periods and the goal is …

Bias issues and solutions in recommender system: Tutorial on the recsys 2021

J Chen, X Wang, F Feng, X He - … of the 15th ACM conference on …, 2021 - dl.acm.org
Recommender systems (RS) have demonstrated great success in information seeking.
Recent years have witnessed a large number of work on inventing recommendation models …

Unbiased sequential recommendation with latent confounders

Z Wang, S Shen, Z Wang, B Chen, X Chen… - Proceedings of the ACM …, 2022 - dl.acm.org
Sequential recommendation holds the promise of understanding user preference by
capturing successive behavior correlations. Existing research focus on designing different …

On the opportunity of causal learning in recommendation systems: Foundation, estimation, prediction and challenges

P Wu, H Li, Y Deng, W Hu, Q Dai, Z Dong, J Sun… - arxiv preprint arxiv …, 2022 - arxiv.org
Recently, recommender system (RS) based on causal inference has gained much attention
in the industrial community, as well as the states of the art performance in many prediction …

User-controllable recommendation against filter bubbles

W Wang, F Feng, L Nie, TS Chua - … of the 45th international ACM SIGIR …, 2022 - dl.acm.org
Recommender systems usually face the issue of filter bubbles: over-recommending
homogeneous items based on user features and historical interactions. Filter bubbles will …