activity
20192023
most citedAdvances and Challenges in Conversational Recommender Systems: A Survey

343 citations · 820 across the 10 of their papers we have counts for

collaborators

10 papers

cs.IR2023★ 1 cited

RecAD: Towards A Unified Library for Recommender Attack and Defense

Changsheng Wang, Jianbai Ye, Wenjie Wang +3

In recent years, recommender systems have become a ubiquitous part of our daily lives, while they suffer from a high risk of being attacked due to the growing commercial and social…

cs.IR2023★ 63 cited

Alleviating Matthew Effect of Offline Reinforcement Learning in Interactive Recommendation

Chongming Gao, Kexin Huang, Jiawei Chen +6

Offline reinforcement learning (RL), a technology that offline learns a policy from logged data without the need to interact with online environments, has become a favorable choice…

cs.IR2023

Vague Preference Policy Learning for Conversational Recommendation

Gangyi Zhang, Chongming Gao, Wenqiang Lei +6

Conversational recommendation systems (CRS) commonly assume users have clear preferences, leading to potential over-filtering of relevant alternatives. However, users often exhibit…

cs.IR2023★ 40 cited

On the Theories Behind Hard Negative Sampling for Recommendation

Wentao Shi, Jiawei Chen, Fuli Feng +4

Negative sampling has been heavily used to train recommender models on large-scale data, wherein sampling hard examples usually not only accelerates the convergence but also improv…

cs.IR2022★ 126 cited

KuaiRand: An Unbiased Sequential Recommendation Dataset with Randomly Exposed Videos

Chongming Gao, Shijun Li, Yuan Zhang +5

Recommender systems deployed in real-world applications can have inherent exposure bias, which leads to the biased logged data plaguing the researchers. A fundamental way to addres…

cs.IR2022★ 12 cited

CIRS: Bursting Filter Bubbles by Counterfactual Interactive Recommender System

Chongming Gao, Shiqi Wang, Shijun Li +6

While personalization increases the utility of recommender systems, it also brings the issue of filter bubbles. E.g., if the system keeps exposing and recommending the items that t…

cs.IR2022★ 2 cited

Who Are the Best Adopters? User Selection Model for Free Trial Item Promotion

Shiqi Wang, Chongming Gao, Min Gao +3

With the increasingly fierce market competition, offering a free trial has become a potent stimuli strategy to promote products and attract users. By providing users with opportuni…

cs.IR2022★ 155 cited

KuaiRec: A Fully-observed Dataset and Insights for Evaluating Recommender Systems

Chongming Gao, Shijun Li, Wenqiang Lei +6

The progress of recommender systems is hampered mainly by evaluation as it requires real-time interactions between humans and systems, which is too laborious and expensive. This is…

cs.IR2021★ 343 cited

Advances and Challenges in Conversational Recommender Systems: A Survey

Chongming Gao, Wenqiang Lei, Xiangnan He +2

Recommender systems exploit interaction history to estimate user preference, having been heavily used in a wide range of industry applications. However, static recommendation model…

cs.IR2019★ 78 cited

Generating Reliable Friends via Adversarial Training to Improve Social Recommendation

Junliang Yu, Min Gao, Hongzhi Yin +3

Most of the recent studies of social recommendation assume that people share similar preferences with their friends and the online social relations are helpful in improving traditi…