activity
20222025
most citedDyTed: Disentangled Representation Learning for Discrete-time Dynamic Graph

30 citations · 43 across the 10 of their papers we have counts for

collaborators

12 papers

cs.IR2025

AsarRec: Adaptive Sequential Augmentation for Robust Self-supervised Sequential Recommendation

Kaike Zhang, Qi Cao, Fei Sun +3

Sequential recommender systems have demonstrated strong capabilities in modeling users' dynamic preferences and capturing item transition patterns. However, real-world user behavio…

cs.IR2025

The 2nd Workshop on Human-Centered Recommender Systems

Kaike Zhang, Jiakai Tang, Du Su +6

Recommender systems shape how people discover information, form opinions, and connect with society. Yet, as their influence grows, traditional metrics, e.g., accuracy, clicks, and…

cs.IR2025

GoalRank: Group-Relative Optimization for a Large Ranking Model

Kaike Zhang, Xiaobei Wang, Shuchang Liu +7

Mainstream ranking approaches typically follow a Generator-Evaluator two-stage paradigm, where a generator produces candidate lists and an evaluator selects the best one. Recent wo…

cs.IR2025

From Generation to Consumption: Personalized List Value Estimation for Re-ranking

Kaike Zhang, Xiaobei Wang, Xiaoyu Yang +5

Re-ranking is critical in recommender systems for optimizing the order of recommendation lists, thus improving user satisfaction and platform revenue. Most existing methods follow…

cs.IR2025

Personalized Denoising Implicit Feedback for Robust Recommender System

Kaike Zhang, Qi Cao, Yunfan Wu +3

While implicit feedback is foundational to modern recommender systems, factors such as human error, uncertainty, and ambiguity in user behavior inevitably introduce significant noi…

cs.IR2024

The 1st Workshop on Human-Centered Recommender Systems

Kaike Zhang, Yunfan Wu, Yougang lyu +6

Recommender systems are quintessential applications of human-computer interaction. Widely utilized in daily life, they offer significant convenience but also present numerous chall…

cs.IR2024

Understanding and Improving Adversarial Collaborative Filtering for Robust Recommendation

Kaike Zhang, Qi Cao, Yunfan Wu +3

Adversarial Collaborative Filtering (ACF), which typically applies adversarial perturbations at user and item embeddings through adversarial training, is widely recognized as an ef…

cs.IR2024★ 9 cited

Improving the Shortest Plank: Vulnerability-Aware Adversarial Training for Robust Recommender System

Kaike Zhang, Qi Cao, Yunfan Wu +3

Recommender systems play a pivotal role in mitigating information overload in various fields. Nonetheless, the inherent openness of these systems introduces vulnerabilities, allowi…

cs.IR2024

Accelerating the Surrogate Retraining for Poisoning Attacks against Recommender Systems

Yunfan Wu, Qi Cao, Shuchang Tao +3

Recent studies have demonstrated the vulnerability of recommender systems to data poisoning attacks, where adversaries inject carefully crafted fake user interactions into the trai…

cs.IR2024★ 1 cited

LoRec: Large Language Model for Robust Sequential Recommendation against Poisoning Attacks

Kaike Zhang, Qi Cao, Yunfan Wu +3

Sequential recommender systems stand out for their ability to capture users' dynamic interests and the patterns of item-to-item transitions. However, the inherent openness of seque…

cs.IR2023★ 3 cited

Robust Recommender System: A Survey and Future Directions

Kaike Zhang, Qi Cao, Fei Sun +4

With the rapid growth of information, recommender systems have become integral for providing personalized suggestions and overcoming information overload. However, their practical…

cs.SI2022★ 30 cited

DyTed: Disentangled Representation Learning for Discrete-time Dynamic Graph

Kaike Zhang, Qi Cao, Gaolin Fang +4

Unsupervised representation learning for dynamic graphs has attracted a lot of research attention in recent years. Compared with static graph, the dynamic graph is a comprehensive…