activity
20232026
most citedOn the Effectiveness of Unlearning in Session-Based Recommendation

15 citations · 15 across the 6 of their papers we have counts for

collaborators

6 papers

cs.CL2026

Beyond Imitation: Reflective On-Policy Self-Distillation for LLM Reasoning

Ziqi Zhao, Xinyu Ma, Liu Yang +6

On-policy self-distillation (OPSD) improves the reasoning capabilities of large language models (LLMs) by providing dense token-level supervision for on-policy rollouts. However, e…

cs.AI2026

Reinforced Efficient Reasoning via Semantically Diverse Exploration

Ziqi Zhao, Zhaochun Ren, Jiahong Zou +9

Reinforcement learning with verifiable rewards (RLVR) has proven effective in enhancing the reasoning of large language models (LLMs). Monte Carlo Tree Search (MCTS)-based extensio…

cs.IR2025

Curriculum Approximate Unlearning for Session-based Recommendation

Liu Yang, Zhaochun Ren, Ziqi Zhao +7

Approximate unlearning for session-based recommendation refers to eliminating the influence of specific training samples from the recommender without retraining of (sub-)models. Gr…

cs.IR2025

Improving Sequential Recommenders through Counterfactual Augmentation of System Exposure

Ziqi Zhao, Zhaochun Ren, Jiyuan Yang +7

In sequential recommendation (SR), system exposure refers to items that are exposed to the user. Typically, only a few of the exposed items would be interacted with by the user. Al…

cs.LG2024

Offline Trajectory Optimization for Offline Reinforcement Learning

Ziqi Zhao, Zhaochun Ren, Liu Yang +6

Offline reinforcement learning (RL) aims to learn policies without online explorations. To enlarge the training data, model-based offline RL learns a dynamics model which is utiliz…

cs.IR2023★ 15 cited

On the Effectiveness of Unlearning in Session-Based Recommendation

Xin Xin, Liu Yang, Ziqi Zhao +4

Session-based recommendation predicts users' future interests from previous interactions in a session. Despite the memorizing of historical samples, the request of unlearning, i.e.…