activity
20232026
most citedRobust Collaborative Filtering to Popularity Distribution Shift

25 citations · 55 across the 25 of their papers we have counts for

collaborators

27 papers

cs.IR2026

Reasoning over Semantic IDs Enhances Generative Recommendation

Yingzhi He, Yan Sun, Junfei Tan +6

Recent advances in generative recommendation have leveraged pretrained LLMs by formulating sequential recommendation as autoregressive generation over a unified token space compris…

cs.CL2026

Do LLMs and VLMs Share Neurons for Inference? Evidence and Mechanisms of Cross-Modal Transfer

Chenhang Cui, An Zhang, Yuxin Chen +5

Large vision-language models (LVLMs) have rapidly advanced across various domains, yet they still lag behind strong text-only large language models (LLMs) on tasks that require mul…

cs.CL2026

Transport and Merge: Cross-Architecture Merging for Large Language Models

Chenhang Cui, Binyun Yang, Fei Shen +5

Large language models (LLMs) achieve strong capabilities by scaling model capacity and training data, yet many real-world deployments rely on smaller models trained or adapted from…

cs.AI2026

AgentNoiseBench: Benchmarking Robustness of Tool-Using LLM Agents Under Noisy Condition

Ruipeng Wang, Yuxin Chen, Yukai Wang +9

Recent advances in large language models have enabled LLM-based agents to achieve strong performance on a variety of benchmarks. However, their performance in real-world deployment…

cs.AI2026

Reinforcing Chain-of-Thought Reasoning with Self-Evolving Rubrics

Leheng Sheng, Wenchang Ma, Ruixin Hong +3

Despite chain-of-thought (CoT) playing crucial roles in LLM reasoning, directly rewarding it is difficult: training a reward model demands heavy human labeling efforts, and static…

cs.CL2026

When to Memorize and When to Stop: Gated Recurrent Memory for Long-Context Reasoning

Leheng Sheng, Yongtao Zhang, Wenchang Ma +6

While reasoning over long context is crucial for various real-world applications, it remains challenging for large language models (LLMs) as they suffer from performance degradatio…

cs.CL2026

Learning to Self-Verify Makes Language Models Better Reasoners

Yuxin Chen, Yu Wang, Yi Zhang +9

Recent large language models (LLMs) achieve strong performance in generating promising reasoning paths for complex tasks. However, despite powerful generation ability, LLMs remain…

cs.AI2026

Risky-Bench: Evaluating Agentic Safety Risks in Real-World Life-Assist Deployments

Jingnan Zheng, Yanzhen Luo, Jingjun Xu +8

Large Language Models (LLMs) are increasingly deployed as agents that operate in real-world environments, introducing safety risks beyond linguistic harm through tool use, external…

cs.AI2026

Self-Guard: Defending Large Reasoning Models via enhanced self-reflection

Jingnan Zheng, Jingjun Xu, Yanzhen Luo +6

The emergence of Large Reasoning Models (LRMs) introduces a new paradigm of explicit reasoning, enabling remarkable advances yet posing unique risks such as reasoning manipulation…

cs.CL2026

Understanding Multilingualism in Mixture-of-Experts LLMs: Routing Mechanism, Expert Specialization, and Layerwise Steering

Yuxin Chen, Zhengzhou Cai, Xiangtian Ji +4

Mixture-of-Experts (MoE) architectures have shown strong multilingual capabilities, yet the internal mechanisms underlying performance gains and cross-language differences remain i…

cs.AI2025

LIMI: Less is More for Agency

Yang Xiao, Mohan Jiang, Jie Sun +18

We define Agency as the emergent capacity of AI systems to function as autonomous agents actively discovering problems, formulating hypotheses, and executing solutions through self…

cs.AI2025

AlphaAlign: Incentivizing Safety Alignment with Extremely Simplified Reinforcement Learning

Yi Zhang, An Zhang, XiuYu Zhang +4

Large language models (LLMs), despite possessing latent safety understanding from their vast pretraining data, remain vulnerable to generating harmful content and exhibit issues su…

cs.AI2025

On Reasoning Strength Planning in Large Reasoning Models

Leheng Sheng, An Zhang, Zijian Wu +5

Recent studies empirically reveal that large reasoning models (LRMs) can automatically allocate more reasoning strengths (i.e., the number of reasoning tokens) for harder problems,…

cs.LG2025★ 1 cited

AlphaSteer: Learning Refusal Steering with Principled Null-Space Constraint

Leheng Sheng, Changshuo Shen, Weixiang Zhao +6

As LLMs are increasingly deployed in real-world applications, ensuring their ability to refuse malicious prompts, especially jailbreak attacks, is essential for safe and reliable u…

cs.IR2024

Generate and Instantiate What You Prefer: Text-Guided Diffusion for Sequential Recommendation

Guoqing Hu, Zhengyi Yang, Zhibo Cai +2

Recent advancements in generative recommendation systems, particularly in the realm of sequential recommendation tasks, have shown promise in enhancing generalization to new items.…

cs.CV2024

Disentangling Masked Autoencoders for Unsupervised Domain Generalization

An Zhang, Han Wang, Xiang Wang +1

Domain Generalization (DG), designed to enhance out-of-distribution (OOD) generalization, is all about learning invariance against domain shifts utilizing sufficient supervision si…

cs.IR2024★ 1 cited

Language Representations Can be What Recommenders Need: Findings and Potentials

Leheng Sheng, An Zhang, Yi Zhang +3

Recent studies empirically indicate that language models (LMs) encode rich world knowledge beyond mere semantics, attracting significant attention across various fields. However, i…

cs.IR2024★ 4 cited

On Softmax Direct Preference Optimization for Recommendation

Yuxin Chen, Junfei Tan, An Zhang +5

Recommender systems aim to predict personalized rankings based on user preference data. With the rise of Language Models (LMs), LM-based recommenders have been widely explored due…

cs.CL2024★ 4 cited

Hello Again! LLM-powered Personalized Agent for Long-term Dialogue

Hao Li, Chenghao Yang, An Zhang +3

Open-domain dialogue systems have seen remarkable advancements with the development of large language models (LLMs). Nonetheless, most existing dialogue systems predominantly focus…

q-bio.QM2024★ 2 cited

ReactXT: Understanding Molecular "Reaction-ship" via Reaction-Contextualized Molecule-Text Pretraining

Zhiyuan Liu, Yaorui Shi, An Zhang +5

Molecule-text modeling, which aims to facilitate molecule-relevant tasks with a textual interface and textual knowledge, is an emerging research direction. Beyond single molecules,…

q-bio.QM2024★ 3 cited

ProtT3: Protein-to-Text Generation for Text-based Protein Understanding

Zhiyuan Liu, An Zhang, Hao Fei +4

Language Models (LMs) excel in understanding textual descriptions of proteins, as evident in biomedical question-answering tasks. However, their capability falters with raw protein…

cs.IR2024

General Debiasing for Graph-based Collaborative Filtering via Adversarial Graph Dropout

An Zhang, Wenchang Ma, Pengbo Wei +2

Graph neural networks (GNNs) have shown impressive performance in recommender systems, particularly in collaborative filtering (CF). The key lies in aggregating neighborhood inform…

cs.IR2023★ 6 cited

Empowering Collaborative Filtering with Principled Adversarial Contrastive Loss

An Zhang, Leheng Sheng, Zhibo Cai +2

Contrastive Learning (CL) has achieved impressive performance in self-supervised learning tasks, showing superior generalization ability. Inspired by the success, adopting CL into…

cs.LG2023★ 1 cited

ReLM: Leveraging Language Models for Enhanced Chemical Reaction Prediction

Yaorui Shi, An Zhang, Enzhi Zhang +2

Predicting chemical reactions, a fundamental challenge in chemistry, involves forecasting the resulting products from a given reaction process. Conventional techniques, notably tho…