activity
20202026
most citedUser-oriented Fairness in Recommendation

214 citations · 1.5k across the 43 of their papers we have counts for

collaborators

48 papers

cs.SE2026

Where Should a Stuck Agent Spend Its Next Tokens? Causal Attribution of Inference-Time Resources

Saiyue Lyu, Jerrold Huang, Yunbei Zhang +4

Inference-time scaling is often treated as a token-budget problem, but a failed coding agent can seek qualitatively different resources: computation, information, or feedback. We i…

cs.CR2026

SkillScreen: High-Recall Screening of Malicious Agent Skills with Decision Models

Jerrold Huang, Junwei Quan, Saiyue Lyu +2

Agent skills turn natural-language instructions into actions, creating a security challenge: legitimate automation and malicious behaviour can look deceptively similar. A practical…

cs.AI2026

VERSE: Verified Self-Evolving Optimizer for Agent Harnesses

Zekai Wang, Yingqiang Ge, Zekun Wang +6

Harness evolution improves an LLM agent's prompts, tools, and workflow, while the optimizer's own tools and procedures often remain fixed. We study whether an optimizer can improve…

cs.SE2026

Safety Must Survive Self-Improvement: Why Failures Persist and How Agents Recover

Yunbei Zhang, Janet Wang, Saiyue Lyu +5

Recursive self-improvement (RSI) allows agents to carry useful changes across generations. Maintaining safety across these generations involves both preventing unsafe behavior from…

cs.MA2026

Deny Without Disabling: Authorization-Paired Evaluation and Control for Multi-Agent Systems

Yunbei Zhang, Saiyue Lyu, Janet Wang +4

Multi-agent systems derive their capabilities from sharing evidence, delegating tasks, and combining information across agents. The same process creates a safety problem: contribut…

cs.AI2026

DRIFTLENS: Measuring Memory-Induced Reasoning Drift in Personalized Language Models

Xi Fang, Weijie Xu, Yingqiang Ge +3

Personalization changes what a model says to a user; we show that it can also change the reasoning trajectory used to justify the response. Modern LLMs personalize interactions by…

cs.CR2026

One Skill, Two Masters: Serving Users and Attackers through Skill Injection

Haochang Hao, Dehai Min, Zhifang Zhang +5

Large language model agents use skills that package reusable instructions, code, and resources. Existing skill-injection attacks exploit trust in these packages by adding malicious…

cs.AI2026

Stop Comparing LLM Agents Without Disclosing the Harness

Yunbei Zhang, Janet Wang, Yingqiang Ge +3

This position paper argues that, for long-horizon tasks evaluated across models with comparable frontier capability, the agent execution harness, namely the infrastructure layer th…

cs.AI2026★ 1 cited

ClawSafety: "Safe" LLMs, Unsafe Agents

Bowen Wei, Yunbei Zhang, Jinhao Pan +5

Personal AI agents like OpenClaw run with elevated privileges on users' local machines, where a single successful prompt injection can leak credentials, redirect financial transact…

cs.CL2026

SafeCRS: Personalized Safety Alignment for LLM-Based Conversational Recommender Systems

Haochang Hao, Yifan Xu, Xinzhuo Li +2

Current LLM-based conversational recommender systems (CRS) primarily optimize recommendation accuracy and user satisfaction. We identify an underexplored vulnerability in which rec…

cs.SI2026

Agents in the Wild: Safety, Society, and the Illusion of Sociality on Moltbook

Yunbei Zhang, Kai Mei, Ming Liu +5

We present the first large-scale empirical study of Moltbook, an AI-only social platform where 27,269 agents produced 137,485 posts and 345,580 comments over 9 days. We report thre…

cs.CR2026

Visual Exclusivity Attacks: Automatic Multimodal Red Teaming via Agentic Planning

Yunbei Zhang, Yingqiang Ge, Weijie Xu +3

Current multimodal red teaming treats images as wrappers for malicious payloads via typography or adversarial noise. These attacks are structurally brittle, as standard defenses ne…

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★ 1 cited

IDGenRec: LLM-RecSys Alignment with Textual ID Learning

Juntao Tan, Shuyuan Xu, Wenyue Hua +3

Generative recommendation based on Large Language Models (LLMs) have transformed the traditional ranking-based recommendation style into a text-to-text generation paradigm. However…

cs.OS2024★ 9 cited

AIOS: LLM Agent Operating System

Kai Mei, Xi Zhu, Wujiang Xu +7

LLM-based intelligent agents face significant deployment challenges, particularly related to resource management. Allowing unrestricted access to LLM or tool resources can lead to…

cs.IR2024★ 1 cited

PAP-REC: Personalized Automatic Prompt for Recommendation Language Model

Zelong Li, Jianchao Ji, Yingqiang Ge +2

Recently emerged prompt-based Recommendation Language Models (RLM) can solve multiple recommendation tasks uniformly. The RLMs make full use of the inherited knowledge learned from…

cs.OS2023★ 2 cited

LLM as OS, Agents as Apps: Envisioning AIOS, Agents and the AIOS-Agent Ecosystem

Yingqiang Ge, Yujie Ren, Wenyue Hua +3

This paper envisions a revolutionary AIOS-Agent ecosystem, where Large Language Model (LLM) serves as the (Artificial) Intelligent Operating System (IOS, or AIOS)--an operating sys…

cs.AI2023★ 13 cited

War and Peace (WarAgent): Large Language Model-based Multi-Agent Simulation of World Wars

Wenyue Hua, Lizhou Fan, Lingyao Li +5

Can we avoid wars at the crossroads of history? This question has been pursued by individuals, scholars, policymakers, and organizations throughout human history. In this research,…

cs.IR2023

User-Controllable Recommendation via Counterfactual Retrospective and Prospective Explanations

Juntao Tan, Yingqiang Ge, Yan Zhu +4

Modern recommender systems utilize users' historical behaviors to generate personalized recommendations. However, these systems often lack user controllability, leading to diminish…

cs.IR2023★ 6 cited

GenRec: Large Language Model for Generative Recommendation

Jianchao Ji, Zelong Li, Shuyuan Xu +4

In recent years, large language models (LLM) have emerged as powerful tools for diverse natural language processing tasks. However, their potential for recommender systems under th…

cs.IR2023★ 20 cited

Counterfactual Collaborative Reasoning

Jianchao Ji, Zelong Li, Shuyuan Xu +5

Causal reasoning and logical reasoning are two important types of reasoning abilities for human intelligence. However, their relationship has not been extensively explored under ma…

cs.IR2023★ 3 cited

Automated Data Denoising for Recommendation

Yingqiang Ge, Mostafa Rahmani, Athirai Irissappane +3

In real-world scenarios, most platforms collect both large-scale, naturally noisy implicit feedback and small-scale yet highly relevant explicit feedback. Due to the issue of data…

cs.IR2023★ 7 cited

UP5: Unbiased Foundation Model for Fairness-aware Recommendation

Wenyue Hua, Yingqiang Ge, Shuyuan Xu +2

Recent advances in Foundation Models such as Large Language Models (LLMs) have propelled them to the forefront of Recommender Systems (RS). Despite their utility, there is a growin…

cs.IR2023★ 58 cited

How to Index Item IDs for Recommendation Foundation Models

Wenyue Hua, Shuyuan Xu, Yingqiang Ge +1

Recommendation foundation model utilizes large language models (LLM) for recommendation by converting recommendation tasks into natural language tasks. It enables generative recomm…