activity
20232026
most citedBlack-Box Prompt Optimization: Aligning Large Language Models without Model Training

8 citations · 8 across the 5 of their papers we have counts for

collaborators

7 papers

cs.AI2026

Toward User-Centered Agentic Recommendation: When Does Platform Competition Benefit Users?

Kehan Zheng, Deyao Hong, Qian Li +3

Conventional recommender systems operate within platform-specific catalogs, limiting access to potentially valuable resources across platforms. We propose user-centered agentic rec…

cs.CL2026

AI Cosmos: An Agentic Infra for Situated Learning

AI Cosmos Team, Jinfeng Zhou, Yuxuan Chen +32

Large language models (LLMs) can improve task performance during learning, yet these gains do not necessarily reflect learners' ability to thereafter apply the knowledge and skills…

cs.AI2026

The User Asks, Platforms Compete: How Agentic Recommendation Markets Take Shape

Deyao Hong, Kehan Zheng, Qian Li +3

Online recommendation has traditionally taken place after a user enters a platform, which determines the candidate pool and the ranking shown to the user. LLM-based user agents ena…

cs.AI2026

You Live More Than Once: Towards Hierarchical Skill Meta-Evolving

Xujun Li, Kehan Zheng, Mingyuan Zhao +7

Test-time skill evolving is regarded as a new paradigm for enhancing deployed agentic systems. Existing works mainly focus on hard-coded skill evolving strategies or parametric lea…

cs.IR2026

Reasoning to Rank: An End-to-End Solution for Exploiting Large Language Models for Recommendation

Kehan Zheng, Deyao Hong, Qian Li +4

Recommender systems are tasked to infer users' evolving preferences and rank items aligned with their intents, which calls for in-depth reasoning beyond pattern-based scoring. Rece…

cs.AI2025

Beyond Nash Equilibrium: Bounded Rationality of LLMs and humans in Strategic Decision-making

Kehan Zheng, Jinfeng Zhou, Hongning Wang

Large language models are increasingly used in strategic decision-making settings, yet evidence shows that, like humans, they often deviate from full rationality. In this study, we…

cs.CL2023★ 8 cited

Black-Box Prompt Optimization: Aligning Large Language Models without Model Training

Jiale Cheng, Xiao Liu, Kehan Zheng +5

Large language models (LLMs) have shown impressive success in various applications. However, these models are often not well aligned with human intents, which calls for additional…