collaborators

7 papers

cs.AI2026

Evaluating the Hidden Costs of Personalization in Large Language Models

Yumeng Wang, Yuchen Wu, Cheng Qian +6

While Large language models (LLMs) incorporate user personalization signals to improve usability and helpfulness, they increasingly shift from providing balanced, informative respo…

cs.AI2026

BioInsight: Multi-Agent Orchestration for Interactive Biomedical Knowledge Discovery

Jieyi Wang, Bingxuan Li, Nanyi Jiang +9

Biomedical deep-research systems increasingly retrieve and synthesize scientific evidence, but their outputs typically collapse heterogeneous evidence into static text, making prov…

cs.CL2026

AdaPlanBench: Evaluating Adaptive Planning in Large Language Model Agents under World and User Constraints

Jiayu Liu, Cheng Qian, Zhenhailong Wang +10

Planning for real-world problems by language models often involves both world and user constraints, which may not be fully specified upfront and are progressively disclosed through…

cs.AI2026

PlanBench-XL: Evaluating Long-Horizon Planning of LLM Tool-Use Agents in Large-Scale Tool Ecosystems

Jiayu Liu, Qihan Lin, Cheng Qian +8

LLM agents increasingly operate in large tool ecosystems, where real-world tasks require discovering relevant tools, inferring implicit sub-goals, and adapting to dynamic environme…

cs.AI2026

Brick-Composer: Using MLLMs for Assembly with Diverse Bricks

Jiateng Liu, Bingxuan Li, Zhenhailong Wang +8

We dream of AI agents that can read arbitrary designs and construct real-world objects from reusable building blocks. As a first step toward this vision, we study whether multimoda…

cs.CL2025

Diversity-Enhanced Reasoning for Subjective Questions

Yumeng Wang, Zhiyuan Fan, Jiayu Liu +2

Large Reasoning Models (LRMs) with long chain-of-thought capabilities, optimized via reinforcement learning with verifiable rewards (RLVR), excel at objective reasoning tasks like…