collaborators

6 papers

cs.LG2026

OctoTools: An Agentic Framework with Extensible Tools for Complex Reasoning

Pan Lu, Bowen Chen, Sheng Liu +3

Solving complex reasoning tasks may involve visual understanding, domain knowledge retrieval, numerical calculation, and multi-step reasoning. Existing methods augment large langua…

cs.CV2026

Suppressing Prior-Comparison Hallucinations in Radiology Report Generation via Semantically Decoupled Latent Steering

Ao Li, Rui Liu, Mingjie Li +6

Automated radiology report generation using vision-language models (VLMs) is limited by the risk of prior-comparison hallucination, where the model generates historical findings un…

cs.AI2025

In-the-Flow Agentic System Optimization for Effective Planning and Tool Use

Zhuofeng Li, Haoxiang Zhang, Seungju Han +6

Outcome-driven reinforcement learning has advanced reasoning in large language models (LLMs), but prevailing tool-augmented approaches train a single, monolithic policy that interl…

cs.LG2025

Fractional Reasoning via Latent Steering Vectors Improves Inference Time Compute

Sheng Liu, Tianlang Chen, Pan Lu +4

Test-time compute has emerged as a powerful paradigm for improving the performance of large language models (LLMs), where generating multiple outputs or refining individual chains…

cs.CV2025

MedTrinity-25M: A Large-scale Multimodal Dataset with Multigranular Annotations for Medicine

Yunfei Xie, Ce Zhou, Lang Gao +8

This paper introduces MedTrinity-25M, a comprehensive, large-scale multimodal dataset for medicine, covering over 25 million images across 10 modalities with multigranular annotati…

physics.med-ph2025

Automated radiotherapy treatment planning guided by GPT-4Vision

Sheng Liu, Oscar Pastor-Serrano, Yizheng Chen +10

Objective: Radiotherapy treatment planning is a time-consuming and potentially subjective process that requires the iterative adjustment of model parameters to balance multiple con…