collaborators

5 papers

cs.AI2026

PATH: Next-Interval Prediction via Autoregressive Tree Hierarchy on Tabular Data

Pengxiang Cai, Wanchen Lian, Chenyang Liu +4

Interval prediction aims to achieve a target coverage level while producing intervals that are as short as possible. Many conformal regression pipelines first predict an uncertaint…

cs.AI2026

JustLLMGRPO: Radiographic Control for Chest X-Ray Generation

Pengxiang Cai, Xiaohan Li, Anglin Liu +3

Text-conditioned chest X-ray generation aims to synthesize realistic radiographs that faithfully depict specified findings. Existing work has primarily improved quality by updating…

cs.LG2026

Curriculum Reinforcement Learning Can Incentivize Reasoning Capacity in LLMs Beyond the Base Model

Pengxiang Cai, Tianchen Fang, Xiaohan Li +3

Reinforcement learning with verifiable rewards (RLVR) is widely viewed as a promising path toward continuously improving large language models. Recent works, however, suggest that…

cs.CV2026

MS-CustomNet: Controllable Multi-Subject Customization with Hierarchical Relational Semantics

Pengxiang Cai, Mengyang Li

Diffusion-based text-to-image generation has advanced significantly, yet customizing scenes with multiple distinct subjects while maintaining fine-grained control over their intera…

cs.LG2025

ChemBOMAS: Accelerated BO in Chemistry with LLM-Enhanced Multi-Agent System

Dong Han, Zhehong Ai, Pengxiang Cai +16

Bayesian optimization (BO) is a powerful tool for scientific discovery in chemistry, yet its efficiency is often hampered by the sparse experimental data and vast search space. Her…