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Zhiwang Zhang

5 accepted papers

2026

CMedBench: A Comprehensive Benchmark for Efficient Medical Large Language Models

AAAI 2026technical

Large Language Models (LLMs) hold significant potential for enhancing healthcare applications, yet their deployment is hindered by high computational and memory demands. Model compression techniques offer solutions to reduce these demands, but their impact on medical LLMs remains underexplored. In t

Cited by 0SourcePDFScholar
2025

Overcoming Heterogeneous Data in Federated Medical Vision-Language Pre-training: A Triple-Embedding Model Selector Approach

AAAI 2025technical

The scarcity data of medical field brings the collaborative training in medical vision-language pre-training (VLP) cross different clients. Therefore, the collaborative training in medical VLP faces two challenges: First, the medical data requires privacy, thus can not directly shared across differe…

2024

IC-FPS: Instance-Centroid Faster Point Sampling Framework for 3D Point-based Object Detection

IROS 2024

3D object detection is one of the most important tasks in autonomous driving and robotics. Our research focuses on tackling low efficiency issue of point-based methods, and we propose a novel Instance-Centroid Faster Point Sampling (IC-FPS) framework. We design a Neighboring Feature Diffusion Module

Cited by 1SourceScholar
2024

Langevin Policy for Safe Reinforcement Learning

ICML 2024poster

Optimization and sampling based algorithms are two branches of methods in machine learning, while existing safe reinforcement learning (RL) algorithms are mainly based on optimization, it is still unclear whether sampling based methods can lead to desirable performance with safe policy. This paper f…

Cited by 1SourcePDFScholar
2023

GAM: Gradient Attention Module of Optimization for Point Clouds Analysis

AAAI 2023technical

In the point cloud analysis task, the existing local feature aggregation descriptors (LFAD) do not fully utilize the neighborhood information of center points. Previous methods only use the distance information to constrain the local aggregation process, which is easy to be affected by abnormal poin…