← Search

Haoxiang Sun

7 accepted papers

2026

Dr. Seg: Revisiting GRPO Training for Visual Large Language Models through Perception-Oriented Design

CVPR 2026

Following the success of Group Relative Policy Optimization (GRPO) in foundation LLMs, an increasing number of works have sought to adapt GRPO to Visual Large Language Models (VLLMs) for visual perception tasks (e.g., detection and segmentation). However, much of this line of research rests on a lon

Cited by 0SourcecodeScholar
2025

Enhancing Machine Translation with Self-Supervised Preference Data

ACL 2025long

Model alignment methods like Direct Preference Optimization and Contrastive Preference Optimization have enhanced machine translation performance by leveraging preference data to enable models to reject suboptimal outputs. During preference data construction, previous approaches primarily rely on hu…

2025

PlantPCC: Dual Sampling and Multi-level Geometry-aware Contrastive Regularization for Plant Point Cloud Completion

ICASSP 2025accepted

Plant point cloud completion is essential for tasks like segmentation and surface reconstruction in plant phenotyping. Unlike the relatively simpler Computer-Aided Design models found in datasets like ShapeNet, plant point clouds are characterized by their rich geometric shapes and intricate edge fe…

Cited by 0SourceScholar
2024

EverySync: An Open Hardware Time Synchronization Sensor Suite for Common Sensors in SLAM

IROS 2024poster

Multi-sensor fusion systems have been widely applied in various fields, including mobile robot, simultaneous localization and mapping (SLAM), and autonomous driving. For a tightly coupled multi-sensor fusion system, strict time synchronization between sensors will improve the accuracy of the system.…

Cited by 1SourceScholar
2024

LLMBox: A Comprehensive Library for Large Language Models

ACL 2024system demonstrations

To facilitate the research on large language models (LLMs), this paper presents a comprehensive and unified library, LLMBox, to ease the development, use, and evaluation of LLMs. This library is featured with three main merits: (1) a unified data interface that supports the flexible implementation o…

2024

Trans-Rotor: An Active Omnidirectional Aerial-Ground Vehicle With Differential Gear Joint Transformation Mechanism

IROS 2024poster

Aerial-ground vehicles have shown great potential in various fields due to their superior mobility and outstanding endurance. However, most of morphing aerial-ground vehicles consider little about controllability and traversability in ground mode. We present a novel aerial-ground vehicle called Tran…

Cited by 0SourceScholar