← Search

Long Xing

4 accepted papers

2026

CapRL: Stimulating Dense Image Caption Capabilities via Reinforcement Learning

ICLR 2026poster

Image captioning is a fundamental task that bridges the visual and linguistic domains, playing a critical role in pre-training Large Vision-Language Models (LVLMs). Current state-of-the-art captioning models are typically trained with Supervised Fine-Tuning (SFT), a paradigm that relies on expensive…

Cited by 0Source ↗Scholar ↗
2026

ScaleCap: Scalable Image Captioning via Dual-Modality Debiasing

ICLR 2026poster

This paper presents ScaleCap, a scalable image captioning strategy that generates comprehensive and detailed image captions. The key challenges of high-quality image captioning lie in the inherent biases of LVLMs: multimodal bias resulting in imbalanced descriptive granularity, offering detailed acc…

Cited by 0Source ↗code ↗Scholar ↗
2026

Spatial-SSRL: Enhancing Spatial Understanding via Self-Supervised Reinforcement Learning

CVPR 2026

Spatial understanding remains a weakness of Large Vision-Language Models (LVLMs). Existing supervised fine-tuning (SFT) and recent reinforcement learning with verifiable rewards (RLVR) pipelines depend on costly supervision, specialized tools, or constrained environments that limit scale. We introdu

Cited by 0Source ↗code ↗Scholar ↗
2025

Conical Visual Concentration for Efficient Large Vision-Language Models

CVPR 2025poster

In large vision-language models (LVLMs), images serve as inputs that carry a wealth of information. As the idiom "A picture is worth a thousand words" implies, representing a single image in current LVLMs can require hundreds or even thousands of tokens. This results in significant computational cos…