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Jinlong Liu

9 accepted papers

2026

Alleviating Sparse Rewards by Modeling Step-Wise and Long-Term Sampling Effects in Flow-Based GRPO

ICML 2026poster

Deploying GRPO on Flow Matching models has proven effective for text-to-image generation. However, existing paradigms typically propagate an outcome-based reward to all preceding denoising steps without distinguishing the local effect of each step. Moreover, current group-wise ranking mainly compare…

Cited by 0SourceScholar
2026

FUSE: Fine-Grained and Semantic-Aware Learning for Unified Image Understanding and Generation

AAAI 2026technical

Recent unified models have demonstrated that the reasoning capacity of Multimodal Large Language Models (MLLMs) can be leveraged to facilitate diffusion-based image generation with impressive flexibility and performance. However, approaches that rely heavily on MLLMs for high-level semantic encoding

Cited by 0SourcePDFScholar
2025

Boosting MLLM Reasoning with Text-Debiased Hint-GRPO

ICCV 2025poster

MLLM reasoning has drawn widespread research for its excellent problem-solving capability. Current reasoning methods fall into two types: PRM, which supervises the intermediate reasoning steps, and ORM, which supervises the final results. Recently, DeepSeek-R1 has challenged the traditional view tha…

2025

GraphVCM: Virtual Center Mixing with Distance-Aware Regulation for Class Imbalanced Node Classification

ICASSP 2025accepted

Class imbalance is a prevalent issue in real-world graph-structure data, such as social and citation networks, posing significant challenges for Graph Neural Networks (GNNs). Existing solutions often focus on balancing class distributions via oversampling techniques, which may lead to overfitting an…

Cited by 0SourceScholar
2025

PatchDPO: Patch-level DPO for Finetuning-free Personalized Image Generation

CVPR 2025poster

Finetuning-free personalized image generation can synthesize customized images without test-time finetuning, attracting wide research interest owing to its high efficiency. Current finetuning-free methods simply adopt a single training stage with a simple image reconstruction task, and they typicall…

2025

Resolving Multi-Condition Confusion for Finetuning-Free Personalized Image Generation

AAAI 2025technical

Personalized text-to-image generation methods can generate customized images based on the reference images, which have garnered wide research interest. Recent methods propose a finetuning-free approach with a decoupled cross-attention mechanism to generate personalized images requiring no test-time…

2023

LDTSF: A Label-Decoupling Teacher-Student Framework for Semi-Supervised Echocardiography Segmentation

ICASSP 2023accepted

The accurate segmentation of the right and left ventricles with limited labeled data is a challenging task in echocardiographic data analysis. To fully leverage the easily accessible unlabeled data, we propose a label-decoupling teacher-student framework (LDTSF) based on semi-supervised learning. Sp…

Cited by 0SourceScholar
2020

Understanding Why Neural Networks Generalize Well Through GSNR of Parameters

ICLR 2020spotlight

As deep neural networks (DNNs) achieve tremendous success across many application domains, researchers tried to explore in many aspects on why they generalize well. In this paper, we provide a novel perspective on these issues using the gradient signal to noise ratio (GSNR) of parameters during trai…

Cited by 61SourceScholar