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Junpeng Ma

7 accepted papers

2026

GIFT: Global Irreplaceability Frame Targeting for Efficient Video Understanding

CVPR 2026

Video Large Language Models (VLMs) have achieved remarkable success in video understanding, but the significant computational cost from processing dense frames severely limits their practical application. Existing methods alleviate this by selecting keyframes, but their greedy decision-making, combi

Cited by 0SourceScholar
2026

MMG-Vid: Maximizing Marginal Gains at Segment-level and Token-level for Efficient Video LLMs

AAAI 2026technical

Video Large Language Models (VLLMs) excel in video understanding, but their excessive visual tokens pose a significant computational challenge for real-world applications. Current methods aim to enhance inference efficiency by visual token pruning. However, they do not consider the dynamic character

Cited by 0SourcePDFScholar
2026

MacTok: Robust Continuous Tokenization for Image Generation

CVPR 2026

Continuous image tokenizers enable efficient visual generation, and those based on variational frameworks can learn smooth, structured latent representations through KL regularization. Yet this often leads to posterior collapse when using fewer tokens, where the encoder fails to encode informative f

Cited by 0SourceScholar
2026

SpatialReward: Verifiable Spatial Reward Modeling for Fine-Grained Spatial Consistency in Text-to-Image Generation

CVPR 2026

Recent advances in text-to-image (T2I) generation via reinforcement learning (RL) have benefited from reward models that assess semantic alignment and visual quality. However, most existing reward models pay limited attention to fine-grained spatial relationships, often producing images that appear

Cited by 0SourcecodeScholar
2025

SparseVLM: Visual Token Sparsification for Efficient Vision-Language Model Inference

ICML 2025poster

In vision-language models (VLMs), visual tokens usually consume a significant amount of computational overhead, despite their sparser information density compared to text tokens. To address this, most existing methods learn a network to prune redundant visual tokens and require additional training d…

2025

Video Compression Commander: Plug-and-Play Inference Acceleration for Video Large Language Models

EMNLP 2025

Video large language models (VideoLLM) excel at video understanding, but face efficiency challenges due to the quadratic complexity of abundant visual tokens. Our systematic analysis of token compression methods for VideoLLMs reveals two critical issues: (i) overlooking distinctive visual signals ac

2024

Cloud-Device Collaborative Learning for Multimodal Large Language Models

CVPR 2024poster

The burgeoning field of Multimodal Large Language Models (MLLMs) has exhibited remarkable performance in diverse tasks such as captioning commonsense reasoning and visual scene understanding. However the deployment of these large-scale MLLMs on client devices is hindered by their extensive model par…

Cited by 17SourcePDFScholar