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The quadratic computational cost of processing vision tokens in Multimodal Large Language Models (MLLMs) hinders their widespread adoption. While progressive vision token pruning offers a promising solution, current methods misinterpret…

Computer Vision and Pattern Recognition · Computer Science 2026-03-02 Hao Wu , Yingqi Fan , Jinyang Dai , Junlong Tong , Yunpu Ma , Xiaoyu Shen

Video large language models (VLLMs) have significantly advanced recently in processing complex video content, yet their inference efficiency remains constrained because of the high computational cost stemming from the thousands of visual…

Computer Vision and Pattern Recognition · Computer Science 2025-03-31 Keda Tao , Can Qin , Haoxuan You , Yang Sui , Huan Wang

KV cache pruning has emerged as a promising technique for reducing memory and computation costs in long-context auto-regressive generation. Existing methods for vision-language models (VLMs) typically rely on self-attention scores from…

Computer Vision and Pattern Recognition · Computer Science 2024-12-09 Xiaohuan Pei , Tao Huang , Chang Xu

Are low-attention visual tokens truly redundant in vision-language reasoning? Existing pruning methods often assume so, ranking visual tokens by shallow text-to-image attention and discarding low-scoring patches to accelerate LVLM…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Jie Ma , Yihang Liu , Zhike Qiu , Jiayi Ji , Xiaoshuai Sun

Private Transformer inference using cryptographic protocols offers promising solutions for privacy-preserving machine learning; however, it still faces significant runtime overhead (efficiency issues) and challenges in handling long-token…

Machine Learning · Computer Science 2025-03-07 Yancheng Zhang , Jiaqi Xue , Mengxin Zheng , Mimi Xie , Mingzhe Zhang , Lei Jiang , Qian Lou

In the present work we present Training Noise Token (TNT) Pruning for vision transformers. Our method relaxes the discrete token dropping condition to continuous additive noise, providing smooth optimization in training, while retaining…

Computer Vision and Pattern Recognition · Computer Science 2025-03-17 Mingxing Rao , Bohan Jiang , Daniel Moyer

Recently, reducing redundant visual tokens in vision-language models (VLMs) to accelerate VLM inference has emerged as a hot topic. However, most existing methods rely on heuristics constructed based on inter-visual-token similarity or…

Computer Vision and Pattern Recognition · Computer Science 2026-05-15 Haokui Zhang , Congyang Ou , Dawei Yan , Peng Wang , Qingsen Yan , Yu Zhang , Ying Li , Rong Xiao

In this work, we present FastAV, the first token pruning framework tailored for audio-visual large language models (AV-LLMs). While token pruning has been actively explored in standard large language models (LLMs) and vision-language models…

Machine Learning · Computer Science 2026-01-21 Chaeyoung Jung , Youngjoon Jang , Seungwoo Lee , Joon Son Chung

Optical Character Recognition (OCR) systems have been widely used in various of application scenarios. Designing an OCR system is still a challenging task. In previous work, we proposed a practical ultra lightweight OCR system (PP-OCR) to…

Computer Vision and Pattern Recognition · Computer Science 2021-10-13 Yuning Du , Chenxia Li , Ruoyu Guo , Cheng Cui , Weiwei Liu , Jun Zhou , Bin Lu , Yehua Yang , Qiwen Liu , Xiaoguang Hu , Dianhai Yu , Yanjun Ma

Self-supervised speech representation learning (SSL) has shown to be effective in various downstream tasks, but SSL models are usually large and slow. Model compression techniques such as pruning aim to reduce the model size and computation…

Computation and Language · Computer Science 2023-03-01 Yifan Peng , Kwangyoun Kim , Felix Wu , Prashant Sridhar , Shinji Watanabe

Pruning is an effective method for compressing Large Language Models, but finding an optimal, non-uniform layer-wise sparsity allocation remains a key challenge. While heuristic methods are fast but yield suboptimal performance, more…

Machine Learning · Computer Science 2025-11-25 Xin Yuan , Siqi Li , Jiateng Wei , Chengrui Zhu , Yanming Wu , Qingpeng Li , Jiajun Lv , Xiaoke Lan , Jun Chen , Yong Liu

Vision Transformers (ViTs) achieve state-of-the-art performance but suffer from the $O(N^2)$ complexity of self-attention, making inference costly for high-resolution inputs. To address this bottleneck, token pruning has emerged as a…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 Wei-Yuan Su , Ruijie Zhang , Zheng Zhang

Video Large Language Models (Video LLMs) incur high inference latency due to a large number of visual tokens provided to LLMs. To address this, training-free visual token pruning has emerged as a solution to reduce computational costs;…

Machine Learning · Computer Science 2026-04-24 Kibum Kim , Jiwan Kim , Kyle Min , Yueqi Wang , Jinyoung Moon , Julian McAuley , Chanyoung Park

Despite their powerful capabilities, Multimodal Large Language Models (MLLMs) suffer from considerable computational overhead due to their reliance on massive visual tokens. Recent studies have explored token pruning to alleviate this…

Computer Vision and Pattern Recognition · Computer Science 2025-10-13 Xin Zou , Di Lu , Yizhou Wang , Yibo Yan , Yuanhuiyi Lyu , Xu Zheng , Linfeng Zhang , Xuming Hu

Token pruning has emerged as a mainstream approach for developing efficient Video Large Language Models (Video LLMs). This work revisits and advances the two predominant token-pruning paradigms: attention-based selection and…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 Shukang Yin , Sirui Zhao , Hanchao Wang , Baozhi Jia , Xianquan Wang , Chaoyou Fu , Enhong Chen

Vision-Language Models (VLMs) face a bottleneck of prohibitive computational costs arising from massive visual token sequences during inference. Existing vision token reduction methods alleviate this burden, but they unintentionally…

Computer Vision and Pattern Recognition · Computer Science 2026-05-21 Yulin Zhao , Yun Wang , Dehua Zheng , Borui jiang , Zheng Zhang

Multimodal Large Language Models (MLLMs) suffer from substantial computational overhead due to the high redundancy in visual token sequences. Existing approaches typically address this issue using single-layer Vision Transformer (ViT)…

Computer Vision and Pattern Recognition · Computer Science 2026-04-15 Yunkai Dang , Yizhu Jiang , Yifan Jiang , Qi Fan , Yinghuan Shi , Wenbin Li , Yang Gao

Omnimodal large language models (OmniLLMs) have recently gained increasing attention for unified audio-video understanding. However, processing long multimodal token sequences introduces substantial computational overhead, making efficient…

Computer Vision and Pattern Recognition · Computer Science 2026-05-19 Morunliu Yang , Ruotao Xu , Le Li , Yue Wang , Jianxin Zhang , Juntao Li , Yihang Lou , Siwei Feng , Peifeng Li

Token-based video representation has emerged as a promising approach for enabling large language models (LLMs) to interpret video content. However, existing token reduction techniques, such as pruning and merging, often disrupt essential…

Computer Vision and Pattern Recognition · Computer Science 2025-09-30 Haichao Zhang , Yun Fu

Multimodal large language models (MLLMs) excel at high-level reasoning yet fail on OCR tasks where fine-grained visual details are compromised or misaligned. We identify an overlooked optimization issue in multi-layer feature fusion. Skip…

Computer Vision and Pattern Recognition · Computer Science 2026-05-27 Ziye Yuan , Ruchang Yao , Chengxin Zheng , Yusheng Zhao , Daxiang Dong , Ming Zhang