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Iterative pruning is one of the most effective compression methods for pre-trained language models. We discovered that finding the optimal pruning decision is an equality-constrained 0-1 Integer Linear Programming problem. The solution to…

Computation and Language · Computer Science 2023-05-23 Siyu Ren , Kenny Q. Zhu

While Large Vision Language Models (LVLMs) demonstrate impressive capabilities, their substantial computational and memory requirements pose deployment challenges on resource-constrained edge devices. Current parameter reduction techniques…

Computation and Language · Computer Science 2026-04-28 Yiran Huang , Lukas Thede , Massimiliano Mancini , Wenjia Xu , Zeynep Akata

Visual token reduction is critical for accelerating Vision-Language Models (VLMs), yet most existing approaches rely on a fixed budget shared across all inputs, overlooking the substantial variation in image information density. We propose…

Computer Vision and Pattern Recognition · Computer Science 2026-03-09 Jialuo He , Huangxun Chen

Current Video Large Language Models (VideoLLMs) suffer from quadratic computational complexity and key-value cache scaling, due to their reliance on processing excessive redundant visual tokens. To address this problem, we propose SharpV, a…

Computer Vision and Pattern Recognition · Computer Science 2025-12-05 Jialong Qin , Xin Zou , Di Lu , Yibo Yan , Xuming Hu

In this paper, we introduce PruneVid, a visual token pruning method designed to enhance the efficiency of multi-modal video understanding. Large Language Models (LLMs) have shown promising performance in video tasks due to their extended…

Computer Vision and Pattern Recognition · Computer Science 2024-12-23 Xiaohu Huang , Hao Zhou , Kai Han

Pruning has emerged as a promising direction for accelerating large language model (LLM) inference, yet existing approaches often suffer from instability because they rely on offline calibration data that may not generalize across inputs.…

Computation and Language · Computer Science 2025-12-09 Jungmin Lee , Gwangeun Byeon , Yulhwa Kim , Seokin Hong

Visual tokens dominate inference cost in vision-language models (VLMs), yet many carry redundant information. Existing pruning methods alleviate this but typically rely on attention magnitude or similarity scores. We reformulate visual…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Landi He , Xiaoyu Yang , Lijian Xu

Pruning is a typical acceleration technique for compute-bound models by removing computation on unimportant values. Recently, it has been applied to accelerate Vision-Language-Action (VLA) model inference. However, existing acceleration…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Hanzhen Wang , Jiaming Xu , Yushun Xiang , Jiayi Pan , Yongkang Zhou , Yong-Lu Li , Guohao Dai

State-of-the-art large multi-modal models (LMMs) face challenges when processing high-resolution images, as these inputs are converted into enormous visual tokens, many of which are irrelevant to the downstream task. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2026-04-21 Xinyu Huang , Yuhao Dong , Weiwei Tian , Bo Li , Rui Feng , Ziwei Liu

Reinforcement Learning (RL) can directly enhance the reasoning capabilities of large language models without extensive reliance on Supervised Fine-Tuning (SFT). In this work, we revisit the traditional Policy Gradient (PG) mechanism and…

Machine Learning · Computer Science 2026-02-04 Xiangxiang Chu , Hailang Huang , Xiao Zhang , Fei Wei , Yong Wang

Grounded Conversation Generation (GCG) is an emerging vision-language task that requires models to generate natural language responses seamlessly intertwined with corresponding object segmentation masks. Recent models, such as GLaMM and…

Computer Vision and Pattern Recognition · Computer Science 2025-04-02 Bizhe Bai , Jianjian Cao , Yadan Luo , Tao Chen

Recent advances in large language models (LLMs) highlight the importance of post training techniques for improving reasoning and mathematical ability. Group Relative Policy Optimization (GRPO) has shown promise in this domain by combining…

Machine Learning · Computer Science 2026-03-20 Gabriele Carrino , Andrea Sassella , Nicolo Brunello , Federico Toschi , Mark James Carman

Reinforcement learning, including reinforcement learning with verifiable rewards (RLVR), has emerged as a powerful approach for LLM post-training. Central to these approaches is the design of the importance sampling (IS) ratio used in…

Machine Learning · Computer Science 2026-05-11 Yuheng Zhang , Chenlu Ye , Shuowei Jin , Changlong Yu , Wei Xiong , Saurabh Sahu , Nan Jiang

Multimodal Large Language Models (MLLMs) have shown remarkable versatility in understanding diverse multimodal data and tasks. However, these capabilities come with an increased model scale. While post-training pruning reduces model size in…

Computer Vision and Pattern Recognition · Computer Science 2025-05-20 Jaewoo Lee , Keyang Xuan , Chanakya Ekbote , Sandeep Polisetty , Yi R. Fung , Paul Pu Liang

Multimodal Large Language Models (MLLMs) excel in vision-language reasoning but often struggle with structured perception tasks requiring precise localization and robustness. We propose a reinforcement learning framework that augments Group…

Computer Vision and Pattern Recognition · Computer Science 2025-10-08 Xu Jia

We present LightVLA, a simple yet effective differentiable token pruning framework for vision-language-action (VLA) models. While VLA models have shown impressive capability in executing real-world robotic tasks, their deployment on…

Robotics · Computer Science 2025-09-23 Titong Jiang , Xuefeng Jiang , Yuan Ma , Xin Wen , Bailin Li , Kun Zhan , Peng Jia , Yahui Liu , Sheng Sun , Xianpeng Lang

Pruning provides a practical solution to reduce the resources required to run large language models (LLMs) to benefit from their effective capabilities as well as control their cost for training and inference. Research on LLM pruning often…

Computation and Language · Computer Science 2025-10-28 Yuanhe Tian , Junjie Liu , Xican Yang , Haishan Ye , Yan Song

Vision-Language Models (VLMs) have become central to autonomous driving systems, yet their deployment is severely bottlenecked by the massive computational overhead of multi-view camera and multi-frame video input. Existing token pruning…

Computer Vision and Pattern Recognition · Computer Science 2026-04-22 Lin Sha , Haiyun Guo , Tao Wang , Cong Zhang , Min Huang , Jinqiao Wang , Qinghai Miao

Reinforcement Learning with Verifiable Rewards (RLVR) has significantly advanced the reasoning capabilities of Large Language Models (LLMs). However, methods such as GRPO and DAPO suffer from substantial computational cost, since they rely…

Computation and Language · Computer Science 2026-03-27 Haobo Xu , Sirui Chen , Ruizhong Qiu , Yuchen Yan , Chen Luo , Monica Cheng , Jingrui He , Hanghang Tong

Layer pruning has emerged as a potent approach to remove redundant layers in the pre-trained network on the purpose of reducing network size and improve computational efficiency. However, existing layer pruning methods mostly overlook the…

Machine Learning · Computer Science 2025-11-17 Yuqi Li , Yao Lu , Junhao Dong , Zeyu Dong , Chuanguang Yang , Xin Yin , Yihao Chen , Jianping Gou , Yingli Tian , Tingwen Huang