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Robotic manipulation with Vision-Language-Action models requires efficient inference over long-horizon multi-modal context, where attention to dense visual tokens dominates computational cost. Existing methods optimize inference speed by…

Robotics · Computer Science 2025-09-29 Xiaohuan Pei , Yuxing Chen , Siyu Xu , Yunke Wang , Yuheng Shi , Chang Xu

Achieving compositional alignment between textual descriptions and generated images - covering objects, attributes, and spatial relationships - remains a core challenge for modern text-to-image (T2I) models. Although diffusion-based…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Hossein Shahabadi , Niki Sepasian , Arash Marioriyad , Ali Sharifi-Zarchi , Mahdieh Soleymani Baghshah

Text-to-3D with diffusion models has achieved remarkable progress in recent years. However, existing methods either rely on score distillation-based optimization which suffer from slow inference, low diversity and Janus problems, or are…

Computer Vision and Pattern Recognition · Computer Science 2023-11-27 Jiahao Li , Hao Tan , Kai Zhang , Zexiang Xu , Fujun Luan , Yinghao Xu , Yicong Hong , Kalyan Sunkavalli , Greg Shakhnarovich , Sai Bi

The usage of deep generative models for image compression has led to impressive performance gains over classical codecs while neural video compression is still in its infancy. Here, we propose an end-to-end, deep generative modeling…

Computer Vision and Pattern Recognition · Computer Science 2019-11-05 Jun Han , Salvator Lombardo , Christopher Schroers , Stephan Mandt

Long-context video understanding and generation pose a significant computational challenge for Transformer-based video models due to the quadratic complexity of self-attention. While existing sparse attention methods employ coarse-grained…

Computer Vision and Pattern Recognition · Computer Science 2026-04-01 Anmin Liu , Ruixuan Yang , Huiqiang Jiang , Bin Lin , Minmin Sun , Yong Li , Chen Zhang , Tao Xie

Large Vision-Language Models (LVLMs) incur high computational costs due to significant redundancy in their visual tokens. To effectively reduce this cost, researchers have proposed various visual token pruning methods. However, existing…

Computer Vision and Pattern Recognition · Computer Science 2026-01-27 Wen Luo , Peng Chen , Xiaotao Huang , LiQun Huang

Vision-Language-Action (VLA) models, particularly diffusion-based architectures, demonstrate transformative potential for embodied intelligence but are severely hampered by high computational and memory demands stemming from extensive…

Computer Vision and Pattern Recognition · Computer Science 2025-06-13 Yantai Yang , Yuhao Wang , Zichen Wen , Luo Zhongwei , Chang Zou , Zhipeng Zhang , Chuan Wen , Linfeng Zhang

Vision-language models (VLMs) have achieved impressive performance on multimodal reasoning tasks such as visual question answering, image captioning and so on, but their inference cost remains a significant challenge due to the large number…

Computer Vision and Pattern Recognition · Computer Science 2026-01-06 Weichen Zhang , Zhui Zhu , Ningbo Li , Shilong Tao , Kebin Liu , Yunhao Liu

This paper studies multi-horizon Granger causality using high-dimensional local projections in sparse Vector Autoregressive (VAR) systems. Since local projection coefficients are nonlinear transformations of the underlying VAR parameters,…

Econometrics · Economics 2026-02-25 Eugene Dettaa , Endong Wang

Holistic understanding and reasoning in 3D scenes are crucial for the success of autonomous driving systems. The evolution of 3D semantic occupancy prediction as a pretraining task for autonomous driving and robotic applications captures…

Computer Vision and Pattern Recognition · Computer Science 2025-02-18 Sathira Silva , Savindu Bhashitha Wannigama , Gihan Jayatilaka , Muhammad Haris Khan , Roshan Ragel

Feed-forward 3D reconstruction models based on Vision Transformers can directly estimate scene geometry and camera poses from a small set of input images, but scaling them to video inputs with hundreds or thousands of frames remains…

Computer Vision and Pattern Recognition · Computer Science 2026-05-20 Zecheng Tang , Jiaye Fu , Qiankun Gao , Haijie Li , Yanmin Wu , Jiaqi Zhang , Siwei Ma , Jian Zhang

Parameter-efficient fine-tuning (PEFT) has emerged as a popular solution for adapting pre-trained Vision Transformer (ViT) models to downstream applications by updating only a small subset of parameters. While current PEFT methods have…

Computer Vision and Pattern Recognition · Computer Science 2025-12-19 Ting Liu , Xuyang Liu , Liangtao Shi , Zunnan Xu , Yue Hu , Siteng Huang , Yi Xin , Bineng Zhong , Donglin Wang

Visual reasoning models (VRMs) have recently shown strong cross-modal reasoning capabilities by integrating visual perception with language reasoning. However, they often suffer from overthinking, producing unnecessarily long reasoning…

Computer Vision and Pattern Recognition · Computer Science 2026-04-17 Yixu Huang , Tinghui Zhu , Muhao Chen

The Vector AutoRegressive (VAR) model is fundamental to the study of multivariate time series. Although VAR models are intensively investigated by many researchers, practitioners often show more interest in analyzing VARX models that…

Machine Learning · Statistics 2017-11-13 Ines Wilms , Sumanta Basu , Jacob Bien , David S. Matteson

Vector autoregressive (VAR) models are popularly adopted for modelling high-dimensional time series, and their piecewise extensions allow for structural changes in the data. In VAR modelling, the number of parameters grow quadratically with…

Methodology · Statistics 2023-01-23 Haeran Cho , Hyeyoung Maeng , Idris A. Eckley , Paul Fearnhead

Recent advances on Multi-modal Large Language Models have demonstrated that high-resolution image input is crucial for model capabilities, especially for fine-grained tasks. However, high-resolution images lead to a quadratic increase in…

Computer Vision and Pattern Recognition · Computer Science 2024-11-22 Yuke Zhu , Chi Xie , Shuang Liang , Bo Zheng , Sheng Guo

Recent advancements in Vision-Language Models (VLMs) enable large language models (LLMs) to process high-resolution images, significantly improving real-world multimodal understanding. However, this capability introduces a large number of…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Yuna Lee , Kyoungho Min , Yulhwa Kim

Text-Video Retrieval (TVR) aims to align relevant video content with natural language queries. To date, most state-of-the-art TVR methods learn image-to-video transfer learning based on large-scale pre-trained visionlanguage models (e.g.,…

Computer Vision and Pattern Recognition · Computer Science 2024-05-31 Meng Cao , Haoran Tang , Jinfa Huang , Peng Jin , Can Zhang , Ruyang Liu , Long Chen , Xiaodan Liang , Li Yuan , Ge Li

Vision-Language Models (VLMs) have achieved remarkable success in visual question answering tasks, but their reliance on large numbers of visual tokens introduces significant computational overhead. While existing efficient VLM approaches…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Zichuan Lin , Yicheng Liu , Yang Yang , Lvfang Tao , Deheng Ye

We study the problem of detecting and locating change points in high-dimensional Vector Autoregressive (VAR) models, whose transition matrices exhibit low rank plus sparse structure. We first address the problem of detecting a single change…

Methodology · Statistics 2021-10-01 Peiliang Bai , Abolfazl Safikhani , George Michailidis