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Time series modeling holds significant importance in many real-world applications and has been extensively studied. While pre-trained foundation models have made impressive strides in the fields of natural language processing (NLP) and…

Computation and Language · Computer Science 2025-02-20 Juyuan Zhang , Wei Zhu , Jiechao Gao

Large Vision-Language-Action (VLA) models, leveraging powerful pre trained Vision-Language Models (VLMs) backends, have shown promise in robotic control due to their impressive generalization ability. However, the success comes at a cost.…

Computer Vision and Pattern Recognition · Computer Science 2025-02-04 Jianke Zhang , Yanjiang Guo , Xiaoyu Chen , Yen-Jen Wang , Yucheng Hu , Chengming Shi , Jianyu Chen

High-resolution inputs enable Large Vision-Language Models (LVLMs) to discern finer visual details, enhancing their comprehension capabilities. To reduce the training and computation costs caused by high-resolution input, one promising…

Computer Vision and Pattern Recognition · Computer Science 2026-01-13 Runhui Huang , Xinpeng Ding , Chunwei Wang , Jianhua Han , Yulong Liu , Hengshuang Zhao , Hang Xu , Lu Hou , Wei Zhang , Xiaodan Liang

Unsupervised domain adaptation (UDA) of time series aims to teach models to identify consistent patterns across various temporal scenarios, disregarding domain-specific differences, which can maintain their predictive accuracy and…

Machine Learning · Computer Science 2024-09-19 Huanyu Zhang , Yi-Fan Zhang , Zhang Zhang , Qingsong Wen , Liang Wang

Multivariate time series alignment is critical for ensuring coherent analysis across variables, but missing values and timestamp inconsistencies make this task highly challenging. Existing approaches often rely on prior imputation, which…

Databases · Computer Science 2025-12-23 Ding Jia , Jingyu Zhu , Yu Sun , Aoqian Zhang , Shaoxu Song , Haiwei Zhang , Xiaojie Yuan

Recently, remote sensing image captioning has gained significant attention in the remote sensing community. Due to the significant differences in spatial resolution of remote sensing images, existing methods in this field have predominantly…

Computer Vision and Pattern Recognition · Computer Science 2023-12-05 Cong Yang , Zuchao Li , Lefei Zhang

Accurate and efficient tracking of surgical instruments is fundamental for Robot-Assisted Minimally Invasive Surgery. Although vision-based robot pose estimation has enabled markerless calibration without tedious physical setups, reliable…

Robotics · Computer Science 2026-03-16 Hanyang Hu , Zekai Liang , Florian Richter , Michael C. Yip

Event cameras generate asynchronous signals in response to pixel-level brightness changes, offering a sensing paradigm with theoretically microsecond-scale latency that can significantly enhance the performance of multi-sensor systems.…

Robotics · Computer Science 2025-08-19 Jiayao Mai , Xiuyuan Lu , Kuan Dai , Shaojie Shen , Yi Zhou

The pursuit of spatial intelligence fundamentally relies on access to large-scale, fine-grained 3D data. However, existing approaches predominantly construct spatial understanding benchmarks by generating question-answer (QA) pairs from a…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Yuanyuan Gao , Hao Li , Yifei Liu , Xinhao Ji , Yuning Gong , Yuanjun Liao , Fangfu Liu , Manyuan Zhang , Yuchen Yang , Dan Xu , Xue Yang , Huaxi Huang , Hongjie Zhang , Ziwei Liu , Xiao Sun , Dingwen Zhang , Zhihang Zhong

Human motion simulation (HMS) supports cost-effective evaluation of worker behavior, safety, and productivity in industrial tasks. However, existing methods often suffer from low motion fidelity. This study introduces Generative-AI-Enabled…

Artificial Intelligence · Computer Science 2025-07-21 Hari Iyer , Neel Macwan , Atharva Jitendra Hude , Heejin Jeong , Shenghan Guo

Inertial Measurement Unit (IMU)-based Human Activity Recognition (HAR) aims to interpret and classify user behaviors from temporal motion signals. Recently, deep learning frameworks have advanced this task by learning and extracting…

Signal Processing · Electrical Eng. & Systems 2026-05-12 Peng Liao , Shangsong Liang , Lin Chen , Peijia Zheng

Automated medical report generation for 3D PET/CT imaging is fundamentally challenged by the high-dimensional nature of volumetric data and a critical scarcity of annotated datasets, particularly for low-resource languages. Current…

Processing and analyzing time series data\-sets have become a central issue in many domains requiring data management systems to support time series as a native data type. A crucial prerequisite of these systems is time series matching,…

Databases · Computer Science 2021-10-12 Lars Kegel , Claudio Hartmann , Maik Thiele , Wolfgang Lehner

Text-video retrieval aims to find the most relevant cross-modal samples for a given query. Recent methods focus on modeling the whole spatial-temporal relations. However, since video clips contain more diverse content than captions, the…

Computer Vision and Pattern Recognition · Computer Science 2024-04-23 Han Fang , Xianghao Zang , Chao Ban , Zerun Feng , Lanxiang Zhou , Zhongjiang He , Yongxiang Li , Hao Sun

Scene text image super-resolution (STISR) is an important pre-processing technique for text recognition from low-resolution scene images. Nowadays, various methods have been proposed to extract text-specific information from high-resolution…

Computer Vision and Pattern Recognition · Computer Science 2023-08-01 Minyi Zhao , Yi Xu , Bingjia Li , Jie Wang , Jihong Guan , Shuigeng Zhou

Robust topology optimization (RTO) improves the robustness of designs with respect to random sources in real-world structures, yet an accurate sensitivity analysis requires the solution of many systems of equations at each optimization…

Computational Engineering, Finance, and Science · Computer Science 2020-09-01 Weichen Li , Xiaojia Shelly Zhang

Vision-Language-Action (VLA) models are a promising paradigm for generalist robotic manipulation by grounding high-level semantic instructions into executable physical actions. However, prevailing approaches typically adopt a monolithic…

Robotics · Computer Science 2026-04-29 Yifei Wei , Linqing Zhong , Yi Liu , Yuxiang Lu , Xindong He , Maoqing Yao , Guanghui Ren

Current Vision-Language-Action (VLA) models primarily focus on mapping 2D observations to actions, but exhibit notable limitations in spatiotemporal perception and reasoning: 1) spatial representations often rely on additional sensors,…

Robotics · Computer Science 2026-05-07 Wei Li , Jizhihui Liu , Li Yixing , Junwen Tong , Rui Shao , Liqiang Nie

Fine-tuning text-to-image diffusion models with human feedback is an effective method for aligning model behavior with human intentions. However, this alignment process often suffers from slow convergence due to the large size and noise…

Machine Learning · Computer Science 2025-04-03 Yongjin Yang , Sihyeon Kim , Hojung Jung , Sangmin Bae , SangMook Kim , Se-Young Yun , Kimin Lee

Recent advances in visual 6D pose estimation of objects using deep neural networks have enabled novel ways of vision-based control for heavy-duty robotic applications. In this study, we present a pipeline for the precise tool positioning of…

Robotics · Computer Science 2025-02-27 Petri Mäkinen , Pauli Mustalahti , Tuomo Kivelä , Jouni Mattila