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3D semantic scene understanding is essential for digital twins, autonomous driving, smart agriculture, and embodied perception, yet dense point-wise annotation for point clouds remains expensive and difficult to scale. Existing…

Computer Vision and Pattern Recognition · Computer Science 2026-05-14 Yijing Wang , Ruonan Li , Qilin Wang , Rongqiang Zhao , Jie Liu

Driven by the pressing demand for graph anomaly detection (GAD) in high-stakes domains, the generalist GAD paradigm, which trains a single detector transferable across new graphs, has recently gained growing attention. However, existing…

Machine Learning · Computer Science 2026-05-27 Yiming Xu , Zihan Chen , Zhen Peng , Song Wang , Bin Shi , Bo Dong , Chao Shen

Hashing has been widely used in approximate nearest neighbor search for its storage and computational efficiency. Deep supervised hashing methods are not widely used because of the lack of labeled data, especially when the domain is…

Computer Vision and Pattern Recognition · Computer Science 2021-05-14 Xiao Luo , Zeyu Ma , Daqing Wu , Huasong Zhong , Chong Chen , Jinwen Ma , Minghua Deng

Wireless signal recognition (WSR) is a crucial technique for intelligent communications and spectrum sharing in the next six-generation (6G) wireless communication networks. It can be utilized to enhance network performance and efficiency,…

Signal Processing · Electrical Eng. & Systems 2025-03-12 Hao Zhang , Fuhui Zhou , Hongyang Du , Qihui Wu , Chau Yuen

As 3D perception problems grow in popularity and the need for large-scale labeled datasets for LiDAR semantic segmentation increase, new methods arise that aim to reduce the necessity for dense annotations by employing weakly-supervised…

Computer Vision and Pattern Recognition · Computer Science 2023-11-28 Ozan Unal , Dengxin Dai , Lukas Hoyer , Yigit Baran Can , Luc Van Gool

Accurate and robust wireless localization is a key enabler for a wide range of mobile computing applications. Fingerprint-based localization using channel state information (CSI) has attracted significant attention due to its high accuracy…

Signal Processing · Electrical Eng. & Systems 2026-03-09 Haoyu Huang , Guangjin Pan , Kaixuan Huang , Shunqing Zhang , Yuhao Zhang , Musa Furkan Keskin , Zheng Xing , Henk Wymeersch

We address the problem of detecting speech directed to a device that does not contain a specific wake-word. Specifically, we focus on audio coming from a touch-based invocation. Mitigating virtual assistants (VAs) activation due to…

Audio and Speech Processing · Electrical Eng. & Systems 2022-03-31 Vineet Garg , Ognjen Rudovic , Pranay Dighe , Ahmed H. Abdelaziz , Erik Marchi , Saurabh Adya , Chandra Dhir , Ahmed Tewfik

Organizing sensor nodes in clusters is an effective method for energy preservation in a Wireless Sensor Network (WSN). Throughout this research work we present a novel hybrid clustering scheme, that combines a typical gradient clustering…

Distributed, Parallel, and Cluster Computing · Computer Science 2020-12-07 Basilis Mamalis , Marios Perlitis

Although the diffusion model has achieved remarkable performance in the field of image generation, its high inference delay hinders its wide application in edge devices with scarce computing resources. Therefore, many training-free sampling…

Computer Vision and Pattern Recognition · Computer Science 2024-12-17 Weilun Feng , Chuanguang Yang , Zhulin An , Libo Huang , Boyu Diao , Fei Wang , Yongjun Xu

The recognition of human activities based on WiFi Channel State Information (CSI) enables contactless and visual privacy-preserving sensing in indoor environments. However, poor model generalization, due to varying environmental conditions…

Computer Vision and Pattern Recognition · Computer Science 2024-11-26 Julian Strohmayer , Martin Kampel

Most deep metric learning (DML) methods employ a strategy that forces all positive samples to be close in the embedding space while keeping them away from negative ones. However, such a strategy ignores the internal relationships of…

Computer Vision and Pattern Recognition · Computer Science 2022-06-20 Zelong Zeng , Fan Yang , Zheng Wang , Shin'ichi Satoh

Domain Generalization (DG) aims to resolve distribution shifts between source and target domains, and current DG methods are default to the setting that data from source and target domains share identical categories. Nevertheless, there…

Computer Vision and Pattern Recognition · Computer Science 2024-04-16 Zining Chen , Weiqiu Wang , Zhicheng Zhao , Fei Su , Aidong Men , Hongying Meng

As the size of pre-trained speech recognition models increases, running these large models in low-latency or resource-constrained environments becomes challenging. In this work, we leverage pseudo-labelling to assemble a large-scale…

Computation and Language · Computer Science 2023-11-02 Sanchit Gandhi , Patrick von Platen , Alexander M. Rush

Existing knowledge distillation methods mostly focus on distillation of teacher's prediction and intermediate activation. However, the structured representation, which arguably is one of the most critical ingredients of deep models, is…

Computer Vision and Pattern Recognition · Computer Science 2024-07-16 Jing Yang , Xiatian Zhu , Adrian Bulat , Brais Martinez , Georgios Tzimiropoulos

In this paper, we investigate the knowledge distillation (KD) strategy for object detection and propose an effective framework applicable to both homogeneous and heterogeneous student-teacher pairs. The conventional feature imitation…

Computer Vision and Pattern Recognition · Computer Science 2021-10-13 Lewei Yao , Renjie Pi , Hang Xu , Wei Zhang , Zhenguo Li , Tong Zhang

Cued Speech (CS) is a visual coding tool to encode spoken languages at the phonetic level, which combines lip-reading and hand gestures to effectively assist communication among people with hearing impairments. The Automatic CS Recognition…

Multimedia · Computer Science 2023-08-08 Yuxuan Zhang , Lei Liu , Li Liu

Deep learning achieved great progress recently, however, it is not easy or efficient to further improve its performance by increasing the size of the model. Multi-modal learning can mitigate this challenge by introducing richer and more…

Artificial Intelligence · Computer Science 2025-10-07 Cairong Zhao , Yufeng Jin , Zifan Song , Haonan Chen , Duoqian Miao , Guosheng Hu

Providing users with accurate gestural interfaces, such as gesture recognition based on wrist-worn devices, is a key challenge in mixed reality. However, static machine learning processes in gesture recognition assume that training and test…

Computer Vision and Pattern Recognition · Computer Science 2024-10-08 Junxiao Shen , Matthias De Lange , Xuhai "Orson" Xu , Enmin Zhou , Ran Tan , Naveen Suda , Maciej Lazarewicz , Per Ola Kristensson , Amy Karlson , Evan Strasnick

The emergence of beyond-licensed spectrum sharing in FR1 (0.45-6 GHz) and FR2 (24 - 52 GHz) along with the multi-antenna narrow-beam based directional transmissions demand a wideband spectrum sensing in temporal as well as spatial domains.…

Signal Processing · Electrical Eng. & Systems 2020-08-17 Himani Joshi , Sumit J. Darak , Mohammad Alaee-Kerahroodi , Bhavani Shankar Mysore Rama Rao

Knowledge distillation (KD), a technique widely employed in computer vision, has emerged as a de facto standard for improving the performance of small neural networks. However, prevailing KD-based approaches in video tasks primarily focus…

Computer Vision and Pattern Recognition · Computer Science 2023-12-15 Guiqin Wang , Peng Zhao , Yanjiang Shi , Cong Zhao , Shusen Yang