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In neuroscience research, achieving single-neuron matching across different imaging modalities is critical for understanding the relationship between neuronal structure and function. However, modality gaps and limited annotations present…

计算机视觉与模式识别 · 计算机科学 2025-04-24 Wenwei Li , Liyi Cai , Wu Chen , Anan Li

Zero-shot action recognition, which addresses the issue of scalability and generalization in action recognition and allows the models to adapt to new and unseen actions dynamically, is an important research topic in computer vision…

计算机视觉与模式识别 · 计算机科学 2025-08-25 Jidong Kuang , Hongsong Wang , Chaolei Han , Yang Zhang , Jie Gui

Model-Agnostic Meta-Learning (MAML) is one of the most successful meta-learning techniques for few-shot learning. It uses gradient descent to learn commonalities between various tasks, enabling the model to learn the meta-initialization of…

机器学习 · 计算机科学 2022-08-18 Lin Ding , Peng Liu , Wenfeng Shen , Weijia Lu , Shengbo Chen

Traditional temporal action detection (TAD) usually handles untrimmed videos with small number of action instances from a single label (e.g., ActivityNet, THUMOS). However, this setting might be unrealistic as different classes of actions…

计算机视觉与模式识别 · 计算机科学 2023-03-22 Jing Tan , Xiaotong Zhao , Xintian Shi , Bin Kang , Limin Wang

Teaching machines to recognize a new category based on few training samples especially only one remains challenging owing to the incomprehensive understanding of the novel category caused by the lack of data. However, human can learn new…

计算机视觉与模式识别 · 计算机科学 2021-11-09 Fengyuan Yang , Ruiping Wang , Xilin Chen

Learning to localize actions in long, cluttered, and untrimmed videos is a hard task, that in the literature has typically been addressed assuming the availability of large amounts of annotated training samples for each class -- either in a…

计算机视觉与模式识别 · 计算机科学 2021-09-24 Ting-Ting Xie , Christos Tzelepis , Fan Fu , Ioannis Patras

Few-shot classification is a challenging problem that aims to learn a model that can adapt to unseen classes given a few labeled samples. Recent approaches pre-train a feature extractor, and then fine-tune for episodic meta-learning. Other…

计算机视觉与模式识别 · 计算机科学 2022-03-28 Philip Chikontwe , Soopil Kim , Sang Hyun Park

The difficulty of the fine-grained image classification mainly comes from a shared overall appearance across classes. Thus, recognizing discriminative details, such as eyes and beaks for birds, is a key in the task. However, this is…

计算机视觉与模式识别 · 计算机科学 2023-08-02 SuBeen Lee , WonJun Moon , Hyun Seok Seong , Jae-Pil Heo

Zero-shot human skeleton-based action recognition aims to construct a model that can recognize actions outside the categories seen during training. Previous research has focused on aligning sequences' visual and semantic spatial…

计算机视觉与模式识别 · 计算机科学 2024-06-04 Haojun Xu , Yan Gao , Jie Li , Xinbo Gao

Few-shot temporal action localization (TAL) methods that adapt large models via single-prompt tuning often fail to produce precise temporal boundaries. This stems from the model learning a non-discriminative mean representation of an action…

计算机视觉与模式识别 · 计算机科学 2025-07-25 Edward Fish , Andrew Gilbert

Existing temporal action localization (TAL) works rely on a large number of training videos with exhaustive segment-level annotation, preventing them from scaling to new classes. As a solution to this problem, few-shot TAL (FS-TAL) aims to…

计算机视觉与模式识别 · 计算机科学 2021-10-22 Sauradip Nag , Xiatian Zhu , Tao Xiang

Existing approaches for unsupervised domain adaptive object detection perform feature alignment via adversarial training. While these methods achieve reasonable improvements in performance, they typically perform category-agnostic domain…

计算机视觉与模式识别 · 计算机科学 2021-04-06 Vibashan VS , Vikram Gupta , Poojan Oza , Vishwanath A. Sindagi , Vishal M. Patel

Learning to generate a task-aware base learner proves a promising direction to deal with few-shot learning (FSL) problem. Existing methods mainly focus on generating an embedding model utilized with a fixed metric (eg, cosine distance) for…

计算机视觉与模式识别 · 计算机科学 2020-12-04 Lei Zhang , Fei Zhou , Wei Wei , Yanning Zhang

Weakly-supervised temporal action localization aims to recognize and localize action segments in untrimmed videos given only video-level action labels for training. Without the boundary information of action segments, existing methods…

计算机视觉与模式识别 · 计算机科学 2022-03-30 Bo He , Xitong Yang , Le Kang , Zhiyu Cheng , Xin Zhou , Abhinav Shrivastava

Self-attention has been successfully applied to video representation learning due to the effectiveness of modeling long range dependencies. Existing approaches build the dependencies merely by computing the pairwise correlations along…

计算机视觉与模式识别 · 计算机科学 2021-05-28 Xudong Guo , Xun Guo , Yan Lu

Multimodal time series (MTS) anomaly detection is crucial for maintaining the safety and stability of working devices (e.g., water treatment system and spacecraft), whose data are characterized by multivariate time series with diverse…

机器学习 · 计算机科学 2023-10-18 Chaoyue Ding , Shiliang Sun , Jing Zhao

In few-shot learning scenarios, the challenge is to generalize and perform well on new unseen examples when only very few labeled examples are available for each task. Model-agnostic meta-learning (MAML) has gained the popularity as one of…

机器学习 · 计算机科学 2021-10-19 Sungyong Baik , Janghoon Choi , Heewon Kim , Dohee Cho , Jaesik Min , Kyoung Mu Lee

The goal of spatial-temporal action detection is to determine the time and place where each person's action occurs in a video and classify the corresponding action category. Most of the existing methods adopt fully-supervised learning,…

计算机视觉与模式识别 · 计算机科学 2023-09-21 Wei-Jhe Huang , Jheng-Hsien Yeh , Min-Hung Chen , Gueter Josmy Faure , Shang-Hong Lai

We propose a Dynamic Graph-Based Spatial-Temporal Attention (DG-STA) method for hand gesture recognition. The key idea is to first construct a fully-connected graph from a hand skeleton, where the node features and edges are then…

计算机视觉与模式识别 · 计算机科学 2019-07-23 Yuxiao Chen , Long Zhao , Xi Peng , Jianbo Yuan , Dimitris N. Metaxas

Attention mechanisms is frequently used to learn the discriminative features for better feature representations. In this paper, we extend the attention mechanism to the task of weakly supervised object localization (WSOL) and propose the…

计算机视觉与模式识别 · 计算机科学 2020-07-10 Junhui Yin , Siqing Zhang , Dongliang Chang , Zhanyu Ma , Jun Guo