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Related papers: Dual Guidance Semi-Supervised Action Detection

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Semi-supervised object detection (SSOD) has made significant progress with the development of pseudo-label-based end-to-end methods. However, many of these methods face challenges due to class imbalance, which hinders the effectiveness of…

Computer Vision and Pattern Recognition · Computer Science 2023-06-06 Purbayan Kar , Vishal Chudasama , Naoyuki Onoe , Pankaj Wasnik

Temporal Activity Detection aims to predict activity classes per frame, in contrast to video-level predictions in Activity Classification (i.e., Activity Recognition). Due to the expensive frame-level annotations required for detection, the…

Computer Vision and Pattern Recognition · Computer Science 2023-02-07 Kumara Kahatapitiya , Zhou Ren , Haoxiang Li , Zhenyu Wu , Michael S. Ryoo , Gang Hua

Semi-supervised learning is a sound measure to relieve the strict demand of abundant annotated datasets, especially for challenging multi-organ segmentation . However, most existing SSL methods predict pixels in a single image…

Computer Vision and Pattern Recognition · Computer Science 2024-05-09 Lu Wen , Zhenghao Feng , Yun Hou , Peng Wang , Xi Wu , Jiliu Zhou , Yan Wang

Semi-supervised video action recognition tends to enable deep neural networks to achieve remarkable performance even with very limited labeled data. However, existing methods are mainly transferred from current image-based methods (e.g.,…

Computer Vision and Pattern Recognition · Computer Science 2022-04-26 Junfei Xiao , Longlong Jing , Lin Zhang , Ju He , Qi She , Zongwei Zhou , Alan Yuille , Yingwei Li

The goal of this paper is to determine the spatio-temporal location of actions in video. Where training from hard to obtain box annotations is the norm, we propose an intuitive and effective algorithm that localizes actions from their class…

Computer Vision and Pattern Recognition · Computer Science 2017-12-14 Pascal Mettes , Cees G. M. Snoek , Shih-Fu Chang

Anomaly action detection and localization play an essential role in security and advanced surveillance systems. However, due to the tremendous amount of surveillance videos, most of the available data for the task is unlabeled or…

Computer Vision and Pattern Recognition · Computer Science 2024-08-27 Nada Osman , Marwan Torki

Weakly-supervised temporal action localization aims to learn detecting temporal intervals of action classes with only video-level labels. To this end, it is crucial to separate frames of action classes from the background frames (i.e.,…

Computer Vision and Pattern Recognition · Computer Science 2020-12-18 Pilhyeon Lee , Jinglu Wang , Yan Lu , Hyeran Byun

I present the Lower Biased Teacher model, an enhancement of the Unbiased Teacher model, specifically tailored for semi-supervised object detection tasks. The primary innovation of this model is the integration of a localization loss into…

Computer Vision and Pattern Recognition · Computer Science 2024-10-07 Shuang Wang

This study explores the application of self-supervised learning (SSL) for improved target recognition in synthetic aperture sonar (SAS) imagery. The unique challenges of underwater environments make traditional computer vision techniques,…

Computer Vision and Pattern Recognition · Computer Science 2023-07-31 BW Sheffield

Existing self-supervised learning (SSL) methods primarily learn object-invariant representations but often neglect the spatial structure and relationships among object parts. To address this limitation, we introduce Spatial Prediction (SP),…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Yang Shen , Yusen Cai , Weronika Hryniewska-Guzik , Qing Lin , Mengmi Zhang

Weakly-supervised Temporal Action Localization (WS-TAL) methods learn to localize temporal starts and ends of action instances in a video under only video-level supervision. Existing WS-TAL methods rely on deep features learned for action…

Computer Vision and Pattern Recognition · Computer Science 2021-03-31 Ziyi Liu , Le Wang , Wei Tang , Junsong Yuan , Nanning Zheng , Gang Hua

Recent advancements in semi-supervised deep learning have introduced effective strategies for leveraging both labeled and unlabeled data to improve classification performance. This work proposes a semi-supervised framework that utilizes a…

Machine Learning · Computer Science 2025-05-21 Aydin Abedinia , Shima Tabakhi , Vahid Seydi

Semi-supervised object detection (SSOD) aims to boost detection performance by leveraging extra unlabeled data. The teacher-student framework has been shown to be promising for SSOD, in which a teacher network generates pseudo-labels for…

Computer Vision and Pattern Recognition · Computer Science 2022-12-07 Honggyu Choi , Zhixiang Chen , Xuepeng Shi , Tae-Kyun Kim

Self-supervised learning (SSL) has recently achieved impressive performance on various time series tasks. The most prominent advantage of SSL is that it reduces the dependence on labeled data. Based on the pre-training and fine-tuning…

Machine Learning · Computer Science 2024-04-09 Kexin Zhang , Qingsong Wen , Chaoli Zhang , Rongyao Cai , Ming Jin , Yong Liu , James Zhang , Yuxuan Liang , Guansong Pang , Dongjin Song , Shirui Pan

Recent advances in semi-supervised learning (SSL) demonstrate that a combination of consistency regularization and pseudo-labeling can effectively improve image classification accuracy in the low-data regime. Compared to classification,…

Computer Vision and Pattern Recognition · Computer Science 2021-03-31 Yuliang Zou , Zizhao Zhang , Han Zhang , Chun-Liang Li , Xiao Bian , Jia-Bin Huang , Tomas Pfister

Semi-supervised learning techniques are gaining popularity due to their capability of building models that are effective, even when scarce amounts of labeled data are available. In this paper, we present a framework and specific tasks for…

Image and Video Processing · Electrical Eng. & Systems 2022-10-05 Antonio Montanaro , Diego Valsesia , Giulia Fracastoro , Enrico Magli

State-of-the-art 3D object detectors are often trained on massive labeled datasets. However, annotating 3D bounding boxes remains prohibitively expensive and time-consuming, particularly for LiDAR. Instead, recent works demonstrate that…

Computer Vision and Pattern Recognition · Computer Science 2024-10-16 Mehar Khurana , Neehar Peri , James Hays , Deva Ramanan

The current success of deep neural networks (DNNs) in an increasingly broad range of tasks involving artificial intelligence strongly depends on the quality and quantity of labeled training data. In general, the scarcity of labeled data,…

Computation and Language · Computer Science 2018-11-21 Shun Kiyono , Jun Suzuki , Kentaro Inui

We address the challenges of the semi-supervised LiDAR segmentation (SSLS) problem, particularly in low-budget scenarios. The two main issues in low-budget SSLS are the poor-quality pseudo-labels for unlabeled data, and the performance…

Computer Vision and Pattern Recognition · Computer Science 2024-10-10 Seungho Lee , Hwijeong Lee , Hyunjung Shim

Labeled time-series data is often expensive and difficult to obtain, making it challenging to train accurate machine learning models for real-world applications such as anomaly detection or fault diagnosis. The scarcity of labeled samples…

Machine Learning · Computer Science 2026-01-21 Tuomas Jalonen , Mohammad Al-Sa'd , Serkan Kiranyaz , Moncef Gabbouj