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Understanding the structure of complex activities in untrimmed videos is a challenging task in the area of action recognition. One problem here is that this task usually requires a large amount of hand-annotated minute- or even hour-long…

计算机视觉与模式识别 · 计算机科学 2020-10-01 Rosaura G. VidalMata , Walter J. Scheirer , Anna Kukleva , David Cox , Hilde Kuehne

Recently self supervised learning has seen explosive growth and use in variety of machine learning tasks because of its ability to avoid the cost of annotating large-scale datasets. This paper gives an overview for best self supervised…

机器学习 · 计算机科学 2022-10-21 Naman Goyal

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…

计算机视觉与模式识别 · 计算机科学 2021-03-31 Ziyi Liu , Le Wang , Wei Tang , Junsong Yuan , Nanning Zheng , Gang Hua

The goal of semi-supervised learning is to utilize the unlabeled, in-domain dataset U to improve models trained on the labeled dataset D. Under the context of large-scale language-model (LM) pretraining, how we can make the best use of U is…

计算与语言 · 计算机科学 2020-11-20 Zijun Sun , Chun Fan , Xiaofei Sun , Yuxian Meng , Fei Wu , Jiwei Li

The Audio-Visual Video Parsing task aims to identify and temporally localize the events that occur in either or both the audio and visual streams of audible videos. It often performs in a weakly-supervised manner, where only video event…

计算机视觉与模式识别 · 计算机科学 2024-06-04 Jinxing Zhou , Dan Guo , Yiran Zhong , Meng Wang

The recent success in human action recognition with deep learning methods mostly adopt the supervised learning paradigm, which requires significant amount of manually labeled data to achieve good performance. However, label collection is an…

计算机视觉与模式识别 · 计算机科学 2018-09-07 Junnan Li , Yongkang Wong , Qi Zhao , Mohan S. Kankanhalli

Human adaptability relies crucially on learning and merging knowledge from both supervised and unsupervised tasks: the parents point out few important concepts, but then the children fill in the gaps on their own. This is particularly…

计算机视觉与模式识别 · 计算机科学 2021-04-01 Silvia Bucci , Antonio D'Innocente , Yujun Liao , Fabio Maria Carlucci , Barbara Caputo , Tatiana Tommasi

We introduce the SaaS Algorithm for semi-supervised learning, which uses learning speed during stochastic gradient descent in a deep neural network to measure the quality of an iterative estimate of the posterior probability of unknown…

计算机视觉与模式识别 · 计算机科学 2018-05-04 Safa Cicek , Alhussein Fawzi , Stefano Soatto

For a robot deployed in the world, it is desirable to have the ability of autonomous learning to improve its initial pre-set knowledge. We formalize this as a bootstrapped self-supervised learning problem where a system is initially…

计算机视觉与模式识别 · 计算机科学 2021-08-03 Yihao Zhang , John J. Leonard

The label-embedded dictionary learning (DL) algorithms generate influential dictionaries by introducing discriminative information. However, there exists a limitation: All the label-embedded DL methods rely on the labels due that this way…

机器学习 · 计算机科学 2021-12-06 Shuai Shao , Lei Xing , Wei Yu , Rui Xu , Yanjiang Wang , Baodi Liu

Although data is abundant, data labeling is expensive. Semi-supervised learning methods combine a few labeled samples with a large corpus of unlabeled data to effectively train models. This paper introduces our proposed method LiDAM, a…

机器学习 · 计算机科学 2020-11-25 Qun Liu , Matthew Shreve , Raja Bala

Semi-supervised Camouflaged Object Detection (SSCOD) aims to reduce reliance on costly pixel-level annotations by leveraging limited annotated data and abundant unlabeled data. However, existing SSCOD methods based on Teacher-Student…

计算机视觉与模式识别 · 计算机科学 2025-08-01 Xihang Hu , Fuming Sun , Jiazhe Liu , Feilong Xu , Xiaoli Zhang

The perception of autonomous vehicles using radars has attracted increased research interest due its ability to operate in fog and bad weather. However, training radar models is hindered by the cost and difficulty of annotating large-scale…

计算机视觉与模式识别 · 计算机科学 2024-04-19 Yiduo Hao , Sohrab Madani , Junfeng Guan , Mohammed Alloulah , Saurabh Gupta , Haitham Hassanieh

To address semi-supervised learning from both labeled and unlabeled data, we present a novel meta-learning scheme. We particularly consider that labeled and unlabeled data share disjoint ground truth label sets, which can be seen tasks like…

计算机视觉与模式识别 · 计算机科学 2020-08-26 Yun-Chun Chen , Chao-Te Chou , Yu-Chiang Frank Wang

Recent advances in supervised deep learning methods are enabling remote measurements of photoplethysmography-based physiological signals using facial videos. The performance of these supervised methods, however, are dependent on the…

计算机视觉与模式识别 · 计算机科学 2021-12-15 Hao Wang , Euijoon Ahn , Jinman Kim

Temporal Action Localization (TAL) has garnered significant attention in information retrieval. Existing supervised or weakly supervised methods heavily rely on labeled temporal boundaries and action categories, which are labor-intensive…

计算机视觉与模式识别 · 计算机科学 2025-06-06 Rui Xia , Dan Jiang , Quan Zhang , Ke Zhang , Chun Yuan

Self-supervised feature learning enables perception systems to benefit from the vast raw data recorded by vehicle fleets worldwide. While video-level self-supervised learning approaches have shown strong generalizability on classification…

计算机视觉与模式识别 · 计算机科学 2023-11-09 Christopher Lang , Alexander Braun , Lars Schillingmann , Karsten Haug , Abhinav Valada

We present a neural semi-supervised learning model termed Self-Pretraining. Our model is inspired by the classic self-training algorithm. However, as opposed to self-training, Self-Pretraining is threshold-free, it can potentially update…

计算与语言 · 计算机科学 2021-10-01 Payam Karisani , Negin Karisani

Data-driven based approaches, in spite of great success in many tasks, have poor generalization when applied to unseen image domains, and require expensive cost of annotation especially for dense pixel prediction tasks such as semantic…

计算机视觉与模式识别 · 计算机科学 2021-03-09 Shuaijun Chen , Xu Jia , Jianzhong He , Yongjie Shi , Jianzhuang Liu

Self-training via pseudo labeling is a conventional, simple, and popular pipeline to leverage unlabeled data. In this work, we first construct a strong baseline of self-training (namely ST) for semi-supervised semantic segmentation via…

计算机视觉与模式识别 · 计算机科学 2022-03-04 Lihe Yang , Wei Zhuo , Lei Qi , Yinghuan Shi , Yang Gao