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相关论文: Learning Video Representations using Contrastive B…

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Video object detection is a challenging task because videos often suffer from image deterioration such as motion blur, occlusion, and deformable shapes, making it significantly more difficult than detecting objects in still images. Prior…

计算机视觉与模式识别 · 计算机科学 2025-08-29 Lucas Rakotoarivony

We propose ViC-MAE, a model that combines both Masked AutoEncoders (MAE) and contrastive learning. ViC-MAE is trained using a global featured obtained by pooling the local representations learned under an MAE reconstruction loss and…

计算机视觉与模式识别 · 计算机科学 2024-10-04 Jefferson Hernandez , Ruben Villegas , Vicente Ordonez

We apply reinforcement learning to video compressive sensing to adapt the compression ratio. Specifically, video snapshot compressive imaging (SCI), which captures high-speed video using a low-speed camera is considered in this work, in…

计算机视觉与模式识别 · 计算机科学 2021-05-19 Sidi Lu , Xin Yuan , Aggelos K Katsaggelos , Weisong Shi

Contrastive learning (CL) methods effectively learn data representations in a self-supervision manner, where the encoder contrasts each positive sample over multiple negative samples via a one-vs-many softmax cross-entropy loss. By…

This paper presents Probabilistic Video Contrastive Learning, a self-supervised representation learning method that bridges contrastive learning with probabilistic representation. We hypothesize that the clips composing the video have…

计算机视觉与模式识别 · 计算机科学 2022-04-11 Jungin Park , Jiyoung Lee , Ig-Jae Kim , Kwanghoon Sohn

This paper improves contrastive learning for sentence embeddings from two perspectives: handling dropout noise and addressing feature corruption. Specifically, for the first perspective, we identify that the dropout noise from negative…

计算与语言 · 计算机科学 2023-12-25 Jiahao Xu , Wei Shao , Lihui Chen , Lemao Liu

Contrastive learning applied to self-supervised representation learning has seen a resurgence in recent years, leading to state of the art performance in the unsupervised training of deep image models. Modern batch contrastive approaches…

This paper introduces a novel approach named CrossVideo, which aims to enhance self-supervised cross-modal contrastive learning in the field of point cloud video understanding. Traditional supervised learning methods encounter limitations…

计算机视觉与模式识别 · 计算机科学 2024-01-30 Yunze Liu , Changxi Chen , Zifan Wang , Li Yi

Visual reinforcement learning has proven effective in solving control tasks with high-dimensional observations. However, extracting reliable and generalizable representations from vision-based observations remains a central challenge.…

计算机视觉与模式识别 · 计算机科学 2025-09-11 Xiaobo Hu , Youfang Lin , Yue Liu , Jinwen Wang , Shuo Wang , Hehe Fan , Kai Lv

With the rise of short video platforms as prominent channels for news dissemination, major platforms in China have gradually evolved into fertile grounds for the proliferation of fake news. However, distinguishing short video rumors poses a…

计算机视觉与模式识别 · 计算机科学 2023-05-18 Yuxing Yang , Junhao Zhao , Siyi Wang , Xiangyu Min , Pengchao Wang , Haizhou Wang

Recent literature has shown that features obtained from supervised training of CNNs may over-emphasize texture rather than encoding high-level information. In self-supervised learning in particular, texture as a low-level cue may provide…

计算机视觉与模式识别 · 计算机科学 2023-01-30 Shlok Mishra , Anshul Shah , Ankan Bansal , Janit Anjaria , Jonghyun Choi , Abhinav Shrivastava , Abhishek Sharma , David Jacobs

Compared to CNN-based methods, Transformer-based methods achieve impressive image restoration outcomes due to their abilities to model remote dependencies. However, how to apply Transformer-based methods to the field of blind…

计算机视觉与模式识别 · 计算机科学 2023-10-09 Qingguo Liu , Pan Gao , Kang Han , Ningzhong Liu , Wei Xiang

We use multilayer Long Short Term Memory (LSTM) networks to learn representations of video sequences. Our model uses an encoder LSTM to map an input sequence into a fixed length representation. This representation is decoded using single or…

机器学习 · 计算机科学 2016-01-05 Nitish Srivastava , Elman Mansimov , Ruslan Salakhutdinov

Adversarial training (AT) as a regularization method has proved its effectiveness in various tasks, such as image classification and text classification. Though there are successful applications of AT in many tasks of natural language…

计算与语言 · 计算机科学 2019-11-12 Ziqing Yang , Yiming Cui , Wanxiang Che , Ting Liu , Shijin Wang , Guoping Hu

This paper provides a review on representation learning for videos. We classify recent spatiotemporal feature learning methods for sequential visual data and compare their pros and cons for general video analysis. Building effective…

计算机视觉与模式识别 · 计算机科学 2024-05-13 Elham Ravanbakhsh , Yongqing Liang , J. Ramanujam , Xin Li

Previous researches of sketches often considered sketches in pixel format and leveraged CNN based models in the sketch understanding. Fundamentally, a sketch is stored as a sequence of data points, a vector format representation, rather…

计算机视觉与模式识别 · 计算机科学 2020-05-20 Hangyu Lin , Yanwei Fu , Yu-Gang Jiang , Xiangyang Xue

Although the self-supervised pre-training of transformer models has resulted in the revolutionizing of natural language processing (NLP) applications and the achievement of state-of-the-art results with regard to various benchmarks, this…

计算与语言 · 计算机科学 2023-01-26 Xiang Chen , Xin Xie , Zhen Bi , Hongbin Ye , Shumin Deng , Ningyu Zhang , Huajun Chen

Considering the close connection between action recognition and human pose estimation, we design a Collaboratively Self-supervised Video Representation (CSVR) learning framework specific to action recognition by jointly factoring in…

计算机视觉与模式识别 · 计算机科学 2025-02-03 Jie Zhang , Zhifan Wan , Lanqing Hu , Stephen Lin , Shuzhe Wu , Shiguang Shan

This review paper provides a comprehensive analysis of recent advances in automatic speech recognition (ASR) with bidirectional encoder representations from transformers BERT and connectionist temporal classification (CTC) transformers. The…

计算与语言 · 计算机科学 2024-10-15 Noussaiba Djeffal , Hamza Kheddar , Djamel Addou , Ahmed Cherif Mazari , Yassine Himeur

Effective representation learning is critical for short text clustering due to the sparse, high-dimensional and noise attributes of short text corpus. Existing pre-trained models (e.g., Word2vec and BERT) have greatly improved the…

计算与语言 · 计算机科学 2021-09-22 Hui Yin , Xiangyu Song , Shuiqiao Yang , Guangyan Huang , Jianxin Li
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