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Contrastive learning has shown impressive success in enhancing feature discriminability for various visual tasks in a self-supervised manner, but the standard contrastive paradigm (features+$\ell_{2}$ normalization) has limited benefits…

Computer Vision and Pattern Recognition · Computer Science 2024-06-11 Junjie Li , Yixin Zhang , Zilei Wang , Saihui Hou , Keyu Tu , Man Zhang

This paper presents a framework for learning visual representations from unlabeled video demonstrations captured from multiple viewpoints. We show that these representations are applicable for imitating several robotic tasks, including pick…

Computer Vision and Pattern Recognition · Computer Science 2023-01-30 André Correia , Luís A. Alexandre

A large-scale industrial recommendation platform typically consists of multiple associated scenarios, requiring a unified click-through rate (CTR) prediction model to serve them simultaneously. Existing approaches for multi-scenario CTR…

Information Retrieval · Computer Science 2023-06-26 Xing Tang , Yang Qiao , Yuwen Fu , Fuyuan Lyu , Dugang Liu , Xiuqiang He

Modern self-supervised learning algorithms typically enforce persistency of instance representations across views. While being very effective on learning holistic image and video representations, such an objective becomes sub-optimal for…

Computer Vision and Pattern Recognition · Computer Science 2022-04-05 Liangzhe Yuan , Rui Qian , Yin Cui , Boqing Gong , Florian Schroff , Ming-Hsuan Yang , Hartwig Adam , Ting Liu

Context-aware methods achieved great success in supervised scene text recognition via incorporating semantic priors from words. We argue that such prior contextual information can be interpreted as the relations of textual primitives due to…

Computer Vision and Pattern Recognition · Computer Science 2023-08-02 Jinglei Zhang , Tiancheng Lin , Yi Xu , Kai Chen , Rui Zhang

Machine unlearning aims to eliminate the influence of a subset of training samples (i.e., unlearning samples) from a trained model. Effectively and efficiently removing the unlearning samples without negatively impacting the overall model…

Machine Learning · Computer Science 2024-01-22 Hong kyu Lee , Qiuchen Zhang , Carl Yang , Jian Lou , Li Xiong

The sequential recommendation systems capture users' dynamic behavior patterns to predict their next interaction behaviors. Most existing sequential recommendation methods only exploit the local context information of an individual…

Information Retrieval · Computer Science 2022-06-08 Yixin Zhang , Yong Liu , Yonghui Xu , Hao Xiong , Chenyi Lei , Wei He , Lizhen Cui , Chunyan Miao

Despite the rapid growth of online advertisement in developing countries, existing highly over-parameterized Click-Through Rate (CTR) prediction models are difficult to be deployed due to the limited computing resources. In this paper, by…

Machine Learning · Computer Science 2021-04-16 Joonyoung Yi , Buru Chang

Contrastive learning has shown great potential in video representation learning. However, existing approaches fail to sufficiently exploit short-term motion dynamics, which are crucial to various down-stream video understanding tasks. In…

Computer Vision and Pattern Recognition · Computer Science 2022-08-15 Jingcheng Ni , Nan Zhou , Jie Qin , Qian Wu , Junqi Liu , Boxun Li , Di Huang

Unsupervised clustering aims at discovering the semantic categories of data according to some distance measured in the representation space. However, different categories often overlap with each other in the representation space at the…

Machine Learning · Computer Science 2021-06-01 Dejiao Zhang , Feng Nan , Xiaokai Wei , Shangwen Li , Henghui Zhu , Kathleen McKeown , Ramesh Nallapati , Andrew Arnold , Bing Xiang

Advertising click-through rate (CTR) prediction aims to forecast the probability that a user will click on an advertisement in a given context, thus providing enterprises with decision support for product ranking and ad placement. However,…

Machine Learning · Computer Science 2024-11-26 Xiaowei Xi , Song Leng , Yuqing Gong , Dalin Li

Contrastive learning has gained significant attention in skeleton-based action recognition for its ability to learn robust representations from unlabeled data. However, existing methods rely on a single skeleton convention, which limits…

Computer Vision and Pattern Recognition · Computer Science 2025-08-21 Mert Kiray , Alvaro Ritter , Nassir Navab , Benjamin Busam

Classification of multi-dimensional time series from real-world systems require fine-grained learning of complex features such as cross-dimensional dependencies and intra-class variations-all under the practical challenge of low training…

Machine Learning · Computer Science 2025-05-16 Anushiya Arunan , Yan Qin , Xiaoli Li , Yuen Chau

Recent advances in unsupervised deep graph clustering have been significantly promoted by contrastive learning. Despite the strides, most graph contrastive learning models face challenges: 1) graph augmentation is used to improve learning…

Machine Learning · Computer Science 2024-08-23 Chusheng Zeng , Bocheng Wang , Jinghui Yuan , Rong Wang , Mulin Chen

Contrastive Learning (CL) is a recent representation learning approach, which encourages inter-class separability and intra-class compactness in learned image representations. Since medical images often contain multiple semantic classes in…

Computer Vision and Pattern Recognition · Computer Science 2021-08-09 Prashant Pandey , Ajey Pai , Nisarg Bhatt , Prasenjit Das , Govind Makharia , Prathosh AP , Mausam

We present CURL: Contrastive Unsupervised Representations for Reinforcement Learning. CURL extracts high-level features from raw pixels using contrastive learning and performs off-policy control on top of the extracted features. CURL…

Machine Learning · Computer Science 2020-09-22 Aravind Srinivas , Michael Laskin , Pieter Abbeel

Sign language recognition (SLR) is a machine learning task aiming to identify signs in videos. Due to the scarcity of annotated data, unsupervised methods like contrastive learning have become promising in this field. They learn meaningful…

Computer Vision and Pattern Recognition · Computer Science 2026-03-09 Ariel Basso Madjoukeng , Jérôme Fink , Pierre Poitier , Edith Belise Kenmogne , Benoit Frenay

To extract robust deep representations from long sequential modeling of speech data, we propose a self-supervised learning approach, namely Contrastive Separative Coding (CSC). Our key finding is to learn such representations by separating…

Audio and Speech Processing · Electrical Eng. & Systems 2021-03-02 Jun Wang , Max W. Y. Lam , Dan Su , Dong Yu

We propose a self-supervised method to learn feature representations from videos. A standard approach in traditional self-supervised methods uses positive-negative data pairs to train with contrastive learning strategy. In such a case,…

Computer Vision and Pattern Recognition · Computer Science 2020-08-13 Li Tao , Xueting Wang , Toshihiko Yamasaki

The success of Transformer-based models has encouraged many researchers to learn CAD models using sequence-based approaches. However, learning CAD models is still a challenge, because they can be represented as complex shapes with long…

Computer Vision and Pattern Recognition · Computer Science 2024-04-03 Minseop Jung , Minseong Kim , Jibum Kim
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