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Semi-supervised learning methods have shown promising results in solving many practical problems when only a few labels are available. The existing methods assume that the class distributions of labeled and unlabeled data are equal;…

机器学习 · 计算机科学 2024-08-06 Min Gu Kwak , Hyungu Kahng , Seoung Bum Kim

We propose Graph Contrastive Learning (GraphCL), a general framework for learning node representations in a self supervised manner. GraphCL learns node embeddings by maximizing the similarity between the representations of two randomly…

机器学习 · 计算机科学 2020-07-17 Hakim Hafidi , Mounir Ghogho , Philippe Ciblat , Ananthram Swami

Self-supervised learning aims to learn a embedding space where semantically similar samples are close. Contrastive learning methods pull views of samples together and push different samples away, which utilizes semantic invariance of…

机器学习 · 计算机科学 2023-02-17 Lu Han , Han-Jia Ye , De-Chuan Zhan

Contrastive learning-based recommendation algorithms have significantly advanced the field of self-supervised recommendation, particularly with BPR as a representative ranking prediction task that dominates implicit collaborative filtering.…

信息检索 · 计算机科学 2024-03-13 Shipeng Song , Bin Liu , Fei Teng , Tianrui Li

Self-supervised Learning (SSL) including the mainstream contrastive learning has achieved great success in learning visual representations without data annotations. However, most of methods mainly focus on the instance level information…

计算机视觉与模式识别 · 计算机科学 2021-07-26 Mingkai Zheng , Shan You , Fei Wang , Chen Qian , Changshui Zhang , Xiaogang Wang , Chang Xu

Recently, self-supervised contrastive learning has achieved great success on various tasks. However, its underlying working mechanism is yet unclear. In this paper, we first provide the tightest bounds based on the widely adopted assumption…

机器学习 · 计算机科学 2025-11-06 Qi Zhang , Yifei Wang , Yisen Wang

Unsupervised learning on 3D point clouds has undergone a rapid evolution, especially thanks to data augmentation-based contrastive methods. However, data augmentation is not ideal as it requires a careful selection of the type of…

计算机视觉与模式识别 · 计算机科学 2022-10-07 Guofeng Mei , Cristiano Saltori , Fabio Poiesi , Jian Zhang , Elisa Ricci , Nicu Sebe , Qiang Wu

Self-distillation (SD), a technique where a model improves itself using its own predictions, has attracted attention as a simple yet powerful approach in machine learning. Despite its widespread use, the mechanisms underlying its…

机器学习 · 统计学 2025-11-20 Kaito Takanami , Takashi Takahashi , Ayaka Sakata

Self-supervised learning is showing great promise for monocular depth estimation, using geometry as the only source of supervision. Depth networks are indeed capable of learning representations that relate visual appearance to 3D properties…

计算机视觉与模式识别 · 计算机科学 2020-02-28 Vitor Guizilini , Rui Hou , Jie Li , Rares Ambrus , Adrien Gaidon

Self-supervised representation learning of biological sequence embeddings alleviates computational resource constraints on downstream tasks while circumventing expensive experimental label acquisition. However, existing methods mostly…

生物大分子 · 定量生物学 2020-12-29 Amy X. Lu , Alex X. Lu , Alan Moses

Detecting anomalies is one fundamental aspect of a safety-critical software system, however, it remains a long-standing problem. Numerous branches of works have been proposed to alleviate the complication and have demonstrated their…

机器学习 · 计算机科学 2023-01-31 Hyunsoo Cho , Jinseok Seol , Sang-goo Lee

The success of deep learning is usually accompanied by the growth in neural network depth. However, the traditional training method only supervises the neural network at its last layer and propagates the supervision layer-by-layer, which…

计算机视觉与模式识别 · 计算机科学 2022-07-13 Linfeng Zhang , Xin Chen , Junbo Zhang , Runpei Dong , Kaisheng Ma

With the escalated demand of human-machine interfaces for intelligent systems, development of gaze controlled system have become a necessity. Gaze, being the non-intrusive form of human interaction, is one of the best suited approach.…

计算机视觉与模式识别 · 计算机科学 2023-08-08 Somsukla Maiti , Akshansh Gupta

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…

计算机视觉与模式识别 · 计算机科学 2023-01-30 André Correia , Luís A. Alexandre

Semi-supervised learning aims to boost the accuracy of a model by exploring unlabeled images. The state-of-the-art methods are consistency-based which learn about unlabeled images by encouraging the model to give consistent predictions for…

计算机视觉与模式识别 · 计算机科学 2021-10-11 Rongchang Xie , Chunyu Wang , Wenjun Zeng , Yizhou Wang

In self-supervised representation learning, Siamese networks are a natural architecture for learning transformation-invariance by bringing representations of positive pairs closer together. But it is prone to collapse into a degenerate…

机器学习 · 计算机科学 2025-03-13 Byeongchan Lee , Sehyun Lee

Self-supervised learning has achieved remarkable success in learning visual representations from clean data, yet remains challenging when clean observations are sparse or not available at all. In this paper, we demonstrate that pretrained…

计算机视觉与模式识别 · 计算机科学 2026-04-27 Konstantinos Alexis , Giorgos Giannopoulos , Dimitrios Gunopulos

Estimating a depth map from a single RGB image has been investigated widely for localization, mapping, and 3-dimensional object detection. Recent studies on a single-view depth estimation are mostly based on deep Convolutional neural…

计算机视觉与模式识别 · 计算机科学 2021-03-18 Dongseok Shim , H. Jin Kim

Recent methods for learning unsupervised visual representations, dubbed contrastive learning, optimize the noise-contrastive estimation (NCE) bound on mutual information between two views of an image. NCE uses randomly sampled negative…

机器学习 · 计算机科学 2020-10-06 Mike Wu , Milan Mosse , Chengxu Zhuang , Daniel Yamins , Noah Goodman

Preserving maximal information is one of principles of designing self-supervised learning methodologies. To reach this goal, contrastive learning adopts an implicit way which is contrasting image pairs. However, we believe it is not fully…

计算机视觉与模式识别 · 计算机科学 2022-04-14 Hong-Yu Zhou , Chixiang Lu , Sibei Yang , Xiaoguang Han , Yizhou Yu
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