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相关论文: Optimizing contrastive learning for cortical foldi…

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Human skeleton point clouds are commonly used to automatically classify and predict the behaviour of others. In this paper, we use a contrastive self-supervised learning method, SimCLR, to learn representations that capture the semantics of…

计算机视觉与模式识别 · 计算机科学 2022-11-11 Nico Lingg , Miguel Sarabia , Luca Zappella , Barry-John Theobald

Brain folding patterns have been reported to carry clinically relevant information. The brain folds mainly during the last trimester of pregnancy, and the process might be durably disturbed by preterm birth. Yet little is known about…

Like fingerprints, cortical folding patterns are unique to each brain even though they follow a general species-specific organization. Some folding patterns have been linked with neurodevelopmental disorders. However, due to the high…

图像与视频处理 · 电气工程与系统科学 2024-08-14 Louise Guillon , Joël Chavas , Audrey Bénézit , Marie-Laure Moutard , Denis Rivière , Jean-François Mangin

Learning a deep model from small data is yet an opening and challenging problem. We focus on one-shot classification by deep learning approach based on a small quantity of training samples. We proposed a novel deep learning approach named…

机器学习 · 计算机科学 2018-02-13 Chuanyun Xu , Yang Zhang , Xin Feng , YongXing Ge , Yihao Zhang , Jianwu Long

Cortical folding exhibits substantial inter-individual variability while preserving stable anatomical landmarks that enable fine-scale characterization of cortical organization. Among these, the three-hinge gyrus (3HG) serves as a key…

神经元与认知 · 定量生物学 2026-02-03 Minheng Chen , Tong Chen , Yan Zhuang , Chao Cao , Jing Zhang , Tianming Liu , Lu Zhang , Dajiang Zhu

Mental disorder populations exhibit pronounced heterogeneity -- that is, the significant differences between samples -- poses a significant challenge to the definition of positive pairs in contrastive learning. To address this, we propose a…

机器学习 · 计算机科学 2026-03-23 Xiaolong Li , Guiliang Guo , Guangqi Wen , Peng Cao , Jinzhu Yang , Honglin Wu , Xiaoli Liu , Fei Wang , Osmar R. Zaiane

Since gyri and sulci, two basic anatomical building blocks of cortical folding patterns, were suggested to bear different functional roles, a precise mapping from brain function to gyro-sulcal patterns can provide profound insights into…

神经元与认知 · 定量生物学 2022-05-24 Li Yang , Zhibin He , Changhe Li , Junwei Han , Dajiang Zhu , Tianming Liu , Tuo Zhang

Dense prediction tasks such as segmentation and detection of pathological entities hold crucial clinical value in computational pathology workflows. However, obtaining dense annotations on large cohorts is usually tedious and expensive.…

计算机视觉与模式识别 · 计算机科学 2023-03-24 Jingwei Zhang , Saarthak Kapse , Ke Ma , Prateek Prasanna , Maria Vakalopoulou , Joel Saltz , Dimitris Samaras

Contrastive self-supervised learning based on point-wise comparisons has been widely studied for vision tasks. In the visual cortex of the brain, neuronal responses to distinct stimulus classes are organized into geometric structures known…

机器学习 · 计算机科学 2026-01-06 Guanming Zhang , David J. Heeger , Stefano Martiniani

Self-supervised visual representation learning aims to learn useful representations without relying on human annotations. Joint embedding approach bases on maximizing the agreement between embedding vectors from different views of the same…

计算机视觉与模式识别 · 计算机科学 2022-04-26 Li Jing , Pascal Vincent , Yann LeCun , Yuandong Tian

Owe to the rapid development of deep neural network (DNN) techniques and the emergence of large scale face databases, face recognition has achieved a great success in recent years. During the training process of DNN, the face features and…

计算机视觉与模式识别 · 计算机科学 2018-01-18 Xianbiao Qi , Lei Zhang

The morphological fingerprint in the brain is capable of identifying the uniqueness of an individual. However, whether such individual patterns are present in perinatal brains, and which morphological attributes or cortical regions better…

机器学习 · 计算机科学 2023-11-28 Boyang Wang , Weihao Zheng , Ying Wang , Zhe Zhang , Yuchen Sheng , Minmin Wang

Human ability to recognize complex visual patterns arises through transformations performed by successive areas in the ventral visual cortex. Deep neural networks trained end-to-end for object recognition approach human capabilities, and…

神经元与认知 · 定量生物学 2024-11-12 Nikhil Parthasarathy , Olivier J. Hénaff , Eero P. Simoncelli

This paper presents SimCLR: a simple framework for contrastive learning of visual representations. We simplify recently proposed contrastive self-supervised learning algorithms without requiring specialized architectures or a memory bank.…

机器学习 · 计算机科学 2020-07-02 Ting Chen , Simon Kornblith , Mohammad Norouzi , Geoffrey Hinton

In this paper, a contrastive representation learning framework is proposed to enhance human action segmentation via pre-training using trimmed (single action) skeleton sequences. Unlike previous representation learning works that are…

计算机视觉与模式识别 · 计算机科学 2025-09-09 Haitao Tian , Pierre Payeur

In recent years, self-supervised representation learning for skeleton-based action recognition has been developed with the advance of contrastive learning methods. The existing contrastive learning methods use normal augmentations to…

计算机视觉与模式识别 · 计算机科学 2021-12-08 Tianyu Guo , Hong Liu , Zhan Chen , Mengyuan Liu , Tao Wang , Runwei Ding

Contrastive Learning (CL) has emerged as a powerful method for training feature extraction models using unlabeled data. Recent studies suggest that incorporating a linear projection head post-backbone significantly enhances model…

机器学习 · 计算机科学 2024-10-08 Huanran Li , Daniel Pimentel-Alarcón

The recent breakthrough achieved by contrastive learning accelerates the pace for deploying unsupervised training on real-world data applications. However, unlabeled data in reality is commonly imbalanced and shows a long-tail distribution,…

计算机视觉与模式识别 · 计算机科学 2021-06-08 Ziyu Jiang , Tianlong Chen , Bobak Mortazavi , Zhangyang Wang

Deep clustering has shown its promising capability in joint representation learning and clustering via deep neural networks. Despite the significant progress, the existing deep clustering works mostly utilize some distribution-based…

计算机视觉与模式识别 · 计算机科学 2023-10-18 Yuankun Xu , Dong Huang , Chang-Dong Wang , Jian-Huang Lai

Deformable shape representations, parameterized by deformations relative to a given template, have proven effective for improved image analysis tasks. However, their broader applicability is hindered by two major challenges. First, existing…

计算机视觉与模式识别 · 计算机科学 2025-03-25 Tonmoy Hossain , Miaomiao Zhang
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