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相关论文: Self-Supervised Learning Based Handwriting Verific…

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Handwriting authentication is a valuable tool used in various fields, such as fraud prevention and cultural heritage protection. However, it remains a challenging task due to the complex features, severe damage, and lack of supervision. In…

计算机视觉与模式识别 · 计算机科学 2023-07-24 Jingyao Wang , Luntian Mou , Changwen Zheng , Wen Gao

Although semi-supervised variational autoencoder (SemiVAE) works in image classification task, it fails in text classification task if using vanilla LSTM as its decoder. From a perspective of reinforcement learning, it is verified that the…

计算与语言 · 计算机科学 2016-11-28 Weidi Xu , Haoze Sun , Chao Deng , Ying Tan

In self-supervised learning (SSL), representations are learned via an auxiliary task without annotated labels. A common task is to classify augmentations or different modalities of the data, which share semantic content (e.g. an object in…

机器学习 · 计算机科学 2024-10-16 Alice Bizeul , Bernhard Schölkopf , Carl Allen

While state-of-the-art contrastive Self-Supervised Learning (SSL) models produce results competitive with their supervised counterparts, they lack the ability to infer latent variables. In contrast, prescribed latent variable (LV) models…

机器学习 · 计算机科学 2021-12-01 Jason Ramapuram , Dan Busbridge , Xavier Suau , Russ Webb

In this study, a novel self-supervised learning (SSL) method is proposed, which considers SSL in terms of variational inference to learn not only representation but also representation uncertainties. SSL is a method of learning…

计算机视觉与模式识别 · 计算机科学 2023-09-11 Hiroki Nakamura , Masashi Okada , Tadahiro Taniguchi

We propose an effective Hybrid Deep Learning (HDL) architecture for the task of determining the probability that a questioned handwritten word has been written by a known writer. HDL is an amalgamation of Auto-Learned Features (ALF) and…

计算机视觉与模式识别 · 计算机科学 2019-10-08 Mohammad Abuzar Shaikh , Mihir Chauhan , Jun Chu , Sargur Srihari

Generative graph self-supervised learning (SSL) aims to learn node representations by reconstructing the input graph data. However, most existing methods focus on unsupervised learning tasks only and very few work has shown its superiority…

机器学习 · 计算机科学 2023-02-08 Xiang Li , Tiandi Ye , Caihua Shan , Dongsheng Li , Ming Gao

Self-Supervised Learning (SSL) surmises that inputs and pairwise positive relationships are enough to learn meaningful representations. Although SSL has recently reached a milestone: outperforming supervised methods in many modalities\dots…

机器学习 · 计算机科学 2022-06-13 Randall Balestriero , Yann LeCun

We propose a semi-supervised localization approach based on deep generative modeling with variational autoencoders (VAEs). Localization in reverberant environments remains a challenge, which machine learning (ML) has shown promise in…

音频与语音处理 · 电气工程与系统科学 2021-02-15 Michael J. Bianco , Sharon Gannot , Peter Gerstoft

Writer independent offline signature verification is one of the most challenging tasks in pattern recognition as there is often a scarcity of training data. To handle such data scarcity problem, in this paper, we propose a novel…

计算机视觉与模式识别 · 计算机科学 2022-07-13 Siladittya Manna , Soumitri Chattopadhyay , Saumik Bhattacharya , Umapada Pal

Advances in deep learning are re-defining how visual data is processed and understand by the machines. Vision Transformers (ViTs) have recently demonstrated prominent performance in computer vision related tasks. However, their performance…

SigNet is a state of the art model for feature representation used for handwritten signature verification (HSV). This representation is based on a Deep Convolutional Neural Network (DCNN) and contains 2048 dimensions. When transposed to a…

计算机视觉与模式识别 · 计算机科学 2020-10-21 Victor L. F. Souza , Adriano L. I. Oliveira , Rafael M. O. Cruz , Robert Sabourin

Offline handwritten signature verification systems are used to verify the identity of individuals, through recognizing their handwritten signature image as genuine signatures or forgeries. The main tasks of signature verification systems…

计算机视觉与模式识别 · 计算机科学 2024-10-01 Hansong Zhang , Jiangjian Guo , Kun Li , Yang Zhang , Yimei Zhao

Self-supervised learning (SSL) has recently emerged as a powerful approach to learning representations from large-scale unlabeled data, showing promising results in time series analysis. The self-supervised representation learning can be…

机器学习 · 计算机科学 2024-03-18 Ziyu Liu , Azadeh Alavi , Minyi Li , Xiang Zhang

Self-supervised learning (SSL) is a powerful tool in machine learning, but understanding the learned representations and their underlying mechanisms remains a challenge. This paper presents an in-depth empirical analysis of SSL-trained…

机器学习 · 计算机科学 2023-06-01 Ido Ben-Shaul , Ravid Shwartz-Ziv , Tomer Galanti , Shai Dekel , Yann LeCun

Self-supervised learning (SSL) provides a promising alternative for representation learning on hypergraphs without costly labels. However, existing hypergraph SSL models are mostly based on contrastive methods with the instance-level…

机器学习 · 计算机科学 2024-04-19 Fan Li , Xiaoyang Wang , Dawei Cheng , Wenjie Zhang , Ying Zhang , Xuemin Lin

We study semi-supervised learning (SSL) for vision transformers (ViT), an under-explored topic despite the wide adoption of the ViT architectures to different tasks. To tackle this problem, we propose a new SSL pipeline, consisting of first…

计算机视觉与模式识别 · 计算机科学 2022-08-12 Zhaowei Cai , Avinash Ravichandran , Paolo Favaro , Manchen Wang , Davide Modolo , Rahul Bhotika , Zhuowen Tu , Stefano Soatto

Self-supervised learning has developed rapidly over the last decade and has been applied in many areas of computer vision. Decorrelation-based self-supervised pretraining has shown great promise among non-contrastive algorithms, yielding…

计算机视觉与模式识别 · 计算机科学 2024-10-03 Arkadip Maitra , Shree Mitra , Siladittya Manna , Saumik Bhattacharya , Umapada Pal

Despite the empirical successes of self-supervised learning (SSL) methods, it is unclear what characteristics of their representations lead to high downstream accuracies. In this work, we characterize properties that SSL representations…

机器学习 · 计算机科学 2022-12-13 Yann Dubois , Tatsunori Hashimoto , Stefano Ermon , Percy Liang

Human Activity Recognition (HAR) based on the sensors of mobile/wearable devices aims to detect the physical activities performed by humans in their daily lives. Although supervised learning methods are the most effective in this task,…

信号处理 · 电气工程与系统科学 2024-04-25 Sannara Ek , Riccardo Presotto , Gabriele Civitarese , François Portet , Philippe Lalanda , Claudio Bettini
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