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

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We present a self-supervised learning (SSL) method suitable for semi-global tasks such as object detection and semantic segmentation. We enforce local consistency between self-learned features, representing corresponding image locations of…

计算机视觉与模式识别 · 计算机科学 2022-12-09 Ashraful Islam , Ben Lundell , Harpreet Sawhney , Sudipta Sinha , Peter Morales , Richard J. Radke

Automatic speaker verification (ASV) systems are highly vulnerable to presentation attacks, also called spoofing attacks. Replay is among the simplest attacks to mount - yet difficult to detect reliably. The generalization failure of…

音频与语音处理 · 电气工程与系统科学 2020-03-24 Bhusan Chettri , Tomi Kinnunen , Emmanouil Benetos

Self-supervised learning has recently emerged as a strong alternative in document analysis. These approaches are now capable of learning high-quality image representations and overcoming the limitations of supervised methods, which require…

计算机视觉与模式识别 · 计算机科学 2024-04-30 Marwa Dhiaf , Mohamed Ali Souibgui , Kai Wang , Yuyang Liu , Yousri Kessentini , Alicia Fornés , Ahmed Cheikh Rouhou

This paper investigates the effectiveness of self-supervised pre-trained vision transformers (ViTs) compared to supervised pre-trained ViTs and conventional neural networks (ConvNets) for detecting facial deepfake images and videos. It…

计算机视觉与模式识别 · 计算机科学 2024-08-12 Huy H. Nguyen , Junichi Yamagishi , Isao Echizen

In this work, we explore massive pre-training on synthetic word images for enhancing the performance on four benchmark downstream handwriting analysis tasks. To this end, we build a large synthetic dataset of word images rendered in several…

计算机视觉与模式识别 · 计算机科学 2023-04-05 Vittorio Pippi , Silvia Cascianelli , Lorenzo Baraldi , Rita Cucchiara

We introduce S$^2$VS, a video similarity learning approach with self-supervision. Self-Supervised Learning (SSL) is typically used to train deep models on a proxy task so as to have strong transferability on target tasks after fine-tuning.…

计算机视觉与模式识别 · 计算机科学 2023-06-19 Giorgos Kordopatis-Zilos , Giorgos Tolias , Christos Tzelepis , Ioannis Kompatsiaris , Ioannis Patras , Symeon Papadopoulos

Self-supervised learning (SSL) has had great success in both computer vision. Most of the current mainstream computer vision SSL frameworks are based on Siamese network architecture. These approaches often rely on cleverly crafted loss…

机器学习 · 计算机科学 2024-01-30 Daesoo Lee , Erlend Aune

Designing learning-based no-reference (NR) video quality assessment (VQA) algorithms for camera-captured videos is cumbersome due to the requirement of a large number of human annotations of quality. In this work, we propose a…

图像与视频处理 · 电气工程与系统科学 2022-12-01 Shankhanil Mitra , Saiyam Jogani , Rajiv Soundararajan

Self-Supervised Learning (SSL) is a valuable and robust training methodology for contemporary Deep Neural Networks (DNNs), enabling unsupervised pretraining on a 'pretext task' that does not require ground-truth labels/annotation. This…

Freeform handwriting authentication verifies a person's identity from their writing style and habits in messy handwriting data. This technique has gained widespread attention in recent years as a valuable tool for various fields, e.g.,…

计算机视觉与模式识别 · 计算机科学 2024-08-20 Jingyao Wang , Luntian Mou , Changwen Zheng , Wen Gao

Self-supervised learning (SSL) has proven effective in solving various problems by generating internal supervisory signals. Unsupervised anomaly detection, which faces the high cost of obtaining true labels, is an area that can greatly…

机器学习 · 计算机科学 2023-07-14 Jaemin Yoo , Yue Zhao , Lingxiao Zhao , Leman Akoglu

While methods based on Vision Transformers (ViT) have achieved state-of-the-art performance in many domains, they have not yet been applied successfully in the domain of writer retrieval. The field is dominated by methods using handcrafted…

计算机视觉与模式识别 · 计算机科学 2024-09-04 Tim Raven , Arthur Matei , Gernot A. Fink

Self-supervised learning (SSL) has demonstrated its effectiveness in learning representations through comparison methods that align with human intuition. However, mainstream SSL methods heavily rely on high body datasets with single label,…

计算机视觉与模式识别 · 计算机科学 2025-07-01 Jiale Chen

Self-supervised learning (SSL) has become a popular method for generating invariant representations without the need for human annotations. Nonetheless, the desired invariant representation is achieved by utilising prior online…

机器学习 · 计算机科学 2024-09-30 Foivos Ntelemis , Yaochu Jin , Spencer A. Thomas

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…

计算机视觉与模式识别 · 计算机科学 2026-03-09 Ariel Basso Madjoukeng , Jérôme Fink , Pierre Poitier , Edith Belise Kenmogne , Benoit Frenay

Self-Supervised Learning (SSL) has shown significant potential and has garnered increasing interest in graph learning. However, particularly for generative SSL methods, its potential in Heterogeneous Graph Learning (HGL) remains relatively…

机器学习 · 计算机科学 2024-04-23 Yulan Hu , Zhirui Yang , Sheng Ouyang , Yong Liu

Self-supervised learning (SSL) methods aim to exploit the abundance of unlabelled data for machine learning (ML), however the underlying principles are often method-specific. An SSL framework derived from biological first principles of…

机器学习 · 计算机科学 2023-08-03 Franz Scherr , Qinghai Guo , Timoleon Moraitis

We evaluate the effectiveness of semi-supervised learning (SSL) on a realistic benchmark where data exhibits considerable class imbalance and contains images from novel classes. Our benchmark consists of two fine-grained classification…

计算机视觉与模式识别 · 计算机科学 2021-04-02 Jong-Chyi Su , Zezhou Cheng , Subhransu Maji

Density estimation, compression and data generation are crucial tasks in artificial intelligence. Variational Auto-Encoders (VAEs) constitute a single framework to achieve these goals. Here, we present a novel class of generative models,…

机器学习 · 统计学 2021-07-07 Ioannis Gatopoulos , Jakub M. Tomczak

Self-supervised learning (SSL) has proven to be a powerful approach for extracting biologically meaningful representations from single-cell data. To advance our understanding of SSL methods applied to single-cell data, we present…