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The last decades are marked by massive and diverse image data, which shows increasingly high resolution and quality. However, some images we obtained may be corrupted, affecting the perception and the application of downstream tasks. A…

计算机视觉与模式识别 · 计算机科学 2023-02-08 Yanbo Wang , Chuming Lin , Donghao Luo , Ying Tai , Zhizhong Zhang , Yuan Xie

Convolutional neural networks are capable of learning powerful representational spaces, which are necessary for tackling complex learning tasks. However, due to the model capacity required to capture such representations, they are often…

计算机视觉与模式识别 · 计算机科学 2017-11-30 Terrance DeVries , Graham W. Taylor

Accurate surgical phase recognition is crucial for computer-assisted interventions and surgical video analysis. Annotating long surgical videos is labor-intensive, driving research toward leveraging unlabeled data for strong performance…

We develop a Distributionally Robust Optimization (DRO) formulation for Multiclass Logistic Regression (MLR), which could tolerate data contaminated by outliers. The DRO framework uses a probabilistic ambiguity set defined as a ball of…

计算机视觉与模式识别 · 计算机科学 2023-03-28 Ruidi Chen , Boran Hao , Ioannis Ch. Paschalidis

We develop a Distributionally Robust Optimization (DRO) formulation for Multiclass Logistic Regression (MLR), which could tolerate data contaminated by outliers. The DRO framework uses a probabilistic ambiguity set defined as a ball of…

机器学习 · 统计学 2023-03-28 Ruidi Chen , Boran Hao , Ioannis Paschalidis

The ability for policies to generalize to new environments is key to the broad application of RL agents. A promising approach to prevent an agent's policy from overfitting to a limited set of training environments is to apply regularization…

机器学习 · 计算机科学 2019-10-30 Maximilian Igl , Kamil Ciosek , Yingzhen Li , Sebastian Tschiatschek , Cheng Zhang , Sam Devlin , Katja Hofmann

A semi-supervised learning framework using the feedforward-designed convolutional neural networks (FF-CNNs) is proposed for image classification in this work. One unique property of FF-CNNs is that no backpropagation is used in model…

计算机视觉与模式识别 · 计算机科学 2019-02-07 Yueru Chen , Yijing Yang , Min Zhang , C. -C. Jay Kuo

We propose two generic methods for improving semi-supervised learning (SSL). The first integrates weight perturbation (WP) into existing "consistency regularization" (CR) based methods. We implement WP by leveraging variational Bayesian…

机器学习 · 计算机科学 2021-03-22 Kien Do , Truyen Tran , Svetha Venkatesh

We consider the general problem of utilizing both labeled and unlabeled data to improve data representation performance. A new semi-supervised learning framework is proposed by combing manifold regularization and data representation methods…

机器学习 · 计算机科学 2015-02-16 Weiya Ren

Deep learning algorithms have obtained great success in semantic segmentation of very high-resolution (VHR) images. Nevertheless, training these models generally requires a large amount of accurate pixel-wise annotations, which is very…

计算机视觉与模式识别 · 计算机科学 2022-09-07 Yonghao Xu , Pedram Ghamisi

Generative Adversarial Networks (GANs) are known to be difficult to train, despite considerable research effort. Several regularization techniques for stabilizing training have been proposed, but they introduce non-trivial computational…

机器学习 · 计算机科学 2020-02-20 Han Zhang , Zizhao Zhang , Augustus Odena , Honglak Lee

The quality of data augmentation serves as a critical determinant for the performance of contrastive learning in EEG tasks. Although this paradigm is promising for utilizing unlabeled data, static or random augmentation strategies often…

机器学习 · 计算机科学 2026-01-22 Cheol-Hui Lee , Hwa-Yeon Lee , Dong-Joo Kim

The scarcity of labeled data often impedes the application of deep learning to the segmentation of medical images. Semi-supervised learning seeks to overcome this limitation by exploiting unlabeled examples in the learning process. In this…

计算机视觉与模式识别 · 计算机科学 2021-06-25 Jizong Peng , Marco Pedersoli , Christian Desrosiers

PURPOSE: Deep learning methods for classifying prostate cancer (PCa) in ultrasound images typically employ convolutional networks (CNNs) to detect cancer in small regions of interest (ROI) along a needle trace region. However, this approach…

For better clustering performance, appropriate representations are critical. Although many neural network-based metric learning methods have been proposed, they do not directly train neural networks to improve clustering performance. We…

机器学习 · 统计学 2021-03-02 Tomoharu Iwata

Semi-supervised anomaly detection methods leverage a few anomaly examples to yield drastically improved performance compared to unsupervised models. However, they still suffer from two limitations: 1) unlabeled anomalies (i.e., anomaly…

机器学习 · 计算机科学 2023-07-26 Hongzuo Xu , Yijie Wang , Guansong Pang , Songlei Jian , Ning Liu , Yongjun Wang

ROI extraction is an active but challenging task in remote sensing because of the complicated landform, the complex boundaries and the requirement of annotations. Weakly supervised learning (WSL) aims at learning a mapping from input image…

计算机视觉与模式识别 · 计算机科学 2023-05-11 Lingfeng He , Mengze Xu , Jie Ma

The proliferation of optical, electron, and scanning probe microscopies gives rise to large volumes of imaging data of objects as diversified as cells, bacteria, pollen, to nanoparticles and atoms and molecules. In most cases, the…

机器学习 · 计算机科学 2021-05-26 Maxim Ziatdinov , Muammer Yusuf Yaman , Yongtao Liu , David Ginger , Sergei V. Kalinin

Despite transformers being considered as the new standard in computer vision, convolutional neural networks (CNNs) still outperform them in low-data regimes. Nonetheless, CNNs often make decisions based on narrow, specific regions of input…

计算机视觉与模式识别 · 计算机科学 2024-09-27 David Bertoin , Eduardo Hugo Sanchez , Mehdi Zouitine , Emmanuel Rachelson

Deep learning (DL) has shown promise for faster, high quality accelerated MRI reconstruction. However, supervised DL methods depend on extensive amounts of fully-sampled (labeled) data and are sensitive to out-of-distribution (OOD) shifts,…