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While high-resolution pathology images lend themselves well to `data hungry' deep learning algorithms, obtaining exhaustive annotations on these images is a major challenge. In this paper, we propose a self-supervised CNN approach to…

计算机视觉与模式识别 · 计算机科学 2020-08-14 Navid Alemi Koohbanani , Balagopal Unnikrishnan , Syed Ali Khurram , Pavitra Krishnaswamy , Nasir Rajpoot

While supervised deep learning has achieved great success in a range of applications, relatively little work has studied the discovery of knowledge from unlabeled data. In this paper, we propose an unsupervised deep learning framework to…

计算机视觉与模式识别 · 计算机科学 2020-09-14 Jinghua Wang , Jianmin Jiang

Pre-training general-purpose visual features with convolutional neural networks without relying on annotations is a challenging and important task. Most recent efforts in unsupervised feature learning have focused on either small or highly…

计算机视觉与模式识别 · 计算机科学 2019-08-14 Mathilde Caron , Piotr Bojanowski , Julien Mairal , Armand Joulin

Clustering is a fundamental unsupervised learning approach. Many clustering algorithms -- such as $k$-means -- rely on the euclidean distance as a similarity measure, which is often not the most relevant metric for high dimensional data…

机器学习 · 计算机科学 2019-10-22 Aude Genevay , Gabriel Dulac-Arnold , Jean-Philippe Vert

Can pretrained models generalize to new datasets without any retraining? We deploy pretrained image models on datasets they were not trained for, and investigate whether their embeddings form meaningful clusters. Our suite of benchmarking…

机器学习 · 计算机科学 2024-06-05 Scott C. Lowe , Joakim Bruslund Haurum , Sageev Oore , Thomas B. Moeslund , Graham W. Taylor

Learning from fully-unlabeled data is challenging in Multimedia Forensics problems, such as Person Re-Identification and Text Authorship Attribution. Recent self-supervised learning methods have shown to be effective when dealing with…

计算机视觉与模式识别 · 计算机科学 2023-07-03 Gabriel Bertocco , Antônio Theophilo , Fernanda Andaló , Anderson Rocha

In this paper, we consider a highly general image recognition setting wherein, given a labelled and unlabelled set of images, the task is to categorize all images in the unlabelled set. Here, the unlabelled images may come from labelled…

计算机视觉与模式识别 · 计算机科学 2022-06-22 Sagar Vaze , Kai Han , Andrea Vedaldi , Andrew Zisserman

Motivation: Structural heterogeneity in single-particle cryo-electron microscopy (cryo-EM) data represents a major challenge for high-resolution structure determination. Unsupervised classification may serve as the first step in the…

数据分析、统计与概率 · 物理学 2017-11-01 Jiayi Wu , Yong-Bei Ma , Charles Congdon , Bevin Brett , Shuobing Chen , Qi Ouyang , Youdong Mao

Convolutional Neural Networks (CNN) are state-of-the-art models for many image classification tasks. However, to recognize cancer subtypes automatically, training a CNN on gigapixel resolution Whole Slide Tissue Images (WSI) is currently…

计算机视觉与模式识别 · 计算机科学 2016-03-10 Le Hou , Dimitris Samaras , Tahsin M. Kurc , Yi Gao , James E. Davis , Joel H. Saltz

Training a neural network with a large labeled dataset is still a dominant paradigm in computational histopathology. However, obtaining such exhaustive manual annotations is often expensive, laborious, and prone to inter and Intra-observer…

计算机视觉与模式识别 · 计算机科学 2021-11-03 Chetan L. Srinidhi , Seung Wook Kim , Fu-Der Chen , Anne L. Martel

Cancer subtyping is crucial for understanding the nature of tumors and providing suitable therapy. However, existing labelling methods are medically controversial, and have driven the process of subtyping away from teaching signals.…

机器学习 · 计算机科学 2022-11-15 Zheng Chen , Lingwei Zhu , Ziwei Yang , Takashi Matsubara

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

Determining early-stage prognostic markers and stratifying patients for effective treatment are two key challenges for improving outcomes for melanoma patients. Previous studies have used tumour transcriptome data to stratify patients into…

图像与视频处理 · 电气工程与系统科学 2022-02-24 Lucy Godson , Navid Alemi , Jeremie Nsengimana , Graham P. Cook , Emily L. Clarke , Darren Treanor , D. Timothy Bishop , Julia Newton-Bishop , Ali Gooya

The segmentation of medical images is a fundamental step in automated clinical decision support systems. Existing medical image segmentation methods based on supervised deep learning, however, remain problematic because of their reliance on…

计算机视觉与模式识别 · 计算机科学 2021-07-13 Euijoon Ahn , Dagan Feng , Jinman Kim

Presenting whole slide images (WSIs) as graph will enable a more efficient and accurate learning framework for cancer diagnosis. Due to the fact that a single WSI consists of billions of pixels and there is a lack of vast annotated datasets…

图像与视频处理 · 电气工程与系统科学 2023-06-09 Milan Aryal , Nasim Yahyasoltani

Aiming at improving performance of visual classification in a cost-effective manner, this paper proposes an incremental semi-supervised learning paradigm called Deep Co-Space (DCS). Unlike many conventional semi-supervised learning methods…

计算机视觉与模式识别 · 计算机科学 2017-08-01 Ziliang Chen , Keze Wang , Xiao Wang , Pai Peng , Ebroul Izquierdo , Liang Lin

Segmentation of Prostate Cancer (PCa) tissues from Gleason graded histopathology images is vital for accurate diagnosis. Although deep learning (DL) based segmentation methods achieve state-of-the-art accuracy, they rely on large datasets…

图像与视频处理 · 电气工程与系统科学 2021-10-04 Dwarikanath Mahapatra

In this work we used unsupervised machine learning methods in order to find possible clustering structures in superconducting materials data sets. We used the SuperCon database, as well as our own data sets complied from literature, in…

超导电性 · 物理学 2022-07-13 B. Roter , N. Ninkovic , S. V. Dordevic

We present a novel clustering objective that learns a neural network classifier from scratch, given only unlabelled data samples. The model discovers clusters that accurately match semantic classes, achieving state-of-the-art results in…

计算机视觉与模式识别 · 计算机科学 2019-08-23 Xu Ji , João F. Henriques , Andrea Vedaldi

Deep convolutional neural networks have achieved remarkable progress on a variety of medical image computing tasks. A common problem when applying supervised deep learning methods to medical images is the lack of labeled data, which is very…

计算机视觉与模式识别 · 计算机科学 2020-05-12 Xiaomeng Li , Lequan Yu , Hao Chen , Chi-Wing Fu , Lei Xing , Pheng-Ann Heng