Search Results for author: Ozan Ciga

Found 6 papers, 1 papers with code

Resource and data efficient self supervised learning

no code implementations3 Sep 2021 Ozan Ciga, Tony Xu, Anne L. Martel

We investigate the utility of pretraining by contrastive self supervised learning on both natural-scene and medical imaging datasets when the unlabeled dataset size is small, or when the diversity within the unlabeled set does not lead to better representations.

Self-Supervised Learning

Overcoming the limitations of patch-based learning to detect cancer in whole slide images

no code implementations1 Dec 2020 Ozan Ciga, Tony Xu, Sharon Nofech-Mozes, Shawna Noy, Fang-I Lu, Anne L. Martel

We apply a binary cancer detection network on post neoadjuvant therapy breast cancer WSIs to find the tumor bed outlining the extent of cancer, a task which requires sensitivity and precision across the whole slide.

whole slide images

Self supervised contrastive learning for digital histopathology

2 code implementations27 Nov 2020 Ozan Ciga, Tony Xu, Anne L. Martel

In this paper, we use a contrastive self-supervised learning method called SimCLR that achieved state-of-the-art results on natural-scene images and apply this method to digital histopathology by collecting and pretraining on 57 histopathology datasets without any labels.

Contrastive Learning Self-Supervised Learning

Deep neural network models for computational histopathology: A survey

no code implementations28 Dec 2019 Chetan L. Srinidhi, Ozan Ciga, Anne L. Martel

Histopathological images contain rich phenotypic information that can be used to monitor underlying mechanisms contributing to diseases progression and patient survival outcomes.

Transfer Learning

Learning to segment images with classification labels

no code implementations28 Dec 2019 Ozan Ciga, Anne L. Martel

Annotating data for segmentation is generally considered to be more laborious as the annotator has to draw around the boundaries of regions of interest, as opposed to assigning image patches a class label.

Classification General Classification +2

Multi-layer Domain Adaptation for Deep Convolutional Networks

no code implementations5 Sep 2019 Ozan Ciga, Jianan Chen, Anne Martel

Despite their success in many computer vision tasks, convolutional networks tend to require large amounts of labeled data to achieve generalization.

Domain Adaptation Multi-class Classification

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