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Segmentation uncertainty models predict a distribution over plausible segmentations for a given input, which they learn from the annotator variation in the training set. However, in practice these annotations can differ systematically in…

计算机视觉与模式识别 · 计算机科学 2023-03-29 Kilian Zepf , Eike Petersen , Jes Frellsen , Aasa Feragen

Medical image segmentation plays an important role in many image-guided clinical approaches. However, existing segmentation algorithms mostly rely on the availability of fully annotated images with pixel-wise annotations for training, which…

计算机视觉与模式识别 · 计算机科学 2024-04-23 Yuyan Shi , Jialu Ma , Jin Yang , Shasha Wang , Yichi Zhang

Two of the most common tasks in medical imaging are classification and segmentation. Either task requires labeled data annotated by experts, which is scarce and expensive to collect. Annotating data for segmentation is generally considered…

计算机视觉与模式识别 · 计算机科学 2020-12-01 Ozan Ciga , Anne L. Martel

Annotators exhibit disagreement during data labeling, which can be termed as annotator label uncertainty. Annotator label uncertainty manifests in variations of labeling quality. Training with a single low-quality annotation per sample…

计算机视觉与模式识别 · 计算机科学 2024-03-18 Chen Zhou , Mohit Prabhushankar , Ghassan AlRegib

Building an accurate computer-aided diagnosis system based on data-driven approaches requires a large amount of high-quality labeled data. In medical imaging analysis, multiple expert annotators often produce subjective estimates about…

计算机视觉与模式识别 · 计算机科学 2022-03-22 Khiem H. Le , Tuan V. Tran , Hieu H. Pham , Hieu T. Nguyen , Tung T. Le , Ha Q. Nguyen

Manual annotation of medical images is highly subjective, leading to inevitable and huge annotation biases. Deep learning models may surpass human performance on a variety of tasks, but they may also mimic or amplify these biases. Although…

计算机视觉与模式识别 · 计算机科学 2022-03-23 Zehui Liao , Shishuai Hu , Yutong Xie , Yong Xia

Despite the remarkable performance of deep learning methods on various tasks, most cutting-edge models rely heavily on large-scale annotated training examples, which are often unavailable for clinical and health care tasks. The labeling…

计算机视觉与模式识别 · 计算机科学 2021-03-02 Jialin Peng , Ye Wang

Multi-atlas segmentation is a widely used tool in medical image analysis, providing robust and accurate results by learning from annotated atlas datasets. However, the availability of fully annotated atlas images for training is limited due…

计算机视觉与模式识别 · 计算机科学 2016-05-03 Lisa M. Koch , Martin Rajchl , Wenjia Bai , Christian F. Baumgartner , Tong Tong , Jonathan Passerat-Palmbach , Paul Aljabar , Daniel Rueckert

Information system designers face many challenges w.r.t. selecting appropriate semantic technologies and deciding on a modelling approach for their system. However, there is no clear methodology yet to evaluate "semantically enriched"…

多媒体 · 计算机科学 2010-12-10 Jasmin Opitz , Bijan Parsia , Ulrike Sattler

Natural language inference (NLI) aims at predicting the relationship between a given pair of premise and hypothesis. However, several works have found that there widely exists a bias pattern called annotation artifacts in NLI datasets,…

计算与语言 · 计算机科学 2019-10-08 Guanhua Zhang , Bing Bai , Junqi Zhang , Kun Bai , Conghui Zhu , Tiejun Zhao

Machine learning (ML) and artificial intelligence (AI) systems rely heavily on human-annotated data for training and evaluation. A major challenge in this context is the occurrence of annotation errors, as their effects can degrade model…

机器学习 · 计算机科学 2024-09-27 Heinrich Peters , Alireza Hashemi , James Rae

Generalization capability to unseen domains is crucial for machine learning models when deploying to real-world conditions. We investigate the challenging problem of domain generalization, i.e., training a model on multi-domain source data…

计算机视觉与模式识别 · 计算机科学 2019-10-31 Qi Dou , Daniel C. Castro , Konstantinos Kamnitsas , Ben Glocker

Human annotations are vital to supervised learning, yet annotators often disagree on the correct label, especially as annotation tasks increase in complexity. A strategy to improve label quality is to ask multiple annotators to label the…

机器学习 · 计算机科学 2023-12-22 Alexander Braylan , Madalyn Marabella , Omar Alonso , Matthew Lease

The work discusses the use of machine learning algorithms for anomaly detection in medical image analysis and how the performance of these algorithms depends on the number of annotators and the quality of labels. To address the issue of…

计算机视觉与模式识别 · 计算机科学 2023-03-30 Hieu H. Pham , Khiem H. Le , Tuan V. Tran , Ha Q. Nguyen

Medical image segmentation plays a crucial role in clinical workflows, but domain shift often leads to performance degradation when models are applied to unseen clinical domains. This challenge arises due to variations in imaging…

计算机视觉与模式识别 · 计算机科学 2025-08-01 Yingkai Wang , Yaoyao Zhu , Xiuding Cai , Yuhao Xiao , Haotian Wu , Yu Yao

In Computed Tomography, machine learning is often used for automated data processing. However, increasing model complexity is accompanied by increasingly large volume datasets, which in turn increases the cost of model training. Unlike most…

计算机视觉与模式识别 · 计算机科学 2023-03-27 Yaroslav Zharov , Tilo Baumbach , Vincent Heuveline

Clinical dataset labels are rarely certain as annotators disagree and confidence is not uniform across cases. Typical aggregation procedures, such as majority voting, obscure this variability. In simple experiments on medical imaging…

Due to the expensive costs of collecting labels in multi-label classification datasets, partially annotated multi-label classification has become an emerging field in computer vision. One baseline approach to this task is to assume…

计算机视觉与模式识别 · 计算机科学 2023-04-05 Youngwook Kim , Jae Myung Kim , Jieun Jeong , Cordelia Schmid , Zeynep Akata , Jungwoo Lee

In the field of image classification, existing methods often struggle with biased or ambiguous data, a prevalent issue in real-world scenarios. Current strategies, including semi-supervised learning and class blending, offer partial…

计算机视觉与模式识别 · 计算机科学 2024-04-30 Lars Schmarje , Vasco Grossmann , Claudius Zelenka , Johannes Brünger , Reinhard Koch

Scarcity of high quality annotated images remains a limiting factor for training accurate image segmentation models. While more and more annotated datasets become publicly available, the number of samples in each individual database is…

计算机视觉与模式识别 · 计算机科学 2021-07-14 Gregory Filbrandt , Konstantinos Kamnitsas , David Bernstein , Alexandra Taylor , Ben Glocker
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