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This paper illustrates the central role of loss functions in data-driven decision making, providing a comprehensive survey on their influence in cost-sensitive classification (CSC) and reinforcement learning (RL). We demonstrate how…

机器学习 · 统计学 2025-04-07 Kaiwen Wang , Nathan Kallus , Wen Sun

Retinal vessel segmentation is an essential step for fundus image analysis. With the recent advances of deep learning technologies, many convolutional neural networks have been applied in this field, including the successful U-Net. In this…

图像与视频处理 · 电气工程与系统科学 2019-11-11 Weilin Fu , Katharina Breininger , Zhaoya Pan , Andreas Maier

We present the Tamed Cross Entropy (TCE) loss function, a robust derivative of the standard Cross Entropy (CE) loss used in deep learning for classification tasks. However, unlike other robust losses, the TCE loss is designed to exhibit the…

机器学习 · 计算机科学 2018-10-12 Manuel Martinez , Rainer Stiefelhagen

Pancreatic cancer, which has a low survival rate, is one of the most challenging cancers to diagnose and treat effectively. Early detection through abdominal computed tomography (CT) scans is crucial, yet complicated by the pancreas'…

图像与视频处理 · 电气工程与系统科学 2025-07-18 Xubei Zhang , Mikhail Y. Shalaginov , Tingying Helen Zeng

Diabetic retinopathy (DR) is a leading cause of vision loss, requiring early and accurate assessment to prevent irreversible damage. Spectral Domain Optical Coherence Tomography (SD-OCT) enables high-resolution retinal imaging, but…

图像与视频处理 · 电气工程与系统科学 2025-07-15 S. Chen , D. Ma , M. Raviselvan , S. Sundaramoorthy , K. Popuri , M. J. Ju , M. V. Sarunic , D. Ratra , M. F. Beg

Up-to-date sea ice charts are crucial for safer navigation in ice-infested waters. Recently, Convolutional Neural Network (CNN) models show the potential to accelerate the generation of ice maps for large regions. However, results from CNN…

计算机视觉与模式识别 · 计算机科学 2023-10-27 Rafael Pires de Lima , Behzad Vahedi , Morteza Karimzadeh

Early diagnosis of retinal diseases such as diabetic retinopathy has had the attention of many researchers. Deep learning through the introduction of convolutional neural networks has become a prominent solution for image-related tasks such…

图像与视频处理 · 电气工程与系统科学 2022-10-19 Pranjal Bhardwaj , Prajjwal Gupta , Thejineaswar Guhan , Kathiravan Srinivasan

The loss function is a key component in deep learning models. A commonly used loss function for classification is the cross entropy loss, which is a simple yet effective application of information theory for classification problems. Based…

计算机视觉与模式识别 · 计算机科学 2020-10-13 Zeyu Song , Dongliang Chang , Zhanyu Ma , Xiaoxu Li , Zheng-Hua Tan

Loss functions are error metrics that quantify the difference between a prediction and its corresponding ground truth. Fundamentally, they define a functional landscape for traversal by gradient descent. Although numerous loss functions…

图像与视频处理 · 电气工程与系统科学 2021-04-09 Chaitanya Kaul , Nick Pears , Hang Dai , Roderick Murray-Smith , Suresh Manandhar

Many NLP tasks such as tagging and machine reading comprehension are faced with the severe data imbalance issue: negative examples significantly outnumber positive examples, and the huge number of background examples (or easy-negative…

计算与语言 · 计算机科学 2020-09-01 Xiaoya Li , Xiaofei Sun , Yuxian Meng , Junjun Liang , Fei Wu , Jiwei Li

In neural networks, the loss function represents the core of the learning process that leads the optimizer to an approximation of the optimal convergence error. Convolutional neural networks (CNN) use the loss function as a supervisory…

计算机视觉与模式识别 · 计算机科学 2020-09-30 Riccardo La Grassa , Ignazio Gallo , Nicola Landro

In the last 15 years, the segmentation of vessels in retinal images has become an intensively researched problem in medical imaging, with hundreds of algorithms published. One of the de facto benchmarking data sets of vessel segmentation…

图像与视频处理 · 电气工程与系统科学 2021-11-09 György Kovács , Attila Fazekas

Ocular Myasthenia Gravis (OMG) is a rare and challenging disease to detect in its early stages, but symptoms often first appear in the eye muscles, such as drooping eyelids and double vision. Ocular images can be used for early diagnosis by…

计算机视觉与模式识别 · 计算机科学 2024-11-04 Ruiyu Xia , Jianqiang Li , Xi Xu , Guanghui Fu

Nowadays, deep-learning image coding solutions have shown similar or better compression efficiency than conventional solutions based on hand-crafted transforms and spatial prediction techniques. These deep-learning codecs require a large…

多媒体 · 计算机科学 2023-11-13 Shima Mohammadi , Joao Ascenso

The segmentation of retinal vessels is of significance for doctors to diagnose the fundus diseases. However, existing methods have various problems in the segmentation of the retinal vessels, such as insufficient segmentation of retinal…

计算机视觉与模式识别 · 计算机科学 2018-05-14 Yun Jiang , Ning Tan

Segmentation of medical images is a fundamental task with numerous applications. While MRI, CT, and PET modalities have significantly benefited from deep learning segmentation techniques, more recent modalities, like functional ultrasound…

图像与视频处理 · 电气工程与系统科学 2025-07-24 Hana Sebia , Thomas Guyet , Mickaël Pereira , Marco Valdebenito , Hugues Berry , Benjamin Vidal

In many medical imaging and classical computer vision tasks, the Dice score and Jaccard index are used to evaluate the segmentation performance. Despite the existence and great empirical success of metric-sensitive losses, i.e. relaxations…

图像与视频处理 · 电气工程与系统科学 2020-10-27 Tom Eelbode , Jeroen Bertels , Maxim Berman , Dirk Vandermeulen , Frederik Maes , Raf Bisschops , Matthew B. Blaschko

Automatic blood vessel segmentation from retinal images plays an important role in the diagnosis of many systemic and eye diseases, including retinopathy of prematurity. Current state-of-the-art research in blood vessel segmentation from…

图像与视频处理 · 电气工程与系统科学 2023-06-21 Gorana Gojić , Veljko Petrović , Radovan Turović , Dinu Dragan , Ana Oros , Dušan Gajić , Nebojša Horvat

Deep learning approaches may help radiologists in the early diagnosis and timely treatment of cerebrovascular diseases. Accurate cerebral vessel segmentation of Time-of-Flight Magnetic Resonance Angiographs (TOF-MRAs) is an essential step…

图像与视频处理 · 电气工程与系统科学 2021-01-25 V. de Vos , K. M. Timmins , I. C. van der Schaaf , Y. Ruigrok , B. K. Velthuis , H. J. Kuijf

Accurate multi-class segmentation is a long-standing challenge in medical imaging, especially in scenarios where classes share strong similarity. Segmenting retinal blood vessels in retinal photographs is one such scenario, in which…

图像与视频处理 · 电气工程与系统科学 2021-12-10 Yukun Zhou , Moucheng Xu , Yipeng Hu , Hongxiang Lin , Joseph Jacob , Pearse A. Keane , Daniel C. Alexander