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Accurate detection and segmentation of cancerous lesions from computed tomography (CT) scans is essential for automated treatment planning and cancer treatment response assessment. Transformer-based models with self-supervised pretraining…

图像与视频处理 · 电气工程与系统科学 2026-01-29 Aneesh Rangnekar , Harini Veeraraghavan

Integrating supervised contrastive loss to cross entropy-based communication has recently been proposed as a solution to address the long-tail learning problem. However, when the class imbalance ratio is high, it requires adjusting the…

机器学习 · 计算机科学 2024-07-10 Charika De Alvis , Dishanika Denipitiyage , Suranga Seneviratne

Class distribution plays an important role in learning deep classifiers. When the proportion of each class in the test set differs from the training set, the performance of classification nets usually degrades. Such a label distribution…

图像与视频处理 · 电气工程与系统科学 2022-07-12 Wenao Ma , Cheng Chen , Shuang Zheng , Jing Qin , Huimao Zhang , Qi Dou

Solving long-tail large vocabulary object detection with deep learning based models is a challenging and demanding task, which is however under-explored.In this work, we provide the first systematic analysis on the underperformance of…

计算机视觉与模式识别 · 计算机科学 2020-06-20 Yu Li , Tao Wang , Bingyi Kang , Sheng Tang , Chunfeng Wang , Jintao Li , Jiashi Feng

Training data for class-conditional image synthesis often exhibit a long-tailed distribution with limited images for tail classes. Such an imbalance causes mode collapse and reduces the diversity of synthesized images for tail classes. For…

计算机视觉与模式识别 · 计算机科学 2025-10-28 Fang Chen , Alex Villa , Gongbo Liang , Xiaoyi Lu , Meng Tang

In this work, we tackle the challenging problem of long-tailed image recognition. Previous long-tailed recognition approaches mainly focus on data augmentation or re-balancing strategies for the tail classes to give them more attention…

计算机视觉与模式识别 · 计算机科学 2023-09-15 Weide Liu , Zhonghua Wu , Yiming Wang , Henghui Ding , Fayao Liu , Jie Lin , Guosheng Lin

Anomaly detection is crucial in industrial applications for identifying rare and unseen patterns to ensure system reliability. Traditional models, trained on a single class of normal data, struggle with real-world distributions where normal…

机器学习 · 统计学 2026-01-07 Jungi Lee , Jungkwon Kim , Chi Zhang , Sangmin Kim , Kwangsun Yoo , Seok-Joo Byun

Learning with noisy labels has gained increasing attention because the inevitable imperfect labels in real-world scenarios can substantially hurt the deep model performance. Recent studies tend to regard low-loss samples as clean ones and…

机器学习 · 计算机科学 2024-02-20 Huafeng Liu , Mengmeng Sheng , Zeren Sun , Yazhou Yao , Xian-Sheng Hua , Heng-Tao Shen

Conventional detectors suffer from performance degradation when dealing with long-tailed data due to a classification bias towards the majority head categories. In this paper, we contend that the learning bias originates from two factors:…

计算机视觉与模式识别 · 计算机科学 2023-08-07 Tianhao Qi , Hongtao Xie , Pandeng Li , Jiannan Ge , Yongdong Zhang

Deep learning-based computer-aided diagnosis has achieved unprecedented performance in breast cancer detection. However, most approaches are computationally intensive, which impedes their broader dissemination in real-world applications. In…

图像与视频处理 · 电气工程与系统科学 2022-01-14 Jiaqiao Shi , Aleksandar Vakanski , Min Xian , Jianrui Ding , Chunping Ning

Most of the current state-of-the-art methods for tumor segmentation are based on machine learning models trained on manually segmented images. This type of training data is particularly costly, as manual delineation of tumors is not only…

计算机视觉与模式识别 · 计算机科学 2019-08-21 Pawel Mlynarski , Hervé Delingette , Antonio Criminisi , Nicholas Ayache

Classification on long-tailed distributed data is a challenging problem, which suffers from serious class-imbalance and hence poor performance on tail classes with only a few samples. Owing to this paucity of samples, learning on the tail…

计算与语言 · 计算机科学 2022-07-25 Taha ValizadehAslani , Yiwen Shi , Jing Wang , Ping Ren , Yi Zhang , Meng Hu , Liang Zhao , Hualou Liang

Several deep learning algorithms have been developed to predict survival of cancer patients using whole slide images (WSIs).However, identification of image phenotypes within the WSIs that are relevant to patient survival and disease…

图像与视频处理 · 电气工程与系统科学 2022-11-30 Xingyu Li , Jitendra Jonnagaddala , Min Cen , Hong Zhang , Xu Steven Xu

Skin image datasets often suffer from imbalanced data distribution, exacerbating the difficulty of computer-aided skin disease diagnosis. Some recent works exploit supervised contrastive learning (SCL) for this long-tailed challenge.…

计算机视觉与模式识别 · 计算机科学 2023-07-11 Yilan Zhang , Jianqi Chen , Ke Wang , Fengying Xie

We propose a method to incorporate the intensity information of a target lesion on CT scans in training segmentation and detection networks. We first build an intensity-based lesion probability (ILP) function from an intensity histogram of…

图像与视频处理 · 电气工程与系统科学 2023-07-13 Seung Yeon Shin , Thomas C. Shen , Ronald M. Summers

Deep learning (DL) models for disease classification or segmentation from medical images are increasingly trained using transfer learning (TL) from unrelated natural world images. However, shortcomings and utility of TL for specialized…

机器学习 · 统计学 2021-11-11 Sambuddha Ghosal , Pratik Shah

Benchmark datasets for visual recognition assume that data is uniformly distributed, while real-world datasets obey long-tailed distribution. Current approaches handle the long-tailed problem to transform the long-tailed dataset to uniform…

计算机视觉与模式识别 · 计算机科学 2022-04-25 Renhui Zhang , Tiancheng Lin , Rui Zhang , Yi Xu

Long-tailed instance segmentation is a challenging task due to the extreme imbalance of training samples among classes. It causes severe biases of the head classes (with majority samples) against the tailed ones. This renders "how to…

计算机视觉与模式识别 · 计算机科学 2022-04-05 Yin-Yin He , Peizhen Zhang , Xiu-Shen Wei , Xiangyu Zhang , Jian Sun

Deep learning has achieved unprecedented success in various object detection tasks with huge amounts of labeled data. However, obtaining large-scale annotations for medical images is extremely challenging due to the high demand of labour…

图像与视频处理 · 电气工程与系统科学 2022-03-21 Zhizhong Chai , Luyang Luo , Huangjing Lin , Hao Chen , Anjia Han , Pheng-Ann Heng

Mitotic counting is a vital prognostic marker of tumor proliferation in breast cancer. Deep learning-based mitotic detection is on par with pathologists, but it requires large labeled data for training. We propose a deep classification…

计算机视觉与模式识别 · 计算机科学 2020-07-03 Pushpak Pati , Antonio Foncubierta-Rodriguez , Orcun Goksel , Maria Gabrani