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The real-world data distribution is essentially long-tailed, which poses great challenge to the deep model. In this work, we propose a new method, Gradual Balanced Loss and Adaptive Feature Generator (GLAG) to alleviate imbalance. GLAG…

Computer Vision and Pattern Recognition · Computer Science 2022-03-02 Zihan Zhang , Xiang Xiang

We propose SALT (Split-Adaptive Lightweight Tuning), a lightweight model adaptation framework for Split Computing under closed constraints, where the head and tail networks are proprietary and inaccessible to users. In such closed…

Machine Learning · Computer Science 2025-06-17 Yuya Okada , Takayuki Nishio

Federated learning (FL) has emerged as a promising paradigm for privacy-preserving distributed machine learning, but faces challenges with heterogeneous data distributions across clients. This paper presents FedSat, a novel FL approach…

Machine Learning · Computer Science 2024-12-31 Sujit Chowdhury , Raju Halder

Deep learning models benefit from training with a large dataset (labeled or unlabeled). Following this motivation, we present an approach to learn a deep learning model for the automatic segmentation of Organs at Risk (OARs) in cervical…

Image and Video Processing · Electrical Eng. & Systems 2023-02-22 Monika Grewal , Dustin van Weersel , Henrike Westerveld , Peter A. N. Bosman , Tanja Alderliesten

Medical image segmentation has played an important role in medical analysis and widely developed for many clinical applications. Deep learning-based approaches have achieved high performance in semantic segmentation but they are limited to…

Image and Video Processing · Electrical Eng. & Systems 2020-12-07 Ngan Le , Trung Le , Kashu Yamazaki , Toan Duc Bui , Khoa Luu , Marios Savides

With advances in digital technology, the classification of medical images has become a crucial step for image-based clinical decision support systems. Automatic medical image classification represents a pivotal domain where the use of AI…

Computer Vision and Pattern Recognition · Computer Science 2024-09-09 Abu Adnan Sadi , Labib Chowdhury , Nusrat Jahan , Mohammad Newaz Sharif Rafi , Radeya Chowdhury , Faisal Ahamed Khan , Nabeel Mohammed

Objective: Medical image datasets with pixel-level labels tend to have a limited number of organ or tissue label classes annotated, even when the images have wide anatomical coverage. With supervised learning, multiple classifiers are…

Deep learning has achieved remarkable accuracy in medical image segmentation, particularly for larger structures with well-defined boundaries. However, its effectiveness can be challenged by factors such as irregular object shapes and…

Image and Video Processing · Electrical Eng. & Systems 2025-10-27 Md Rakibul Islam , Riad Hassan , Abdullah Nazib , Kien Nguyen , Clinton Fookes , Md Zahidul Islam

Semi-supervised semantic segmentation learns a model for classifying pixels into specific classes using a few labeled samples and numerous unlabeled images. The recent leading approach is consistency regularization by selftraining with…

Computer Vision and Pattern Recognition · Computer Science 2023-03-22 Jingi Ju , Hyeoncheol Noh , Yooseung Wang , Minseok Seo , Dong-Geol Choi

Neural networks trained on real-world datasets with long-tailed label distributions are biased towards frequent classes and perform poorly on infrequent classes. The imbalance in the ratio of positive and negative samples for each class…

Computer Vision and Pattern Recognition · Computer Science 2021-05-25 Kevin Duarte , Yogesh S. Rawat , Mubarak Shah

Deep learning has achieved significant advancements in medical image segmentation, but existing models still face challenges in accurately segmenting lesion regions. The main reason is that some lesion regions in medical images have unclear…

Computer Vision and Pattern Recognition · Computer Science 2025-03-17 Lexin Fang , Yunyang Xu , Xiang Ma , Xuemei Li , Caiming Zhang

Surgical tool presence detection is an important part of the intra-operative and post-operative analysis of a surgery. State-of-the-art models, which perform this task well on a particular dataset, however, perform poorly when tested on…

Computer Vision and Pattern Recognition · Computer Science 2023-08-09 Jay N. Paranjape , Shameema Sikder , Vishal M. Patel , S. Swaroop Vedula

Robust loss functions are crucial for training deep neural networks in the presence of label noise, yet existing approaches require extensive, dataset-specific hyperparameter tuning. In this work, we introduce Fractional Classification Loss…

Machine Learning · Computer Science 2025-08-11 Mert Can Kurucu , Tufan Kumbasar , İbrahim Eksin , Müjde Güzelkaya

Class imbalance remains a significant challenge in machine learning, particularly for tabular data classification tasks. While Gradient Boosting Decision Trees (GBDT) models have proven highly effective for such tasks, their performance can…

Machine Learning · Computer Science 2024-07-22 Jiaqi Luo , Yuan Yuan , Shixin Xu

Recent studies have demonstrated the superior performance of introducing ``scan-wise" contrast labels into contrastive learning for multi-organ segmentation on multi-phase computed tomography (CT). However, such scan-wise labels are…

Computer Vision and Pattern Recognition · Computer Science 2022-10-18 Ho Hin Lee , Yucheng Tang , Han Liu , Yubo Fan , Leon Y. Cai , Qi Yang , Xin Yu , Shunxing Bao , Yuankai Huo , Bennett A. Landman

Due to the advantages of leveraging unlabeled data and learning meaningful representations, semi-supervised learning and contrastive learning have been progressively combined to achieve better performances in popular applications with few…

Computer Vision and Pattern Recognition · Computer Science 2023-12-27 Bowen Tao , Lan Li , Xin-Chun Li , De-Chuan Zhan

Recent studies have shown that, like traditional machine learning, federated learning (FL) is also vulnerable to adversarial attacks. To improve the adversarial robustness of FL, federated adversarial training (FAT) methods have been…

Machine Learning · Computer Science 2023-02-24 Chen Chen , Yuchen Liu , Xingjun Ma , Lingjuan Lyu

SplitFed Learning, a combination of Federated and Split Learning (FL and SL), is one of the most recent developments in the decentralized machine learning domain. In SplitFed learning, a model is trained by clients and a server…

Computer Vision and Pattern Recognition · Computer Science 2023-05-01 Zahra Hafezi Kafshgari , Chamani Shiranthika , Parvaneh Saeedi , Ivan V. Bajić

Federated learning (FL) presents an effective solution for collaborative model training while maintaining data privacy across decentralized client datasets. However, data quality issues such as noisy labels, missing classes, and imbalanced…

Machine Learning · Computer Science 2025-05-16 Alpaslan Gokcen , Ali Boyaci

Although binary classification is a well-studied problem, training reliable classifiers under severe class imbalance remains a challenge. Recent techniques mitigate the ill effects of imbalance on training by modifying the loss functions or…

Machine Learning · Computer Science 2024-10-07 Kelsey Lieberman , Swarna Kamlam Ravindran , Shuai Yuan , Carlo Tomasi