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Class-Incremental Learning (CIL) trains a model to continually recognize new classes from non-stationary data while retaining learned knowledge. A major challenge of CIL arises when applying to real-world data characterized by non-uniform…

计算机视觉与模式识别 · 计算机科学 2024-04-02 Jiangpeng He , Fengqing Zhu

Federated learning (FL) is emerging as a promising technique for collaborative learning without local data leaving their devices. However, clients' data originating from diverse domains may degrade model performance due to domain shifts,…

计算机视觉与模式识别 · 计算机科学 2025-03-18 Zheng Wang , Zihui Wang , Zheng Wang , Xiaoliang Fan , Cheng Wang

Our paper addresses the problem of models struggling to learn diverse features, due to either forgetting previously learned features or failing to learn new ones. To overcome this problem, we introduce Diverse Feature Learning (DFL), a…

人工智能 · 计算机科学 2024-04-01 Sejik Park

Class-incremental learning (CIL) has emerged as a means to learn new classes incrementally without catastrophic forgetting of previous classes. Recently, CIL has undergone a paradigm shift towards dynamic architectures due to their superior…

计算机视觉与模式识别 · 计算机科学 2024-05-15 Sunyuan Qiang , Yanyan Liang , Jun Wan , Du Zhang

The accuracy of deep learning methods for two foundational tasks in medical image analysis -- detection and segmentation -- can suffer from class imbalance. We propose a `switching loss' function that adaptively shifts the emphasis between…

图像与视频处理 · 电气工程与系统科学 2020-08-11 Deepak Anand , Gaurav Patel , Yaman Dang , Amit Sethi

Deep Neural Networks are often brittle on image classification tasks and known to misclassify inputs. While these misclassifications may be inevitable, all failure modes cannot be considered equal. Certain misclassifications (eg.…

机器学习 · 计算机科学 2021-11-03 Alberto Olmo , Sailik Sengupta , Subbarao Kambhampati

Federated learning (FL) is an emerging distributed machine learning paradigm enabling collaborative model training on decentralized devices without exposing their local data. A key challenge in FL is the uneven data distribution across…

分布式、并行与集群计算 · 计算机科学 2024-03-08 Md Sirajul Islam , Simin Javaherian , Fei Xu , Xu Yuan , Li Chen , Nian-Feng Tzeng

Decentralized federated learning (DFL) captures FL settings where both (i) model updates and (ii) model aggregations are exclusively carried out by the clients without a central server. Existing DFL works have mostly focused on settings…

We explore loss functions for fact verification in the FEVER shared task. While the cross-entropy loss is a standard objective for training verdict predictors, it fails to capture the heterogeneity among the FEVER verdict classes. In this…

计算与语言 · 计算机科学 2024-03-14 Yuta Mukobara , Yutaro Shigeto , Masashi Shimbo

In scoring systems used to measure the endoscopic activity of ulcerative colitis, such as Mayo endoscopic score or Ulcerative Colitis Endoscopic Index Severity, levels increase with severity of the disease activity. Such relative ranking…

图像与视频处理 · 电气工程与系统科学 2022-06-14 Gorkem Polat , Ilkay Ergenc , Haluk Tarik Kani , Yesim Ozen Alahdab , Ozlen Atug , Alptekin Temizel

Active learning (AL) has achieved great success by selecting the most valuable examples from unlabeled data. However, they usually deteriorate in real scenarios where open-set noise gets involved, which is studied as open-set annotation…

人工智能 · 计算机科学 2024-09-27 Ye-Wen Wang , Chen-Chen Zong , Ming-Kun Xie , Sheng-Jun Huang

Deep learning-based models generalize better to unknown data samples after being guided "where to look" by incorporating human perception into training strategies. We made an observation that the entropy of the model's salience trained in…

计算机视觉与模式识别 · 计算机科学 2023-03-03 Jacob Piland , Adam Czajka , Christopher Sweet

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…

机器学习 · 计算机科学 2024-12-31 Sujit Chowdhury , Raju Halder

Federated learning (FL) refers to the learning paradigm that trains machine learning models directly in the decentralized systems consisting of smart edge devices without transmitting the raw data, which avoids the heavy communication costs…

机器学习 · 计算机科学 2020-12-17 Xin Yao , Lifeng Sun

Under distribution shift (DS) where the training data distribution differs from the test one, a powerful technique is importance weighting (IW) which handles DS in two separate steps: weight estimation (WE) estimates the test-over-training…

机器学习 · 计算机科学 2020-11-06 Tongtong Fang , Nan Lu , Gang Niu , Masashi Sugiyama

Supervised Fine-Tuning (SFT) followed by Reinforcement Learning (RL) has emerged as the standard post-training paradigm for large language models (LLMs). However, the conventional SFT process, driven by Cross-Entropy (CE) loss, often…

计算与语言 · 计算机科学 2026-02-10 Yijie Chen , Yijin Liu , Fandong Meng

In this paper, we propose mean squared error (MSE) loss with outlying label for class imbalanced classification. Cross entropy (CE) loss, which is widely used for image recognition, is learned so that the probability value of true class is…

计算机视觉与模式识别 · 计算机科学 2021-07-07 Sota Kato , Kazuhiro Hotta

Intelligent diagnosis method based on data-driven and deep learning is an attractive and meaningful field in recent years. However, in practical application scenarios, the imbalance of time-series fault is an urgent problem to be solved.…

机器学习 · 计算机科学 2021-07-15 Xingtai Gui , Jiyang Zhang

Federated learning has gained popularity as a means of training models distributed across the wireless edge. The paper introduces delay-aware hierarchical federated learning (DFL) to improve the efficiency of distributed machine learning…

机器学习 · 计算机科学 2023-09-29 Frank Po-Chen Lin , Seyyedali Hosseinalipour , Nicolò Michelusi , Christopher Brinton

Federated learning (FL) offers a solution to train a global machine learning model while still maintaining data privacy, without needing access to data stored locally at the clients. However, FL suffers performance degradation when client…

机器学习 · 计算机科学 2021-08-13 Zihan Chen , Kai Fong Ernest Chong , Tony Q. S. Quek