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Wireless signal recognition is becoming increasingly more significant for spectrum monitoring, spectrum management, and secure communications. Consequently, it will become a key enabler with the emerging fifth-generation (5G) and beyond 5G…

机器学习 · 计算机科学 2021-02-23 Anu Jagannath , Jithin Jagannath

One main challenge in imbalanced graph classification is to learn expressive representations of the graphs in under-represented (minority) classes. Existing generic imbalanced learning methods, such as oversampling and imbalanced learning…

机器学习 · 计算机科学 2024-05-20 Rongrong Ma , Guansong Pang , Ling Chen

Many real-world data are sequentially collected over time and often exhibit skewed class distributions, resulting in imbalanced data streams. While existing approaches have explored several strategies, such as resampling and reweighting,…

机器学习 · 计算机科学 2025-08-18 Han Zhou , Hongpeng Yin , Xuanhong Deng , Yuyu Huang , Hao Ren

To address the modality imbalance caused by data heterogeneity, existing multi-modal learning (MML) approaches primarily focus on balancing this difference from the perspective of optimization objectives. However, almost all existing…

机器学习 · 计算机科学 2025-01-06 Zhi-Hao Guan

The computer vision community is witnessing an unprecedented rate of new tasks being proposed and addressed, thanks to the deep convolutional networks' capability to find complex mappings from X to Y. The advent of each task often…

计算机视觉与模式识别 · 计算机科学 2020-02-11 Junnan Li , Ziwei Xu , Yongkang Wong , Qi Zhao , Mohan Kankanhalli

Noises, artifacts, and loss of information caused by the magnetic resonance (MR) reconstruction may compromise the final performance of the downstream applications. In this paper, we develop a re-weighted multi-task deep learning method to…

计算机视觉与模式识别 · 计算机科学 2020-11-30 Kehan Qi , Yu Gong , Xinfeng Liu , Xin Liu , Hairong Zheng , Shanshan Wang

Label Distribution Learning (LDL) is a novel machine learning paradigm that addresses the problem of label ambiguity and has found widespread applications. Obtaining complete label distributions in real-world scenarios is challenging, which…

机器学习 · 计算机科学 2024-10-18 Zhiqiang Kou , Haoyuan Xuan , Jing Wang , Yuheng Jia , Xin Geng

To address the modality learning degeneration caused by modality imbalance, existing multimodal learning~(MML) approaches primarily attempt to balance the optimization process of each modality from the perspective of model learning.…

机器学习 · 计算机科学 2025-03-07 Qingyuan Jiang , Zhouyang Chi , Xiao Ma , Qirong Mao , Yang Yang , Jinhui Tang

Despite the promise of Multi-Task Learning in leveraging complementary knowledge across tasks, existing multi-task optimization (MTO) techniques remain fixated on resolving conflicts via optimizer-centric loss scaling and gradient…

机器学习 · 计算机科学 2025-07-29 Zedong Wang , Siyuan Li , Dan Xu

Clinicians usually combine information from multiple sources to achieve the most accurate diagnosis, and this has sparked increasing interest in leveraging multimodal deep learning for diagnosis. However, in real clinical scenarios, due to…

计算机视觉与模式识别 · 计算机科学 2025-08-05 Kai Han , Chongwen Lyu , Lele Ma , Chengxuan Qian , Siqi Ma , Zheng Pang , Jun Chen , Zhe Liu

Multitask learning (MTL) aims to learn multiple tasks simultaneously through the interdependence between different tasks. The way to measure the relatedness between tasks is always a popular issue. There are mainly two ways to measure…

机器学习 · 计算机科学 2019-04-04 Ya Li , Xinmei Tian , Tongliang Liu , Dacheng Tao

Multi-Task Learning has emerged as a methodology in which multiple tasks are jointly learned by a shared learning algorithm, such as a DNN. MTL is based on the assumption that the tasks under consideration are related; therefore it exploits…

计算机视觉与模式识别 · 计算机科学 2021-05-11 Dimitrios Kollias , Viktoriia Sharmanska , Stefanos Zafeiriou

Multi-task learning (MTL) is a powerful machine learning paradigm designed to leverage shared knowledge across tasks to improve generalization and performance. Previous works have proposed approaches to MTL that can be divided into feature…

机器学习 · 计算机科学 2024-06-13 Paolo Bonetti , Alberto Maria Metelli , Marcello Restelli

Class imbalance poses a significant challenge in classification tasks, where traditional approaches often lead to biased models and unreliable predictions. Undersampling and oversampling techniques have been commonly employed to address…

Traditionally, multitask learning (MTL) assumes that all the tasks are related. This can lead to negative transfer when tasks are indeed incoherent. Recently, a number of approaches have been proposed that alleviate this problem by…

机器学习 · 计算机科学 2012-06-22 Wenliang Zhong , James Kwok

Multi-task learning solves multiple correlated tasks. However, conflicts may exist between them. In such circumstances, a single solution can rarely optimize all the tasks, leading to performance trade-offs. To arrive at a set of optimized…

人工智能 · 计算机科学 2024-03-26 Lu Bai , Abhishek Gupta , Yew-Soon Ong

Deep convolutional neural networks have made significant breakthroughs in medical image classification, under the assumption that training samples from all classes are simultaneously available. However, in real-world medical scenarios,…

计算机视觉与模式识别 · 计算机科学 2024-07-23 Xuze Hao , Wenqian Ni , Xuhao Jiang , Weimin Tan , Bo Yan

A key element of any machine learning algorithm is the use of a function that measures the dis/similarity between data points. Given a task, such a function can be optimized with a metric learning algorithm. Although this research field has…

机器学习 · 统计学 2019-09-05 Léo Gautheron , Emilie Morvant , Amaury Habrard , Marc Sebban

Multi-Task Learning (MTL) is designed to train multiple correlated tasks simultaneously, thereby enhancing the performance of individual tasks. Typically, a multi-task network structure consists of a shared backbone and task-specific…

计算机视觉与模式识别 · 计算机科学 2023-12-15 Yi Xin , Junlong Du , Qiang Wang , Ke Yan , Shouhong Ding

Learning classifiers using skewed or imbalanced datasets can occasionally lead to classification issues; this is a serious issue. In some cases, one class contains the majority of examples while the other, which is frequently the more…

机器学习 · 计算机科学 2022-11-11 Satyendra Singh Rawat , Amit Kumar Mishra