Results 11 to 20 of about 154,181 (262)

Navigating extreme class imbalance in suicide risk prediction [PDF]

open access: yesFrontiers in Psychiatry
BackgroundThe implementation of suicide risk models is challenging because the conditions in which they are developed often do not reflect those in which they are being used.
Christopher Kitchen   +7 more
doaj   +2 more sources

Optimizing Class Imbalance in Facial Expression Recognition Using Dynamic Intra-Class Clustering [PDF]

open access: yesBiomimetics
While deep neural networks demonstrate robust performance in visual tasks, the long-tail distribution of real-world data leads to significant recognition accuracy degradation in critical scenarios such as medical human–robot affective interaction ...
Qingdu Li   +8 more
doaj   +2 more sources

A novel generative adversarial networks modelling for the class imbalance problem in high dimensional omics data [PDF]

open access: yesBMC Medical Informatics and Decision Making
Class imbalance remains a large problem in high-throughput omics analyses, causing bias towards the over-represented class when training machine learning-based classifiers.
Samuel Cusworth   +2 more
doaj   +2 more sources

Experimental Comparison of Classification Methods under Class Imbalance [PDF]

open access: yesEAI Endorsed Transactions on Scalable Information Systems, 2021
The class imbalance problem is prevalent in many domains including medical, natural language processing, image recognition, economic and geographic areas etc.
Hui Chen, Mengru Ji
doaj   +1 more source

Class Imbalance Learning [PDF]

open access: yesAdvanced Computing and Communications, 2017
Data classification task assigns labels to data points using a model that is learned from a collection of pre-labeled data points. The Class Imbalance Learning (CIL) problem is concerned with the performance of classification algorithms in the presence of under-represented data and severe class distribution skews.
Sudarsun Santhiappan   +1 more
openaire   +1 more source

Addressing Class Imbalance in Federated Learning

open access: yesProceedings of the AAAI Conference on Artificial Intelligence, 2021
Federated learning (FL) is a promising approach for training decentralized data located on local client devices while improving efficiency and privacy. However, the distribution and quantity of the training data on the clients' side may lead to significant challenges such as class imbalance and non-IID (non-independent and identically distributed) data,
Lixu Wang   +3 more
openaire   +2 more sources

Impact of class distribution on the detection of slow HTTP DoS attacks using Big Data

open access: yesJournal of Big Data, 2019
The integrity of modern network communications is constantly being challenged by more sophisticated intrusion techniques. Attackers are consistently shifting to stealthier and more complex forms of attacks in an attempt to bypass known mitigation ...
Chad L. Calvert, Taghi M. Khoshgoftaar
doaj   +1 more source

Multi-fairness Under Class-Imbalance

open access: yes, 2022
Recent studies showed that datasets used in fairness-aware machine learning for multiple protected attributes (referred to as multi-discrimination hereafter) are often imbalanced. The class-imbalance problem is more severe for the often underrepresented protected group (e.g. female, non-white, etc.) in the critical minority class.
Arjun Roy 0001   +2 more
openaire   +2 more sources

A Survey on Class Imbalance in Federated Learning

open access: yesCoRR, 2023
Federated learning, which allows multiple client devices in a network to jointly train a machine learning model without direct exposure of clients' data, is an emerging distributed learning technique due to its nature of privacy preservation. However, it has been found that models trained with federated learning usually have worse performance than ...
Jing Zhang   +3 more
openaire   +2 more sources

Measuring the class-imbalance extent of multi-class problems [PDF]

open access: yesPattern Recognition Letters, 2017
TIN2013-41272P, IT609-13, AP2008 ...
Jonathan Ortigosa-Hernández   +2 more
openaire   +2 more sources

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