Results 21 to 30 of about 141,868 (281)

Active Learning for Imbalanced Ordinal Regression [PDF]

open access: yesIEEE Access, 2020
Ordinal regression (OR), also called ordinal classification, is a special multi-classification designed for problems with ordered classes. Imbalanced data hinders the performance of classification algorithms, especially for OR algorithms, as imbalanced class distributions often arise in OR problems.
Jiaming Ge   +4 more
openaire   +2 more sources

Imbalanced Learning Based on Logistic Discrimination. [PDF]

open access: yesComput Intell Neurosci, 2016
In recent years, imbalanced learning problem has attracted more and more attentions from both academia and industry, and the problem is concerned with the performance of learning algorithms in the presence of data with severe class distribution skews. In this paper, we apply the well-known statistical model logistic discrimination to this problem and ...
Guo H, Zhi W, Liu H, Xu M.
europepmc   +4 more sources

Optimizing imbalanced learning with genetic algorithm. [PDF]

open access: yesSci Rep
Training AI models on imbalanced datasets with skewed class distributions poses a significant challenge, as it leads to model bias towards the majority class while neglecting the minority class. Various methods, such as Synthetic Minority Over Sampling Technique (SMOTE), Adaptive Synthetic Sampling (ADASYN), Generative Adversarial Networks (GANs) and ...
Safder MU   +4 more
europepmc   +4 more sources

Blending Query Strategy of Active Learning for Imbalanced Data

open access: yesIEEE Access, 2022
When the data is imbalanced, often observed in the real-world, important minor class instances that are conducive to accurately predicting the decision boundary are less likely to be queried in the active learning for classification task.
Gwangsu Kim, Chang D. Yoo
doaj   +1 more source

Toward a Balanced Feature Space for the Deep Imbalanced Regression

open access: yesIEEE Access, 2023
Regression with imbalanced data has been regarded as a more realistic scenario due to the difficulty of data acquisition and label annotations. However, it has not been extensively studied compared to the imbalanced classification.
Jangho Lee
doaj   +1 more source

Hellinger Distance Trees for Imbalanced Streams [PDF]

open access: yes, 2014
Classifiers trained on data sets possessing an imbalanced class distribution are known to exhibit poor generalisation performance. This is known as the imbalanced learning problem.
Brooke, J. M.   +3 more
core   +2 more sources

Evolutionary deep belief networks with bootstrap sampling for imbalanced class datasets

open access: yesIJAIN (International Journal of Advances in Intelligent Informatics), 2019
Imbalanced class data is a common issue faced in classification tasks. Deep Belief Networks (DBN) is a promising deep learning algorithm when learning from complex feature input.
A’inur A’fifah Amri   +2 more
doaj   +1 more source

A Cost-Sensitive Ensemble Method for Class-Imbalanced Datasets

open access: yesAbstract and Applied Analysis, 2013
In imbalanced learning methods, resampling methods modify an imbalanced dataset to form a balanced dataset. Balanced data sets perform better than imbalanced datasets for many base classifiers.
Yong Zhang, Dapeng Wang
doaj   +1 more source

Tackling the Problem of Class Imbalance in Multi-class Sentiment Classification: An Experimental Study

open access: yesFoundations of Computing and Decision Sciences, 2019
Sentiment classification is an important task which gained extensive attention both in academia and in industry. Many issues related to this task such as handling of negation or of sarcastic utterances were analyzed and accordingly addressed in previous ...
Lango Mateusz
doaj   +1 more source

An Imbalanced R-STDP Learning Rule in Spiking Neural Networks for Medical Image Classification

open access: yesIEEE Access, 2020
Spiking neural networks (SNNs) have the advantages of inherent power-efficiency, biological plausibility and good image recognition performance. They are good candidates for medical image classification especially when the labeled training data are ...
Qian Zhou, Cong Ren, Saibing Qi
doaj   +1 more source

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