Results 1 to 10 of about 98,302 (162)

Imbalanced SVM‐Based Anomaly Detection Algorithm for Imbalanced Training Datasets [PDF]

open access: yesETRI Journal, 2017
Abnormal samples are usually difficult to obtain in production systems, resulting in imbalanced training sample sets. Namely, the number of positive samples is far less than the number of negative samples.
GuiPing Wang, JianXi Yang, Ren Li
doaj   +2 more sources

An Asymmetric Contrastive Loss for Handling Imbalanced Datasets [PDF]

open access: yesEntropy, 2022
Contrastive learning is a representation learning method performed by contrasting a sample to other similar samples so that they are brought closely together, forming clusters in the feature space.
Valentino Vito, Lim Yohanes Stefanus
doaj   +2 more sources

Distribution-sensitive learning for imbalanced datasets [PDF]

open access: yes2013 10th IEEE International Conference and Workshops on Automatic Face and Gesture Recognition (FG), 2013
Many real-world face and gesture datasets are by nature imbalanced across classes. Conventional statistical learning models (e.g., SVM, HMM, CRY), however, are sensitive to imbalanced datasets.
Davis, Randall   +2 more
core   +5 more sources

Adaptive Age Estimation towards Imbalanced Datasets

open access: yesApplied Sciences, 2023
Current age estimation datasets often have a skewed long-tail distribution with significant data imbalance, rather than an ideal uniform distribution for each category.
Zhiang Dong, Xiaoqiang Li
doaj   +2 more sources

A Boundary-Information-Based Oversampling Approach to Improve Learning Performance for Imbalanced Datasets [PDF]

open access: yesEntropy, 2022
Oversampling is the most popular data preprocessing technique. It makes traditional classifiers available for learning from imbalanced data. Through an overall review of oversampling techniques (oversamplers), we find that some of them can be regarded as
Der-Chiang Li   +3 more
doaj   +2 more sources

Impact of imbalanced features on large datasets

open access: yesFrontiers in Big Data
The exponential growth of image and video data motivates the need for practical real-time content-based searching algorithms. Features play a vital role in identifying objects within images.
Waleed Albattah, Rehan Ullah Khan
doaj   +3 more sources

Handling imbalanced datasets through Optimum-Path Forest [PDF]

open access: yesKnowledge-Based Systems, 2022
In the last decade, machine learning-based approaches became capable of performing a wide range of complex tasks sometimes better than humans, demanding a fraction of the time. Such an advance is partially due to the exponential growth in the amount of data available, which makes it possible to extract trustworthy real-world information from them ...
Leandro Aparecido Passos   +5 more
openaire   +3 more sources

A Multi-Schematic Classifier-Independent Oversampling Approach for Imbalanced Datasets

open access: yesIEEE Access, 2021
Labelled imbalanced data, used for classification problems, have an unequal distribution of samples over the classes. Traditional classification models, such as random forest, gradient boosting, face a problem when dealing with imbalanced datasets.
Saptarshi Bej   +4 more
doaj   +1 more source

Probability-Based Synthetic Minority Oversampling Technique

open access: yesIEEE Access, 2023
Many real-life datasets suffer from class imbalance, where one or more classes are under-represented in the dataset, resulting in reduced classifier performance, with the expected decline in quality of procedures depending on the classification results ...
Najwa Altwaijry
doaj   +1 more source

Single-Point Crossover and Jellyfish Optimization for Handling Imbalanced Data Classification Problem

open access: yesIEEE Access, 2022
The imbalanced datasets and their classification has pulled in as a hot research topic over the years. It is used in different fields, for example, security, finance, health, and many others.
Abeer S. Desuky   +4 more
doaj   +1 more source

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