Results 41 to 50 of about 36,115 (166)

Oversampling Expansion in Wavelet Subspaces

open access: yesIEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, 2011
We find necessary and sufficient conditions for the (shifted) oversampling expansions to hold in wavelet subspaces. In particular, we characterize scaling functions with the (shifted) oversampling property. We also obtain L2 and L∞ norm estimates for the truncation and aliasing errors of the oversampling expansion.
Kwon, KH Kwon, Kil Hyun   +1 more
openaire   +1 more source

Generative Adversarial Minority Oversampling [PDF]

open access: yes2019 IEEE/CVF International Conference on Computer Vision (ICCV), 2019
Codes are available at https://github.com/SankhaSubhra ...
Sankha Subhra Mullick   +2 more
openaire   +2 more sources

Over-sampling imbalanced datasets using the Covariance Matrix [PDF]

open access: yesEAI Endorsed Transactions on Energy Web, 2020
INTRODUCTION: Nowadays, many machine learning tasks involve learning from imbalanced datasets,leading to the miss-classification of the minority class. One of the state-of-the-art approaches to ”solve” thisproblem at the data level is Synthetic Minority ...
Ireimis Leguen-deVarona   +3 more
doaj   +1 more source

Enhanced Skin Lesion Segmentation and Classification Through Ensemble Models

open access: yesEng
This study addresses challenges in skin cancer detection, particularly issues like class imbalance and the varied appearance of lesions, which complicate segmentation and classification tasks.
Su Myat Thwin, Hyun-Seok Park
doaj   +1 more source

Investigating the Impact of Information Sharing in Human Activity Recognition

open access: yesSensors, 2022
The accuracy of Human Activity Recognition is noticeably affected by the orientation of smartphones during data collection. This study utilized a public domain dataset that was specifically collected to include variations in smartphone positioning ...
Muhammad Awais Shafique   +1 more
doaj   +1 more source

Bicriteria Oversampling for Imbalanced Data Classification

open access: yesProcedia Computer Science, 2022
The paper proposes bicriteria oversampling strategy for mining imbalanced data. We use two specialized criteria for oversampling -classification potential and distance from the borderline between minority and majority instances. The potential is to be maximized and the distance minimized.
Joanna Jedrzejowicz, Piotr Jedrzejowicz
openaire   +1 more source

Oversampling ADC: A Review of Recent Design Trends

open access: yesIEEE Access
Oversampling analog-to-digital converters (ADC) serve as the backbone of high-performance, high-precision data interfaces, owing to their remarkable ability to filter out quantization noise. This attribute makes them the preferred choice for applications
Antoine Verreault   +2 more
doaj   +1 more source

A Parameter-Free Cleaning Method for SMOTE in Imbalanced Classification

open access: yesIEEE Access, 2019
Oversampling is an efficient technique in dealing with class-imbalance problem. It addresses the problem by reduplicating or generating the minority class samples to balance the distribution between the samples of the majority and the minority class ...
Yuanting Yan   +5 more
doaj   +1 more source

A Study on Dropout Prediction for University Students Using Machine Learning

open access: yesApplied Sciences, 2023
Student dropout is a serious issue in that it not only affects the individual students who drop out but also has negative impacts on the former university, family, and society together.
Choong Hee Cho   +2 more
doaj   +1 more source

Oversampling Techniques for Imbalanced Data in Regression

open access: yesExpert Systems with Applications, 2023
Our study addresses the challenge of imbalanced regression data in Machine Learning (ML) by introducing tailored methods for different data structures. We adapt K-Nearest Neighbor Oversampling-Regression (KNNOR-Reg), originally for imbalanced classification, to address imbalanced regression in low population datasets, evolving to KNNOR-Deep Regression (
Samir Brahim Belhaouari   +4 more
openaire   +2 more sources

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