Results 11 to 20 of about 23,776,838 (246)

Resampling imbalanced data for network intrusion detection datasets

open access: yesJournal of Big Data, 2021
Machine learning plays an increasingly significant role in the building of Network Intrusion Detection Systems. However, machine learning models trained with imbalanced cybersecurity data cannot recognize minority data, hence attacks, effectively.
Sikha Bagui, Kunqi Li
doaj   +2 more sources

Multi-class protein fold classification using a new ensemble machine learning approach. [PDF]

open access: yes, 2003
Protein structure classification represents an important process in understanding the associations between sequence and structure as well as possible functional and evolutionary relationships.
Deville, Y, Gilbert, D, Tan, A
core   +6 more sources

Probability density function estimation based over-sampling for imbalanced two-class problems [PDF]

open access: yes, 2012
A novel probability density function (PDF) estimation based over-sampling approach is proposed for two-class imbalanced classification problems. The Parzen-window kernel function is applied to estimate the PDF of the positive class, from which synthetic ...
Hong, Xia   +3 more
core   +2 more sources

On combination of SMOTE and particle swarm optimization based radial basis function classifier for imbalanced problems [PDF]

open access: yes, 2011
The combination of the synthetic minority oversampling technique (SMOTE) and the radial basis function (RBF) classifier is proposed to deal with classification for imbalanced two-class data.
Hong, Xia   +3 more
core   +2 more sources

A critical assessment of imbalanced class distribution problem: the case of predicting freshmen student attrition [PDF]

open access: yes, 2013
Predicting student attrition is an intriguing yet challenging problem for any academic institution. Class-imbalanced data is a common in the field of student retention, mainly because a lot of students register but fewer students drop out. Classification
Thammasiri, Dech   +3 more
core   +2 more sources

Enhancing classification performance of multi-class imbalanced data using the OAA-DB algorithm [PDF]

open access: yes, 2012
In data classification, the problem of imbalanced class distribution has attracted many attentions. Most efforts have used to investigate the problem mainly for binary classification.
Wong, K.W.   +3 more
core   +1 more source

ANN vs. SVM : which one performs better in classification of MCCs in mammogram imaging [PDF]

open access: yes, 2012
Classification of microcalcification clusters from mammograms plays essential roles in computer-aided diagnosis for early detection of breast cancer, where support vector machine (SVM) and artificial neural network (ANN) are two commonly used techniques.
Ren, Jinchang
core   +4 more sources

A kernel-based two-class classifier for imbalanced data sets [PDF]

open access: yes, 2007
Many kernel classifier construction algorithms adopt classification accuracy as performance metrics in model evaluation. Moreover, equal weighting is often applied to each data sample in parameter estimation.
Hong, X., Harris, C.J., Chen, S.
core   +2 more sources

Predicting Financial Bubbles with Imbalanced Data [PDF]

open access: yesITM Web of Conferences
This paper explores the prediction of financial bubbles within the S&P 500 using a machine learning framework as well as econometric bubble detection tests.
Bogoslavskiy Alexei
doaj   +1 more source

A New Big Data Model Using Distributed Cluster-Based Resampling for Class-Imbalance Problem

open access: yesApplied Computer Systems, 2019
The class imbalance problem, one of the common data irregularities, causes the development of under-represented models. To resolve this issue, the present study proposes a new cluster-based MapReduce design, entitled Distributed Cluster-based Resampling ...
Terzi Duygu Sinanc, Sagiroglu Seref
doaj   +1 more source

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