نتایج جستجو برای: smote

تعداد نتایج: 650  

2014
S. Lavanya

The imbalanced class distribution is one of the main issue in data mining. This problem exists in multi class imbalance, when samples containing in one class are greater or lower than that of other classes. Most existing imbalance learning techniques are only designed and tested for two-class scenarios. The new negative correlation learning (NCL) algorithm for classification ensembles, called A...

Journal: :Knowl.-Based Syst. 2014
Min-Yuan Cheng Nhat-Duc Hoang Lisayuri Limanto Yu-Wei Wu

In the construction industry, evaluating the financial status of a contractor is a challenging task due to the myriad of the input data as well as the complexity of the working environment. This article presents a novel hybrid intelligent approach named as Evolutionary Least Squares Support Vector Machine Inference Model for Predicting Contractor Default Status (ELSIM-PCDS). The proposed ELSIM-...

2017
Manal Alghamdi Mouaz Al-Mallah Steven Keteyian Clinton Brawner Jonathan Ehrman Sherif Sakr

Machine learning is becoming a popular and important approach in the field of medical research. In this study, we investigate the relative performance of various machine learning methods such as Decision Tree, Naïve Bayes, Logistic Regression, Logistic Model Tree and Random Forests for predicting incident diabetes using medical records of cardiorespiratory fitness. In addition, we apply differe...

2017
Amritanshu Agrawal Tim Menzies

We report and fix an important systematic error in prior studies that ranked classifiers for software analytics. Those studies did not (a) assess classifiers on multiple criteria and they did not (b) study how variations in the data affect the results. Hence, this paper applies (a) multi-criteria tests while (b) fixing the weaker regions of the training data (using SMOTUNED, which is a self-tun...

2016
Colin Bellinger Chris Drummond Nathalie Japkowicz

Problems of class imbalance appear in diverse domains, ranging from gene function annotation to spectra and medical classification. On such problems, the classifier becomes biased in favour of the majority class. This leads to inaccuracy on the important minority classes, such as specific diseases and gene functions. Synthetic oversampling mitigates this by balancing the training set, whilst av...

Journal: :Int. Arab J. Inf. Technol. 2014
Hossein Abbasimehr Mostafa Setak Mohammad Jafar Tarokh

Customer churn is a main concern of most firms in all industries. The aim of customer churn prediction is detecting customers with high tendency to leave a company. Although, many modeling techniques have been used in the field of churn prediction, performance of ensemble methods has not been thoroughly investigated yet. Therefore, in this paper, we perform a comparative assessment of the perfo...

Journal: :International Journal of Power Electronics and Drive Systems 2021

<span>The first year of an engineering student was important to take proper academic planning. All subjects in the were essential for basis. Student performance prediction helped academics improve their better. Students checked by themselves. If they aware that are low, then could make some improvement better performance. This research focused on combining oversampling minority class data...

Journal: :Journal of Electrical and Computer Engineering 2022

In order to improve the construction quality of tourism management projects, this paper applies data mining algorithm management, and analyzes SMOTE algorithm. According improvement direction, proposes two improved algorithms, KM-SMOTE RM-SMOTE, uses clustering preprocess minority set. Moreover, on basis, establishes clusters obtains cluster centers. The deficiencies fuzzy positive negative cla...

Journal: :Water 2022

Chemical oxygen demand (COD) is one of the indicators used to monitor level pollution in surface water. To recycle agricultural water resources, it crucial monitor, a timely manner, whether COD exceeds control standard. A diagnostic model was developed using visible near-infrared spectroscopy (Vis-NIR) combined with partial least squares discriminant analysis (PLS–DA). total 127 samples were co...

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