Zobrazeno 1 - 10
of 47
pro vyhledávání: '"K. Drosou"'
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Support Vector Machines Classification on Class Imbalanced Data: A Case Study with Real Medical Data
Publikováno v:
Journal of Data Science. 12:727-754
support vector machines (SVMs) constitute one of the most popular and powerful classification methods. However, SVMs can be limited in their performance on highly imbalanced datasets. A classifier which has been trained on an imbalanced dataset can p
Autor:
Christos Koukouvinos, K. Drosou
Publikováno v:
Journal of Quality Technology. 52:249-264
The intention of robust parameter design (RPD) experiments is to identify the influence of control factors on the variation introduced by the uncontrollable noise factors. Split-plot designs can be...
Publikováno v:
Journal of Applied Statistics. 46:324-350
The statistical modeling of big data bases constitutes one of the most challenging issues, especially nowadays. The issue is even more critical in case of a complicated correlation structure. Variable selection plays a vital role in statistical analy
Autor:
Christos Koukouvinos, K. Drosou
Publikováno v:
Communications in Statistics - Simulation and Computation. 48:1979-1995
Supersaturated designs (SSDs) constitute a large class of fractional factorial designs which can be used for screening out the important factors from a large set of potentially active ones. A major advantage of these designs is that they reduce the e
Publikováno v:
Metrika. 81:337-355
Supersaturated designs (SSDs) constitute an important class of fractional factorial designs that could be extremely useful in factor screening experiments. Most of the existing studies have focused on balanced designs. This paper provides a new lower
Publikováno v:
Communications in Statistics - Simulation and Computation. 47:1134-1145
The identification of active effects in supersaturated designs (SSDs) constitutes a problem of considerable interest to both scientists and engineers. The complicated structure of the design matrix renders the analysis of such designs a complicated i
Publikováno v:
Quality and Reliability Engineering International. 33:1475-1483
Supersaturated designs are designs in which the number of factors exceeds the run size; consequently, there are not enough degrees of freedom to estimate all the main effects. The goal here is to identify the dominant factors that constitute a small
Publikováno v:
Communications in Statistics - Theory and Methods. 45:3782-3806
Discrepancies are measures which are defined as the deviation between the empirical and the theoretical uniform distribution. In this way, discrepancy is a measure of uniformity which provides a way of construction a special kind of space filling des
Autor:
K. Drosou, Christos Koukouvinos
Publikováno v:
Journal of Applied Statistics. 44:533-553
One of the major issues in medical field constitutes the correct diagnosis, including the limitation of human expertise in diagnosing the disease in a manual way. Nowadays, the use of machine learning classifiers, such as support vector machines (SVM