R
Ruxandra Stoean
Researcher at University of Craiova
Publications - 87
Citations - 962
Ruxandra Stoean is an academic researcher from University of Craiova. The author has contributed to research in topics: Evolutionary algorithm & Support vector machine. The author has an hindex of 15, co-authored 77 publications receiving 741 citations. Previous affiliations of Ruxandra Stoean include University of Málaga.
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Multimodal Optimization by Means of a Topological Species Conservation Algorithm
TL;DR: This paper aims to present a novel technique that integrates the conservation of the best successive local individuals with a topological subpopulations separation instead of the common but problematic radius-triggered manner.
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Modeling medical decision making by support vector machines, explaining by rules of evolutionary algorithms with feature selection
Ruxandra Stoean,Catalin Stoean +1 more
TL;DR: A two-step hybridized methodology is put forward, where learning is accurately performed by the SVMs and a comprehensible emulation of the resulting decision model is generated by EAs in the form of propositional rules, while referring only those indicators that highly influence the class separation.
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Performance of a Novel Chaotic Firefly Algorithm with Enhanced Exploration for Tackling Global Optimization Problems: Application for Dropout Regularization
Nebojsa Bacanin,Ruxandra Stoean,Miodrag Zivkovic,Aleksandar Petrović,Tarik A. Rashid,Timea Bezdan +5 more
TL;DR: In this paper, the authors proposed an enhanced version of the firefly algorithm that corrects the acknowledged drawbacks of the original method by an explicit exploration mechanism and a chaotic local search strategy, theoretically tested on two sets of bound-constrained benchmark functions from the CEC suites and practically validated for automatically selecting the optimal dropout rate for the regularization of deep neural networks.
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Evolutionary-driven support vector machines for determining the degree of liver fibrosis in chronic hepatitis C
TL;DR: The use of the evolutionary technique for fibrosis degree prediction triggers simplicity and offers a direct expression of the influence of dynamically selected indicators on the corresponding stage, which significantly surpasses the classical support vector machines, which are both widely used and technically sound.
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Feature selection for a cooperative coevolutionary classifier in liver fibrosis diagnosis
TL;DR: An automatic tool capable to learn from a patients data set with 24 medical indicators characterizing each sample and to subsequently use the acquired knowledge to differentiate between five degrees of liver fibrosis is presented.