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Alexandru-Razvan Manescu and Bogdan Dumitrescu
In this paper, a novel global optimization approach in the form of an adaptive hyper-heuristic, namely HyperDE, is proposed. As the naming suggests, the method is based on the Differential Evolution (DE) heuristic, which is a well-established optimizatio...
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Nicu?or Baroiu, Virgil Gabriel Teodor, Viorel Paunoiu, Georgiana-Alexandra Moro?anu and Iona?-Catalin Dumitrescu
In most situations, for the proper design of a gerotor pump, numerous parameters must be taken into account: the pump geometry, the properties of the materials from which the pumps are made (Young?s modulus, Poisson?s coefficient, friction coefficients, ...
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Oana Dumitrescu, Mihnea Gall and Valeriu Dragan
Design of linear cascades for high-speed bladed machinery.
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Felicia Suciu, Iuliana Stoicescu, Elena Carmen Lupu, Antoanela Popescu, Adrian Cosmin Ro?ca, Florentina Nicoleta Roncea, Denisa-Elena Dumitrescu, Victoria Badea and Florin Ciprian Badea
The aim is to evaluate the antibacterial and antifungal properties of the extracts obtained from Lysimachia nummularia L. in order to be able to introduce these extracts into pharmaceutical products and obtain useful products in the infectious and antifu...
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Florin Dumitrescu, Bogdan Ceachi, Ciprian-Octavian Truica, Mihai Trascau and Adina Magda Florea
Space Surveillance and Tracking is a task that requires the development of systems that can accurately discriminate between natural and man-made objects that orbit around Earth. To manage the discrimination between these objects, it is required to analyz...
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George-Cornel Dumitrescu, Simona Moagar Poladian and Alina-Cerasela Aluculesei
The present paper examines the evolution of Romanian seaside tourism between 2008?2018 to find the connection between climate change and the number of total tourist arrivals. The vicious cycle of greenhouse gas emissions and climate change has become one...
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Maria Simona Raboaca, Catalin Dumitrescu, Constantin Filote and Ioana Manta
Although there are many methods in the literature to eliminate noise from images, finding new methods remains a challenge in the field and, despite the complexity of existing methods, many of the methods do not reach a sufficient level of applicability, ...
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Florin Ilarion Miertoiu and Bogdan Dumitrescu
In this paper, the Feasibility Pump is adapted for the problem of sparse representations of signals affected by Gaussian noise. This adaptation is tested and then compared to Orthogonal Matching Pursuit (OMP) and the Fast Iterative Shrinkage-Thresholding...
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Bogdan Dumitrescu and Ciprian Doru Giurcaneanu
Finding the size of the dictionary is an open issue in dictionary learning (DL). We propose an algorithm that adapts the size during the learning process by using Information Theoretic Criteria (ITC) specialized to the DL problem. The algorithm is built ...
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Adrian Dumitrescu
We study the selection problem, namely that of computing the ith order statistic of n given elements. Here we offer a data structure called selectable sloppy heap that handles a dynamic version in which upon request (i) a new element is inserted or (ii) ...
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