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Permanent URI for this collectionhttps://hdl.handle.net/20.500.12573/395

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COAR Access Rights: search.filters.coarAccessRights.open accessSubject: search.filters.subject.Artificial Neural Networks

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  • Article
    Citation - Scopus: 3
    Estimation of Deformation Modulus of Coals Using Artificial Neural Networks (ANN)
    (Szechenyi Istvan University, 2022-05-29) Köken, E.
    In this study, the Young modulus (E) of different coals was investigated using artificial neural networks (ANN). For this purpose, a comprehensive literature survey was carried out to compile such datasets available for the ANN analyses. As a result of the literature survey, a database composed of 81 datasets was formed. In the ANN analyses, uniaxial compressive strength (UCS) and dry density (ρ<inf>d</inf>) of coals were adopted as input parameters. The ANN analysis results demonstrated that the predictive model established in this study could be reliably used to estimate the E for different coals. The correlation of determination value (R2) for the developed model is 0.85, which shows its relative success. In this context, this study can be declared a case study showing the applicability of ANN for the evaluation of E for a wide range of coal types. However, the number of samples and independent variables should be increased to obtain more comprehensive models in future studies. © 2025 Elsevier B.V., All rights reserved.
  • Article
    Citation - WoS: 8
    Citation - Scopus: 9
    Assessment of Bohme Abrasion Value of Natural Stones Through Artificial Neural Networks (ANN)
    (MDPI, 2022-03-30) Strzalkowski, Pawel; Koken, Ekin; Strzałkowski, Paweł
    This present study explored the Bohme abrasion value (BAV) of natural stones through artificial neural networks (ANNs). For this purpose, a detailed literature survey was conducted to collect quantitative data on the BAV of different natural stones from Turkey. As a result of the ANN analyses, several predictive models (M1-M13) were established by using the rock properties, such as the dry density (rho(d)), water absorption by weight (w(a)), Shore hardness value (SHV), pulse wave velocity (V-p), and uniaxial compressive strength (UCS) of rocks. The performance of the established predictive models was evaluated by using several statistical indicators, and the performance analyses indicated that four of the established models (M1, M5, M10, and M11) could be reliably used to estimate the BAV of natural stones. In addition, explicit mathematical formulations of the proposed ANN models were also introduced in this study to let users implement them more efficiently. In this context, the present study is believed to provide practical and straightforward information on the BAV of natural stones and can be declared a case study on how to model the BAV as a function of different rock properties.