1 Department of ECE, Karunya Institute of Technology and Sciences, Coimbatore, India.
2 Department of Computer Science, Faculty of Sciences, University of Craiova, Craiova, Romania.
3 Department of Medical Informatics and Biostatistics, University of Medicine and Pharmacy of Craiova, Craiova, Romania. Electronic address: raluca.danciulescu@umfcv.ro.