Affiliation: | 1. Department of Computer Sciences and Engineering, University of North Texas, Denton, 311366 TX, USA;2. Department of Information Systems Engineering, Atilim University, 06836 Ankara, Turkey;3. Facultad de Ingeniería de Sistemas Computacionales, Universidad Tecnologica de Panama, 0819-07289 Panama, Panama;4. Department of Computer Engineering, Middle East Technical University, 06531 Ankara, Turkey |