Speech steganalysis using chaotic-type features. - Osman Hilmi Koçal; Emrah Yürüklü; Ismail Avcibas (EUSIPCO, 2005)

Chaotic-Type Features for Speech Steganalysis. - Osman Hilmi Koçal; Emrah Yürüklü; Ismail Avcibas (IEEE Trans. Inf. Forensics Secur., 2008)

Image search system with feedback. - Hakan Gündüz; Osman Hilmi Koçal (SIU, 2016)

Stochastic convergence analysis of recursive successive over-relaxation algorithm in adaptive filtering. - Metin Hatun; Osman Hilmi Koçal (Signal Image Video Process., 2017)

Response of Lyapunov exponents to diffusion state of biological networks. - Volkan Altuntas; Murat Gök; Osman Hilmi Koçal (Int. J. Appl. Math. Comput. Sci., 2020)