[1] Univ Thessaly, Dept Elect & Comp Engn, DIANA Lab, Volos 38221, Greece
[2] Hellenic Pasteur Inst, DIANA Lab, 127 Vasilissis Sofias Ave, Athens 11521, Greece
[3] Univ Thessaly, Dept Comp Sci & Biomed Informat, Papasiopoulou 24, Lamia 35100, Greece
[4] Univ Pittsburgh, Sch Med, Dept Computat & Syst Biol, Pittsburgh, PA 15260 USA
[5] Univ Crete, Dept Biol, Computat Genom Grp, Iraklion 70013, Greece
[6] Univ Leuven, Dept Elect Engn ESAT, STADIUS Ctr Dynam Syst Signal Proc & Data Analyt, Leuven, Belgium