METHODS

1a-b) Qatar University, Qatar and Northumbria University, UK (Abdelâali Hassaïne, Larbi Boubchir Somaya Al-Maadeed and Ahmed Bouridane)

2) Houari Boumediene University of Sciences and Technologies, Algeria (M. Zayed)

3) Illinois Institute of Technology, USA (T. Obafemi-Ajayi and G. Agam)

4) Kobe University, Japan (N. Tanaka)

5) Institute for Language and Speech Processing (ILSP) of Athena - Research and Innovation Center in Information, Communication and Knowledge Technologies, Greece, & National Technical University of Athens (NTUA), Greece (V. Papavassiliou and F. Simistira)

6) University of Tunis, Tunisia & Technische Universitaet Braunschweig, Germany (I. Ben Messaoud, H. Amiri, H. El Abed Haikal, V. Märgner)

7) Federal University of Pernambuco, Brazil (R. Neves, C.A.B. Mello)

8) National University of Singapore and Institute for Infocomm Research, Singapore (B. Su, S. Lu and C-L. Tan)

9) Concordia University, Canada (T.H. Ngan Le, T.D.Bui and C.Y. Suen)

10) South University of Toulon-Var, France, (T. Lelore and F. Bouchara)

11) Smith College, USA (N. Howe)

12) SAIC-Frederick,Inc., USA (I. Filippov)

13) Vienna University of Technology, Austria and Fraunhofer-Institute for Production Systems and Design Technology (IPK), Germany (F. Kleber, M. Diem, R. Sablatnig)

14) Vienna University of Technology, Austria (F. Kleber, M. Diem, R. Sablatnig)

15) Indian Institute of Technology Kharagpur, India (S. Bag, P. Behera, and P. Bhowmick)

16) University of Guadalajara, Mexico and Freie Universität Berlin, Germany (M.A. Ramírez-Ortegón, E. Cuevas, R. Rojas)

17) University of São Paulo, Brazil (W.A. Luz Alves, A. Morimitsu and R.F. Hashimoto)