American Journal of Signal Processing

American Journal of Signal Processing publishes articles on signal processing research and applications. It covers aspects from fundamental principles to practical implementation, intending to bring up-to-date, emerging and active technical developments, issues, and events to the research, educational, and professional communities.

Waleed Abdulla

Editorial Board Member of American Journal of Signal Processing

Associate Professor, The University of Auckland, New Zealand

Research Areas

Speech Signal Processing, Human Biometrics, Biosignal Processing, Active Noise Control

Education

Ph.DUniversity of Otago, New Zealand
M.ScUniversity of Otago, New Zealand
B.ScUniversity of Otago, New Zealand

Experience

2002-present Senior Lecturer, The University of Auckland
1998-2002 Part time researcher and PhD student, University of Otago
1993-1997 Head of Department, Electronics and Information Technology Department, University of Science & Technology, Sana'a, Yemen Republic, I established a new department
1992-1993 Senior lecturer, Electrical Engineering Department, College of Engineering University of Sana'a, Sana'a, Yemen Republic
1990-1992 Lecturer, Electrical Engineering Department/University of Baghdad Iraq
1986-1990 Head of Planning Division, Electronics & Computers Research Centre (ECRC)/Scientific Research Centre (SRC), Iraq
1977-1986 Electronic Design Engineer then Senior Engineer in several companies in IRAQ

Academic Achievement

Japan Society for the Promotion Science fellowship award, Japan
Electrical and Telecommunication Research Institute research fellowship award, South Korea, 2008
Hong Kong Polytechnic University research fellowship award, 2008
Awarded the Teacher of the Year Award in 2005
Invited to give talks and seminars in several international institutions such as IDIAP (Switzerland), Tokyo
Recent invited talk at Temasek Lab at Nanyang Technological University-Singapore 13/12/2010

Membership

Board of Governors Member of Asia-Pacific Association for Signal and Information Processing
Japan Society for the Promotion Science fellowship award, Japan
Member Asia-Pacific Signal and Information Processing Association (APSIPA)
Member ISCA (International Speech Communication Association)
Member IET (Institution of Engineering and Technology)
Member IEEE (International Electrical and Electronic Engineering)

Publications: Journals

[1]  LIN, Y., ABDULLA, W.H., 'Objective Quality Measures for Perceptual Evaluation in Digital Audio Watermarking', Accepted for publication in IET Signal Processing Journal, 2011.
[2]  ARDEKANI, I.T. and ABDULLA, W.H., 'Effects of secondary path modeling error on performance of active noise control systems', Accepted for publication in IEEE Transaction on Control Systems Technology, 2011.
[3]  ARDEKANI, I.T. and ABDULLA, W.H., "Fast and robust active noise control: analysis, design and real-time implementation", Accepted for publication in International Journal on Adaptive Control and Signal Processing, 2011.
[4]  CHENG, O., ABDULLA, W.H., SALCIC, ' Hardware-Software Co-Design of Automatic Speech Recognition System for Embedded Real-Time Applications', IEEE Transactions on Industrial Electronics, Vol. 58, Number 3, pp. 850-859, 2011.
[5]  ABDULLA, W.H., WONG, L., 'Neonatal EEG Signal Characteristics Using Time Frequency Analysis', Accepted for publication in Physica A: Statistical Mechanics and its Applications Journal, 390 (2011) 1096-1110. The online version can be found on: http://authors.elsevier.com/TrackPaper.html?trk_article=PHYSA12944&trk_surname=Abdulla.
[6]  ARDEKANI, I.T. and ABDULLA, W.H. "On the convergence of real-time active noise control systems", Signal Processing Journal (Elsevier), Vol. 91, Issue 5, pp.1262–1274, 2011 (hardcopy appears in May 2011).
[7]  ARDEKANI, I.T. and ABDULLA, W.H., "On the stability of adaptation process in active noise control systems", Journal of Acoustical Society of America (JASA), Vol. 129, Jan. 2011.
[8]  ARDEKANI, I.T. and ABDULLA, W.H., "Theoretical convergence analysis of FxLMS algorithm", Signal Processing (Elsevier), Vol. 90, Issue 12, pp. 3046-3055, 2010 (doi:10.1016/j.sigpro.2010.05.009).
[9]  Abdulla, W.H. and Zhang, Y., 'Voice Biometric Feature using Gammatone Filterbank and ICA', in special issue "Speech as a Human Biometric: I know who you are from your voice!", International Journal of Biometrics (IJBM), Vol. 2, Issue 4, Pp: 330-349, 2010.
[10]  WANG, K.I., ABDULLA, W.H., SALCIC, Z. 'Ambient intelligence platform using multi-agent system and mobile ubiquitous hardware', Pervasive and Mobile Computing Journal, 5, (5), p558-573, 2009, doi:10.1016/j.pmcj.2009.06.003.
[11]  ABDULLA, W.H., YU, P., CALVERLY, P.'Lips Tracking Biometric for Speaker Recognition', International Journal of Biometrics, Vol. 1, Issue 3, p288-306, 2009.
[12]  ABDULLA, W.H. (2007), 'Robust Speaker Modeling Using Perceptually Motivated Feature', Journal of Pattern Recognition Letters, special issue on Advances on Pattern Recognition for Speech and Audio Processing, Elsevier, Volume 28, Issue 11, 1 August, Pages 1333-1342.
[13]  LAI, J.C., ABDULLA, W.H., HAUSSMANN, S. 'Hardware implementation of a sub-pixel algorithm for real-time saw blade deflection monitoring', Integration-the VLSI Journal, 39, (3), p291-309, 2006, 10.1016/j.vlsi.2005.07.004.
[14]  ZENG, Q., ABDULLA, W.H. 'Speech enhancement by multichannel crosstalk resistant ANC and improved spectrum subtraction', EURASIP Journal on Applied Signal Processing, Volume 2006, Article ID 61214, Pages 1–10, 10.1155/ASP/2006/61214.
[15]  ABDULLA, W.H., KASABOV, N. 'Reduced feature-set based parallel CHMM speech recognition systems', Information Sciences, 156, p21-38, 2003.
[16]  ABDULLA, W.H. 'HMM-based techniques for speech segments extraction', Journal of Scientific Programming, 10, p221-239, 2002.
[17]  ABDULLA, W.H., ASAAD, A. R. A. 'A probabilistic methodology for speech recognition systems.', Journal of Science and Technology, (1), p1-11, 1997.
[18]  ABDULLA, W.H., ABDUL-KARIM, M.A.H., 'Real-time spoken Arabic digit recognizer', International Journal of Electronics, Volume 59, Issue 5 November 1985 , pages 645-648.
[19]  ABDULLA, W.H., SALEH, A.O.M., MORAD, A. H., Pattern recognition model to isolated word recognition, AMSE Review (Association for the Advancement of Modelling and Simulation Techniques in Enterprises), vol. 14, no. 3, pp. 37–52, 1990.
[20]  ABDULLA, W.H., ABU Al-KHAIL, M.N., 'Dialled telephone number announcer', International Journal of Electronics, vol. 66, no. 5, pp. 697–703, 1989.
[21]  ABDULLA, W. H., W. A. MAHMOUD, Evaluation study of different vector quantization parameters in speech recognition systems. J. Electronics & Computers Research, vol. 3, no. 2, pp. 127-137, 1989.
[22]  ABDULLA, W. H., W. A. MAHMOUD, Implementation and performance of vector quantization in automatic speech recognition. J. Electronics & Computers Research, vol. 3, no. 2, pp. 113-126, 1989.
[23]  MORAD, A. H., SALEH, A. O. A., ABDULLA, W. H., ' Arabic characters recognition using a curve-to-line transformation technique', AMSE Review (Association for the Advancement of Modelling and Simulation Techniques in Enterprises), vol. 8, no. 3, pp. 49–56, 1988.
[24]  ABDULLA, W.H., SALEH, A.O.M., MORAD, A. H.,'A pre-processing algorithm for hand-written character recognition', Pattern Recognition Letters, vol. 7, no. 1, pp. 13–18, 1988.
[25]  LUAY, T., ABDULLA, W. H., 'Data acquisition system using the IEEE 488 interface bus', Microprocessors and Microsystems, vol. 11, no. 9, pp. 493–498, 1987.
[26]  SALEH, A. O. M., W. H. ABDULLA, An expert system for troubleshooting task. J. Electronics and Computers Research, vol.1, no. 1, pp. 37-45, 1987.
[27]  ABDULLA, W.H. and ABDUL-KARIM, M. A.H., REAL-TIME SPOKEN ARABIC DIGIT RECOGNIZER, International Journal of Electronics, vol. 59, no. 5, pp. 645–648, 1985.
[28]  ABDULLA, W.H., ABDUL-KARIM, M. A.H., 'VISUAL PATTERNS OF SPOKEN ARABIC NUMERALS', International Journal of Electronics, vol. 58, no. 3, pp. 521–524, 1985.

Publications: Conferences/Workshops/Symposiums

[1]  ZENG, Q. AND ABDULLA, W.H. , 'Microphone Mini-array Based Speech Enhancement Using ISDS-MGSC Algorithm', Accepted in: Asia-Pacific Signal and Information Processing Association Annual Summit and Conference 2011, Oct.18-21, 2011, Xi'an, China.
[2]  TABATABAEI, A.I., ABDULLA, W.H., 'Dominant Pole Localization of FxLMS Adaptation Process in Active Noise Control', Accepted in: Asia-Pacific Signal and Information Processing Association Annual Summit and Conference 2011 Oct.18-21, 2011, Xi'an, China.
[3]  TABATABAEI, A.I., ABDULLA, W.H., 'Dominant Pole Localization of FxLMS Adaptation Process in Active Noise Control', Asia-Pacific Signal and Information Processing Association Annual Summit and Conference: APSIPA'2011, Xi'an, China, October 18-21, 2011.
[4]  Zeng, Q., I., ABDULLA, W.H. 'Microphone Mini-array Based Speech Enhancement Using ISDS-MGSC Algorithm', Asia-Pacific Signal and Information Processing Association Annual Summit and Conference: APSIPA'2011, Xi'an, China, October 18-21, 2011.
[5]  TABATABAEI, A.I., ABDULLA, W.H., 'Study of convergence behaviour of real-time adaptive active noise control systems', Asia Pacific Signal and Information Processing Association Annual Summit and Conference: APSIPA'10, Singapore, December 14-17, 2010.
[6]  TABATABAEI, A.I., ABDULLA, W.H., 'Convergence analysis of active noise control systems using root locus theory",' Asia-Pacific Signal and Information Processing Association Annual Summit and Conference: APSIPA'10, Singapore, December 14-17, 2010.
[7]  XIE, X., ABDULLA, W.H. 'Computer Aided English Language Pronunciation Learning System', Asia-Pacific Signal and Information Processing Association Annual Summit and Conference: APSIPA'10, Singapore, December 14-17, 2010.
[8]  ZENG, Q., ABDULLA, W.H. 'Speech Enhancement using GSC with Multi-Channel Crosstalk Resistant Adaptive Signal Cancellation', IASTED International Conference on Signal Processing, Pattern Recognition and Applications, Innsbruck, Austria, February 17-19, 2009.
[9]  TABATABAEI, A.I., ABDULLA, W.H., NGUANG, S.K.'A New Subband Algorithm for Active Attenuation of Broadband Noise', International Symposium on Active Control of Sound and Vibration: ACTIVE'09, Ottawa, Canada, August, 2009.
[10]  OCTAVIAN, C., ABDULLA, W.H., SALCIC, Z. 'Speech Recognition System for Embedded Real-time Applications', IEEE International Symposium of Signal and Information Processing, UAE, December 14-17, 2009.
[11]  ABDULLA, W.H., GUAN, Z., CHI SOU, H. 'Noise Robust Speech Activity Detection', IEEE International Symposium on Signal and Information Processing, UAE, December 14-17, 2009.
[12]  TABATABAEI, A.I., ABDULLA, W.H., NGUANG, S.K .'Allpass Filtered Reference LMS Algorithm for Adaptive Feedback Active Noise Control', Asia-Pacific Signal and Information Processing Association (APSIPA) Conference, Sapporo, Japan, October 4-7, 2009.
[13]  ROWE, G.B., SMAILL, C.R., GODFREY, E., CARTER, L.J., GUILLEMIN, B.J., ANDREWS, M., ABDULLA, W.H.'Dealing with the Tail: Remedial Tutorials for Second-year Electrical-engineering Students', Australian Association for Engineering Education Conference, Dr Colin Kestell(ed.), Proceedings of Australian Association for Engineering Education Conference, Adelaide, December 6-9, 2009, http://www.plevin.com.au/aaee2009/program.htm.
[14]  Abdulla, W. H. and Zhang, Y. (2008), "Human-Like Ears versus Two-Microphone Array, Which Works Better for Speaker Identification?", INTERSPEECH 2008, 22-26 September 2008, Brisbane, Australia.
[15]  Ardekani, I.T. and Abdulla, W.H., and Nguang S.K.(2008), "A new Algorithm for Enhancement of Excessively Noisy Speech Signals", The 9th Asia Oceania Top Universities League in Engineering, Auckland, New Zealand, November 2008.
[16]  Ardekani, I.T. and Abdulla, W.H., and Nguang S.K. (2008), "Adaptive Motor Current Signature Analysis ", The 9th Asia Oceania Top Universities League in Engineering, Auckland, New Zealand, November 2008.
[17]  Zhang, Y. and Abdulla, W. H. (2008), "Robust Speaker Identification Using Cross-correlation GTF-ICA Feature", INTERSPEECH 2008, 22-26 September 2008, Brisbane, Australia.
[18]  Yushi Zhang; Abdulla, W.H. (2008), 'Voice as a Robust Biometrics', Future Generation Communication and Networking (FGCN '08), Volume 3, 13-15 Dec. 2008 Page(s):41-46.
[19]  Lin, Y. and Abdulla, W. H.(2008), "Perceptual Evaluation of Audio Watermarking Using Objective Quality Measures", IEEE International Conference on Acoustic, Speech, and Signal Processing (ICASSP 2008), Las Vegas, Nevada, USA, 30 March- 4 April 2008.
[20]  Wong, L. and Abdulla, W. H. (2008), 'Automatic Detection Of Preterm Neonatal EEG Background States', IEEE International Conference on Acoustic, Speech, and Signal Processing (ICASSP 2008), Las Vegas, Nevada, USA, 30 March- 4 April 2008.
[21]  Bruce MacDonald, Waleed Abdulla, Elizabeth Broadbent, Martin Connolly, Karen Day, Ngaire Kerse, Michael Neve, Jim Warren, Catherine Watson (2008),'Robot Assistant for Care of Older People', The 5th International Conference On Ubiquitous Robots And Ambient Intelligence (URAI 2008), Korea University, Seoul, Korea, November 20~22.
[22]  Yushi Zhang, Waleed Abdulla (2008),'Voice as a Robust Biometrics', The International Conference on Bio-Science and Bio-Technology (BSBT 2008) Hainan Island, China, December 13–15.
[23]  K. I.-K. Wang, W. H. Abdulla, Z. Salcic, N. DeSouza, and S. Ramkumar (2008), "Multiagent Control System with Mobile Ubiquitous Platform for Ambient Intelligence," in Proceedings of 4th International Conference on Intelligent Environments.
[24]  Kevin I-Kai Wang, Waleed H. Abdulla, Zoran Salcic, Ian Yen-Hung Chen, Neil Desouza, Sashank Ramkumar, (2008) 'Multi-Agent System Architecture for Controlling and Interfacing Smart Environments', 1st Korean-New Zealand Workshop on Advances in Computer Graphics, Computer Vision and Virtual Reality (GRAVIKON 2008).
[25]  Lin, Y. and Abdulla, W. H.(2007), 'Robust Audio Watermarking Technique Based on Gammatone Filterbank and Coded-Image', International Symposium on Signal Processing and its Applications (ISSPA 2007), 12-15 February 2007, Sharjah, UAE.
[26]  Zhang, Y. and Abdulla, W. H.(2007), 'Eigen analysis Applied to Speaker Identification Using Gammatone Auditory Filterbank and Independent Component Analysis, International Symposium on Signal Processing and its Applications (ISSPA 2007), 12-15 February 2007, Sharjah, UAE.
[27]  Pandey, N., Abdulla, W. H. and Salcic, Z. (2007), 'Gait-Based Person Identification Using Multi-View Sub-Vector Quantisation Technique', International Symposium on Signal Processing and its Applications (ISSPA 2007), 12-15 February 2007, Sharjah, UAE.
[28]  Lin, Y. and Abdulla, W. H.(2007), "Audio Watermarking Detection Resistant to Time and Pitch Scale Modification", 2007 IEEE International Conference on Signal Processing and Communications (ICSPC 2007), Dubai, United Arab Emirates, pp. 1379-1382, 24-27 November 2007.
[29]  Lin, Y. and Abdulla, W. H.(2007), "Multiple Scrambling and Adaptive Synchronization for Audio Watermarking Scheme", Digital Watermarking, LNCS 5041, Ed. Shi, Y.Q., Kim, H-J, Katzenbeisser, S., pp. 440-453.
[30]  Yushi, Z., Abdulla, W. H., (2007), 'Robust Speaker Identification in Noisy Environment using Cross Diagonal GTF-ICA Feature', The Sixth International Conference on Information, Communications and Signal Processing, Singapore.
[31]  Wang, K. I-K., Abdulla, W. H., and Z. Salcic (2007), 'Multi-agent Software Control System with Hybrid Intelligence', Indulska et al. (Eds.): UIC 2007, LNCS 4611, Springer, 2007, pp. 1046-1055.
[32]  Wang, K. I-K., Abdulla, W. H. and Salcic, Z. (2007), 'Multi-agent System with Hybrid Intelligence Using Neural Network and Fuzzy Inference Techniques', H. G. Okuno and M. Ali et al. (Eds.): IEA/AIE 2007, LNAI 4570, Springer,pp. 0473-048.
[33]  Zeng, Q. and Abdulla, W.H. (2006) Speech Enhancement with Multi-channel Crosstalk Resistant Adaptive Noise Cancellation. IEEE Conference ICASSP'06 Proceedings, vol.1, pp. 485-488, France.
[34]  Zeng, Q. and Abdulla, W.H. (2006), Speech Enhancement by Multi-channel Crosstalk Resistant Adaptive Noise Cancellation and Post Filtering. Presented in the 11th Australasian Conference on Speech Science and Technology SST 2006, 6-8 December, Auckland, New Zealand.
[35]  Zhang, Y. and Abdulla, W. H. (2006), 'Gammatone Auditory Filterbank and Independent Component Analysis for Speaker Identification', presented in 9th International Conference on Spoken Language Processing (Interspeech 2006- ICSLP), Carnegie Mellon University, USA.
[36]  Wong, L. and Abdulla, W. H. (2006), 'Time-frequency evaluation of segmentation methods for neonatal EEG signals', Presented at IEEE International Conference of the Engineering in Medicine and Biology Society (EMBC'06), New York, August 30-September.
[37]  Wang, I-K., Abdulla, W. H, and Salcic, Z. (2006), 'Distributed Embedded Intelligence Room with Multi-agent Cooperative Learning', presentation in Ubiquitous Intelligence and Computing (UIC06) conference, China.
[38]  Wang, I-K., Abdulla, W. H., and Salcic, Z. (2006), 'Multi-Agent Fuzzy Inference Control System for Intelligent Environments using JADE', presented in Intelligent Environments (IE06) conference, Greece.
[39]  Lin, A., Berber, S., and Abdulla, W.H. (2006), 'An investigation on non-uniform bandwidths auditory filterbank in audio coding, Presented in the 11th Australasian Conference on Speech Science and Technology SST 2006, 6-8 December, Auckland, New Zealand.
[40]  WANG, I.K., ABDULLA, W.H., SALCIC, Z. 'A Multi-Agent System for Intelligent Environments using JADE', The IEE International Workshop on Intelligent Environments, Intelligent Environments 05, Colchester, Essex University, UK, 28-29 June, 2005, p.86-91.
[41]  YU, P.W., ABDULLA, W.H., PAUL, C. 'Particle Filter Lips Tracking for Speaker Verification', International Conference on Intelligent Systems, Intelligent Systems, Kuala Lumpur, Malaysia, 1-3 December, 2005.
[42]  PANDEY, N., ABDULLA, W.H., SALCIC, Z. 'Human Identification Using Vector Quantisation Technique', Eighth International Symposium on Signal Processing and its Applications, Sydney, Australia., 28-31 August, 2005.
[43]  CHEN, O., ABDULLA, W.H., SALCIC, Z. 'Performance Evaluation Of Front-End Algorithms For Robust Speech Recognition', Eighth International Symposium on Signal Processing and its Applications, Sydney, Australia, 28-31 August, 2005.
[44]  GARY, S., ABDULLA, W.H. 'Speaker Localisation Using Microphone Array and Fuzzy Logic Modelling', International Conference on Intelligent Systems, Kuala Lumpur, Malaysia, 1-3 December, 2005.
[45]  CHOW, D., ABDULLA, W.H. 'Robust Speaker Identification Based on Perceptual Log Area Ratio and Gaussian Mixture Models', INTERSPEECH 2004, 8th International Conference on Spoken Language Processing, Jeju Island, Korea., 4-8 October, 2004, p.1761-1764.
[46]  WONG, L., ABDULLA, W.H. 'A Software Algorithm Prototype for Optical Recognition of Embossed Braille', The 17th International Conference on Pattern Recognition, ICPR2004, Proceedings-International Conference on Pattern Recognition, IEEE Comp. Soc., Vol. 2, Cambridge, UK, 23-26 August, 2004, p.586-589.
[47]  SWAIN, A., ABDULLA, W.H. 'Estimation of LPC Parameters of Speech Signals in Noisy Environment', IEEE TENCON 2004, Analog and Digital Techniques in Electrical Engineering, Thailand, 21-24 November, 2004, p.139-139.
[48]  ABDULLA, W.H. "Introduction to Speech Processing", 8th Pacific Rim International Conference on Artificial Intelligence, PRICAI 2004: Trends in Artificial Intelligence, 9-11 August, 2004.
[49]  ABDULLA, W.H., CHOW, D. 'Robust Speaker Identification Based on Perceptual Log Area Ratio and Gaussian Mixture Models', INTERSPEECH 2004, Jeju Island, Korea, 4-8 October, 2004.
[50]  SWAIN, A.K., ABDULLA, W.H. 'Estimation of LPC parameters of speech under noisy environment', IEEE Region 10 Annual International Conference, Proceedings /TENCON/A, Chiang Mai, Thailand, 21-24 November, 2004, p.A139-A142.
[51]  ABDULLA, W.H., CHOW, D., SIN, G. 'Cross-Words Reference Template for DTW-Based Speech Recognition Systems', IEEE TENCON 2003, IEEE Conference on Convergent Technologies, Vol. 4, Bangalore, India, 15-17 October, 2003, p.1576-1579.
[52]  ABDULLA, W.H., KASABOV, N. K. 'Improving speech recognition performance through gender separation.', 5th Conference on Artificial Neural Networks and Expert Systems (ANNES), Artificial Neural Networks and Expert Systems International Conference, Dunedin, New Zealand, 22-24 November, 2001, p.218-222.
[53]  ABDULLA, W.H., KASABOV, N. K. 'Feature Selection for Parallel CHMM Speech Recognition Systems.', Proc. of the Fifth Joint Conference on Information Sciences, pp, JCIS 2000, 2, Atlantic City, New Jersey, USA, 27 February-3 March, 2000, p.874-878.
[54]  ABDULLA, W.H., KASABOV, N. K. 'Speech recognition enhancement via robust CHMM speech background discrimination.', ICONIP/ANZIIS/ANNES'99 International Workshop, Dunedin, 22-23 November, 1999.
[55]  ABDULLA, W.H., KASABOV, N. K. 'Two pass hidden Markov model for speech recognition systems.', Proc. ICICS'99, Singapore, 7-10 December, 1999.
[56]  ABDULLA, W.H., KASABOV, N. K. 'The concepts of hidden Markov model in speech recognition.', International Joint Conference on Neural Networks (IJCNN), Washington, DC, 10-16 July, 1999.
[57]  Abdulla, W. H. and L. A. Al-Chalabi, Function generator using interpolation technique. Proc. Modelling and Simulation on Microcomputers, California, USA, pp. 65-69, 1984.

Publications: Books/Book Chapters

[1]  WANG, K.I., ABDULLA, W.H., SALCIC, Z. 'Multi-agent System with Hybrid Intelligence Using Neural Network and Fuzzy Inference Techniques', In: H. G. Okuno and M. Ali et al. (ed.), New Trends in Applied Artificial Intelligence., Springer Berlin/Heidelberg, Springer, p.473-482, 2007.
[2]  WANG, K.I., ABDULLA, W.H., SALCIC, Z. 'Multi-agent Software Control System with Hybrid Intelligence', In:Indulska et. al. (ed.), Proceedings of UIC 2007., (LNCS 4611edn), Berlin, Springer, p.281-294, 2007.
[3]  LIN, Y., ABDULLA, W.H. 'Multiple Scrambling and Adaptive Synchronization for Audio Watermarking Scheme', In:Shi, Y.Q., Kim, H-J, Katzenbeisser, S. (ed.), Digital Watermarking., Springer Berlin/Heidelberg, Springer, p.440-453, 2007.
[4]  WANG, I.K., ABDULLA, W.H., SALCIC, Z.'Multi-agent Software Control System with Hybrid Intelligence for Ubiquitous Intelligent Environments', In:Indulska et al. (ed.), Ubiquitous Intelligence and Computing., Springer Berlin/Heidelberg, Springer, p.1046-1055, 2007.
[5]  CHOW, D., ABDULLA, W.H. 'Speaker Identification Based on Log Area Ratio and Gaussian Mixture Models in Narrow-Band Speech', In:Zhang, C. Guesgen Yeap, W. (ed.), Lecture Notes in Artificial Intelligence LNAI 3157., PRICAI 2004: Trends in Artificial Intelligence, Springer, p.901-908-908, 2004.
[6]  ABDULLA, W.H. Auditory based feature vectors for speech recognition systems, Advances in Communications And Software Technologies, WSEAS, WSEAS Press, p231-236, 2002.