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Books/Chapters

Journal papers

Conference papers

      [2008] [2007] [2006] [2005] [2004] [2003] [2002] [2001] [2000]

 


Books/Chapters

  • G. Farahani, S.M. Ahadi and M.M. Homayounpour, "Autocorrelation-based Methods for Noise- Robust Speech Recognition,” in Robust Speech Recognition and Understanding, M. Grimm and K. Kroschel, Eds., I-Tech Education and Publishing, Vienna (pdf)

 Recent Journal papers
                                                                                                                                             [ TOP ]

  • S.M. Ahadi, "Improved Bayesian Training for Context-Dependent Modeling in Continuous Persian Speech Recognition," Journal of the Iranian Association of Electrical and Electronics Engineers.

  • G. Farahani, S.M. Ahadi and M.M. Homayounpour, “Features based on filtering and spectral peaks in autocorrelation domain for robust speech recognition,” Computer Speech and Language,21 (2007), 187-205, Elsevier.

  • G. Farahani, S.M. Ahadi and M.M. Homayounpour, "Robust Feature Extraction of Speech via Noise Reduction in Autocorrelation Domain,” Lecture Notes in Computer Science, LNCS-4105,Springer-Verlag, September 2006.

  • S. Sharifian and S.M. Ahadi, “Speaker Adaptation in Continuous Speech Recognition Using MLLR-based MAP Estimation,” Esteghlal Journal (in Persian), vol. 23, No. 2, February/March 2005.

  • S.M. Ahadi, H. Sheikhzadeh, R.L. Brennan and G.H. Freeman, “A weighted overlap add-based front-end for speech recognition,” Journal of the Iranian Association of Electrical and Electronics Engineers, vol. 1, No. 2, pp.15-20, Summer and Fall 2004.

  • D. Gharavian and S.M. Ahadi, “Statistical Evaluation of Stress in Farsi and its Effect on Vowel Pitch Frequencies, Durations and Energies”, Amirkabir Scientific Research Journal, Vol. 15, No.58-A, pp.258-268, Spring 2004 (in Persian).

  • J. Habibi-Markani and S.M. Ahadi, “Category-based Statistical Modeling of Farsi Language for Continuous Speech Recognition,” International Journal of Engineering Sciences, vol. 15, No.1,Spring 2004 (in Persian).

  • S.H. Shams and S.M. Ahadi, “Context Dependent Modeling in Continuous Speech Recognition based on a Persian Phonetic Decision Tree”, Tarbiat Modarres Scientific Research Journal, vol.13, Autumn 2003 (in Persian).

  • S.H. Shams and S.M. Ahadi, “Weighted Training of Context-Dependent Models for Continuous Persian Speech Recognition”, Amirkabir Journal of Science and Technology, vol. 14, No. 53,Winter 2003 (In Persian).

Recent Conference papers

2008                                                                                                                                     [ TOP ]

  • A. Ziaei, S.M. Ahadi and H. Yeganeh, "A New Approach to Automatic Object Detection and Tracking Using Wavelet Features and ANN," in Proc. International Conference on Signal Processing (ICSP’08), Beijing.

  • A. Ziaei, S.M. Ahadi and H. Yeganeh, "Enhanced Spectral Features for Spoken Language Identification," in Proc. International Conference on Signal Processing (ICSP’08), Beijing.

  • H. Yeganeh, S.M. Ahadi and A. Ziaei, "A New MFCC Improvement Method for Robust ASR," in Proc. International Conference on Signal Processing (ICSP’08), Beijing.

  • S. Seyedin and S.M. Ahadi, "Feature Extraction Based on DCT and MVDR Spectral Estimation for Robust Speech Recognition," in Proc. International Conference on Signal Processing (ICSP’08), Beijing.

  • M. MirRezaei and S.M. Ahadi, "Speaker Diarization in a Multi-Speaker Environment Using Particle Swarm Optimization and Mutual Information," in Proc. IEEE International Conference on Multimedia and Expo (ICME 2008), Hannover.

  • Nima Khademi Kalantari, Seyed Mohammad Ahadi and Hamidreza Amindavar, "A Universally Optimum Decoder for Multiplicative Audio Watermarking," in Proc. IEEE International Conference on Multimedia and Expo (ICME 2008), Hannover.

  • A.H. Hadjahmadi, M. M. Homayounpour, S. M. Ahadi and G. Farahani, "Evaluation of the effect of methods based on the autocorrelation sequence peaks on the robustness of speaker identification systems," in Proc. 16th Iranian Conference on Electrical Engineering, May 2008, Tehran (in Persian).

  • A.H. Hadjahmadi, M. M. Homayounpour and S. M. Ahadi, "Robust Weighted Fuzzy C-Means Clustering," to appear in Proc. IEEE World Congress on Computational Intelligence 2008, Hong Kong.

  • S.A. Soleimani and S.M. Ahadi, "Voice Activity Detection based on Combination of Multiple Features using Linear/Kernel Discriminant Analyses," in Proc. International Conference on Information and Communication Technologies: from Theory to Applications (ICTTA'08), Damascus.

  • N. Khademi, and S.M. Ahadi, "Vector quantization index modulation watermarking using concentric hyperspherical codebooks," in Proc. ICASSP-08, Las Vegas.

  • J. Kabudian, M. M. Homayounpour and S.M. Ahadi, "Time-Inhomogeneous Hidden Bernoulli Model (TI-HBM): A New Alternative to Hidden Markov Model in Automatic Speech Recognition," in Proc. ICASSP-08, Las Vegas.

  • O. Hazrati, S.M. Ahadi and O. Sadjadi, "Kernel-based Speaker Clustering for Rapid Speaker Adaptation," in Proc. International Conference on Information Technology: New Generations (ITNG), Las Vegas, April 2008.

  • A.H. Hadjahmadi, M.M. Homayounpour and S. M. Ahadi, "Robust speaker recognition using missing feature theory for reconstruction of spectral peaks of autocorrelation sequence," in Proc 4th International Colloquium on Signal Processing and its Applications (CSPA 2008), Kuala Lumpur.

  • S.A. Soleimani and S.M. Ahadi, "LDA-based multiple feature weighting for voice activity detection," in Proc. 13th Computer Society of Iran Annual Conference (CSICC), March 2008, Kish (in Persian).

  • M.M. Homayounpour, A. H. Hajahmadi and S.M. Ahadi, "Noise-Robust Hybrid Feature Extraction for Speaker Identification," in Proc. 13th Computer Society of Iran Annual Conference (CSICC), March 2008, Kish (in Persian).

2007                                                                                                                                     [ TOP ]

  • S.M. Mirrezaie and S.M. Ahadi, "Robust Speaker Diarization in a Multi-Speaker Environment Using Autocorrelation-based Noise Subtraction," to appear in Proceedings IEEE International Symposium on Signal Processing and Information Technology, ISSPIT, Dec. 2007, Cairo.

  • N. Khademi, and S.M. Ahadi, A. Kashi "A Robust Audio Watermarking Scheme Using Mean Quantization in the Wavelet Transform Domain," to appear in Proceedings IEEE International Symposium on Signal Processing and Information Technology, ISSPIT, Dec. 2007, Cairo. 

  • S. Omid Sadjadi, S.M. Ahadi, and Oldooz Hazrati, "Unsupervised Speech/Music Classification Using One-class Support Vector Machines," to appear in Proc. 6th International Conference on Information, Communication, and Signal processing, ICICS, Dec. 2007, Singapore.

  • N. Faraji, S. M. Ahadi and S. S. Shariati, “Threshold Reduction for Improving Sparse Coding Shrinkage Performance in Speech Enhancement,” to appear in Proceedings International Conference on Information, Communications and Signal Processing, ICICS, Dec. 2007, Singapore.

  • N. Faraji and S.M. Ahadi, “Evaluation of a Feature Selection Scheme on ICA-based Filter-Bank for Speech Recognition,” to appear in Proceedings International Conference on Information, Communications and Signal Processing, ICICS, Dec. 2007, Singapore.

  • D. Gharavian and S.M. Ahadi, "Statistical Evaluation of the Effect of Gender on Prosodic Parameters and their Influence on Gender-Dependent Speech Recognition," to appear in Proceedings International Conference on Information, Communications and Signal Processing ICICS, Dec. 2007, Singapore.

  • N. Khademi, M.A. Akhaee, S.M. Ahadi, M. Moradi and A. Kashi, "Audio Watermarking based on Quantization Index Modulation in the Frequency Domain," to appear in Proceedings IEEE International Conference on Signal Processing and Communications, ICSPC, Nov. 2007, Dubai.

  • D. Gharavian and S.M. Ahadi, "Evaluation of the Effect of Prosodic Parameters on Gender Dependent Speech Recognition in Farsi Language," to appear in Proceedings International Conference on Speech and Computer (SPECOM), Oct. 2007, Moscow.

  • A. H. Hajahmadi, M.M. Homayounpour and S.M. Ahadi, "Modified Fuzzy Possibilistic C-Means Clustering for Large and Noisy Databases," in Proceedings The Joint Congress on Fuzzy and Intelligent Systems (ISFS), Aug. 2007, Mashad, Iran.

  • G. Farahani, S.M. Ahadi and M.M. Homayounpour, “Improved Autocorrelation-based Noise Robust Speech Recognition Using Kernel-based Cross Correlation And Overestimation Parameters,” in Proceedings European Signal Processing Conference (EUSIPCO), Sep. 2007, Poznan, Poland.

  • A. Esmaeili, S.M. Ahadi and M.A. Fassihi, “A Non-Causal Approach to Voice Activity Detection in Adverse Environments Using A Novel Noise Estimator,” in Proceedings European Signal Processing Conference (EUSIPCO), Sep. 2007, Poznan, Poland.

  • S.S. Shariati, S.M. Ahadi, K. Mohammadi, “Front-End Post-Processing Using Histogram Equalization Combined With ARMA Filtering for Noise Robust Speech Recognition,” in Proceedings European Signal Processing Conference (EUSIPCO), Sep. 2007, Poznan, Poland.

  • L. Ardakanian and S.M. Ahadi, “A Hybrid Speaker Segmentation and Clustering System in a Multi-Speaker Environment,” to appear in Proc. 15th Iranian Conference on Electrical Engineering, May 2007, Tehran (in Persian).

  • A.H. Haj-ahmadi, M.M. Homayounpour, G. Farahani and S.M. Ahadi, “Noise-robust speaker identification using speech autocorrelation spectral peaks,” in Proc. 12th Computer Society of Iran Annual Conference, February 2007, Tehran (in Persian).

  • F. Golshan, S.M. Ahadi and S.S. Shariati, “Adaptive ARMA Filtering and Energy Normalization for Robust Speech Recognition,” in Proc. International Symposium on Signal Processing and its Applications (ISSPA), February 2007, Sharjah.

  • G. Farahani, S.M. Ahadi, M.M. Homayounpour and A. Kashi, “Consideration of Correlation Between Noise and Clean Speech Signals in Autocorrelation-based Robust Speech Recognition,” in Proc. International Symposium on Signal Processing and its Applications (ISSPA), February 2007, Sharjah.

2006                                                                                                                                     [ TOP ]

  • D. Gharavian and S.M. Ahadi, "Recognition of Emotional Speech and Speech Emotion in Farsi",in Proc. International Symposium on Chinese Spoken Language Processing, December 2006,Singapore.

  • G. Farahani, S.M. Ahadi and M.M. Homayounpour, "Robust Feature Extraction based on Spectral Peaks of Group Delay and Autocorrelation Function and Phase Domain Analysis", in Proc.ICSLP-06, Pittsburgh, Pennsylvania.

  • G. Farahani, S.M. Ahadi, M.M. Homayounpour and A. Kashi, “Robust Feature Extraction Using Spectral Peaks of the Filtered Higher Lag Autocorrelation Sequence of the Speech Signal", in Proc. IEEE International Symposium on Signal Processing and Information Technology (ISSPIT) 2006, Vancouver.

  • G. Farahani, S.M. Ahadi and M.M. Homayounpour, “Use of Spectral Peaks in Autocorrelation and Group Delay Domains for Robust Speech Recognition,” in Proc. ICASSP-06, May 14-19,Toulouse, France.

  • A. Esmaeili, S.M. Ahadi and M.A. Fassihi, "Using Long-Term Speech Information to Improve a Voice Activity Detector based on the Statistical Likelihood Ratio Test,” in Proc. 14th Iranian Conference on Electrical Engineering, May16-18, 2006, Tehran, Iran.

  • G. Farahani, S.M. Ahadi and M.M. Homayounpour, “Using Autocorrelation and Group Delay Spectral Peaks for Robustness in Noisy Speech Recognition,” in Proc. 14th Iranian Conference on Electrical Engineering, May16-18, 2006, Tehran, Iran (In Persian).

  • E. Shokri and S.M. Ahadi, “Robust Speech Recognition Using Viterbi Path Accuracy Probability," in Proc. IEEE Benelux/DSP Valley Signal Processing Symposium (SPS-DARTS) 2006, March 28-29, Antwerp, Belgium.

  • A. Esmaeili, S.M. Ahadi and M.A. Fassihi, "Voice Activity Detection based on Speech Enhancement and Long-term Spectral Divergence", in Proc. 11th Computer Society of Iran Annual Conference, January 24-26, 2006, Tehran, Iran (In Persian).

2005                                                                                                                                     [ TOP ]

  • G. Farahani, S.M. Ahadi and M.M. Homayounpour, “Robust Feature Extraction using Group Delay Function for Speech Recognition,” in Proc. SPECOM’05, October 17-19, Patras, Greece.

  • E. Shokri and S.M. Ahadi, “A New Approach in Recognition of Partly Corrupted Words,” in Proc.SPECOM’05, October 17-19, Patras, Greece.

  • D. Gharavian and S.M. Ahadi, “The Effect of Emotion on Farsi Speech Parameters: A Statistical Evaluation,” in Proc. SPECOM’05, October 17-19, Patras, Greece.

  • G. Farahani and S.M. Ahadi, “Robust features for noisy speech recognition based on filtering and spectral peaks in autocorrelation domain”, in Proc. EUSIPCO’05, September 4-8, Antalya, Turkey.

  • M.M. Bassiri and S.M. Ahadi, “Speech Enhancement and Intelligibility Improvement by Adaptive Spectral Reconstruction Method,” in Proc. Iranian Conference on Electrical Engineering, May 2005, Zanjan, Iran (In Persian).

  • M.M. Bassiri and S.M. Ahadi, “Noise reduction and intelligibility improvement of the speech signal via a noise spectrum formation method," in Proc. 10th Computer Society of Iran Annual Conference, February 2005, Tehran, Iran (In Persian).

  • P. Olya, S.M. Ahadi and A. Fassihi, “Speech-enabled computer mouse operation for the disabled,” in Proc. 10th Computer Society of Iran Annual Conference, February 2005, Tehran, Iran (InPersian).

2004                                                                                                                                     [ TOP ]

  • S.M. Ahadi, H. Sheikhzadeh, R.L. Brennan and G.H. Freeman, “An Energy Normalization Scheme for Improved Robustness in Speech Recognition”, in Proc. ICSLP-04, Jeju, Korea.

  • D. Gharavian and S.M. Ahadi, “Use of Formants in Stressed and Unstressed Continuous SpeechRecognition”, in Proc. ICSLP-04, Jeju, Korea.

  • D. Gharavian and S.M. Ahadi, “Evaluation of the Effect of Stress on Formants in Farsi Vowels," in Proc. ICASSP-04, Montreal.

2003                                                                                                                                     [ TOP ]

  • S.M. Ahadi, H. Sheikhzadeh, R.L. Brennan, G.H. Freeman and E. Chau, “On the Use of Dynamic Spectral Parameters in Speech Recognition," in Proc. IEEE International Symposium on Signal Processing and Information Technology 2003, Darmstadt, Germany.

  • S.M. Ahadi, H. Sheikhzadeh, R.L. Brennan and G.H. Freeman, “An Efficient Front-End for Automatic Speech Recognition”, in Proc. IEEE International Conference on Electronics, Circuits and Systems 2003, Sharjah.

  • D. Gharavian and S.M. Ahadi, “Statistical Evaluation of the Influence of Stress on Pitch Frequency and Phoneme Durations in Farsi Language”, in Proc. EUROSPEECH-03, Geneva.

  • M. Khayatzadeh and S.M. Ahadi, “Evaluation of Speaker Separability of Farsi Phoneme Classes”,in Proc. Iranian Conference on Electrical Engineering, May 2003, Shiraz, Iran (In Persian).

  • S. Sharifian and S.M. Ahadi, “Speaker Adaptation in Continuous Speech recognition based on a new MAP/MLLR Combination”, in Proc. Computer Society of Iran Annual Conference, February 2003, Mashad, Iran (In Persian).

  • M. Khayatzadeh and S.M. Ahadi, “Text-Independent Speaker Identification based on Weighted Gaussian Mixture Models”, in Proc. Computer Society of Iran Annual Conference, February 2003,Mashad, Iran (In Persian).

  • M. Bahrololum and S.M. Ahadi, “Robust Recognition of Continuous Persian Speech based on Parallel Model Combination and Feature Enhancement”, in Proc. Computer Society of Iran Annual Conference, February 2003, Mashad, Iran (In Persian).

2002                                                                                                                                     [ TOP ]

  • J. Habibi and S.M. Ahadi, “Statistical Language Modeling for Farsi Continuous Speech Recognition”, in Proc. Iranian Conference on Electrical Engineering, May 2002, Tabriz, Iran (InPersian).

  • A. Taheri and S.M. Ahadi, “Continuous Persian Speech Recognition in a Medium-sized Vocabulary Using a Hybrid ANN/HMM System”, in Proc. Iranian Conference on Electrical Engineering, May 2002, Tabriz, Iran (In Persian).

2001                                                                                                                                     [ TOP ]

  • S.M. Ahadi, “Continuous Persian Speech Recognition via Improved-MAP Estimated Context-Dependent Modeling”, in Proc. ICSP-2001, Taejeon, Korea.

  • M. Parvizi and S.M. Ahadi, “Recognition of Continuous Persian Speech with Medium-sized Vocabulary”, in Proc. Iranian Conference on Electrical Engineering, May 2001, Tehran (In Persian)

2000                                                                                                                                     [ TOP ]

  • S.M. Ahadi, “Reduced Context Sensitivity in Persian Speech Recognition via Syllable Modeling”, in Proc. SST-2000, Canberra, Australia.

  • D. Gharavian, H.Sheikhzadeh and S.M. Ahadi, “An Experimental Multi-Speaker Study on Farsi Phoneme Duration Rules Using Automatic Alignment”, in Proc. SST-2000, Canberra, Australia.

  • M.R. Mirhosseini and S.M. Ahadi, “Weighted Projection Measure for Robust Persian SpeechRecognition”, in Proc. Iranian Conference on Electrical Engineering, May 2000, Isfahan (In Persian).

  • M. Shirzad and S.M. Ahadi, “Time Alignment of Persian Continuous Speech”, in Proc. Iranian Conference on Electrical Engineering, May 2000, Isfahan (In Persian).

 

  Speech Processing Research Lab., 3rd floor Abou-Ray-Han Building, Amirkabir University of Technology (Tehran Polytechnic), Hafez Ave., Tehran, Iran.   Tel: +98-21-6454-3392

Last Updated: 29 November 2007