Publication


Selected Journal Publications

2013

  • Tabibian, S., Akbari, A., Nasersharif, B. “Keyword spotting using an evolutionary-based classifier and discriminative features.” Engineering Applications of Artificial Intelligence, 2013.

2012

  • Mohammadi, M., Raahemi, B., Akbari, A., Nassersharif, B. (2012). “New classdependent feature transformation for intrusion detection systems.” Security and Communication Networks, Vol. 5, No. 12, pp. 1296-1311, 2012.
  • Mohammadi, M., Raahemi, B., Akbari, A., Nassersharif, B., Moeinzadeh, H.,“Improving linear discriminant analysis with artificial immune system-based evolutionary algorithms.” Information Sciences189, pp. 219-232, 2012.
  • Shahab Jalalvand, Ahmad Akbari, Babak Nassersharif, A Classifier Combination Approach for Farsi Accents Recognition, 20th Iranian Conference on Electrical Engineering, Tehran, Iran, .pdf
  • Roohollah Abdipour, Ahmad Akbari, Babak Nassersharif, Two-Microphone Speech Enhancement Using a Learned Binary Mask", 20th Iranian Conference on Electrical Engineering, Tehran, Iran
  • Behzad Zamani Dehkordi, Roohollah Abdipour, Sasan Motaghed, Ali Khooshe Charkh, Hooman Sina and Mohammad Sadegh ShahidZadeh, "Reinforced Concrete Frame Failure Prediction using Neural Network Algorithm", Journal of Applied Sciences, DOI: 10.3923/jas.2012, 2012. view pape

2011

  • Zamani B., Akbari A., Nassersharif B. and Jalalvand A., Optimized Discriminative Transformations for Speech Features Based on Minimum Classification Error, Pattern Recognition Letters, Vol. 32, pp. 948–955, 2011.
  • R. Sahraeian, M. Mohammadi, A. Akbari, A. Ayatollahi, Evolutionary Eigenvoice MLLR Speaker Adaptation, Procedia-Computer Science Journal (Elsevier),  Vol. 3, 2011.
  • Iranmanesh S. M., Mohammadi M., Akbari A., Nassersharif B., “Improving Detection Rate in Intrusion Detection Systems Using FCM Clustering to Select Meaningful Landmarks in Incremental Landmark Isomap Algorithm”, Theoretical and Mathematical Foundations of Computer Science, pp. 46-53, 2011.
  • Behzad Zamani,Ahmad Akbari, Babak Nasersharif, Azarakhsh Jalalvand,Discriminative Transformation for Speech Features Based on Genetic, IEICE Electronics Express (ISI Journal), Vol. 7, No. 4, pp.247-253, 2010.

2010

  • Shima Tabibain, Akram Shokri, Ahmad Akbari, Babak Nasersharif, Performance evaluation for an HMM-based keyword spotter and a Large-magin-based one in noisy environments, WCIT 2010, indexed by Science Direct
  • هدي كاوياني شهرضايي، شيما طبيبيان، احمد اكبري، معرفي فيلترهاي مناسب براي بهسازي گفتار در حوزه موجك، مجله علمي- پژوهشي انجمن كامپيوتر ايران
  • اكرم شكري، شيما طبيبيان، بابك ناصرشريف، احمد اكبري، جهانشاه كبوديان، گفتاركاوي زبان فارسي در محيط تلفني به عنوان ابزاري سودمند در نرم افزارهای كنگره فناوري اطلاعات و ارتباطات ايران

2009

  • Mohsen Rahmani, Nima Yousefian, Ahmad Akbari “Energy-based speech enhancement technique for hands-free communication” Electronic Letters 1st January 2009 Vol.45 No.
  • Abbasian, Houman; Nasersharif, Babak; Akbari, Ahmad, "Class Dependent LDA Optimization Using Genetic Algorithm for Robust MFCC Extraction", Advances in Computer Science and Engineering, Communications in Computer and Information Science, Volume 6, Springer Berlin Heidelberg, 2009, p. 807
  • Shima Tabibian, Ahmad Akbari “Noise Reduction from Speech Signal based on Wavelet Transform and Kullback-leibler Divergence” International Journal of Information and Communication Technology. pp 21-27
  • محسن رحمانی،روح ا...عبدی پور، بابک ناصر شريف ،احمد اکبري " حذف نویز از سیگنال گفتار با اصلاح طیف فرکانسی سیگنال نویزی بررسی روش های تخمین سیگنال به نویز محلی و کنترل و شکل دهی نویز باقیمانده"،نامه پژوهشکده هوشمند علائم،شماره 2، سال 1387،صفحات 41-56

2008

  • Nima Yousefian, Mohsen Rahmani, Ahmad Akbari “Enhancing Accuracy of Source Localization in High Reverberation Environment with Microphone Array ” Springer –Verlag Berlin Heidelberg 2008
  • Rahmani M., Akbari A., Ayad B., "Phase Based Cross-PSD Noise Estimation for Dual Microphone Speech Enhancement in Diffuse Noise Field", Signal processing, Accepted for publication, 2008.
  • Rahmani M., Akbari A., Ayad B., Derakhshan N., “Minimum Statistics Noise Cross PSD Estimator for Two-Microphone Speech Enhancement", Journal of Zhejiang University, Accepted for publication, 2008.
  • Rahmani M., Akbari A., Ayad B., "An Iterative Method for Cross-PSD Noise Estimation for Dual Microphone Speech Enhancement ", Applied acoustics, Accepted for publication, 2008.
  • M. Rahmani, A. Akbari, B. Ayad, B. Lithgow “Noise cross PSD estimation using phase information in diffuse noise field” Signal Processing Journal

2007

  • Nasersharif B., Akbari A., “SNR-Dependent Compression of Enhanced Mel Sub-Band Energies for Compensation of Noise Effects on MFCC Features”, Pattern Recognition Letters, Special Issue on Advances in Pattern Recognition for Speech and Audio Processing, Vol. 28, Iss. 11, pp. 1320-1326, August 2007.

2006

  • Nasersharif B., Akbari A., “Sub-Band Weighted Projection Measure for Sub-Band Speech Recognition in Noise”, IEE Electronics letters, Vol. 42, No. 14, pp. 829-831, 6th July 2006.

2005

  • Nasersharif B., Akbari A., “Improved HMM Entropy and Sub-Band Weighted Projection Measure For Robust Sub-Band Speech Recognition”, IAEEE Journal, vol. 2, No.1, pp. 3-16, 2005. (In Farsi)

2003

  • Nasersharif B., Rahmani M., Akbari A., “Robust Speech Recognition Based On Mapping Noisy Features to Clean Features”, CSI Journal on Computer Science and Engineering, Vol. 1, No. 4, pp.31-38, winter 2003.


Some Conference Papers

2009

  • Yousefian N., Rahmani M., Akbari A. “Power Level Difference as a Criterion for Speech Enhancement”, Accepted in IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2009, Taiwan.
  • Rahmani M., Yousefian N., Akbari A., ”Energy Based Speech Enhancement Technique for Hands Free Communication”, Electronics Letter, Vol. 45, pp 85-86, 2009.
  • Yousefian N., Rahmani M., Akbari A., “Enhancing Accuracy of Source Localization in High Reverberation Environment with Microphone Array”, Springer Communications in Computer and Information Science Series, Vol.6, pp 803-806, 2009.
  • Rahmani M., Yousefian N., Akbari A., Ayad B. “A Real Time Architecture for dual microphone Speech Enhancement Systems”, Accepted in 5th IEEEGCC conference, 17-19 March 2009, Kuwait.
  • هدي کاوياني، شيما طبيبيان، احمد اکبري" بهسازي گفتار بر اساس خواص تبديل موجک و فيلتر کردن ضرايب تبديل" چهاردهمين کنفرانس ملي کامپيوتر. CSICC 2009
  • محمد مهدي فارسي نژاد، بهزاد زماني دهکردي، احمد اکبري، بابک ناصر شريف "پيشنهاد يک روش آشکار ساز صوت دو مرحله اي مبتني بر مدل مخفي مارکوف". چهاردهمين کنفرانس ملي کامپيوترCSICC 2009
  • آذرخش جلالوند، بهزاد زماني، احمد اکبري، بابک ناصر شريف "بهبود روشهاي متمايز سازي ويژگي بر اساس خطاي دسته بندي کمينه براي بازشناسي گفتار". چهاردهمين کنفرانس ملي کامپيوترCSICC 2009
  • حسين معين زاده، محمد مهدي محمدي، احمد اکبري، بابک ناصر شريف "ارايه دو روش پيش پردازش در دسته بندي جهت افزايش متمايز سازي دسته ها". چهاردهمين کنفرانس ملي کامپيوتر CSICC 2009

2008

  • Zamani B., Rahmani M., Akbari A., “Residual Noise Control for Coherence Based Dual Microphone Speech Enhancement”, International Conference on Computer and Electrical Engineering (ICCEE 2008), Thailand
  • Mohammadi M., Zamani B., Nassersharif B., Rahmani M., Akbari A., “A Wavelet Based Speech Enhancement Method Using Noise Classification and Shaping”, INTERSPEECH 2008.
  • Zamani B., Tabibian S., Mohammadi M., Nassersharif B., Akbari A., “A Speech Enhancement Method Based On Voiced/Unvoiced Detector in Wavelet Domain”, 13th Annual International Computer Society of Iran Computer Conference (CSICC 2008).
  • Tabibian S., Zamani B., Nassersharif B., Akbari A., “Designing the Wavelet Adapted To the Speech Signal for Noise Reduction And Evaluating Its Parameters”, 13th Annual International Computer Society of Iran Computer Conference (CSICC 2008).
  • Mohammadi M., Nasersharif B., Akbari A., “Combinational Methods for Improvement of Packet-Loss Recovery In Distributed Speech Recognition”, 3rdInternational Symposium on Communications, Control and Signal Processing, IEEE Signal processing Society (ISCCSP 2008).
  • Abbasian H., Nasersharif B., Akbari A., “Class Dependent LDA Optimization Using Genetic Algorithm for Robust MFCC Extraction”, 3rd International Symposium on Communications, Control and Signal Processing (ISCCSP), 2008.
  • Tabibian S., Akbari A., “Noise Reduction from Speech Signal Based on Wavelet Transform and Kullback-Leibler Divergence”, 4th international symposium on telecommunications indexed by IEEE (IST2008), 2008.
  • Yousefian N., Rahmani M., Akbari A., “Enhancing Accuracy of Source Localization in High Reverberation Environment with Microphone Array”, 13thInternational CSI Conference, 2008.
  • Yousefian N., Rahmani M., Akbari A., “Sound Source Localization in 3-d Space by a Triple-Microphone Algorithm”, In proceeding of 14th Asia Pacific Conference on Communication (APCC2008), Tokyo, Japan, October 14-16, 2008.
  • Yousefian N., Rahmani M., Akbari A., “Microphone Array Speech Enhancement Based on Difference in Power Levels” , submitted to 17th Iranian Conference in Electrical Engineering ,IUST, Tehran , Iran .
  • Abbasian H., Nasersharif B., Akbari A., Rahmani M., “Optimized Linear Discriminant Analysis for Extracting Robust Speech Features”, The 3rdInternational Symposium on Communications, Control and Signal Processing, St Julians, Malta, Mar. 2008.

2007

  • Rahmani M., Akbari A., Ayad B.,"A Modified Coherence Based Method for Dual Microphone Speech Enhancement", IEEE conference on signal processing, Dubai, Nov. 2007
  • Derakhshan N., Ayatollahi A., Akbari A., Rahmani M., “Noise Power Spectrum Estimation Using Time-Variant Spectral Smoothing and Low-Delay Minima Tracking”, SPECOM’2007, Moscow, Russia, Oct. 2007.
  • Derakhshan N., Rahmani M, Akbari A., Ayatollahi A., “Evaluation of the Musical Noise in the Noise Suppressor Systems”, 16th annual international electrical engineering conference, Tehran Iran. May 2007. (In Farsi)
  • Derakhshan N., Rahmani M, Akbari A., Ayatollahi A., “Detection and Evaluation of the Musical Noise in the Noise Reduction Systems”, 13th international conference of Computer society of Iran, Tehran Iran. March 2007.
  • Zamani B., Rasoulzadeh S., Nasersharif B., Akbari A. “Computational Complexity Reduction in Wavelet Based Noise Reduction System with WOLA”, 12th Annual Conference of Computer Society of Iran (CSICC2007), Iran, 2007.
  • Tabibian S., Zamani B., Nasersharif B., Akbari A., “Designing the Wavelet Adapted to the Speech Signal for Noise Reduction”, Information and Knowledge Technology (IKT2007), Mashhad, Iran, Nov. 27-29, 2007.
  • Nasersharif B., Akbari A., Homayounpour M., “Mel Sub-Band Filtering and Compression for Robust Speech Recognition”, Interspeech Conference, pp. 1102-1105, September 2007.
  • Abbasian H., Nasersharif B., Akbari A., “Class-Dependent PCA Optimization Using Genetic Programming for Robust MFCC Extraction”, 3rd Conference on Information and Knowledge technology (IKT), September 2007.

2006

  • Mohammadi M., Nasersharif B., Rahmani M., Akbari A., "The New Sub-Band Level Voice Activity Detector Based On Wavelet Transform", 15thInternational Electrical Engineering Conference, Tehran, Iran. May 2006. (In Farsi)
  • Rahmani M., Mohammadi M., Akbari A., “Residual Noise Shaping for Speech Enhancement Applications”, 15th Annual International Electrical Engineering Conference, Tehran, Iran. May 2006. (In Farsi)
  • Zamani B., Rasoulzadeh S., Nassersharif B., Akbari A., “Using WOLA Filter Bank in Wavelet Based Noise Reduction System to Reduce Computational Complexity”, 14th Iranian Conference on Electrical Engineering (ICEE2006), Iran, 2006.
  • Zamani B., Nassersharif B., Akbari A., “Evaluation of Critical Bands Effects and Wavelet Filter Bank Parameters on Speech Enhancement Methods”, 11th Annual Conference of Computer Society of Iran (CSICC2006), Iran, 2006.
  • Nasersharif B., Akbari A., “A Framework for Robust MFCC Feature Extraction Using SNR-Dependent Compression of Enhanced Mel Filter Bank Energies”, 9th International Conference on Spoken Language Processing (ICSLP), pp. 33-36, September 2006.
  • Nasersharif B., Akbari A., Homayounpour M., “Spectral Peaks Enhancement for Extracting Robust Speech Features”, Proceeding of 14th European Signal Processing Conferences (EUSIPCO), 2006.
  • Nasersharif B., Akbari A., Homayounpour M., “Application of HMM Adaptation and Robust Features to Sub-Band Speech Recognition in Noise”, 11thInternational CSI Computer Conference (CSICC2006), Vol. 2, pp.215-219, Tehran, Iran, January 2006.
  • Rahmani M., Abdipoor R., Akbari A., Ayad B., “Background Noise Control for Speech Enhancement Applications”, Proceeding of 11thCSICC, pp. Tehran, 2006.

2005

  • Nasersharif B., Akbari A., “Sub-Band Weighted Projection Measure for Robust Sub-Band Speech Recognition”, EUROSPEECH Conference, pp. 945-948, Lisbon, 2005.
  • Nasersharif B., Akbari A., “Improved HMM Entropy for Robust Sub-Band Speech Recognition”, 13th European Signal Processing Conferences (EUSIPCO), Antalya, Turkey, 2005.
  • Nasersharif B., Homayounpour M., Akbari A., “Combination of Model-Based Methods and Multi-Band Speech Processing for Robust Speech Recognition”, Proceeding of 13th ICEE, pp. 209-214, Iran, Zanjan, 2005. (In Farsi)
  • Nasersharif B., Akbari A., Homayounpour M., "Two New Probability Weighting Methods for Robust Multi-Band Speech Recognition", Proceeding of 10thCSICC, vol. 1, pp. 288-296, Tehran, 2005. (In Farsi)
  • Rahmani M., Abdipoor R., Akbari A., "A New Method for SNR Estimation and Its Application in Speech Enhancement", Proceeding of 10th CSICC, vol. 1, pp. 313-320, Tehran, 2005. (In Farsi)

2004

  • Nasersharif B., Akbari A., “Application of Wavelet Transform and Wavelet Thresholding in Robust Sub-Band Speech Recognition”, 12th European Signal Processing Conferences (EUSIPCO), pp 345-348, Vienna, Austria, 2004.
  • Nasersharif B., Feizi M., Akbari A., "Human Ear Modeling and Its Application to Speech Recognition and Enhancement", Proceeding of 9th CISCC, pp. 225-232, Tehran, 2004. (In Farsi)

2002

  • Akbari A., Rahmani M., Nasersharif B., Soleimani S., "Compensation of Noise Effects on Cepstral Coefficients for Speech Recognition", Proceeding of 10th ICEE, pp. 432-439, 2002. (In Farsi)
  • Akbari A., Rahmani M., Nasersharif B., “Noise Compensation in Feature Domain for Speech Recognition”, 10th Annual International Electrical Engineering Conference, Tabriz, Iran. May 2002. (In Farsi)
  • Akbari A., Nasersharif B., Rahmani M., Rahmani A. T., "Application of Noise Compensation Methods for Farsi Speech Recognition", Proceeding of 7thCSICC, pp. 546-553, Tehran, 2002. (In Farsi)
  • Rahmani M., Abdipoor R., Akbari A., “A New SNR Estimation for Speech Enhancement”, 11th International Conference of Computer Society of Iran, Tehran Iran. March 2005. (In Farsi)
  • Akbari A., Rahmani M., Nasersharif B., “Noise Compensation Methods for Robust Speech Recognition”, 7th International Conference of Computer Society of Iran, Tehran Iran. March 2002. (In Farsi)

2001

  • Nasersharif B., Akbari A., "Syllable Based Farsi Digit Recognition Using Hidden Markov Models", Proceeding of 6th CSICC, Isfahan, pp. 432-437, Iran, 2001. (In Farsi)