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Articles by Saiful Islam
Total Records ( 2 ) for Saiful Islam
  Saiful Islam and Rafiqul Islam
  Losing information causes losing power. Information is lost when the input vector cannot be uniquely recovered from the output vector of a combinational circuit. The input vector of reversible circuit can be uniquely recovered from the output vector. In this study we have emphasized on the design of reversible adder circuits that is efficient in terms of gate count, garbage outputs and quantum cost and that can be technologically mapped. It has been analyzed and demonstrated that the results of our proposed adder circuits shows better performance compared to similar type of existing designs. Technology independent equations required to evaluate these circuits have also been given.
  S.M. Kamruzzaman , A.N.M. Rezaul Karim , Saiful Islam and Emdadul Haque
  Speech recognition and speaker identification are important for authentication and verification in security purpose, but they are difficult to achieve. Speaker identification methods can be divided into text-independent and text-dependent. This study presents a technique of text-dependent speaker identification using MFCC-domain Support Vector Machine (SVM). In this research, Mel-Frequency Cepstrum Coefficients (MFCCs) and their statistical distribution properties are used as features, which will be inputs to the neural network. This research firstly used Sequential Minimum Optimization (SMO) learning technique for SVM that improve performance over traditional techniques Chunking, Osuna. The cepstrum coefficients representing the speaker characteristics of a speech segment are computed by nonlinear filter bank analysis and discrete cosine transform. The speaker identification ability and convergence speed of the SVMs are investigated for different combinations of features. Extensive experimental results on several samples show the effectiveness of the proposed approach.
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