Search Results for author: Dorra Ben Ayed

Found 7 papers, 0 papers with code

Incorporating Belief Function in SVM for Phoneme Recognition

no code implementations22 Jul 2015 Rimah Amami, Dorra Ben Ayed, Nouerddine Ellouze

The main idea of this algorithm is based on the principle of the margin maximization to find an hyperplane which separates the data into two different classes. In this paper, SVM is applied to phoneme recognition task.

The challenges of SVM optimization using Adaboost on a phoneme recognition problem

no code implementations22 Jul 2015 Rimah Amami, Dorra Ben Ayed, Noureddine Ellouze

The use of digital technology is growing at a very fast pace which led to the emergence of systems based on the cognitive infocommunications.

Practical Selection of SVM Supervised Parameters with Different Feature Representations for Vowel Recognition

no code implementations22 Jul 2015 Rimah Amami, Dorra Ben Ayed, Noureddine Ellouze

It is known that the classification performance of Support Vector Machine (SVM) can be conveniently affected by the different parameters of the kernel tricks and the regularization parameter, C. Thus, in this article, we propose a study in order to find the suitable kernel with which SVM may achieve good generalization performance as well as the parameters to use.

General Classification

An Empirical Comparison of SVM and Some Supervised Learning Algorithms for Vowel recognition

no code implementations22 Jul 2015 Rimah Amami, Dorra Ben Ayed, Noureddine Ellouze

In this article, we conduct a study on the performance of some supervised learning algorithms for vowel recognition.

A Multi Level Data Fusion Approach for Speaker Identification on Telephone Speech

no code implementations27 Jun 2014 Imen Trabelsi, Dorra Ben Ayed

Several speaker identification systems are giving good performance with clean speech but are affected by the degradations introduced by noisy audio conditions.

Speaker Identification

On the Use of Different Feature Extraction Methods for Linear and Non Linear kernels

no code implementations27 Jun 2014 Imen Trabelsi, Dorra Ben Ayed

The speech feature extraction has been a key focus in robust speech recognition research; it significantly affects the recognition performance.

Robust Speech Recognition Speaker Identification +1

Improved Frame Level Features and SVM Supervectors Approach for the Recogniton of Emotional States from Speech: Application to categorical and dimensional states

no code implementations23 Jun 2014 Imen Trabelsi, Dorra Ben Ayed, Noureddine Ellouze

The purpose of speech emotion recognition system is to classify speakers utterances into different emotional states such as disgust, boredom, sadness, neutral and happiness.

Speech Emotion Recognition

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