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    Wyświetlanie 1-3 z 3
    Tytuł:
    A new auto adaptive fuzzy hybrid particle swarm optimization and genetic algorithm
    Autorzy:
    Dziwiński, Piotr
    Bartczuk, Łukasz
    Paszkowski, Józef
    Powiązania:
    https://bibliotekanauki.pl/articles/1837533.pdf
    Data publikacji:
    2020
    Wydawca:
    Społeczna Akademia Nauk w Łodzi. Polskie Towarzystwo Sieci Neuronowych
    Tematy:
    hybrid methods
    Particle Swarm Optimization
    Genetic Algorithm
    fuzzy systems
    multimodal function
    Opis:
    The social learning mechanism used in the Particle Swarm Optimization algorithm allows this method to converge quickly. However, it can lead to catching the swarm in the local optimum. The solution to this issue may be the use of genetic operators whose random nature allows them to leave this point. The degree of use of these operators can be controlled using a neuro-fuzzy system. Previous studies have shown that the form of fuzzy rules should be adapted to the fitness landscape of the problem. This may suggest that in the case of complex optimization problems, the use of different systems at different stages of the algorithm will allow to achieve better results. In this paper, we introduce an auto adaptation mechanism that allows to change the form of fuzzy rules when solving the optimization problem. The proposed mechanism has been tested on benchmark functions widely adapted in the literature. The results verify the effectiveness and efficiency of this solution.
    Źródło:
    Journal of Artificial Intelligence and Soft Computing Research; 2020, 10, 2; 95-111
    2083-2567
    2449-6499
    Pojawia się w:
    Journal of Artificial Intelligence and Soft Computing Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Performance analysis of data fusion methods applied to epileptic seizure recognition
    Autorzy:
    Ludwig, Simone A.
    Powiązania:
    https://bibliotekanauki.pl/articles/2147119.pdf
    Data publikacji:
    2022
    Wydawca:
    Społeczna Akademia Nauk w Łodzi. Polskie Towarzystwo Sieci Neuronowych
    Tematy:
    epilepsy
    ensemble method
    Choquet fuzzy integral fusion
    Opis:
    Epilepsy is a chronic neurological disorder that is caused by unprovoked recurrent seizures. The most commonly used tool for the diagnosis of epilepsy is the electroencephalogram (EEG) whereby the electrical activity of the brain is measured. In order to prevent potential risks, the patients have to be monitored as to detect an epileptic episode early on and to provide prevention measures. Many different research studies have used a combination of time and frequency features for the automatic recognition of epileptic seizures. In this paper, two fusion methods are compared. The first is based on an ensemble method and the second uses the Choquet fuzzy integral method. In particular, three different machine learning approaches namely RNN, ML and DNN are used as inputs for the ensemble method and the Choquet fuzzy integral fusion method. Evaluation measures such as confusion matrix, AUC and accuracy are compared as well as MSE and RMSE are provided. The results show that the Choquet fuzzy integral fusion method outperforms the ensemble method as well as other state-of-the-art classification methods.
    Źródło:
    Journal of Artificial Intelligence and Soft Computing Research; 2022, 12, 1; 5--17
    2083-2567
    2449-6499
    Pojawia się w:
    Journal of Artificial Intelligence and Soft Computing Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A class of neuro-computational methods for assamese fricative classification
    Autorzy:
    Patgiri, C.
    Sarma, M.
    Sarma, K. K.
    Powiązania:
    https://bibliotekanauki.pl/articles/91763.pdf
    Data publikacji:
    2015
    Wydawca:
    Społeczna Akademia Nauk w Łodzi. Polskie Towarzystwo Sieci Neuronowych
    Tematy:
    neuro-computational classifier
    fricative phonemes
    Assamese language
    Recurrent Neural Network
    RNN
    neuro fuzzy classifier
    linear prediction cepstral coefficients
    LPCC
    self-organizing map
    SOM
    adaptive neuro-fuzzy inference system
    ANFIS
    klasyfikator neuronowy
    klasyfikator neuronowo rozmyty
    sieć Kohonena
    Opis:
    In this work, a class of neuro-computational classifiers are used for classification of fricative phonemes of Assamese language. Initially, a Recurrent Neural Network (RNN) based classifier is used for classification. Later, another neuro fuzzy classifier is used for classification. We have used two different feature sets for the work, one using the specific acoustic-phonetic characteristics and another temporal attributes using linear prediction cepstral coefficients (LPCC) and a Self Organizing Map (SOM). Here, we present the experimental details and performance difference obtained by replacing the RNN based classifier with an adaptive neuro fuzzy inference system (ANFIS) based block for both the feature sets to recognize Assamese fricative sounds.
    Źródło:
    Journal of Artificial Intelligence and Soft Computing Research; 2015, 5, 1; 59-70
    2083-2567
    2449-6499
    Pojawia się w:
    Journal of Artificial Intelligence and Soft Computing Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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