A biomedical system based on fuzzy discrete hidden Markov model for the diagnosis of the brain diseases
Expert Systems with Applications, ISSN: 0957-4174, Vol: 35, Issue: 3, Page: 1104-1114
2008
- 20Citations
- 15Captures
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Article Description
Because it is a non-invasive, easy to apply and reliable technique, transcranial doppler (TCD) study of the adult intracerebral circulation has increased enormously in the last 10 years. In this study, a biomedical system has been implemented in order to classify the TCD signals recorded from the temporal region of the brain of 82 patients as well as of 24 healthy people. The diseases were investigated cerebral aneurysm, brain hemorrhage, cerebral oedema and brain tumor. The system is composed of feature extraction and classification parts, basically. In the feature extraction stage, the linear predictive coding analysis and cepstral analysis were applied in order to extract the cepstral and delta-cepstral coefficients in frame level as feature vectors. In the classification stage, discrete hidden Markov model (DHMM) based methods were used. In order to avoid loosing information due to vector quantization and to increase the classification performance, a fuzzy approach based similarity was applied to implement the DHMM. The performance of the proposed Fuzzy DHMM (FDHMM) was compared with some methods such as DHMM, artificial neural network (ANN), neuro-fuzzy approaches and obtained better classification performance than these methods.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/S0957417407003284; http://dx.doi.org/10.1016/j.eswa.2007.08.006; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=44949256249&origin=inward; https://linkinghub.elsevier.com/retrieve/pii/S0957417407003284; https://api.elsevier.com/content/article/PII:S0957417407003284?httpAccept=text/xml; https://api.elsevier.com/content/article/PII:S0957417407003284?httpAccept=text/plain; https://dx.doi.org/10.1016/j.eswa.2007.08.006
Elsevier BV
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