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- W1914298131 abstract "Teshis sistemleri icin ozbaglasimli (autoregressive - AR) ve ozbaglasimli yuruyen ortalamali (autoregressive moving average - ARMA) metotlarin kullanimi ile isaretlerden oznitelik cikarilmakta ve isaretlerin guc seviyesi-frekans dagilimlari istatistiksel ozellikler ile gosterilmektedir. Bu calismada, farkli kisilerden alinan oftalmik atardamar Doppler isaretlerinin spektral analizi AR ve ARMA metotlari ile gerceklestirilmis ve isaret hakkinda onemli bilgi iceren Doppler guc yogunluk spektrum degerleri isareti temsil eden oznitelik vektorleri olarak ele alinmistir. Oznitelik vektorlerinin boyutlarinin azaltilabilmesi icin Doppler guc yogunluk spektrum degerleri uzerinde istatistiksel islemler yapilmis ve siniflama isleminde kullanilan cok katmanli perseptron sinir aglarinin giris oznitelik vektorleri secilmistir. Farkli algoritmalar ile egitilen cok katmanli perseptron sinir aglarinin performanslari incelenerek AR ve ARMA metotlarinin Doppler isaretlerinin analizindeki basarisi tespit edilmistir. Gerceklestirilen aglarin toplam siniflama dogruluklari, Levenberg-Marquardt algoritmasi ile egitilen ve ARMA Doppler guc yogunluk spektrum degerlerinden cikarilan oznitelik vektorlerinin giris olarak kullanildigi cok katmanli perseptron sinir aginin oftalmik atardamar Doppler isaretlerinin siniflandirilmasinda kullanilabilecegini gostermistir." @default.
- W1914298131 created "2016-06-24" @default.
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- W1914298131 date "2004-01-01" @default.
- W1914298131 modified "2023-10-17" @default.
- W1914298131 title "AR VE ARMA METOTLARININ KULLANIMI İLE TEŞHİS SİSTEMLERİ İÇİN ÖZNİTELİK ÇIKARMA: OFTALMİK ATARDAMAR DOPPLER İŞARETLERİNİN DURUM ANALİZİ" @default.
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- W1914298131 doi "https://doi.org/10.17341/gummfd.28710" @default.
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