Yazar "Arslan, Özkan" için listeleme
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Automated detection of heart valve disorders with time-frequency and deep features on PCG signals
Arslan, Özkan (Elsevier Sci Ltd, 2022)Heart valve diseases (HVDs) can cause cardiac arrhythmias, heart attacks, and sudden cardiac death if not diagnosed early. Therefore, the detection of HVDs is critical in order to avoid heart-related mortality. The focus ... -
Classification of Pathological and Healthy Voice Using Perceptual Wavelet Packet Decomposition and Support Vector Machine
Arslan, Özkan (Institute of Electrical and Electronics Engineers Inc., 2020)In this study, a new approach has been presented based on perceptual wavelet packet transform and support vector machines for analysis and classification of pathological and healthy voice signals. Feature extraction and ... -
Comparison of the psychometric properties of three commonly used fall risk assessment tools: a prospective observational study for stroke patients
Arslan, Özkan; Tosun, Z. (Taylor and Francis Ltd., 2021)Background: A reliable tool recommendation is needed to identify the risk of falling in hospitalized stroke patients. Objectives: The aim of this study was to identify the most reliable fall risk assessment tool among the ... -
Determination of Optimum Parameters for Cochlear Implants Speech Processors by Using Objective Measures
Arslan, Özkan (TUBITAK, 2022)In a cochlear implant (CI) speech processor, several parameters such as channel numbers, bandwidths, rectification type, and cutoff frequency play an important role in acquiring enhanced speech. The effective and general ... -
Developing a GMDH-type neural network model for spatial prediction of NOx : A case study of Çerkezköy, Tekirdağ
Özkal, Can Burak; Arslan, Özkan (2022)Air pollution-induced issues involve public health, environmental, agricultural and socio-economic aspects. Therefore, decision-makers need low-cost, efficient tools with high spatiotemporal representation for monitoring ... -
Effect of electric field on contact angle and droplet shape in XLPE dielectric materials
Karhan, Mustafa; Çakır, Musa Faruk; Arslan, Özkan; Issi, Fatih; Eyupoglu, Volkan (Gazi Univ, Fac Engineering Architecture, 2021)XLPE dielectric materials have an important place in electricity transmission and distribution. The aging of XLPE dielectric materials during the service period is inevitable. The surface properties of XLPE dielectric ... -
Effect of Hilbert-Huang transform on classification of PCG signals using machine learning
Arslan, Özkan; Karhan, Mustafa (King Saud bin Abdulaziz University, 2022)Heartbeat sounds are biological signals used in the early diagnosis of cardiovascular diseases. Digital heartbeat sound recordings, called phonocardiogram (PCG), are used in the determination and automatic classification ... -
Evaluation of Single-Channel Speech Enhancement Algorithms by Using Objective Quality and Intelligibility Measures
Arslan, Özkan; Engin, Erkan Zeki (IEEE, 2018)In this study, single-channel speech enhancement algorithms were evaluated with objective quality and objective intelligibility measures using Turkish speech database. The clean 30 sentences from the METU database are ... -
Evaluation of single-channel speech enhancement algorithms by using objective quality and intelligibility measures
Arslan, Özkan; Engin, Erkan Zeki (Institute of Electrical and Electronics Engineers Inc., 2018)In this study, single-channel speech enhancement algorithms were evaluated with objective quality and objective intelligibility measures using Turkish speech database. The clean 30 sentences from the METU database are ... -
Investigation of the effect of roughness value on the wettability behavior under electric field in XLPE materials used in medium and high voltage applications
Karhan, Mustafa; Çakır, Musa Faruk; Arslan, Özkan (Springer Science and Business Media Deutschland GmbH, 2021)XLPE material, which is widely used as a polymeric insulator in medium and high voltage applications, plays an active and important role in electricity transmission and distribution. The aging of XLPE materials due to ... -
Noise robust voice activity detection based on multi-layer feed-forward neural network
Arslan, Özkan; Engin, Erkan Zeki (Istanbul University, 2019)This paper proposes a voice activity detection (VAD) method based on time and spectral domain features using multi-layer feed-forward neural network (MLF-NN) for various noisy conditions. In the proposed method, time ... -
Prediction of Undrained Shear Strength by the GMDH-Type Neural Network Using SPT-Value and Soil Physical Properties
Kim, Mintae; Okuyucu, Osman; Ordu, Ertuğrul; Ordu, Şeyma; Arslan, Özkan; Ko, Junyoung (MDPI, 2022)This study presents a novel method for predicting the undrained shear strength (c(u)) using artificial intelligence technology. The c(u) value is critical in geotechnical applications and difficult to directly determine ... -
Speech enhancement using adaptive thresholding based on gamma distribution of Teager energy operated intrinsic mode functions
Arslan, Özkan; Engin, Erkan Zeki (Turkiye Klinikleri, 2019)This paper introduces a new speech enhancement algorithm based on the adaptive threshold of intrinsic mode functions (IMFs) of noisy signal frames extracted by empirical mode decomposition. Adaptive threshold values are ...