Recent Submissions

  • Gabor frames and deep scattering networks in audio processing 

    Bammer, Roswitha; Dörfler, Monika; Harár, Pavol (MDPI, 2019-09-26)
    This paper introduces Gabor scattering, a feature extractor based on Gabor frames and Mallat's scattering transform. By using a simple signal model for audio signals specific properties of Gabor scattering are studied. It ...
  • Privacy-preserving security solution for cloud services 

    Malina, Lukáš; Hajný, Jan; Dzurenda, Petr; Zeman, Václav (Universidad Nacional Autónoma de México, 2015-03-18)
    We propose a novel privacy-preserving security solution for cloud services. Our solution is based on an efficient non-bilinear group signature scheme providing the anonymous access to cloud services and shared storage ...
  • Parkinson Disease Detection from Speech Articulation Neuromechanics 

    Gomez-Vilda, Pedro; Mekyska, Jiří; Manuel Ferrandez, Jose; Palacios-Alonso, Daniel; Gómez-Rodellar, Andrés; Rodellar Biarge, María Victoria; Galáž, Zoltán; Smékal, Zdeněk; Eliášová, Ilona; Košťálová, Milena; Rektorová, Irena (Frontiers, 2017-08-25)
    Aim: The research described is intended to give a description of articulation dynamics as a correlate of the kinematic behavior of the jaw-tongue biomechanical system, encoded as a probability distribution of an absolute ...
  • Dual-parameter control of the pole frequency in case of universal filter with MCDU elements 

    Jeřábek, Jan; Šotner, Roman; Herencsár, Norbert; Polák, Josef; Dvořák, Jan; Koton, Jaroslav (Springer, 2016-12-01)
    This paper presents an universal filter with control of the pole frequency by two mutually independent parameters - current gain (B) and intrinsic resistance (R x) in frame of two modified current differencing unit (MCDU) ...
  • Optimized High Resolution 3D Dense-U-Net Network for Brain and Spine Segmentation 

    Kolařík, Martin; Burget, Radim; Uher, Václav; Říha, Kamil; Dutta, Malay Kishore (MDPI, 2019-02-15)
    The 3D image segmentation is the process of partitioning a digital 3D volumes into multiple segments. This paper presents a fully automatic method for high resolution 3D volumetric segmentation of medical image data using ...
  • Identification and Monitoring of Parkinson’s Disease Dysgraphia Based on Fractional-Order Derivatives of Online Handwriting 

    Mucha, Ján; Mekyska, Jiří; Galáž, Zoltán; Faúndez Zanuy, Marcos; Lopez-de-Ipina, Karmele; Zvončák, Vojtěch; Kiska, Tomáš; Smékal, Zdeněk; Brabenec, Luboš; Rektorová, Irena (MDPI, 2019-01-11)
    Parkinson’s disease dysgraphia affects the majority of Parkinson’s disease (PD) patients and is the result of handwriting abnormalities mainly caused by motor dysfunctions. Several effective approaches to quantitative PD ...
  • Comparative Study of Discrete Component Realizations of Fractional-Order Capacitor and Inductor Active Emulators 

    Tsirimokou, Georgia; Kartci, Aslihan; Koton, Jaroslav; Herencsár, Norbert; Psychalinos, Costas (World Scientific, 2018-02-06)
    Due to the absence of commercially available fractional-order capacitors and inductors, their implementation can be performed using fractional-order differentiators and integrators, respectively, combined with a ...
  • Comparative Study of Distributed Estimation Precision by Average Consensus Weight Models 

    Kenyeres, Martin; Kenyeres, Jozef (Croatian Communications and Information Society, 2017-12-21)
    Distributed algorithms for an aggregate function estimation are an important complement of many real-life applications based on wireless sensor networks. Achieving a high precision of an estimation in a shorter time can ...
  • Resistorless Current-Mode First-Order All-Pass Filter with Electronic Tuning Employing Low-Voltage CBTA and Grounded Capacitor 

    Herencsár, Norbert; Koton, Jaroslav; Lahiri, Abhirup; Ayten, Umut E.; Sagbas, Mehmet (World Scientific Publishing Company, 2018-02-01)
    In this paper, a new realization of a current-mode first-order all-pass filter (APF) using a single active building block (ABB) and one grounded capacitor is presented. As the ABB, the current backward transconductance ...
  • Series-, Parallel-, and Inter-Connection of Solid-State Arbitrary Fractional-Order Capacitors: Theoretical Study and Experimental Verification 

    Kartci, Aslihan; Agambayev, Agamyrat; Herencsár, Norbert; Salama, Khaled Nabil (IEEE, 2018-02-27)
    In the paper, general analytical formulas are introduced for the determination of equivalent impedance, magnitude, and phase, i.e. order, for n arbitrary fractional-order capacitors (FoCs) connected in series, parallel, ...
  • Universal Voltage Conveyor and its Novel Dual-Output Fully-Cascadable VM APF Application 

    Herencsár, Norbert; Koton, Jaroslav; Hanák, Pavel (MDPI, 2017-03-20)
    This letter presents a novel realization of a voltage-mode (VM) first-order all-pass filter (APF) with attractive features. The proposed circuit employs a single readily available six-terminal active device called as ...
  • Evaluation of Device-Independent Internet Spatial Location 

    Komosný, Dan; Pang, Shaoning; Mehic, Miralem; Vozňák, Miroslav (MDPI AG, 2017-05-26)
    Device-independent Internet spatial location is needed for many purposes, such as data personalisation and social behaviour analysis. Internet spatial databases provide such locations based the IP address of a device. The ...
  • Internet Geography and Real Estate Market 

    Komosný, Dan; Bulín, Martin; Ilgner, Petr (IEEE, 2017-11-09)
    This paper introduces a new spatial data resource for Internet geography. The idea is based on merging two up-to-now unrelated fields - the real estate market and Internet networking. The huge real estate market is present ...
  • Towards Robust Voice Pathology Detection 

    Harár, Pavol; Galáž, Zoltán; Alonso-Hernandez, Jesus; Mekyska, Jiří; Burget, Radim; Smékal, Zdeněk (Springer, 2019-01-02)
    Automatic objective non-invasive detection of pathological voice based on computerized analysis of acoustic signals can play an important role in early diagnosis, progression tracking and even effective treatment of ...
  • Implementation of True IoT Vision: Survey on Enabling Protocols and Hands-on Experience 

    Mašek, Pavel; Hošek, Jiří; Zeman, Kryštof; Štůsek, Martin; Kováč, Dominik; Číka, Petr; Mašek, Jan; Andreev, Sergey; Kröpfl, Franz (Hindawi Publishing Corporation, 2016-04-20)
    Internet of Things (IoT) is expected to become a driver in an emerging era of interconnected world through the advanced connectivity of smart devices, systems, and services. IoT goes beyond a broad range of Machine-to-Machine ...
  • Changes in Phonation and Their Relations with Progress of Parkinson’s Disease 

    Galáž, Zoltán; Mekyska, Jiří; Zvončák, Vojtěch; Mucha, Ján; Kiska, Tomáš; Smékal, Zdeněk; Eliášová, Ilona; Mráčková, Martina; Košťálová, Miroslava; Rektorová, Irena; Faúndez Zanuy, Marcos; Alonso-Hernandez, Jesus; Gomez-Vilda, Pedro (MDPI, 2019-01-22)
    Hypokinetic dysarthria, which is associated with Parkinson’s disease (PD), affects several speech dimensions, including phonation. Although the scientific community has dealt with a quantitative analysis of phonation in ...
  • Enhancement of Conventional Beat Tracking System Using Teager–Kaiser Energy Operator 

    Ištvánek, Matěj; Smékal, Zdeněk (MDPI, 2020-01-04)
    Beat detection systems are widely used in the music information retrieval (MIR) research field for the computation of tempo and beat time positions in audio signals. One of the most important parts of these systems is ...
  • Fractional-Order Oscillator Design Using Unity-Gain Voltage Buffers and OTAs 

    Kartci, Aslihan; Herencsár, Norbert; Koton, Jaroslav; Brančík, Lubomír; Vrba, Kamil; Tsirimokou, Georgia; Psychalinos, Costas (IEEE, 2017-08-06)
    In this study, a new voltage-mode fractional-order oscillator using two unity-gain voltage buffers, two operational transconductance amplifiers, one resistor, and two capacitors is presented. The design procedure of ...
  • Pseudo-differential filter operating in current mode 

    Sládok, Ondřej; Velič, Ladislav; Koton, Jaroslav; Herencsár, Norbert (IEEE, 2018-12-30)
    In the paper, the theory of pseudo-differential filters is examined and supported by designing a fourth-order frequency filter operating in current mode and implemented as cascade connection of two basic second-order blocks. ...
  • Compact MOS-RC Voltage-Mode Fractional-Order Oscillator Design 

    Kartci, Aslihan; Herencsár, Norbert; Koton, Jaroslav; Psychalinos, Costas (IEEE, 2017-09-04)
    A new voltage-mode fractional-order oscillator, employing in total 12 Metal-Oxide-Semiconductor (MOS) transistors, is introduced in this paper. The proposed circuit is composed of two operational transconductance amplifiers, ...

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