Now showing items 1-20 of 22

    • 2017 International Conference "Electrical, Electronic and Information Sciences“ (eStream) 

      Udris, Dainius; Plonis, Darius; Gedminas, Aurimas (2017)
    • Adaptive joint tracking of nonstationary system unknown parameters including the time delay 

      Pupeikis, Rimantas (2017 Open Conference of Electrical, Electronic and Information Sciences (eStream), April 27, 2017, Vilnius, Lithuania, 2017)
      The problem of joint parameters and time delay estimation or their tracking by processing of input-output observations arises, when LTI dynamical system has an unknown time delay. It is known that a mean-square error ...
    • Analysis of data pre-processing influence on intrusion detection using NSL-KDD dataset 

      Paulauskas, Nerijus; Auskalnis, Juozas (2017 Open Conference of Electrical, Electronic and Information Sciences (eStream), April 27, 2017, Vilnius, Lithuania, 2017)
      Data pre-processing for machine learning methods is key step for knowledge discovery process. Depending on nature of the data, pre-processing might take the majority time of data analysis. Correctly prepared data for ...
    • A cloud software isolation and cross-platform portability methods 

      Pozdniakova, Olesia; MaZeika, Dalius (2017 Open Conference of Electrical, Electronic and Information Sciences (eStream), April 27, 2017, Vilnius, Lithuania, 2017)
      Cloud computing is a rapidly emerging technology that provides elastic, automated and on demand infrastructure, platform and software services. The cloud computing service model supplies various compute resources such as ...
    • Comparison of CMOS power amplifier topologies for a wideband Doherty architecture 

      Vasjanov, Aleksandr; Barzdenas, Vaidotas (2017 Open Conference of Electrical, Electronic and Information Sciences (eStream), April 27, 2017, Vilnius, Lithuania, 2017)
      Two differential radio frequency (RF) power amplifier (PA) architectures are presented in this paper both of which can be used to implement a wideband Doherty PA. Classic PA architecture is compared to a SB (SB) PA in order ...
    • Control methods for piezomechanical robots moving in trajectories: Software and hardware 

      Macerauskas, Eugenijus; Janutėnaitė-Bagdonienė, Jūratė; Kulvietis, Genadijus (2017 Open Conference of Electrical, Electronic and Information Sciences (eStream), April 27, 2017, Vilnius, Lithuania, 2017)
      Practical application of smart materials for moving robots enabled to solve difficult mechatronic positioning and movement problems. Movement in such systems is generated using piezoelectrical devices. Therefore, classical ...
    • Design of multicore digitally controlled oscillator in 65 nm CMOS technology 

      Mačaitis, Vytautas; Navickas, Romualdas (2017 Open Conference of Electrical, Electronic and Information Sciences (eStream), April 27, 2017, Vilnius, Lithuania, 2017)
      This paper reports 2.37-5.94 GHz multicore CMOS LC Digitally-Controlled Oscillator (DCO) designed in 65 nm RF CMOS technology. The three cores of 6-bit switch capacitor array provides wide LC-DCO tuning range. With 1.8 V ...
    • Detecting sense of presence changes in EEG spectrum during perception of immersive audiovisual content 

      Abromavičius, Vytautas; Gedminas, Aurimas; Serackis, Artūras (2017 Open Conference of Electrical, Electronic and Information Sciences (eStream), April 27, 2017, Vilnius, Lithuania, 2017)
      Quality of Experience (QoE) in multimedia is amply investigated in order to assess the overall acceptability of the content as perceived subjectively by the end user. QoE is usually quantified by self-evaluated subjective ...
    • Effective background subtraction algorithm for food inspection using a low-cost near infrared camera 

      Tumas, Paulius; Serackis, Artūras (2017 Open Conference of Electrical, Electronic and Information Sciences (eStream), April 27, 2017, Vilnius, Lithuania, 2017)
      Computer vision-based image analysis is one of the most widely used food quality tool in food industry. It allows to perform the non-contact and low-cost measurements of inspected object's surface and color. The aim of ...
    • Enterprise architecture modeling based on cloud computing security ontology as a reference model 

      Janulevičius, Justinas; Marozas, Leonardas; Čenys, Antanas; Goranin, Nikolaj; Ramanauskaitė, Simona (2017 Open Conference of Electrical, Electronic and Information Sciences (eStream), April 27, 2017, Vilnius, Lithuania, 2017)
      The recent growth of popularity of cloud computing services delivers various benefits in multiple fields of activity, including reduced resource costs due to optimized hardware setup, as well as improving mobility. However, ...
    • An evaluation of hardware-software design for sound source localization based on SoC 

      Sledevič, Tomyslav; Laptik, Raimond (2017 Open Conference of Electrical, Electronic and Information Sciences (eStream), April 27, 2017, Vilnius, Lithuania, 2017)
      The article presents an evaluation of sound source localization algorithm based on field-programmable gate array (FPGA) and ARM processor. The proposed architecture performs the computation of azimuth and elevation angles ...
    • Fast binary features for speaker recognition in embedded systems 

      Laptik, Raimond; Sledevič, Tomyslav (2017 Open Conference of Electrical, Electronic and Information Sciences (eStream), April 27, 2017, Vilnius, Lithuania, 2017)
      Due to the growth in popularity of low power embedded devices with integrated biometric data and algorithms for user verification; speaker recognition problem with limited resources becomes more and more of an interest. ...
    • Hybrid rate control mechanisms in IEEE 802.11 networks 

      Cuzanauskas, Tomas (2017 Open Conference of Electrical, Electronic and Information Sciences (eStream), April 27, 2017, Vilnius, Lithuania, 2017)
      Over the time while IEEE 802.11 was developed, rate adaption algorithms had their own development stage. Most of rate adaption algorithms are not standardized and there are no rules on how one should operate. Therefore, ...
    • Investigation of frequency response of pockels cells based on beta barium borate crystals 

      Sinkevičius, Giedrius; Baskys, Algirdas (2017 Open Conference of Electrical, Electronic and Information Sciences (eStream), April 27, 2017, Vilnius, Lithuania, 2017)
      Piezoelectric ringing effect in beta barium borate (BBO) Pockels cell crystals, which reduces the contrast ratio of cell, has been investigated. The experimental model for the measurement of the piezoelectric ringing impact ...
    • Modeling of two-tier DDoS by combining different type of DDoS models 

      Ramanauskaitė, Simona; Čenys, Antanas; Goranin, Nikolaj; Janulevičius, Justinas (2017 Open Conference of Electrical, Electronic and Information Sciences (eStream), April 27, 2017, Vilnius, Lithuania, 2017)
      Modeling of Distributed Denial of Service (DDoS) attacks is a multidimensional problem as different resources are used at the same time. Existing DDoS attacks models analyze usage of only one resource as most attack relay ...
    • On parameterization of cell colonies images: ART classifier approach 

      Skirelis, Julius; Navakauskas, Dalius (2017 Open Conference of Electrical, Electronic and Information Sciences (eStream), April 27, 2017, Vilnius, Lithuania, 2017)
      Cell colonies counting is an important subset of cytometry research. That is why the article investigates possibility to use binary ART classifier for the flexible automatic parameterization of biological sample images. ...
    • Proceedings of the 2017 Open Conference of Electrical, Electronic and Information Sciences (eStream’2017): Organizers Foreword 

      Navakauskas, Dalius; Paulikas, Šarūnas; Plonis, Darius; Udris, Dainius (2017 Open Conference of Electrical, Electronic and Information Sciences (eStream), April 27, 2017, Vilnius, Lithuania, 2017)
    • Review of self tuning methods for direct conversion transceivers 

      Kladovšcikov, Leonid; Navickas, Romualdas (2017 Open Conference of Electrical, Electronic and Information Sciences (eStream), April 27, 2017, Vilnius, Lithuania, 2017)
      Integrated circuit fabrication technological processes affect error of transceiver's components, thus aims to minimize such deviation. This paper analyzes modern wireless transceiver calibration methods: feedforward, ...
    • Scalar control of six-phase induction motor 

      Rinkevičienė, Roma; Savickienė, Zita; Uznys, Donatas; Pitrėnas, Aurelijus; Šlepikas, Alvydas (2017 Open Conference of Electrical, Electronic and Information Sciences (eStream), April 27, 2017, Vilnius, Lithuania, 2017)
      Paper presents MATLAB Simulink model of symmetrical six-phase motor controlled by six-phase frequency converter and analyses its dynamic performance in volts per hertz mode. The new control blocks were elaborated, because ...
    • Selection of fractal dimension features for speech emotion classification 

      Tamulevičius, Gintautas; Karbauskaitė, Rasa; Dzemyda, Gintautas (2017 Open Conference of Electrical, Electronic and Information Sciences (eStream), April 27, 2017, Vilnius, Lithuania, 2017)
      Despite numerous studies during the last decade speech emotion recognition is still the task of limited success. Great efforts were made for extending emotional speech feature sets and selecting the most effective ones, ...