DSpace at VGTU: Recent submissions

Now showing items 1-20 of 52072

    • Business process event log use for activity sequence analysis 

      Savickas, Titas; Vasilecas, Olegas (2015 Open Conference of Electrical, Electronic and Information Sciences (eStream), April 21, 2015, Vilnius, Lithuania, 2015)
      It is mandatory for nowadays businesses to improve their processes to survive. The basis of this improvement is business process analysis. The analysis can be done in multiple ways but one of the state of the art solutions ...

    • Dynamic business process model implementation solutions 

      Rusinaitė, Toma; Vasilecas, Olegas (2015 Open Conference of Electrical, Electronic and Information Sciences (eStream), April 21, 2015, Vilnius, Lithuania, 2015)
      Business processes in enterprise are changing due to changes in the environment of business systems. These changes need to be implemented with very low latency because it is necessary to maintain competitiveness. Usually ...

    • Research of Fitts' law characteristics using curved display, electroencephalography and eyes tracker 

      Radvilė, Eglė; Čenys, Antanas (2015 Open Conference of Electrical, Electronic and Information Sciences (eStream), April 21, 2015, Vilnius, Lithuania, 2015)
      Fitts law is a background for every end user system. The software design made by thousands of rules is orientated into task execution time. But in our days more and more people are using two displays (monitors) for daily ...

    • Revised 2D fast fourier transform 

      Pupeikis, Rimantas (2015 Open Conference of Electrical, Electronic and Information Sciences (eStream), April 21, 2015, Vilnius, Lithuania, 2015)
      It is assumed here, that some signal samples in the respective period, available for processing digitally by the fast Fourier transform (FFT) procedure for determining spectra of two-dimensional (2D) signals, are updated ...

    • Inertial sensor based object tracking method for video based technical support system 

      Plonis, Darius; Serackis, Artūras (2015 Open Conference of Electrical, Electronic and Information Sciences (eStream), April 21, 2015, Vilnius, Lithuania, 2015)
      Recently, live video streaming from hand- held devices entered mass market. Ordinary video conference systems were supplemented with additional features, such as marking in order to point attention of the conference ...

    • Measuring the speed of capillary soaking with adaptation regarding coordinates 

      Oliferovich, Nadezhda; Hryniuk, Dmitry; Orobei, Igor (2015 Open Conference of Electrical, Electronic and Information Sciences (eStream), April 21, 2015, Vilnius, Lithuania, 2015)
      The options of improving the accuracy of the soaking dynamics detector measurements are considered in the article. It is proposed to replace the capacitor of the sensing device with a completely metalized surface of the ...

    • Evaluation metrics for ontology-based security standards mapping 

      Olifer, Dmitrij (2015 Open Conference of Electrical, Electronic and Information Sciences (eStream), April 21, 2015, Vilnius, Lithuania, 2015)
      Harmonization methods provides techniques for different documents alignment, comparison and evaluation. Most popular harmonization method to align two documents is mapping, but this method is too complicated when we need ...

    • CMOS technology based LC VCO review 

      Macaitis, V.; Navickas, R. (2015 Open Conference of Electrical, Electronic and Information Sciences (eStream), April 21, 2015, Vilnius, Lithuania, 2015)
      This paper reviews CMOS LC Voltage Controlled Oscillators (VCO) for wireless multi-standard transceivers and wireless communications. The main parameters, such as phase noise, carrier frequency, supply voltage, tuning ...

    • Minimal cross-correlation criterion for speech emotion multi-level feature selection 

      Liogienė, Tatjana; Tamulevičius, Gintautas (2015 Open Conference of Electrical, Electronic and Information Sciences (eStream), April 21, 2015, Vilnius, Lithuania, 2015)
      The problem of speech emotion recognition commonly is dealt with by delivering a huge feature set containing up to a few thousands different features. This can raise the “curse of dimensionality” problem and downgrade ...

    • Indirect-feedback Sigma-Delta CMOS image sensors with SAR-based startup 

      Gao, Zhe; Liobe, John C.; Balon, Mark; Ignjatovic, Zeljko; Fiscella, Mark; Bocko, Mark F. (2015 Open Conference of Electrical, Electronic and Information Sciences (eStream), April 21, 2015, Vilnius, Lithuania, 2015)
      A novel type of CMOS image sensor (CIS) leveraging two types of analog-to-digital converters (ADCs) is presented in this work. Contrary to conventional ΣΔ image sensors, which implement ΣΔ ADCs at the column or pixel array ...

    • Comparative analysis of discrete aperiodic and optimal controllers for the synthesis of control systems for plants with delay 

      Lialko, Andrei (2015 Open Conference of Electrical, Electronic and Information Sciences (eStream), April 21, 2015, Vilnius, Lithuania, 2015)
      In this work are considered two analytical method of synthesis of control systems for objects with delay: the discrete aperiodic controller offered in R. Izerman's works and the optimal controller received on the basis of ...

    • Color spaces and histogram distances influence on people re-identification in video stream 

      Laptik, Raimond (2015 Open Conference of Electrical, Electronic and Information Sciences (eStream), April 21, 2015, Vilnius, Lithuania, 2015)
      The influence of color spaces and histogram distances on object re-identification in video stream is investigated. Dataset with images of pedestrians is being analyzed. A set of color spaces, histograms types and distance ...

    • Synthesis of control systems of multiply connected chemical-technological objects with delay 

      Kuzmicki, I. F.; Lapeto, A.V. (2015 Open Conference of Electrical, Electronic and Information Sciences (eStream), April 21, 2015, Vilnius, Lithuania, 2015)
      The paper considers the problems associated with production of extrusion devices. It talks about new methods for the synthesis of process control algorithms using the system embedding theory. In this paper, we show how to ...

    • The research of stiffness characteristics of active elements of harvester 

      Kazickij, Artur; Bučinskas, Vytautas; Sutinys, Ernestas (2015 Open Conference of Electrical, Electronic and Information Sciences (eStream), April 21, 2015, Vilnius, Lithuania, 2015)
      This paper is dedicated to one part of research of human mechanical energy harvester. Harvesters produce electrical energy from human's kinetic energy. Harvesting energy from human body is particularly useful for military ...

    • Implementing a rule-based dynamic business process modelling and simulation 

      Kalibatienė, Diana; Vasilecas, Olegas; Rusinaitė, Toma (2015 Open Conference of Electrical, Electronic and Information Sciences (eStream), April 21, 2015, Vilnius, Lithuania, 2015)
      Nowadays business processes (BP) are dynamic by their nature and affected by dynamically changing environment. However, traditional approaches and tools used to model, simulate and implement BP no longer covers the actual ...

    • Use runs tests for process control 

      Hryniuk, Dzmitry; Orobei, Igor; Suhorukova, Irina (2015 Open Conference of Electrical, Electronic and Information Sciences (eStream), April 21, 2015, Vilnius, Lithuania, 2015)
      The article is devoted to adaptation criterion series for use in process control algorithms. Criterion series is proposed for detecting abrupt changes in trend information and diagnostics of device. The use of this criterion ...

    • Sectional meander microstrip delay line: interconnection modelling 

      Gurskas, Antanas; Krukonis, Audrius; Urbanavičius, Vytautas (2015 Open Conference of Electrical, Electronic and Information Sciences (eStream), April 21, 2015, Vilnius, Lithuania, 2015)
      Model of sectional meander microstrip delay line (MMDL), which takes into account the mismatch and heterogeneity of sections, is created. Multiple sections are widely used in the planar delay lines (DL) to optimize filling ...

    • Packet size distribution tendencies in computer network flows 

      Garšva, Eimantas; Paulauskas, Nerijus; Gražulevičius, Gediminas (2015 Open Conference of Electrical, Electronic and Information Sciences (eStream), April 21, 2015, Vilnius, Lithuania, 2015)
      Network flows are easy to get and simple to store network activity data. The challenge is to interpret them efficiently from security and network engineering standpoint as payload and application layer protocol specific ...

    • Hybrid genetic algorithm 

      Dzidolikaitė, Agnė (2015 Open Conference of Electrical, Electronic and Information Sciences (eStream), April 21, 2015, Vilnius, Lithuania, 2015)
      In many research fields we have to deal with multidimensional data. Multidimensional data should be provided in a form that researcher could understand the structure of the given data. Graphical data visualization could ...

    • Game theory for future IEEE 802.11 spectrum sharing 

      Cuzanauskas, Tomas; Anskaitis, Aurimas (2015 Open Conference of Electrical, Electronic and Information Sciences (eStream), April 21, 2015, Vilnius, Lithuania, 2015)
      This article describes one of many possible paradigms for future wireless applications. The spectrum in which Wi-Fi operates these days is overcrowded and currently applied rules for Wi-Fi operation are not up-to-date. By ...