Search Results - "Rezac, Filip"

Refine Results
  1. 1

    Augmenting Speech Quality Estimation in Software-Defined Networking Using Machine Learning Algorithms by Rozhon, Jan, Rezac, Filip, Jalowiczor, Jakub, Behan, Ladislav

    Published in Sensors (Basel, Switzerland) (17-05-2021)
    “…With the increased number of Software-Defined Networking (SDN) installations, the data centers of large service providers are becoming more and more agile in…”
    Get full text
    Journal Article
  2. 2

    Session Initiation Protocol Proxy in a Role of a Quality of Service Control Application in Software-Defined Networks by Zeman, Dalibor, Rezac, Filip, Voznak, Miroslav, Rozhon, Jan

    Published in Designs (01-12-2022)
    “…This article deals with quality of service (QoS) in internet protocol (IP) telephony by applying software-defined networking (SDN) tools. The authors develop a…”
    Get full text
    Journal Article
  3. 3

    Efficient Detection of Spam over Internet Telephony by Machine Learning Algorithms by Behan, Ladislav, Rozhon, Jan, Safarik, Jakub, Rezac, Filip, Voznak, Miroslav

    Published in IEEE access (01-01-2022)
    “…Recent trends show a growing interest in VoIP services and indicate that guaranteeing security in VoIP services and preventing hacker communities from…”
    Get full text
    Journal Article
  4. 4

    ProRE: An ACO- based programmer recommendation model to precisely manage software bugs by Kukkar, Ashima, Kumar Lilhore, Umesh, Frnda, Jaroslav, Kaur Sandhu, Jasminder, Prava Das, Rashmi, Goyal, Nitin, Kumar, Arun, Muduli, Kamalakanta, Rezac, Filip

    “…The process of assigning bugs to particular programmers is called bug assignment in software engineering. The programmer can fix the bugs by applying their…”
    Get full text
    Journal Article
  5. 5

    Different Approaches for Face Authentication as Part of a Multimodal Biometrics System by Tovarek, Jaromir, Voznak, Miroslav, Rozhon, Jan, Rezac, Filip, Safarik, Jakub, Partila, Pavol

    “…This paper describes different approaches for the face authentication from the features and classification abilities point of view. Authors compare two types…”
    Get full text
    Journal Article
  6. 6

    Automatic Classification of Attacks on IP Telephony by Safarik, Jakub, Partila, Pavol, Rezac, Filip, Macura, Lukas, Voznak, Miroslav

    “…This article proposes an algorithm for automatic analysis of attack data in IP telephony network with a neural network. Data for the analysis is gathered from…”
    Get full text
    Journal Article
  7. 7

    Security Analysis System to Detect Threats on a SIP VoIP Infrasctructure Elements by Rezac, Filip, Voznak, Miroslav, Tomala, Karel, Rozhon, Jan, Vychodil, Jiri

    “…SIP PBX is definitely the alpha and omega of any IP telephony infrastructure and frequently also provides other services than those related to VoIP traffic…”
    Get full text
    Journal Article
  8. 8

    Security Risks in IP Telephony by Rezac, Filip, Voznak, Miroslav

    “…This paper deals with VoIP communication security and various techniques of VoIP attacks. We divided these threats in several categories according to their…”
    Get full text
    Journal Article
  9. 9

    Speech Quality Monitoring in Czech National Research Network by Voznak, Miroslav, Rezac, Filip, Rozhon, Jan

    “…This paper deals with techniques of measuring and assessment of the voice transmitted in IP networks and describes design of quality measurement, which can be…”
    Get full text
    Journal Article
  10. 10

    Delay Variation Model with Two Service Queues by Rezac, Filip, Voznak, Miroslav, Hromek, Frantisek

    “…Delay in VoIP technology is very unpleasant issue and therefore a voice packets prioritization must be ensured. To maintain the high call quality a maximum…”
    Get full text
    Journal Article
  11. 11

    Applied Multiprotocol Routing in IP Telephony by Voznak, Miroslav, Rezac, Filip, Rozhon, Jan

    “…The aim of the project was to create a multi-protocol system using SIP, H.323 and MGCP standards, which would ensure routing to various types of VoIP networks…”
    Get full text
    Journal Article
  12. 12

    IP Telephony Based Danger Alert Communication System and Its Implementation by Rezac, Filip, Kolenovsky, Filip, Mikulec, Martin, Voznak, Miroslav, Rozhon, Jan, Vychodil, Jiri, Tomala, Karel, Safarik, Jakub

    “…The paper deals with development of a web application allowing to deliver pre-recorded voice messages by using SIP generator. The developed application is a…”
    Get full text
    Journal Article
  13. 13

    Analysis of the Public Channel of Quantum Key Distribution Link by Mehic, Miralem, Maurhart, Oliver, Rass, Stefan, Komosny, Dan, Rezac, Filip, Voznak, Miroslav

    Published in IEEE journal of quantum electronics (01-10-2017)
    “…Quantum key distribution (QKD) relies on the laws of physics to establish a symmetric binary key between remote parties. A QKD link involves the realization of…”
    Get full text
    Journal Article
  14. 14

    IP Telephony Server Emulation for Monitoring and Analysis of Malicious Activity in VOIP Network by Jakub Safarik, Miroslav Voznak, Filip Rezac, Lukas Macura

    “…The paper aims at gathering information about attacks from real internet infrastructure and their analysis. For this purpose, we prepared a set of honeypots…”
    Get full text
    Journal Article
  15. 15

    Voice Messaging System as a Form of Distribution of an Urgent Information by Rezac, Filip, Voznak, Miroslav, Tomala, Karel

    Published in Wireless personal communications (01-11-2015)
    “…Article discusses a research about communication system intended to warn people in danger. This system aims to distribute a voice message with pre-recorded…”
    Get full text
    Journal Article
  16. 16

    Exploratory Analysis of Virtualization Tools in Delay-Sensitive Environment by Miroslav Voznak, Jiri Slachta, Filip Rezac, Jan Rozhon

    “…This article deals with an exploratory analysis of virtualized real-time applications. We compare selected virtualizations tools and present the achieved…”
    Get full text
    Journal Article
  17. 17

    Bruteforce Attacks Blocking Solution on Embedded SIP Communication Server by Filip Rezac, Jakub Safarik, Miroslav Voznak, Jan Rozhon, Karel Tomala, Jiri Vychodil

    “…This article deals with embedded SIP communication server with an easy integration into the computer network based on open source solutions and its effective…”
    Get full text
    Journal Article
  18. 18

    Prediction of Speech Quality Based on Resilient Backpropagation Artificial Neural Network by Orcik, Lukas, Voznak, Miroslav, Rozhon, Jan, Rezac, Filip, Slachta, Jiri, Toral-Cruz, Homero, Lin, Jerry Chun-Wei

    Published in Wireless personal communications (01-10-2017)
    “…The paper presents a system for monitoring and assessment the speech quality in the IP telephony infrastructures using modular probes. The probes are placed at…”
    Get full text
    Journal Article
  19. 19

    Analysis of the IP telephony security issues using automatic neural network classifier by Rezac, Filip, Rozhon, Jan, Safarik, Jakub, Voznak, Miroslav, Bajakova, Zuzana

    “…The complexity and robustness of the currently used IP telephony infrastructures requires systematic monitoring of the network against security threats, where…”
    Get full text
    Conference Proceeding
  20. 20

    Modelling the impact of network features on speech quality in voice over IP by Rozhon, Jan, Rezac, Filip, Slachta, Jiri, Voznak, Miroslav

    “…With Voice and Video over IP spreading to the new areas of mobile communications, the speech quality becomes a concern of high importance. Monitoring systems…”
    Get full text
    Conference Proceeding