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Host distance measurement using ICMP protocol in IP networks
Fojtová, Lucie ; Komosný, Dan (referee) ; Burget, Radim (advisor)
Current internet more and more often faces the problem of the right definition of distance between the single hosts. The knowledge of this quantity influences the areas of the optimal lay-out of overlay multicast networks, the right selection of peer-to-peer network participant, or the simple decision of the end user: which one of the nearest mirrors to use for downloading datas. The nearest one doesn't have to mean the nearest in geographical point of view - the distance on Internet is usually expressed by quantities as latency or bandwidth. All these examples have got the saving of bandwidth in common and therefore economical saving. The methods of host position prediction in networks work on the basis of measuring latency parameter. The tools for measuring of this parameter will be set up in this thesis and at the same time it will be shown how geographical distance and latency correspond with each other.
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Spelling check in the czech texts
Bureš, Stanislav ; Pelka, Tomáš (referee) ; Fojtová, Lucie (advisor)
The Master‘s thesis deals with spell checking in the czech texts. It also contains an overview of the most used phonetic algorithms, including their properties and it deals with focus on metric methods, which are used to compare two words. The second part of this thesis deals with implementation of selected algorithms to the spell checker software and demonstration its spell - checking function in czech texts. The last part of this thesis deals about building context – sensitive algorithm, which is performs text correction.
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IP Television
Mašek, Pavel ; Fojtová, Lucie (referee) ; Číka, Petr (advisor)
The main objective of thesis is proposal and realization programme, which can be able to receive and play up multimedia stream broadcasted from server via packet networks. Protocol for transmission multimedia data is used to join connection between server and end point. And therefore protocols which handle data transmission like RTP/RTCP, RTSP and also SDP and SAP are described in thesis. Description mentioned records isn't effected to the smallest details, but acts about acquaint with problems. Further be brief described libraries that the stand by drafting application in view as well as used application that the function as the source of transmission multimedia. Than follows proposal solving and single step description of programme design in thesis. Analysis of working programme is performed in the last part of thesis.
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TRANSFORMATION OF THE POST-INDUSTRIAL AREA OF MODETA JIHLAVA
Fojtová, Lucie ; Štěpánková, Lenka (referee) ; Havliš, Karel (advisor)
The subject of this thesis is an architectural and urbanistic study of the transformation of the textile factory Modeta in Jihlava. The result is the design of a multifunctional social facility and its integration into the so-called Stříbrné údolí (Silver Valley) site and the overall urban structure of Jihlava. The proposal is divided into two main stages in connection with the city’s current needs. The first stage uses existing premises without major construction interventions and investments. The second stage deals with the detailed design of the multifunctional building and the urban design of the site, particularly in relation to the nearby zoological garden.
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Software support of education in classical cryptoanalysis
Fojtová, Lucie ; Hajný, Jan (referee) ; Burda, Karel (advisor)
Number of today's modern cipher systems are based on the classical symmetric cipher systems, such as the transposition principle in the DES cipher. Successful analysis and deciphering of these ciphers is therefore underlined by solid knowledge of the elementary cryptanalysis methods. This implies the importance of classical cryptanalysis education -- for better a understanding of the field, using visual means is of utmost importance. The aim of the thesis is to summarize selected cipher methods of the classical cryptanalysis, namely the mono-- and polyalphabetical substitution and transposition route cipher. Along with the theoretical part, ciphering/deciphering software is introduced to be used for educational purposes, particularly a website and a standalone application providing tools for ciphering, analysis and code breaking of the classical cipher based code.
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Historical Houses Jihlava
Fojtová, Lucie ; Navrkal, Martin (referee) ; Havliš, Karel (advisor)
The subject of this thesis is an urban and architectural study of the area around the historical Gate of Matky Boží in Jihlava and a proposal for a development plan for this part of the historic centre. From the point of view of the context of the whole city and the integration of the area into its structure, the proposal restores the pedestrian permeability of the area by means of a footbridge connecting Matky Boží Street with the suburb. In addition, two parking structures are proposed on the site to help minimize the parking problem in the historic core and make way for new public spaces. The architectural portion of the work deals with the renovation of two historic houses owned by the city. The emphasis is on a new, sustainable functional use of the spaces of these listed buildings. The result is the design of a complex of two houses with a publicly accessible inner courtyard, which together form a vibrant part of the urban centre of Jihlava suitable for living, working, culture, entertainment, leisure and recreation.
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Management of data networks based on IP protocol
Patala, Petr ; Fojtová, Lucie (referee) ; Novotný, Vít (advisor)
The objective of this master’s thesis is monitoring and management of computer networks via SNMP protocol and its practical application. The main part describes working with SNMPc program in an experimental network through implementation of its parts into the network and configuration of SNMP agents on routers, switch and end station. This thesis includes the results of traffic testing, disconnected links, effects of traffic load on QoS parameters, making longterm statistics, baselines and alarms. The thesis also includes parametres obtained with SNMP protocol from network nodes and end station.
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Network design support
Zemánek, Martin ; Fojtová, Lucie (referee) ; Pelka, Tomáš (advisor)
The work is focused on support of computer networks. It contains basic information about the network elements and possibilities of their involvement. The steps are described so that all procedures were intelligible. The work contains various thoughts on various options for integration of network and end elements to be as effective as possible. Shown are various examples of design documentation, which should serve primarily as a good springboard. We can see the lists of VLANs, IP addresses, calculations of energy consumption and cooling requirements. The introductory section also presents a variety of topology and characteristics of networks and network elements. We deal with various technologies such as QoS, PoE, EteherChannel, Trunking, and more. We are also stacking switches and effective involvement of network elements. All these information was collected and on the basis of these applications have been developed, which should serve as online network documentation. The application is writing with Nette Framework, which also has support for Czech, so it is much material available, which relieved the work in an environment of PHP, MySQL, HTML and CSS. The result is a basic version that is ready to further develop and to be as user friendly as possible and ease the job of designing the network.
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Extracting text data from the webpages
Mazal, Zdeněk ; Morský, Ondřej (referee) ; Fojtová, Lucie (advisor)
This work focus at data and especially text mining from Web pages, an overview of programs for downloading the text and ways of their extraction. It also contains an overview of the most frequently used programs for extracting data from internet. The output of this thesis is a Java program that can download text from a selection of servers and save them into xml le.
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Antispam filters
František, Jiří ; Fojtová, Lucie (referee) ; Pust, Radim (advisor)
The thesis is involves the desing antispam solution for operating system GNU/Linux. At the first is going through theory of transport, receive mail message and problematic of spam. The content of thesis is realize mail server with mail transfer agent Postfix. Amavis was used as antispam solution, which make an interface between Postfix and content checkers. This was created by SpamAssassin and ClavAV. Main goal was created aplication for setting of antispam filters. The result is possibility of setting a creating filters with black and white lists. Messages in quarantine ca
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