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The facility of server geolocation
Šurina, Štefan ; Jirovský, Václav (advisor) ; Mišutka, Jozef (referee)
This diploma thesis outlines the methods of server geolocalization, that is, determining the physical location of servers based on network measurements. Especially, it sums up several groups of methods, all more or less usable. What is more, it comprises the implementation of couple of them, mainly those based on round trip measurements from distributed environment of well known data points. According to this, statistical comparison of their ability to geolocate precisely is made. Finally, this thesis also tries to prove theoretically how to pick up geolocation servers in order to minimize the error of potential measurements.
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Vyhledávací stroj pro matematiku
Mišutka, Jozef ; Skopal, Tomáš (referee) ; Galamboš, Leo (advisor)
The WWW is dominated by search engines such as Google. They are inseparable part of everyday search for information. Theoretical research field interested in searching, the information retrieval, focuses mainly on the natural language constructs - words. During the last years the field has been extended to other searchable content as well. The world of mathematical knowledge on the WWW has grown enormously. The importance of a general mathematical search engine is clear. However, this research field had been abandoned until very recently. Despite the fact that an active ongoing research is in progress, few practical results have been presented. The main goal of this thesis is to fill this gap. A new mathematical search engine was proposed with the focus on applicability. As the only capable search engine of indexing WWW effectively is the full text search engine it was used as the basis. The mathematical extension was designed as an extension which allows it to exploit and use all the advantages of the full text search engine. Most of the mathematical documents do not contain semantic information. The solution to this problem was one of the main goals of this thesis. The extensive evaluation showed that the proposed search engine has many advantages. The most important one is the usability over a large...
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Safe e-shop
Hejl, Tomáš ; Parízek, Pavel (referee) ; Mišutka, Jozef (advisor)
This thesis describes the common types of attacks against web applications and web pages in general, the protective measures against them and the specific application of these measures in the e-shop. The goal of this thesis is the safe application using common resources, without using third-party frameworks or existing solutions.
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Frontend pro matematicky vyhledavac
Klíma, Jaroslav ; Mišutka, Jozef (advisor) ; Šerý, Ondřej (referee)
Mathematical notation is becoming more important as software is more often used in day-to-day life. Schools are starting to support e-learning, science is penetrating WWW and search engines can handle more complex questions. In the present work, I summarise the state-of-art of available applications which support mathematical input and could be used for graphical user interface (UI) of a mathematical search engine - EgoMath. Since none of the evaluated UIs meet our requirements, I present the design and implementation of yet another mathematical user interface focusing on the identified issues. The main goal of the new mathematical UI is to help the user provide input which will be well understood by the underlying application. Input symbols can be selected from a large domain using a limited set of keys. This must be intuitive and the application should actively aid in this task by providing graphical hints based on the input expression in real time.
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