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Reputation-based Adaptation for Structured P2P Networks
Ladecký, Martin ; Novotný, Miroslav (advisor) ; Malohlava, Michal (referee)
The goal of this thesis is to implement reputation based trust management into the routing protocol of peer-to-peer network. This implementation is compared with current standard peer-to-peer security implementations - mostly no security at all and reputation based management without implementation in the routing mechanism. The objective is to improve routing performance and efficiency of secure algorithms.
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Education to spirituality
Novotný, Miroslav ; Strouhal, Martin (referee) ; Pelikán, Jiří (referee)
The aim of this work is to create a pedagogical concept of the education for spirituality. I try to map the various views of human spirituality. The spirituality is one of the important philosophy topics, so I dedicated this view most. Next is the psychology, within witch I strive to grab this term in a scientific way. I also notice the changes in the perception of the term spirituality, namely in the relation to the religion, as well as to the usage of this term, which is equivalent to the previously frequently used term inwardness. Marginally I also mention some theories related to the spirituality in the field of biology, quantum physics and brain research. After the initiation of some way outs, from which can be created the conceptual apparatus, I come to my own definition of the spirituality, I concretize the education to the spirituality including the initiation of goals, methods and means of this education. The part of this work is also a small study, in which I try to find out, what is the degree of the respondents spirituality, what forms and methods do the respondents evolve their spirituality and I am looking for the contexts between the respondents characteristics by practicing the various technics and the spirituality rate. I suppose that this work could serve as a guide for teachers who would...
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Trust Management Systems in P2P Networks
Novotný, Miroslav ; Zavoral, Filip (advisor) ; Janeček, Jan (referee) ; Fujita, Satoshi (referee)
The architecture of certain class of services, such as distributed computing, distributed storages or content delivering networks shifts from the traditional client-server model to more scalable and robust peer to peer networks. Providing proper protection to such complex, open and anonymous systems is very complicated. Malicious peers can cooperate and develop sophisticated strategies to bypass existing security mechanisms. Recently, many trust management systems for P2P networks have been proposed. However, their effectiveness is usually tested only against simple malicious strategies. Moreover, a complex comparison of resistance of a particular method is missing. In this thesis, we (1) propose a new trust management system called BubbleTrust and (2) develop a simulation framework for testing trust management systems against various malicious strategies. Our simulation framework defines several criteria which determine the success of each malicious strategy in the network with a given system. We present results of four trust management systems that represent main contemporary approaches and BubbleTrust.
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The Quality of life for drug dependent clients before and after the institutional treatment in Prague
Brachtlová, Veronika ; Šťastná, Lenka (advisor) ; Novotný, Miroslav (referee)
BACKGROUND: Quality of life is defined by WHO as an individual perception of one's own position in life, taking into account cultural aspects of the society and a system of values in which the individual lives, as well as his/her goals, standard of living and interests. Because quality of life measure is strongly a subjective measure, it can only be assessed by the individual himself/herself. AIMS: The aim of this thesis was to compare of the quality of life of drug users before and after institutional treatment. SAMPLE AND METHODS: WHOQOL- BREF questionnaire was employed to collect the data. A research sample consisted of all clients (both men and women) in the institutional treatment at the department of treatment of dependencies at the Clinic of Addictology, The clients filled the questionnaire in before treatment entry or within the first week after treatment entry, and at the release from the treatment. RESULTS: None of the clients was very satisfied with his/her quality of life before treatment. After treatment, the quality of life was perceived as positive rather by women. After treatment, 44% of women found their quality of life good, whereas it was assessed as very good by 13% of women. The overall perception of the quality of life in the male population has not changed much. Regarding the...
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Implementation of alternative metric in AODV protocol
Dajčár, Matej ; Novotný, Miroslav (advisor) ; Peterka, Jiří (referee)
There is a lot of alternative routing protocols used in wireless communications. One of these protocols is Ad Hoc On-Demand Distance Vector routing protocol (AODV). This protocol is used in the mobile ad-hoc networks which are self-configuring networks consisting of the independent mobile devices where each one of these devices acts as a router and forwards traffic from other devices. AODV protocol uses hop count as a routing metric, but in the many cases this metric is not optimal in the wireless networks. The goal of this thesis is to propose the alternative criteria which can be used to select best routes. An integral part of this thesis is the experimental implementations of suggested metrics which will be simulated and evaluated in the selected simulation tool. The conclusion of the thesis analyses results obtained from the simulations of the individual suggested versions.
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Web-based interface for software project management with emphasis to manpower administration
Täuber, Jiří ; Novotný, Miroslav (referee) ; Bureš, Tomáš (advisor)
There are many different aplications which help with project management nowdays. Project management applications differ considerably in their options, capabilities and most of all in their area of focus. Applications focused on coordinating work of group of people are among them. There are also many webpages that give their users the means to offer or request workforce. It is surprising that nobody has thought about bringing those two ideas together. It offers significant flexibility, especially in the area of software development. Workgroups can be easily created and disbanded as needed. The goal of this project is to create a simple web application which will provide dynamic environment for easy collaboration of many users on many projects. Part of the project will be a very simple project management software focused on manpower administration as well as a place to publish workforce supply and demmand advertisements.
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Medicine in the Life of Religious Orders during the 17th Century: Example of the Society of Jesus
Černý, Karel ; Říhová, Milada (advisor) ; Novotný, Miroslav (referee) ; Čornejová, Ivana (referee)
1 Summary The thesis deals with relation of the medicine and the religious ambient in the 17th century. The original purpose of this study was to describe medical features of everyday life in colleges of the Jesuit order. However during the research I came across several questions that I had to answer in context of the Czech history of medicine, and that is why this text has three main foci. Firstly I have collected and described those features of recent development of foreign medical history, which I consider to be important for my purpose, and which have not been reflected in the medical history so far. Among others socio-constructivist and anthropological approaches to terms like "illness", "health", "healing", "academic medicine" etc. are discussed. With respect to the second part I had also to deal with the issue of retrospective diagnoses and particularly with history of the plague. Secondly, regarding the fact that healing in a Jesuit community was always associated with a strong religious aspects, I had to analyse a problem of miraculous cures and their social and cultural context. Medical history has always been an interdisciplinary field but in this case I had to rely on methods based on humanities rather than on sciences. As a starting point I have used a list of more that 1000 miracles ascribed...
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Distributed computing
Šišaj, Róbert ; Novotný, Miroslav (referee) ; Dvořák, Zdeněk (advisor)
The aim of this work is creating a system for distributed computing in smaller LAN networks. The system should provide a platform for various applications, which will be able to run parallel processing of computationally expensive tasks (e.g. searching for prime numbers, rendering video sequences, editing photographs, ...). The reader will learn about distributed systems, about their advantages and disadvantages and will get knowledge of definitions and key words from this area. The work also makes a comparison of this system and a few existing systems (SETI@home, distributed.net). An analysis of weak parts of the proposed system is included in this paper and also some ideas and thoughts on some improvements of the system in the future.
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