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Multiple-Context Trust Model for a Social Network Using Personality Analysis
Švec, Tomáš ; Zbořil, František (referee) ; Samek, Jan (advisor)
Tato diplomová práce navazuje na bakalářskou práci, ve které byl vytvořen model důvěry pro sociální síť Facebook. Do tohoto modelu jsou zapracovány připomínky z konference UMAP 2013 a ověřena jeho škálovatelnost a flexibilita. V další části práce jsou uvedeny základní termíny z psychologie osobnosti a zkoumána závislost důvěry na osobnosti uživatele. Je vybrán model Big Five k reprezentaci charakteru uživatele a navržen dotazník, u nějž bude zkoumána korelace s modelem důvěry. Tato korelace je na základě sociologických poznatků odhadnuta a později ověřena na reálných uživatelích sociální sítě Facebook.
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Analysis of the network of information war experts in the Czech Republic
Kohút, Martin ; Střítecký, Vít (advisor) ; Beneš, Jan (referee)
The rise of 'information disorder' that undermine Western political principles has become one of the key political concerns in current Europe and United States and led to searching for new solutions how to fight the spread of mis- and dis-information. While the nature of this danger is still subject to much debate, we can already observe a rise of new experts explaining the threat of information war and how to deal with it. This research looks at how this novel problematization of security affects the politics of security expertise. Or, who gains power in this 'battle for truth'? Building on sociological approaches in security studies, this thesis focuses on the Czech Republic as a country that has become very active in the fight against disinformation and analyses the network of actors recognized as providing security expertise on information warfare. Based on social network analysis, the research maps the structure of social relations among actors recognized as experts and points out the empowerment of think-tanks and journalists, who build their expertise by bringing together their social capital, bridging knowledge of Russian politics and the new media environment, and introducing new practices to make the society resilient towards information warfare.
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Business of tourism services and possibilities of cooperation
KVĚTOŇOVÁ, Dominika
This thesis deals with a company named Angusfarm, which is situated in Soběsuky. The organization focuses mostly on providing services including accommodation, catering and introduces their main interest. It clarifies their cooperation and evolution, history and basic concepts of sociometry. Moreover, a major part of the thesis provides detailed information about stakeholders and the way they interact with the firm including analysis of the weaknesses and barriers that occur during cooperation with stakeholders. The research is based on Social Network Analysis. The Social network is a system of actors individual interlinks through their relations. The goal of this thesis is to analyze the current situation of cooperation with suppliers and to reveal which stakeholdes are the most important and how large is the connection between stakeholders and Angusfarm.
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User Impact in Social Networks
Jirout, Petr ; Otrusina, Lubomír (referee) ; Smrž, Pavel (advisor)
This thesis describes the design and implementation of a system for social media analysis. This system provides a way of identifying social media user's influence. The system has been open sourced under the MIT license and is designed to be easily extensible. Example usage of this system is demonstrated for a chosen use case of analysing several selected Czech individuals and political parties which are active on the Facebook social network. The thesis compared their influence and activity. A new way of activity and influence prediction has been proposed, based on the identification of dedicated users.
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Information spread in online communities: Example of the Czech foodie community
Němečková, Hana ; Souček, Jiří (advisor) ; Diviák, Tomáš (referee)
This master's diploma thesis focuses on the dissemination of information in the context of the Czech community of so-called foodies (people who like good food and are constantly looking for new experiences in this field). The theoretical part outlines the development of online communities environments, from web forums to social media. It also examines the possibility of applying Katz and Lazarsfeld's model of the two-step flow of communication in the online environment. We also explain the features of online food communication and present widespread social media foodie platforms, including the Czech app Scuk. The research part of the thesis uses the social network analysis method to identify opinion leaders of this online community in the environment of Twitter, Instagram and Scuk and examines how the information spread and the form of this community changes with regards to the particular online environment in question. The thesis also includes qualitative research on the impact of the online information spread on the offline environment - more specifically, on sales, visit rate and reputation of selected Prague restaurants.
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Webs of crime: Corruption in the perspective of social network analysis
Diviák, Tomáš ; Podaná, Zuzana (advisor) ; Buriánek, Jiří (referee)
In this thesis, I attempt to apply the network perspective to the study of corruption. First, I deal with current state of theory and research on corruption, which I find to be ignoring relations and interactions among offenders themselves. Then I review literature in the field of covert and criminal networks. The theoretical part of this thesis ends with brief descriptions of two major cases of political corruption in the Czech Republic - so called Nagy case and Rath case. In the methodological part, I introduce basic concepts of social network analysis as well as methods for positional analysis, especially the blockmodelling. In my research, I deal with exploratory analysis of both the aforementioned networks. Using proxy data, I analyse cohesion, centralization, centrality measures and cliques in these networks. Then I use conventional blockmodeling to search for roles and positions within these networks. My results suggest that both networks are dense and centralized with overlapping cliques contrary to other covert networks possibly accounting for their eventual disruption and failure. Positional analysis using varius methods such as CONCOR or different types of cluster analysis reveals a structure resembling the core-periphery model, which is supported by measuring coreness and finding a good...
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Structures of Public Communication at the News Server
Pilnáček, Matouš ; Vinopal, Jiří (advisor) ; Lupač, Petr (referee)
This thesis has an aim to bring theoretical and empirical knowledge, which can be used to improve quality of multi-agent based modelling of public opinion. In the theoretical part is introduced the analytical sociology as methodological basis and the theory of the public opinion process as substantive basis. Based on these theories is defined the aim of the empirical work: explore the stability of communication structures leading to emergence of mutual awareness of actors in the public debate. For the research are used news comments and its rating by other users from the news server iDNES.cz. The data are analyzed using social network analysis. It is revealed that a number of characteristics is applicable to multi-agent model. At the same time work brings interesting findings about the internet discussion and public communication. The main empirical finding is that despite large turn-over of discussing individuals, communication structures remain stable over time.
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The role of nongovernmental sector in the penitentiary and post-penitentiary care
Pilátová, Soňa ; Cejp, Martin (advisor) ; Frič, Pavol (referee)
Criminal recidivism rate has been increasing till 1990 in the Czech Republic. The Czech Republic is also on one of the leading positions in the prison population index list of countries. These two indicators should work as a red alert for us that our justice policies and the system of criminal prevention do not work effectively in the long run. We consider it important then that the increased attention should be paid to the whole system, the programs should be evaluated and the weak spots should be identified. Hence in this work we are looking at the topic form the structural-functional perspective. Using stakeholder analysis methods we identify the key actors of the field. The actors are divided into three basic sectors: governmental sector, market and the third sector. We then focus on the third sector and its' role in the penitentiary and post-release care with special attention to the relations and connections with the governmental sector. The weak spots and the examples of successful cooperation of the two sectors are explored with the tools of the social network analysis. The research results into the functional analysis of the role of the non-profit organizations in the field. Key findings of the research are formulated into the recommendations for stakeholder from both the third and the...
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Classification of rural municipalities by developmental potential
Skála, Vít ; Potůček, Martin (advisor) ; Majerová, Věra (referee) ; Kupčák, Václav (referee)
The issue of rural areas in the Czech Republic concerns about 5,800 municipalities, what is 93 % of all municipalities in the CR. These municipalities cover more than three-quarters of the CR territory where live over 3 million inhabitants, more than one third of the total population of the CR. Although there is consensus that the countryside faces a lot of problems which affect the lives of many people on a large territory, the adequate attention to this topic is still not given by official authorities. This confirms the facts that the CR has not adopted a clear definition of rural areas yet and the rural policy is not a priority of programs of political parties. But the urgency of solving problems in recent years stepped up. Quantity of scientific teams that focus on countryside problems increased. They are defined different typologies of rural areas, are seeking methods for dissolve disparities among different areas, there are efforts to measure the development potential of municipalities. This work is in accordance with these initiatives and by mixed research methods defines Development Potential Index (DPI). The DPI consists from 101 individual indicators. Verification of created index was done on data of 18 small villages located in three different regions of the Czech Republic, for which...
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