Social Community in Social Networks on the Internet

The main purpose of the diploma thesis is to study the environment and functioning of the selected community Islám v ČR nechceme (No Islam in the Czech Republic) on Facebook. The analysis focuses mainly on obtaining knowledge and information about the links of the group with other subjects on the social network and also on covering the growing interest in the studied group. The analysis is carried out using Gephi and Microsoft Excel software. The results of both analyses bring the knowledge necessary to fulfil the purpose of the diploma thesis. The proposed methods can be applied to analyse groups of various sizes and specialisation. These analyses and information gained in this way may be applied as part of security management, specifically for the study and mapping of extremist groups, which may significantly facilitate the decision-making processes of the security authorities