Abstract
The paper presents the use of methods of social network analyses in the area of online systems with a view to electronic auction. The paper presents a preliminary effort.
We use in our work data from the biggest Internet auction in Czech republic aukro.cz. The aim is to extract the needed data and to create tree structured representation with the aid of Matlab programming system.
The aim is to create a set of tools for visualization of analyses of online systems social networks that would enable among others the study of social interaction among sellers and buyers interacting within an online system. In this paper we describe obtaining the needed data from online electronic auction aukro.cz and creating of social networks and their visualization.