Petr Bujok

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The influence of parallelism on the performance of competitive adaptive differential evolution is studied. Two serial competitive differential evolution variants described in literature and sixteen novel parallel variants were experimentally compared. All the parallel differential evolution variants in this study are based on a migration model with the star(More)
The paper focuses to the analysis of attacks against the honeynet from various autonomous systems (AS) in the Internet. The probes are distributed across various network types - academic, commercial VPS, ISP - in Czech Rep. and Slovakia. Attacker behavior differences per AS as well as activities done in the honeynet on individual probes were analyzed.(More)
The paper is devoted to an analysis of a one-year-long period of operation of a honeynet composed of 6 Dionaea honeypots emulating Windows services. The analysis focused on the frequency of attacks according to the location of individual honeypots (sensors) as well as to the geographical location of attackers. From the statistical processing of the results,(More)