Seungjong Chung

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Recently semantic web studies are running only complicated direction, so its technology does not seem to be applied at an early date. This paper suggests a simple structure of ontology and a method to utilize this ontology in contextual advertising. The present contextual advertising systems use DB systems for search-based advertising. In these systems,(More)
MMORPGs may involve a great number of concurrent players, and those servers usually have to manage hundred, or even thousands of avatars coexisting in the same virtual world. So if failing to send a command or an event message, or sending it too late may cause damages to the avatar evolution(death, injury, loss of resources), and may result in unjustified(More)
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