A group-aware service discovery scheme resolving conflict problem in ubiquitous computing

Abstract

In this dissertation, we propose a group-ware service discovery scheme resolving conflict problem in ubiquitous computing. In the past, researches on resolving conflict have used service``s QoS, user``s preference, and user``s intention. However, previous researches have the problem that it applies resolution scheme to non-conflicting situation because it does not consider space concept. Therefore, we propose a group-ware service discovery scheme resolving conflict problem considering interaction space that is affecting scope of task to increase user``s satisfaction. In this scheme, service ontology model including interaction space as well as QoS, preference, and intention expresses service information and task information. With service ontology model, the scheme detects and resolves conflict situation. And discovery scheme that is proposed resolution method finds non-conflict service with interaction space concept. Simulation result shows that proposed scheme provides higher user``s satisfaction than previous research.