Group-aware Service Discovery using Effect Ontology for Conflict Resolution in Ubiquitous Environment

Abstract

 In this paper, we propose a group-aware service discovery architecture 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-aware service discovery architecture resolving conflict problem considering interaction space that is affecting scope of task to increase user's satisfaction. In this architecture, service ontology model including interaction space as well as QoS, preference, and intention expresses service information and task information. With service ontology model, the architecture 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 architecture provides higher user's satisfaction than previous research.

A Group-aware Service Discovery Scheme in Ubiquitous Environment using Service Assignment

“…Eventually, this situation decreases the service utilization and quality of the service. To overcome this, recent service discovery schemes [5,6] consider interaction of multiple users for the service utilization.…”

“…In the real situation, it is possible that multiple users request similar services with different purposes so that the conflict may happen when the same service is assigned to them. Therefore, recent researches [5,6] in the service discovery concern intensions of multiple users for conflict-free in the service utilization. However, they only focus on resolving conflicts according to the group context while they didn't grasp the common behaviors that lead to sharing a service for the same purpose.…”