Location-Awareness in a Mobile Semantic Desktop Application

“SeMoDesk” is an approach to implement the Semantic Desktop on mobile devices. The idea is to allow users to manage their personal information space using personal ontologies. In this paper, we are presenting our solution to improve location-awareness in this scenario. We have designed a location and sensor ontology as an extension to the personal ontology. This ontology is then used to retrieve relevant resources according to the current user context. For this purpose we have designed a resource recommendation function that is utilizing the ontology graph to find other related resources such as persons or documents. We describe the design, implementation and test of an extended SeMoDesk with a focus on the integration of a RFID infrastructure for indoor location-awareness. In addition, we have implemented a method to display current resources and points-of-interests in the user vicinity on a map.