Context Information Model Using Ontologies and Rules Based on Spatial Object

Abstract

Context-aware is the core in ubiquitous environment of sensor network to support intelligent and contextual adaptation service. The new context information model is demanded to support context-aware applications. It should support various context representation and complex context-aware. In this paper, we define the context information according to context-aware process. The domain spatial ontology and application knowledge are represented using the spatial object model and the rules of expanded ontologies, respectively. The expression of abundant spatial ontology represents the context information about distance between objects and adjacent object as well as the location of the object. The proposed context information model which is able to exhibit various spatial context and recognizes complex spatial context through the existing GIS. This model shows that it can adapt to a large scale outdoor context-aware applications such as air pollution and prevention of disasters.

Context sensitive access control model for business processes

“…U praksi postoji više različitih mehanizama za predstavljanje (modelovanje konteksta). U radovima [176,199,239] identifikovano ješest najčešće korišćenih pristupa:…”