A HUMAN-CENTRIC APPROACH TO GROUP-BASED CONTEXT-AWARENESS
Nasser Ghadiri1,Ahmad Baraani-Dastjerdi2,*,Nasser Ghasem-Aghaee3,Mohammad A. Nematbakhsh4
1Department of Computer Engineering, University of Isfahan, Isfahan, Iran
2Department of Computer Engineering, University of Isfahan, Isfahan, Iran
3Department of Computer Engineering, University of Isfahan, Isfahan, Iran
4Department of Computer Engineering, University of Isfahan, Isfahan, Iran
ABSTRACT
The emerging need for qualitative approaches in context-aware information processing calls for proper modelling of context information and efficient handling of its inherent uncertainty resulted from human interpretation and usage. Many of the current approaches to context-awareness either lack a solid theoretical basis for modelling or ignore important requirements such as modularity, high-order uncertainty management and group-based context-awareness. Therefore, their real-world application and extendibility remains limited. In this paper, we present f-Context as a service-based contextawareness framework, based on language-action perspective (LAP) theory for modelling. Then we identify some of the complex, informational parts of context which contain high-order uncertainties due to differences between members of the group in defining them. An agent-based perceptual computerarchitecture is proposed for implementing f-Context that uses computing with words (CWW) for handling uncertainty. The feasibility of f-Context is analyzed using a realistic scenario involving a group of mobile users. We believe that the proposed approach can open the door to future research on context-awareness by offering a theoretical foundation based on human communication, and a service-based layered architecture which exploits CWW for context-aware, group-based and platform-independent access to information systems.
KEYWORDS
Language-Action Perspective, Uncertainty; Computing with Words; Spatial reasoning; Agent-based systems; Pragmatic web; Community consensus; Location-dependent social networks
Original Source Link : http://airccse.org/journal/nsa/0111jnsa04.pdf
No comments:
Post a Comment